Table of Contents
Filed Pursuant to Rule 424(b)(5)
Registration No. 333-268084

The information in this preliminary prospectus supplement is notcomplete and 
may be changed. This preliminary prospectus supplement and the accompanying 
prospectus are not an offer to sell these securities and are not soliciting an 
offer to buy these securities in any jurisdiction where the offer or sale is 
notpermitted.

                 Subject to Completion,dated September 3, 2024                  
Preliminary Prospectus Supplement
(To Prospectus dated November 1, 2022)
                                       $                                        


                                       %                                        
                                 Fixed-to-Fixed                                 
                                   ResetRate                                    
                       Junior Subordinated Notes due 2055                       


We are offering$of our%
Fixed-to-Fixed
Reset Rate Junior Subordinated Notes due 2055 (the "Notes"). The Notes 
willbear interest (i) from and including September, 2024 (the "original issue 
date") to, but excluding, March , 2035 at the rate of% per annum and (ii) from 
andincluding March, 2035, during each Reset Period (as defined herein) at a 
rate per annum equal to the Five-year U.S. Treasury Rate (as defined herein) 
as of the most recent Reset Interest Determination Date (as definedherein) 
plus a spread of%, to be reset on each Reset Date (as defined herein), and 
will mature on March, 2055. Interest on the Notes will accrue from and 
including the original issue date andwill be payable semi-annually in arrears 
on Marchand Septemberof each year, beginning on March, 2025.
So long as no event of default (as defined herein) with respect to the Notes 
has occurred and is continuing, we may, at our option, defer interest payments 
onthe Notes, from time to time, for one or more deferral periods of up to 20 
consecutive semi-annual Interest Payment Periods (as defined herein) each. 
During any deferral period, interest on the Notes will continue to accrue at 
the then-applicableinterest rate on the Notes (as reset from time to time on 
any Reset Date occurring during such deferral period in accordance with the 
terms of the Notes) and, in addition, interest on deferred interest will 
accrue at the then-applicable interestrate on the Notes (as reset from time to 
time on any Reset Date occurring during such deferral period in accordance 
with the terms of the Notes), compounded semi-annually, to the extent 
permitted by applicable law. See "Supplemental Descriptionof the Notes--Option 
to Defer Interest Payments."
At our option, we may redeem some or all of the Notes at any time and from 
time to time at theapplicable redemption price described herein.
The Notes will be issued in denominations of $2,000 and integral multiples of 
$1,000 in excess thereof.
The Notes will be our unsecured obligations and will rank junior and 
subordinate in right of payment to the prior payment in full of our existing 
andfuture Senior Indebtedness (as defined herein). The Notes will rank equally 
in right of payment with our existing 6.950%
Fixed-to-Fixed
Reset Rate Junior SubordinatedNotes due 2054 and with any future unsecured 
indebtedness that we may incur from time to time if the terms of such 
indebtedness provide that it ranks equally with the Notes in right of payment.



Investing in the Notes involves risks. For a discussion of these risks, please 
refer to "
Risk Factors
" beginning onpage
S-8
of this prospectus supplement and the "Risk Factors" section in our most 
recent Annual Report on Form
10-K.
Neither the Securities and Exchange Commission nor any state securities 
commission has approved or disapproved of the Notes or passed upon the 
adequacy oraccuracy of this prospectus supplement or the accompanying 
prospectus. Any representation to the contrary is a criminal offense.


                                                                   
              Price to     Underwriting     Proceeds to Us Before  
              Public        Discount              Expenses         
                (1)                                                
Per Note               %                %                         %
Total Notes     $              $                    $              



(1) Plus accrued interest from September, 2024, if settlement occurs after that date.

The Notes will be a new issue of securities with no established trading 
market. The Notes will not be listed on any securities exchangenor do we 
intend to seek their quotation on any automated dealer quotation system.
We expect that delivery of the Notes will be made to investors throughthe 
book-entry delivery system of The Depository Trust Company ("DTC") for the 
accounts of its participants, including Clearstream Banking S.A. ("Clearstream")
 and Euroclear Bank SA/NV ("Euroclear"), on or aboutSeptember, 2024.


                          Joint Book-Running Managers                           


                                                                                             
BofA Securities  Goldman Sachs & Co. LLC  J.P. Morgan  Morgan Stanley  Wells Fargo Securities

           The date of this prospectus supplement is September , 2024           

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                               TABLE OF CONTENTS                                
                             Prospectus Supplement                              


                                                        
                                                  Page  
About This Prospectus Supplement                   S-ii 
Forward-Looking Statements                        S-iii 
Where You Can Find More Information                 S-v 
Incorporation by Reference                          S-v 
Summary                                             S-1 
The Offering                                        S-3 
Risk Factors                                        S-8 
Use of Proceeds                                    S-14 
Supplemental Description of the Notes              S-15 
Material U.S. Federal Income Tax Considerations    S-28 
Underwriting (Conflicts of Interest)               S-35 
Legal Matters                                      S-42 
Experts                                            S-42 

                                   Prospectus                                   


                                                                  
                                                             Page 
About This Prospectus                                           1 
Risk Factors                                                    2 
Forward-Looking Statements                                      3 
Where You Can Find More Information                             5 
NiSource Inc.                                                   7 
Use of Proceeds                                                 8 
Description of Capital Stock                                    9 
Description of Depositary Shares                               20 
Description of the Debt Securities                             22 
Description of Warrants                                        30 
Description of Stock Purchase Contracts and Stock Purchase     31 
Book-Entry Issuance                                            32 
Plan of Distribution                                           34 
Legal Opinions                                                 36 
Experts                                                        36 


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                        ABOUT THIS PROSPECTUS SUPPLEMENT                        
This document is in two parts. The first part, the prospectus supplement, 
describes the specific terms of the offering and certain othermatters relating 
to NiSource Inc. The second part, the accompanying prospectus, gives more 
general information, some of which does not apply to this offering. To the 
extent there is a conflict or inconsistency between the information contained 
orincorporated by reference in this prospectus supplement (or any related free 
writing prospectus issued by us), on the one hand, and the information 
contained or incorporated by reference in the accompanying prospectus, the 
information contained orincorporated by reference in this prospectus 
supplement (or any related free writing prospectus issued by us) shall control.

Theregistration statement of which this prospectus supplement and the 
accompanying prospectus form a part, including the exhibits to the 
registration statement, provides additional information about us and our 
securities offered under this prospectussupplement and the accompanying 
prospectus. Specifically, we have filed with the Securities and Exchange 
Commission ("SEC") and incorporated by reference, and may in the future file 
and incorporate by reference, certain legal documentsthat control the terms of 
our securities offered by this prospectus supplement and the accompanying 
prospectus as exhibits to the registration statement.
This prospectus supplement, the accompanying prospectus and certain of the 
documents incorporated by reference herein and therein contain, andany related 
free writing prospectus issued by us may contain, summaries of information 
contained in documents that we have filed or will file as exhibits to our SEC 
filings. Such summaries do not purport to be complete and are subject to, 
andqualified in their entirety by reference to, the actual documents filed 
with the SEC.
You should read this entire prospectus supplementand the accompanying 
prospectus, including the documents incorporated by reference in this 
prospectus supplement under "Incorporation By Reference," and any related free 
writing prospectus issued by us and filed with the SEC. We have not,and the 
underwriters have not, authorized anyone to provide you with different or 
additional information. We and the underwriters take no responsibility for, 
and can provide no assurance as to the reliability of, any other information 
that othersmay give to you. This prospectus supplement and the accompanying 
prospectus may only be used where it is legal to sell the securities offered 
hereby. The information in this prospectus supplement, the accompanying 
prospectus and the documentsincorporated by reference herein and therein is 
accurate only as of the date of the respective documents in which the 
information appears. Our business, financial condition, results of operations 
and prospects may have changed since those dates, andneither the delivery of 
this prospectus supplement and the accompanying prospectus nor any sale 
hereunder shall, under any circumstances, create any implication to the 
contrary.
When we refer to "NiSource," "we," "our," "ours" and "us" in this prospectus 
supplementunder the heading "Forward Looking Statements" we mean NiSource Inc. 
and its subsidiaries, through which substantially all of NiSource Inc.'s 
operations are conducted. When such terms are used elsewhere in this 
prospectus supplement,we refer only to NiSource Inc., as the issuer of 
securities in this offering, and not to any of its direct or indirect 
subsidiaries or affiliates except as expressly provided or the context 
otherwise requires.

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                           FORWARD-LOOKING STATEMENTS                           
This prospectus supplement, the accompanying prospectus, and the information 
incorporated by reference herein and therein, include forward-looking 
statements within the meaning of Section 27A of the Securities Act of 1933, as 
amended (the "Securities Act"), and Section 21E of the Securities Exchange Act 
of 1934, as amended (the "Exchange Act").Forward-looking statements are based 
on management's beliefs and assumptions and can often be identified by terms 
and phrases that include, "anticipate," "believe," "intend," "estimate,""expect,
" "continue," "should," "could," "may," "plan," "project," "predict," "will," 
"potential," "forecast," "target,""guidance," "outlook," or other similar 
terminology. Various factors may cause actual results to be materially 
different than the suggested outcomes within forward-looking statements; 
accordingly, there is no assurance that suchresults will be realized. These 
factors include, but are not limited to:


 .  our ability to execute our business plan or growth strategy, including utility infrastructure investments;



 .  potential incidents and other operating risks associated with our business;



 .  our ability to work successfully with our third-party investors;



 .  our ability to adapt to, and manage costs related to, advances in technology,
    including alternative energysources and changes in laws and regulations;     



 .  our increased dependency on technology;



 .  impacts related to our aging infrastructure;



 .  our ability to obtain sufficient insurance coverage and whether such coverage will protect us against significantlosses;



 .  the success of our electric generation strategy;



 .  construction risks and supply risks;



 .  fluctuations in demand from residential and commercial customers;



 .  fluctuations in the price of energy commodities and related transportation costs or an inability
    to obtain anadequate, reliable and cost- effective fuel supply to meet customer demand;         



 .  our ability to attract, retain or                               
    re-skill                                                        
    a qualified, diverse workforceand maintain good labor relations;



 .  our ability to manage new initiatives and organizational changes;



 .  the actions of activist stockholders;



 .  the performance and quality of third-party suppliers and service providers;



 .  potential cybersecurity attacks or security breaches;



 .  increased requirements and costs related to cybersecurity;



 .  any damage to our reputation;



 .  the impacts of natural disasters, potential terrorist attacks or other catastrophic events;



 .  the physical impacts of climate change and the transition to a lower carbon future;



 .  our ability to manage the financial and operational risks related to achieving our carbon    
    emission reductiongoals, including our Net Zero Goal (as defined in our Annual Report on Form
    10-K                                                                                         
    for the year ended                                                                           
    December 31, 2023);                                                                          



 .  our debt obligations;



 .  any changes to our credit rating or the credit rating of certain of our subsidiaries;



 .  adverse economic and capital market conditions, including increases in  
    inflation or interest rates, recession, orchanges in investor sentiment;


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 .  economic regulation and the impact of regulatory rate reviews;



 .  our ability to obtain expected financial or regulatory outcomes;



 .  economic conditions in certain industries;



 .  the reliability of customers and suppliers to fulfill their payment and contractual obligations;



 .  the ability of our subsidiaries to generate cash;



 .  pension funding obligations;



 .  potential impairments of goodwill;



 .  the outcome of legal and regulatory proceedings, investigations, incidents, claims and litigation;



 .  compliance with changes in, or new interpretations of applicable laws, regulations and tariffs;



 .  the cost of compliance with environmental laws and regulations and the costs of associated liabilities;



 .  changes in tax laws or the interpretation thereof; and



 .  other matters set forth in Item 1, "Business," Item 1A, "Risk Factors" and Part II, Item 7,"Management's          
    Discussion and Analysis of Financial Condition and Results of Operation," of our most recent Annual Report on Form
    10-K,                                                                                                             
    and our subsequent                                                                                                
    Quarterly Reports on Form                                                                                         
    10-Q,                                                                                                             
    some of which risks are                                                                                           
    beyond our control.                                                                                               

For more information about thesignificant risks that could affect the outcome 
of these forward-looking statements and our future financial condition, 
results of operations, liquidity and cash flows, you should read the sections 
titled "Risk Factors" in the documentsincorporated by reference in this 
prospectus supplement and the accompanying prospectus, together with "Risk 
Factors" in this prospectus supplement. In light of these risks, uncertainties 
and assumptions, the events described in theforward-looking statements 
included or incorporated by reference in this prospectus supplement and the 
accompanying prospectus might not occur or might occur to a different extent 
or at a different time than described. We qualify all of ourforward-looking 
statements by these cautionary statements. Forward-looking statements speak 
only as of the date they are made, and we expressly disclaim an obligation to 
publicly update or revise any forward-looking statements, whether as a 
resultof new information, future events or otherwise.

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                      WHERE YOU CAN FIND MORE INFORMATION                       
We are subject to the informational requirements of the Exchange Act, and, in 
accordance therewith, file annual, quarterly and currentreports, proxy 
statements and other information with the SEC. Our filings with the SEC, as 
well as additional information about us, are available to the public through 
our website at http://www.nisource.com and are made available as soon 
asreasonably practicable after such material is filed with or furnished to the 
SEC. The information on our website is not a part of this prospectus 
supplement or the accompanying prospectus. Our filings are also available to 
the public through theSEC's website at http://www.sec.gov.
                           INCORPORATION BY REFERENCE                           
The SEC allows us to "incorporate by reference" information into this 
prospectus supplement and the accompanying prospectus. Thismeans that we can 
disclose important business, financial and other information to you by 
referring you to another document that NiSource has filed separately with the 
SEC. The information incorporated by reference is considered to be part of 
thisprospectus supplement and the accompanying prospectus. Information that 
NiSource files with the SEC after the date of this prospectus supplement will 
automatically modify and supersede the information included or incorporated by 
reference in thisprospectus supplement and the accompanying prospectus to the 
extent that the subsequently filed information modifies or supersedes the 
existing information. We incorporate by reference:


 .  our Annual Report on                        
    Form                                        
    10-K                                        
    for the fiscal year ended December 31, 2023;



 .  our Quarterly Reports on Form
    10-Q                         
    for the quarters ended       
    March 31, 2024               
    and                          
    June 30, 2024                
    ;                            



 .  our Current Reports on Form
    8-K                        
    filed on                   
    January 2, 2024            
    (Items 1.01 and 9.01 only),
    January 26, 2024           
    ,                          
    February 9, 2024           
    ,                          
    February 20, 2024          
    ,                          
    February 22, 2024          
    ,                          
    March 14, 2024             
    ,                          
    March 15, 2024             
    ,                          
    March 18, 2024             
    ,                          
    March 19, 2024             
    ,                          
    May 13, 2024               
    ,                          
    May 16, 2024               
    and                        
    June 24, 2024              
    ; and                      



 .  any subsequent filings we make with the SEC under Section 13(a), 13(c), 14,      
    or 15(d) of the Exchange Act anduntil the offering of securities under this      
    prospectus supplement is completed or terminated, other than, in each case, those
    documents or the portions of those documents which are furnished and not filed.  

You may request a copy of any of these filings at no cost by writing to or 
calling us at the following address and telephone number: CorporateSecretary, 
NiSource Inc., 801 East 86th Avenue, Merrillville, Indiana 46410, telephone: 
(877)
647-5990.

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                                    SUMMARY                                     
This summary highlights certain information about our business and this 
offering. This is a summary of information contained elsewhere inthis 
prospectus supplement, the accompanying prospectus or incorporated by 
reference herein or therein and does not contain all of the information that 
you should consider before purchasing the Notes. We urge you to read carefully 
the entireprospectus supplement, the accompanying prospectus and the documents 
incorporated by reference in this prospectus supplement and the accompanying 
prospectus, including the historical financial statements and notes to those 
financial statementsincluded or incorporated by reference in this prospectus 
supplement and the accompanying prospectus. You should read carefully the 
"Risk Factors" section beginning on page S-
8
of thisprospectus supplement and the "Risk Factors" section in our most recent 
Annual Report on Form
10-K,
as may be modified by our subsequent periodic reports, for more information 
about important risksthat you should consider before investing in the Notes
.
                                 NISOURCE INC.                                  
Overview
. NiSource is an energy holding company whose primary subsidiaries are fully 
regulated natural gas and electricutility companies, serving approximately 3.8 
million customers in six states. We generate substantially all of our 
operating income through these rate-regulated businesses, which are summarized 
for financial reporting purposes into two primaryreportable segments:


 .  Columbia Operations; and



 .  NIPSCO Operations.

Beginning with the period ended March 31, 2024 our operations are now 
evaluated through two primary reportable segments, ColumbiaOperations and 
NIPSCO Operations rather than Gas Distribution Operations and Electric 
Operations. The reportable segments disclosed in the Annual Report on Form

10-K
for the year ended December 31, 2023,represent the prior reportable segments 
of Gas Distribution Operations and Electric Operations.
Business Strategy
. Our businessstrategy focuses on providing safe and reliable service through 
our core, rate-regulated, asset-based utilities, with the goal of adding value 
to all of our stakeholders. Our utilities continue to advance our core safety, 
infrastructure andenvironmental investment programs supported by complementary 
regulatory and customer initiatives across the six states in which we operate. 
Our goal is to develop strategies that benefit all stakeholders as we (i) 
focus on long-terminfrastructure investment and safety programs to better 
serve our customers, (ii) align our tariff structures with our cost structure, 
and (iii) address changing customer energy demand. These strategies focus on 
improving safety andreliability, enhancing customer experience, pursuing 
regulatory and legislative initiatives to increase accessibility for customers 
currently not on our gas and electric service, ensuring customer affordability 
and reducing emissions whilegenerating sustainable returns.
Columbia Operations
. Columbia Operations aggregates the results of the fully regulated and 
whollyowned subsidiaries of NiSource Gas Distribution Group, Inc. (a holding 
company that owns Columbia Gas of Kentucky, Inc., Columbia Gas of Maryland, 
Inc., Columbia Gas of Ohio, Inc., Columbia Gas of Pennsylvania, Inc., and 
Columbia Gas of Virginia,Inc.). Each Columbia distribution company is an 
operating segment which we aggregate to form the Columbia Operations 
reportable segment. Through our wholly-owned subsidiary NiSource Gas 
Distribution Group, Inc., we provide natural gas toapproximately 2.4 million 
residential, commercial and industrial customers in Ohio, Pennsylvania, 
Virginia, Kentucky, and Maryland. There were no significant disruptions to our 
system or facilities during 2023.

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NIPSCO Operations
. NIPSCO Operations aggregates the results of the subsidiaries ofNIPSCO 
Holdings I, and its majority-owned subsidiaries, including Northern Indiana 
Public Service Company LLC ("NIPSCO"), which has both fully regulated gas and 
electric operations in Northwest Indiana. We distribute natural gas 
toapproximately 0.9 million customers in northern Indiana through our 
subsidiary NIPSCO. We also generate, transmit and distribute electricity 
through our subsidiary NIPSCO to approximately 0.5 million customers in 20 
counties in thenorthern part of Indiana and also engage in wholesale electric 
and transmission transactions. We own and operate sources of generation as 
well as source power through power purchase agreements ("PPAs"). We continue 
to transition ourgeneration portfolio to primarily renewable sources. We 
currently have five owned projects in service: Rosewater Wind Generation LLC 
("Rosewater"), Indiana Crossroads Wind Generation LLC ("Indiana Crossroads 
Wind"), IndianaCrossroads Solar Generation LLC ("Indiana Crossroads Solar"), 
Dunns Bridge I Solar Generation LLC ("Dunn's Bridge I") and Cavalry Solar 
Generation Center ("Cavalry Solar"). Rosewater went into service in 
December2020 and Indiana Crossroads Wind went into service in December 2021. 
Indiana Crossroads Solar and Dunns Bridge I went into service in June 2023. 
Cavalry Solar went into service in May 2024. As of December 31, 2023, we had 
multiple PPAs thatcollectively provide 700 megawatts of capacity, with 
contracts expiring between 2024 and 2040. NIPSCO's transmission system, with 
voltages from 69,000 to 765,000 volts, consists of 2,920 circuit miles. NIPSCO 
is interconnected with eightneighboring electric utilities. We operate 66 
transmission and 250 distribution substations, and own approximately 311,000 
poles. Additionally, we own and operate reactive resources to supplement 
generation when necessary. Our facilities had nomaterial unplanned 
interruptions during 2023.
NIPSCO participates in the Midcontinent Independent System Operator 
("MISO")transmission service and wholesale energy market. NIPSCO has 
transferred functional control of its electric transmission assets to MISO, 
and transmission service for NIPSCO occurs under the MISO Open Access 
Transmission Tariff. NIPSCO generatingunits are dispatched by MISO which takes 
into account economics, reliability of the MISO system and unit availability. 
During the year ended December 31, 2023, NIPSCO generating units, inclusive of 
its build-transfer agreement projects, weredispatched to meet 49.5% of its 
overall system load, and the remainder of the overall system load was procured 
through PPAs and the MISO market.
NIPSCO Minority Interest Transaction
OnDecember 31, 2023, we issued a 19.9% indirect equity interest in NIPSCO to 
an affiliate of Blackstone Infrastructure Partners (such affiliate, "BIP") 
through the consummation of a transaction between NiSource, NIPSCO Holdings II 
(soleowner of NIPSCO) and BIP pursuant to a purchase and sale agreement 
entered into on June 17, 2023, that offered equity interests in NIPSCO 
Holdings II in exchange for capital contributions by the parties ("NIPSCO 
Minority InterestTransaction"). At closing, BIP acquired its 19.9% equity 
interest in NIPSCO Holdings II in exchange for a cash capital contribution of 
$2.16 billion.
On January 31, 2024, BIP transferred a 4.5% equity interest in NIPSCO Holdings 
II to BIP Blue Buyer VCOC L.L.C., a Delaware limitedliability company ("VCOC") 
and an affiliate of Blackstone Infrastructure Partners. Under NIPSCO Holdings 
II's Second Amended and Restated Limited Liability Company Operating 
Agreement, BIP and VCOC must vote their equity holdings inNIPSCO Holdings II 
as a single investor. Following consummation of the transactions described 
above, through their respective percentage ownership interests in NIPSCO 
Holdings II, NiSource owns an 80.1% controlling interest in NIPSCO, and BIP 
andVCOC own 15.4% and 4.5%
non-controlling
interests, respectively.
Our executive offices arelocated at 801 East 86th Avenue, Merrillville, 
Indiana 46410, telephone: (877)
647-5990.

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                                  THE OFFERING                                  
        The summary below describes the principal terms of this offering        
                                       .                                        


Issuer NiSource Inc., a Delaware corporation



Securities Offered $aggregate principal amount of%                            
                   Fixed-to-Fixed                                             
                   Reset Rate Junior Subordinated Notes due 2055 (the"Notes").



Maturity Date The Notes will mature on March, 2055 (the "final maturity date").



Interest Rate The Notes will bear interest (i) from and including September , 2024 (the "original issue date")     
              to, but excluding, March, 2035 (the "First Reset Date") at the rate of % perannum and (ii)           
              from and including the First Reset Date, during each Reset Period at a rate per annum equal to       
              the Five-year U.S. Treasury Rate as of the most recent Reset Interest Determination Date plus        
              a spreadof%, to be reset on each Reset Date. For the definitions of the terms "Reset Period,"        
              "Five-year U.S. Treasury Rate," "Reset Interest Determination Date" and "Reset Date" and             
              forother important information concerning the calculation of interest on the Notes, see "Supplemental
              Description of the Notes--Maturity, Interest and Payment" in this prospectus supplement.             



Interest Payment Dates Subject to our right to defer interest payments as described
                       under "Optional Interest Deferral" below, interest          
                       on the Notes will be payable semi-annually in arrears on    
                       MarchandSeptemberof each year, beginning on March, 2025.    



Optional Interest Deferral So long as no event of default with respect to the Notes has occurred and is continuing, 
                           we may, at our option, defer interest payments on the Notes,from time to time, for       
                           one or more deferral periods of up to 20 consecutive semi-annual Interest Payment Periods
                           each (each such deferral period, commencing on the interest payment date on which        
                           the first such deferred interest payment otherwisewould have been made, an "Optional     
                           Deferral Period"), except that no such Optional Deferral Period may extend beyond the    
                           final maturity date of the Notes or end on a day other than the day immediately preceding
                           an interest payment date. Inother words, we may declare at our discretion up to a        
                           ten-year                                                                                 
                           interest payment moratorium on the Notes and may choose to do that on one or more        
                           occasions. No interest will be due or payable on the Notesduring any such Optional       
                           Deferral Period unless we elect, at our option, to redeem Notes during such Optional     
                           Deferral Period, in which case accrued and unpaid interest to, but excluding,            
                           the redemption date will be due and payable on suchredemption date only on the           
                           Notes being redeemed, or unless the principal of and interest on the Notes shall         
                           have been declared due and payable as the result of an event of default with             
                           respect to the Notes, in which case all accrued and unpaidinterest on the Notes          


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 shall become due and payable. We may elect, at our option, to extend the length of any Optional          
 Deferral Period that is shorter than 20 consecutive semi-annual Interest Payment Periods (so longas the  
 entire Optional Deferral Period does not exceed 20 consecutive semi-annual Interest Payment Periods      
 or extend beyond the final maturity date of the Notes) and to shorten the length of any Optional         
 Deferral Period. We cannot begin a newOptional Deferral Period until we have paid all accrued and        
 unpaid interest on the Notes from any previous Optional Deferral Period. During any Optional Deferral    
 Period, interest on the Notes will continue to accrue at the then-applicable interestrate on the Notes   
 (as reset from time to time on any Reset Date occurring during such Optional Deferral Period in          
 accordance with the terms of the Notes). In addition, during any Optional Deferral Period, interest      
 on the deferred interest willaccrue at the then-applicable interest rate on the Notes (as reset from     
 time to time on any Reset Date occurring during such Optional Deferral Period in accordance with the     
 terms of the Notes), compounded semi-annually, to the extent permitted byapplicable law. For the         
 definition of the term "event of default," see "Supplemental Description of the Notes--Events of         
 Default" in this prospectus supplement, and for the definition of the term "Interest PaymentPeriod" and  
 other important information concerning our right to defer interest payments on the Notes, see            
 "Supplemental Description of the Notes--Option to Defer Interest Payments" in this prospectus supplement.



 If we defer payments of interest on the Notes, the Notes will be treated at that time, solely for purposes of the original  
 issue discount rules, as having been retired and reissued with original issue discount for U.S.federal income tax purposes. 
 This means that if you are subject to U.S. federal income taxation on a net income basis, you would be required to include  
 in your gross income for U.S. federal income tax purposes the deferred interest payments on yourNotes before you receive any
 cash, regardless of your regular method of accounting for U.S. federal income tax purposes. For more information concerning 
 the tax consequences you may have if payments of interest are deferred, see "RiskFactors-- Holders of the Notes subject to  
 U.S. federal income taxation may have to pay taxes on interest before they receive payments from us" and "Material U.S.     
 Federal Income Tax Considerations--Consequences to U.S.Holders--Exercise of Deferral Option" in this prospectus supplement. 



Certain Restrictions during an Optional Deferral Period During an Optional Deferral Period, we may not  
                                                        do any of the following (subject to exceptions):



 .  declare or pay any dividends or distributions on any Capital Stock (as defined in      
    "Supplemental Descriptionof the Notes--Option to Defer Interest Payments") of NiSource;



 .  redeem, purchase, acquire or make a liquidation payment with respect to any Capital Stock of NiSource;


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 .  pay any principal, interest or premium on, or repay, repurchase or redeem, any indebtedness
    of NiSource thatranks equally with or junior to the Notes in right of payment; or          



 .  make any payments with respect to any guarantees by NiSource of any indebtedness
    if such guarantees rank equallywith or junior to the Notes in right of payment. 



 For further important information, including information concerning the exceptions referred to above, see
 "Supplemental Description of the Notes--Option to Defer Interest Payments" in this prospectussupplement. 



Optional Redemption At our option, we may redeem some or all of the Notes, as applicable, before their maturity, as follows:



 .  in whole or in part (i) on any day in the period commencing on the date falling 
    90 days prior to the FirstReset Date and ending on and including the First      
    Reset Date and (ii) after the First Reset Date, on any interest payment date, at
    a redemption price in cash equal to 100% of the principal amount of the Notes   
    being redeemed, plus, subject to theterms described in the first paragraph under
    "Supplemental Description of the Notes--Redemption--Redemption Procedures;      
    Cancellation of Redemption" in this prospectus supplement, accrued and unpaid   
    interest on the Notes to beredeemed to, but excluding, the redemption date;     



 .  in whole but not in part, at any time following the occurrence and during      
    the continuance of a Tax Event (asdefined in "Supplemental Description of      
    the Notes-- Redemption--Redemption Following a Tax Event" in this prospectus   
    supplement) at a redemption price in cash equal to 100% of the principal       
    amount of the Notes, plus, subject to theterms described in the first paragraph
    under "Supplemental Description of the Notes--Redemption--Redemption           
    Procedures; Cancellation of Redemption" in this prospectus supplement, accrued 
    and unpaid interest on the Notes to, butexcluding, the redemption date; and    



 .  in whole but not in part, at any time following the occurrence and during the  
    continuance of a Rating AgencyEvent (as defined in "Supplemental Description   
    of the Notes--Redemption--Redemption Following a Rating Agency Event" in this  
    prospectus supplement) at a redemption price in cash equal to 102% of the      
    principal amount of the Notes,plus, subject to the terms described in the first
    paragraph under "Supplemental Description of the Notes--Redemption--Redemption 
    Procedures; Cancellation of Redemption" in this prospectus supplement, accrued 
    and unpaid interest onthe Notes to, but excluding, the redemption date.        


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Ranking The Notes will be our unsecured obligations and will rank junior and subordinate in right of payment to the prior     
        payment in full of our existing and future Senior Indebtedness, to the extent and in the manner set forth under the   
        caption"Supplemental Description of the Notes--Subordination" in this prospectus supplement. For the definition of the
        term "Senior Indebtedness," see "Supplemental Description of the Notes--Subordination" in thisprospectus supplement.  



 The Notes will rank equally in right                                                           
 of payment with our existing 6.950%                                                            
 Fixed-to-Fixed                                                                                 
 Reset Rate Junior Subordinated Notes due 2054 andwith any future unsecured indebtedness that   
 we may incur from time to time if the terms of such indebtedness provide that it ranks equally 
 with the Notes in right of payment. The Notes will be effectively subordinated to any future   
 securedindebtedness of NiSource to the extent of the value of the related collateral securing  
 such indebtedness. The Notes are NiSource's obligations exclusively, and not the obligations of
 any of NiSource's subsidiaries. Because NiSource is aholding company that derives substantially
 all of its income from its operating subsidiaries, the Notes will be structurally subordinated 
 to the indebtedness and other liabilities and any preferred stock of its subsidiaries.         



 For additional information, see "Risk Factors-- The Notes are obligations of NiSource and not  
 of NiSource's subsidiaries and will be subordinated to all other indebtedness of NiSource      
 (other than anyunsecured indebtedness NiSource has incurred or may incur in the future         
 that ranks junior to or pari passu with the Notes) and structurally subordinated to the        
 claims of NiSource's subsidiaries' creditors" and "SupplementalDescription of the              
 Notes--Ranking" in this prospectus supplement and "Risk Factors--Financial, Economic and Market
 Risks--We are a holding company and are dependent on cash generated by our subsidiaries        
 to meet our debtobligations and pay dividends on our stock" in our Annual Report on Form       
 10-K                                                                                           
 for the year ended December 31, 2023 incorporated by reference                                 
 in this prospectus supplement and the accompanyingprospectus.                                  



 As of June 30, 2024, NiSource Inc. had outstanding approximately $13.3   
 billion aggregate principal amount of Senior Indebtedness, and NiSource's
 operating subsidiaries had outstanding, in addition toother liabilities, 
 approximately $296.5 million aggregate amount of indebtedness.           



 The indenture governing the Notes does not limit the amount of debt that NiSource or any of its subsidiaries may incur.



Use of Proceeds The net proceeds to us from the sale of the Notes, after deducting the underwriting discount but  
                before deducting our other fees and expenses related to the offering, will be approximately $.    
                We intend to use the netproceeds from the sale of the Notes for general corporate purposes,       
                including to finance capital expenditures, for working capital and to repay existing indebtedness.


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 Affiliates of certain of the underwriters are lenders                      
 under our revolving credit facility. To the extent                         
 that we use the net proceeds from this offering to                         
 repay amounts we have borrowed or may borrow or                            
 re-borrow                                                                  
 in the future under our revolving credit facility, these lenders will      
 receive their pro rata portions of such proceeds. The term of our revolving
 credit facility expires on February 18, 2027. Inaddition, certain of the   
 underwriters are dealers under our commercial paper program. To the        
 extent we use the net proceeds from this offering to repay notes issued    
 under our commercial paper program and such sales agents hold such notes,  
 suchunderwriters will receive proceeds from this offering. See the "Use    
 of Proceeds" section of this prospectus supplement for more information.   



Conflicts of Interest Because some of the net proceeds of this offering may be used to    
                      repay amounts outstanding under our revolving credit facility       
                      or to repay notes issued under our commercial paper program that    
                      are held by certain underwriters, such underwriterswould be         
                      deemed to have a conflict of interest under Financial Industry      
                      Regulatory Authority, Inc. ("FINRA") Rule 5121 to the extent such   
                      sales agents or affiliates receive at least 5% of the net proceeds  
                      of the offering. Any underwriterdeemed to have a conflict of        
                      interest would be required to conduct the distribution of the       
                      Notes in accordance with FINRA Rule 5121. If the offering is        
                      conducted in accordance with FINRA Rule 5121, such underwriter would
                      not be permitted to confirma sale to an account over which it       
                      exercises discretionary authority without first receiving specific  
                      written approval from the account holder. See the "Use of Proceeds" 
                      and "Underwriting (Conflicts of Interest)--Conflicts ofInterest"    
                      sections of this prospectus supplement for more information.        



Additional Notes We may, without the consent of the holders of the Notes, create and issue        
                 additional Notes ranking equally with the Notes in all respects, including having
                 the same terms (except for the price to public, the issue date, the initial      
                 interestaccrual date and the first interest payment date, as applicable),        
                 so that such additional Notes would be consolidated and form a single series     
                 with the Notes, and would have the same terms as to status, redemption or        
                 otherwise as the Notes. See the"Supplemental Description of the Notes--Additional
                 Notes" section of this prospectus supplement for more information.               



Risk Factors See the "Risk Factors" section of this prospectus supplement for more information.


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                                  RISK FACTORS                                  
Investing in the Notes involves risks. You should read carefully the 
information contained elsewhere or incorporated by reference in thisprospectus 
supplement and the accompanying prospectus and should carefully consider the 
following risk factors, as well as the "Risk Factors" and "Forward-Looking 
Statements" sections in the accompanying prospectus and the"Risk Factors" and 
"Note regarding forward-looking statements" sections in our most recent Annual 
Report on Form
10-K
and our Quarterly Reports on Form
10-Q
for the quarter ended March
31, 2024 and June
30, 2024, which are incorporated by reference herein, and in any subsequent 
periodic reports that are incorporated byreference into this prospectus 
supplement and the accompanying prospectus. Each of the risks described could 
materially adversely affect our operations and financial results and the value 
of the Notes and your investment therein
.
The Notes are obligations of NiSource and not of NiSource's subsidiaries and 
will be subordinated to all other indebtedness of NiSource (other thanany 
unsecured indebtedness NiSource has incurred or may incur in the future that 
ranks junior to or pari passu with the Notes) and structurally subordinated to 
the claims of NiSource's subsidiaries' creditors.
Pursuant to the terms of the indenture, the Notes will be subordinated in 
right of payment to all of NiSource's existing and future SeniorIndebtedness. 
This means that, in the event of (a) NiSource's dissolution,
winding-up,
liquidation or reorganization, (b) NiSource's failure to pay any interest, 
principal or other monetaryamounts due on any of its Senior Indebtedness when 
due (and continuance of that default beyond any applicable grace period) or 
(c) acceleration of the maturity of any of NiSource's Senior Indebtedness as a 
result of a default, NiSourcewill not be permitted to make any payments on the 
Notes until, in the case of clause (a), all amounts due or to become due on 
all of its Senior Indebtedness have been paid in full, or, in the case of 
clauses (b) and (c), all amounts due on itsSenior Indebtedness have been paid 
in full. For additional information about the subordination of the Notes to 
our Senior Indebtedness, see "Supplemental Description of the Notes--Subordinati
on" in this prospectus supplement. AtJune 30, 2024, NiSource had approximately 
$13.3 billion aggregate principal amount of Senior Indebtedness outstanding. 
The Notes will be effectively subordinated to any future secured indebtedness 
of NiSource to the extent of the value ofthe related collateral securing such 
indebtedness.
The Notes are obligations of NiSource Inc., and not of any of NiSource'ssubsidia
ries. NiSource is a holding company and, accordingly, we conduct substantially 
all of our operations through our operating subsidiaries. As a result, our 
cash flow and our ability to service our debt, including the Notes, depend 
upon theearnings of our operating subsidiaries and on the distribution of 
earnings, loans or other payments by such subsidiaries to NiSource.
Ouroperating subsidiaries are separate and distinct legal entities and have no 
obligation to pay any amounts due on the Notes or to provide us with funds for 
our payment obligations, whether by dividends, distributions, loans or other 
payments. Inaddition, any payment of dividends, distributions, loans or 
advances by our subsidiaries to us could be subject to statutory or 
contractual restrictions. Payments to us by our operating subsidiaries will 
also be contingent upon suchsubsidiaries' earnings and business considerations. 
As of June 30, 2024, our operating subsidiaries had, in addition to other 
liabilities, approximately $296.5 million aggregate amount of indebtedness.

Our right to receive any assets of any of our subsidiaries upon their 
liquidation or reorganization, and therefore the rights of the holdersof the 
Notes to participate in those assets, will be structurally subordinated to the 
claims of that subsidiary's creditors. In addition, even if we were a creditor 
of any of our subsidiaries, our rights as a creditor would be subordinate 
toany security interest in the assets of our subsidiaries and any indebtedness 
of our subsidiaries senior to that held by us. There is no limitation on the 
ability of our subsidiaries to incur additional indebtedness to which the 
Notes will bestructurally subordinated. Additionally, if any of our 
subsidiaries were to issue preferred stock in the future, the Notes would 
similarly be structurally subordinated to the rights of the preferred 
stockholders.

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Due to the subordination of the Notes to the Senior Indebtedness of NiSource 
and theeffective subordination of the Notes to any secured indebtedness of 
NiSource, if NiSource's assets are distributed upon its dissolution,
winding-up,
liquidation or reorganization, holders of its SeniorIndebtedness and any 
secured indebtedness would likely recover more, ratably, than the holders of 
the Notes, and it is possible that no payments would be made to the holders of 
the Notes.
See "Risk Factors--Financial, Economic and Market Risks-- We are a holding 
company and are dependent on cash generated by oursubsidiaries to meet our 
debt obligations and pay dividends on our stock" in our Annual Report on Form

10-K
for the year ended December 31, 2023 incorporated by reference in this 
prospectussupplement and the accompanying prospectus.
The Notes will rank equally in right of payment with NiSource's existing 6.950%
Fixed-to-Fixed
Reset Rate Junior Subordinated Notes due 2054 and with any future unsecured 
indebtedness that NiSource may incur from time to time if the terms of 
suchindebtedness provide that it ranks equally with the Notes in right of 
payment. As of June 30, 2024, NiSource had outstanding $500 million aggregate 
principal amount of its 6.950%
Fixed-to-Fixed
Reset Rate Junior Subordinated Notes due 2054.
The indenture does not limit theamount of Senior Indebtedness or secured 
indebtedness that may be incurred by NiSource or the amount of other 
indebtedness or liabilities that may be incurred by NiSource or any of its 
subsidiaries. The incurrence by NiSource or its subsidiaries ofadditional 
indebtedness, including the incurrence of additional Senior Indebtedness or 
secured indebtedness by NiSource, may have adverse consequences for you as a 
holder of the Notes, including making it more difficult for NiSource to 
satisfy itsobligations with respect to the Notes, a loss of all or part of the 
trading value of the Notes and a risk that one or more of the credit ratings 
of the Notes could be lowered or withdrawn.
We can defer interest payments on the Notes for one or more Optional Deferral 
Periods of up to 20 consecutive semi-annual Interest Payment Periods each.This 
may affect the market price of the Notes.
So long as no event of default (as defined below under "Supplemental 
Descriptionof the Notes--Events of Default") with respect to the Notes has 
occurred and is continuing, we may, at our option, defer interest payments on 
the Notes, from time to time, for one or more Optional Deferral Periods of up 
to 20 consecutivesemi-annual Interest Payment Periods each, except that no 
such Optional Deferral Period may extend beyond the final maturity date of the 
Notes or end on a day other than the day immediately preceding an interest 
payment date. In other words, we maydeclare at our discretion up to a
ten-year
interest payment moratorium on the Notes and may choose to do that on one or 
more occasions. Moreover, following the end of any Optional Deferral Period, 
if allamounts then due on the Notes are paid, we could immediately start a new 
Optional Deferral Period of up to 20 consecutive semi- annual Interest Payment 
Periods. No interest will be paid or payable on the Notes during any Optional 
Deferral Periodunless we elect, at our option, to redeem Notes during such 
Optional Deferral Period, in which case accrued and unpaid interest to, but 
excluding, the redemption date will be due and payable on such redemption date 
only on the Notes being redeemed,or unless the principal of and interest on 
the Notes shall have been declared due and payable as a result of an event of 
default with respect to the Notes, in which case all accrued and unpaid 
interest on the Notes shall become due and payable.Instead, interest on the 
Notes would be deferred but would continue to accrue at the then-applicable 
interest rate on the Notes (as reset from time to time on any Reset Date 
occurring during such Optional Deferral Period in accordance with the termsof 
the Notes). In addition, during any Optional Deferral Period, interest on the 
deferred interest would accrue at the then-applicable interest rate on the 
Notes (as reset from time to time on any Reset Date occurring during such 
Optional DeferralPeriod in accordance with the terms of the Notes), compounded 
semi-annually, to the extent permitted by applicable law. If we exercise this 
interest deferral right, the Notes may trade at a price that does not reflect 
the value of accrued and unpaidinterest on the Notes or that is otherwise 
substantially less than the price at which the Notes would have traded if we 
had not exercised such deferral right. If we exercise this interest deferral 
right and you sell your Notes during an OptionalDeferral Period, you may not 
receive the same return on your investment as a holder that continues to hold 
its Notes until we pay the deferred interest following the

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end of such Optional Deferral Period. In addition, as a result of our right to 
defer interest payments, the market price of the Notes may be more volatile 
than other securities that do not havethese rights.
Holders of the Notes subject to U.S. federal income taxation may have to pay 
taxes on interest before they receive payments from us.
If we defer interest payments on the Notes, a holder of the Notes subject to 
U.S. federal income tax on a net income basis will berequired to accrue 
interest income for U.S. federal income tax purposes in respect of such 
holder's proportionate share of the accrued but unpaid interest on the Notes, 
even if such holder normally reports income when received. As a result, 
aholder will be required to include the accrued interest in such holder's 
gross income for U.S. federal income tax purposes even though such holder will 
not have received any cash. A holder's adjusted tax basis in a Note generally 
will beincreased by such amounts that it was required to include in gross 
income. In addition, unpaid interest accrued on the Notes during an Optional 
Deferral Period will be payable on the interest payment date immediately 
following the last day of suchOptional Deferral Period. If a holder sells its 
Notes on or before the record date for such interest payment date, then all of 
the interest accrued on such Notes during the Optional Deferral Period will be 
paid to the person who is the registeredowner of those Notes at the close of 
business on such record date, and the holder who sold those Notes will not 
receive from us any of the interest that accrued on those Notes during the 
Optional Deferral Period and that such holder reported asincome for tax 
purposes. Holders should consult with their tax advisors regarding the tax 
consequences of an investment in the Notes. For more information regarding the 
U.S. tax consequences of purchasing, owning and disposing of the Notes, 
see"Material U.S. Federal Income Tax Considerations."
Holders of the Notes will have limited rights of acceleration.
Holders of the Notes and the trustee under the indenture may accelerate 
payment of the principal and interest on the Notes only upon theoccurrence and 
continuation of certain events of default. Payment of principal and interest 
on the Notes may be accelerated upon the occurrence of an event of default 
under the indenture related to failure to pay interest within 60 days after it 
isdue, failure to pay principal or premium, if any, on the Notes within three 
business days of when due, and certain events of bankruptcy, insolvency, 
receivership or reorganization relating to NiSource (but not its subsidiaries). 
Holders of the Notesand the trustee will not have the right to accelerate 
payment of the principal or interest on the Notes upon the breach of any other 
covenant in the indenture. See "Supplemental Description of the Notes--Option 
to Defer InterestPayments," "Supplemental Description of the Notes--Events of 
Default" and "Supplemental Description of the Notes--Limitation on Remedies."
The terms of the indenture and the Notes do not provide protection against 
certain significant events that could adversely impact a holder'sinvestment in 
the Notes.
The terms of the indenture and the Notes do not restrict our ability to engage 
in, or to otherwise be a partyto, a variety of corporate transactions, 
circumstances and events that could have an adverse impact on an investment in 
the Notes. In particular, the indenture governing the Notes does not:


 .  permit the holders of the Notes to require us to repurchase the Notes
    in the event we undergo a change of controlor similar transaction;   



 .  require us to maintain any financial ratios or specific levels of net worth, revenues, income, cash flow orliquidity;



 .  limit our ability to incur unsecured indebtedness; or



 .  restrict our subsidiaries' ability to issue securities or otherwise 
    incur indebtedness or other obligationsthat would be senior to our  
    equity interests in our subsidiaries and therefore rank structurally
    senior to the Notes with respect to the assets of our subsidiaries. 


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There is no guarantee that an active trading market for the Notes will exist 
or that you will be able tosell your Notes.
The Notes will constitute a new issue of securities without an established 
trading market and a market may notdevelop for the Notes. As a result, you may 
not be able to sell your Notes. Accordingly, you may be required to bear the 
financial risk of an investment in the Notes for an indefinite period of time. 
In addition, the condition of the financialmarkets and prevailing interest 
rates have fluctuated in the past and are likely to fluctuate in the future, 
which could have an adverse effect on the market price of the Notes. We have 
been advised by the underwriters that they may make a market inthe Notes, but 
they have no obligation to do so and may discontinue market making at any time 
without providing notice. There can be no assurance that a market for the 
Notes will develop or, if it does develop, that it will continue. If an 
activepublic market does not develop or does not continue, the market price 
and liquidity of the Notes may be adversely affected.
Furthermore,we do not intend to apply for listing of the Notes on any 
securities exchange or seek their quotation on any automated dealer quotation 
system.
Iftrading markets do develop, changes in our ratings or the financial markets 
could adversely affect the market price of the Notes.
Themarket price of the Notes will depend on many factors, including, among 
others, the following:


 .  ratings on our debt securities assigned by rating agencies;



 .  the time remaining until maturity of the Notes;



 .  the prevailing interest rates being paid by other companies similar to us;



 .  our results of operations, cash flows, and financial position and prospects; and



 .  the condition of the financial markets.

The condition of the financial markets and prevailing interest rates have 
fluctuated in the past and are likely to fluctuate in the future,which could 
have an adverse effect on the market price of the Notes. In general, as market 
interest rates rise, debt securities bearing interest at fixed rates decline 
in value. Consequently, if market interest rates increase, the market value 
ofyour Notes may decline. We cannot predict the future level of market 
interest rates.
Rating agencies continually review the ratings theyhave assigned to companies 
and debt securities. Negative changes in the ratings assigned to us or our 
debt securities could have an adverse effect on the market price of the Notes.

Rating agencies may change their practices for rating the Notes, which change 
may affect the market price of the Notes. In addition, we may redeem theNotes 
if a rating agency makes certain changes in the equity credit methodology for 
securities such as the Notes.
The rating agenciesthat currently or may in the future publish a rating for 
NiSource, including Moody's Investors Service, Inc., S&P Global Ratings and 
Fitch Ratings, Inc., each of which is expected to initially publish a rating 
of the Notes, may, from timeto time in the future, change the way they analyze 
securities with features similar to the Notes. This may include, for example, 
changes to the relationship between ratings assigned to an issuer's senior 
securities and ratings assigned tosubordinated securities with features 
similar to the Notes. If any rating agencies change their practices for rating 
these types of securities in the future, and the ratings of the Notes are 
subsequently lowered, the trading price of the Notes couldbe negatively 
affected. In addition, we may redeem the Notes, at our option, in whole but 
not in part, if a rating agency makes certain changes in the equity credit 
methodology for securities such as the Notes. See "Supplemental Description 
ofthe Notes--Redemption--Redemption Following a Rating Agency Event."

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Our credit ratings may not reflect all risks of your investments in the Notes.
Our credit ratings are an assessment by rating agencies of our ability to pay 
our debts when due. Consequently, real or anticipated changes inour credit 
ratings will generally affect the market value of the Notes.
These credit ratings may not reflect the potential impact ofrisks relating to 
the structure or marketing of the Notes. Agency ratings are not a 
recommendation to buy, sell or hold any security, and may be revised or 
withdrawn at any time by the issuing organization. Each agency's rating should 
beevaluated independently of any other agency's rating.
We may choose to redeem the Notes prior to maturity.
We may at our option redeem the Notes in whole or in part at the times and the 
applicable redemption price described in this prospectussupplement. See 
"Supplemental Description of the Notes--Redemption." We may choose to redeem 
your Notes at a time when prevailing interest rates are lower than the 
interest rate paid on your Notes. If prevailing interest rates arelower at the 
time of redemption, you may not be able to reinvest the redemption proceeds in 
a comparable security at an effective interest rate as high as the interest 
rate of the Notes being redeemed.
Investors should not expect us to redeem the Notes on the first or any other 
date on which they are redeemable.
We may redeem some or all of the Notes, at our option, in whole or in part, 
(i) on any day in the period commencing on the date falling 90days prior to 
the First Reset Date and ending on and including the First Reset Date and (ii) 
after the First Reset Date, on any interest payment date, at a redemption 
price in cash equal to 100% of the principal amount of the Notes beingredeemed, 
plus, subject to the terms described in the first paragraph under 
"Supplemental Description of the Notes--Redemption--Redemption Procedures; 
Cancellation of Redemption" in this prospectus supplement, accrued and 
unpaidinterest on the Notes to be redeemed to, but excluding, the redemption 
date. In addition, the Notes may be redeemed by us at our option, in whole but 
not in part, following the occurrence and during the continuance of either a 
Tax Event or a RatingAgency Event (as those terms are defined under 
"Supplemental Description of the Notes--Redemption" in this prospectus 
supplement). Any decision we may make at any time to redeem the Notes before 
their final maturity date will dependupon, among other things, the strength of 
our balance sheet, our results of operations, our access to the capital 
markets, interest rates, our growth strategy, and general market conditions at 
such time. Accordingly, while we may decide to do so,investors should not 
expect us to redeem the Notes on the first or any other date on which they are 
redeemable.
The interest rate on the Notes willreset on the First Reset Date and each 
subsequent Reset Date and any interest payable after the First Reset Date may 
be based on a rate that is less than the initial or any other previous fixed 
interest rate.
The interest rate on the Notes from their original issue date to the First 
Reset Date will be% per annum. Beginningon the First Reset Date, the interest 
rate on the Notes for each Reset Period will equal the Five-year U.S. Treasury 
Rate as of the most recent Reset Interest Determination Date plus a spread 
of%, to be reset on eachReset Date. Therefore, the interest rate during any 
Interest Payment Period beginning on the First Reset Date or any subsequent 
Reset Date could be less than the fixed interest rate for the initial period 
from and including the original issue dateof the Notes to, but excluding, the 
First Reset Date or any previous Reset Period. We have no control over the 
factors that may affect U.S. Treasury rates, including geopolitical, economic, 
financial, political, regulatory, judicial or otherconditions or events.

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The historical Five-year U.S. Treasury Rates are not an indication of future 
Five-year U.S. TreasuryRates.
As noted above, the interest rate on the Notes for each Reset Period will be 
set by reference to the Five-year U.S. TreasuryRate as of the most recent 
Reset Interest Determination Date. In the past, U.S. Treasury rates have 
experienced significant fluctuations. You should note that historical levels, 
fluctuations and trends of U.S. Treasury rates are not necessarilyindicative 
of future levels. Any historical upward or downward trend in U.S. Treasury 
rates is not an indication that U.S. Treasury rates are more or less likely to 
increase or decrease at any time in the future and you should not take 
historicalU.S. Treasury rates as an indication of future U.S. Treasury Rates.


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                                USE OF PROCEEDS                                 
The net proceeds to us from the sale of the Notes, after deducting the 
underwriting discount but before deducting our other fees and expensesrelated 
to the offering, will be approximately $ .
We intend to use the net proceeds from the sale of theNotes for general 
corporate purposes, including to finance capital expenditures, for working 
capital and to repay existing indebtedness.
Affiliates of certain of the underwriters are lenders under our revolving 
credit facility. To the extent that we use the net proceeds fromthis offering 
to repay amounts we have borrowed or may borrow or
re-borrow
in the future under our revolving credit facility, these lenders will receive 
their pro rata portions of such proceeds. The term ofour revolving credit 
facility expires on February 18, 2027. In addition, certain of the 
underwriters are dealers under our commercial paper program. To the extent we 
use the net proceeds from this offering to repay notes issued under 
ourcommercial paper program and such sales agents hold such notes, such 
underwriters will receive proceeds from this offering. See the "Underwriting 
(Conflicts of Interest)--Conflicts of Interest" section of this prospectus 
supplement formore information.

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                     SUPPLEMENTAL DESCRIPTION OF THE NOTES                      
The following description summarizes certain terms applicable to the Notes and 
is not intended to be a complete recitation of all termsapplicable to the 
Notes. Please read the following information concerning the Notes in 
conjunction with the statements under "Description of the Debt Securities" in 
the accompanying prospectus, which the following information supplementsand, 
if there are any inconsistencies, supersedes. The Notes will be issued under 
the indenture, dated as of May
16, 2024 (the "base indenture"), between NiSource and The Bank of New York 
Mellon, as trustee (the"Trustee"), as supplemented by a second supplemental 
indenture, to be dated as of September




, 2024, between the Company and the Trustee, as it may be further supplemented 
fromtime to time (the base indenture, as so supplemented, the "indenture"). 
The form of base indenture is described in the accompanying prospectus and is 
filed as an exhibit to the registration statement under which the Notes are 
being offeredand sold
.
Maturity, Interest and Payment
The Notes will mature on March, 2055, subject to earlier redemption at our 
option as described under "--Redemption."
The Notes will bear interest (i) from and including September, 2024 (the 
"original issue date") to, but excluding,March, 2035 (the "First Reset Date") 
at the rate of% per annum and (ii) from and including the First Reset Date, 
during each Reset Period (as defined below) at a rate per annum equal to the 
Five-yearU.S. Treasury Rate (as defined below) as of the most recent Reset 
Interest Determination Date (as defined below) plus a spread of%, to be reset 
on each Reset Date (as defined below). Interest on the Notes will accrue 
fromthe original issue date and will be payable semi-annually in arrears on 
Marchand September(each, an "interest payment date") of each year, beginning 
on March, 2025, to theholders of record at the close of business on the record 
date for the applicable interest payment date, which will be (i) the business 
day immediately preceding such interest payment date so long as all of the 
Notes remain in book-entry onlyform or (ii) the 15th calendar day preceding 
such interest payment (whether or not a business day) if any of the Notes do 
not remain in book-entry only form (each, a "record date"), subject to our 
right to defer interest payments asdescribed below under "--Option to Defer 
Interest Payments." Interest on the Notes will be computed on the basis of a

360-day
year of twelve
30-day
months.
The applicable interest rate for each Reset Period will be determined by the 
calculation agent (as defined below), as of the applicableReset Interest 
Determination Date, in accordance with the following provisions:
"Five-year U.S. Treasury Rate" means, as of anyReset Interest Determination 
Date, (i) an interest rate (expressed as a decimal) determined to be the per 
annum rate equal to the arithmetic mean of the yields to maturity for U.S. 
Treasury securities adjusted to constant maturity with amaturity of five years 
from the next Reset Date and trading in the public securities markets, for the 
five consecutive business days immediately prior to the respective Reset 
Interest Determination Date as published (or, if fewer than fiveconsecutive 
business days are so published on the applicable Reset Interest Determination 
Date, for such number of business days published) in the most recent H.15, or 
(ii) if there is no such published U.S. Treasury security with a maturity 
offive years from the next Reset Date and trading in the public securities 
markets, then the rate will be determined by interpolation between the 
arithmetic mean of the yields to maturity for each of the two series of U.S. 
Treasury securities adjustedto constant maturity trading in the public 
securities markets, (A) one maturing as close as possible to, but earlier 
than, the Reset Date following the next succeeding Reset Interest 
Determination Date, and (B) the other maturing as closeas possible to, but 
later than, the Reset Date following the next succeeding Reset Interest 
Determination Date, in each case for the five consecutive business days 
immediately prior to the respective Reset Interest Determination Date as 
published inthe most recent H.15. If the Five-year U.S. Treasury Rate cannot 
be determined pursuant to the methods described in clause (i) or (ii) above, 
then the Five-year U.S. Treasury Rate will be the same interest rate 
determined for the prior ResetInterest Determination Date or, if the Five-year 
U.S. Treasury Rate cannot be so determined as of the Reset Interest 
Determination Date preceding the

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First Reset Date, then the interest rate applicable for the Reset Period 
beginning on and including theFirst Reset Date will be deemed to be% per 
annum, which is the same interest rate as in effect from and including the 
original issue date to, but excluding, the First Reset Date.
"H.15" means the statistical release designated as such, or any successor 
publication, published by the Board of Governors of theU.S. Federal Reserve 
System (or any successor thereto).
The "most recent H.15" means the H.15 published closest in time butprior to 
the close of business on the second business day prior to the applicable Reset 
Date.
"Reset Date" means the FirstReset Date and Marchof every fifth year after 2035.
"Reset Interest Determination Date" means, inrespect of any Reset Period, the 
day falling two business days prior to the first day of such Reset Period.
"Reset Period"means the period from and including the First Reset Date to, but 
excluding, the next following Reset Date and thereafter each period from and 
including a Reset Date to, but excluding, the next following Reset Date.
As used under this caption "Supplemental Description of the Notes," the term 
"business day" means, unless otherwiseexpressly stated, any day other than (i) 
a Saturday or Sunday or (ii) a day on which banks and trust companies in The 
City of New York are authorized or obligated by law, regulation or executive 
order to remain closed.
The term "calculation agent" means, at any time, the entity appointed by us 
and serving as such agent with respect to the Notes atsuch time.
Unless we have validly called all of the outstanding Notes for redemption on a 
redemption date occurring prior to the FirstReset Date, we will appoint a 
calculation agent for the Notes prior to the Reset Interest Determination Date 
immediately preceding the First Reset Date; provided that, if we have called 
all of the outstanding Notes for redemption on a redemptiondate occurring 
prior to the First Reset Date but we do not redeem all of the outstanding 
Notes on such redemption date, we will appoint a calculation agent for the 
Notes as promptly as practicable after such proposed redemption date. We 
mayterminate any such appointment and may appoint a successor calculation 
agent at any time and from time to time (so long as there shall always be a 
calculation agent in respect of the Notes when so required). We may appoint 
NiSource or an affiliateof NiSource as calculation agent.
As provided above, the applicable interest rate for each Reset Period will be 
determined by thecalculation agent as of the applicable Reset Interest 
Determination Date. Promptly upon such determination, the calculation agent 
will notify us of the interest rate for the Reset Period and we will promptly 
notify, or cause the calculation agent topromptly notify, the trustee and each 
paying agent of such interest rate. The calculation agent's determination of 
any interest rate, and its calculation of the amount of interest for any 
Interest Payment Period (as defined below under"--Option to Defer Interest 
Payments") beginning on or after the First Reset Date, will be on file at our 
principal offices, will be made available to any holder or beneficial owner of 
the Notes upon request and will be final andbinding in the absence of manifest 
error.
If an interest payment date, redemption date, or maturity date falls on a day 
that is not abusiness day, payment will be made on the next succeeding 
business day with the same force and effect as if made on such payment date.

No Listing
The Notes are a new issue of securities with no established trading market. We 
do not intend to apply for the listing or trading ofthe Notes on any 
securities exchange or trading facility or for inclusion of the Notes in any 
automated quotation system.

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Ranking
The Notes will be our unsecured obligations and will rank junior and 
subordinate in right of payment to the prior payment in full of ourexisting 
and future Senior Indebtedness (as defined below under "--Subordination"), to 
the extent and in the manner set forth under the caption "--Subordination" 
below. The Notes will rank equally in right of payment withour existing 6.950%

Fixed-to-Fixed
Reset Rate Junior Subordinated Notes due 2054 and with any future unsecured 
indebtedness that we may incur from time to time if theterms of such 
indebtedness provide that it ranks equally with the Notes in right of payment. 
At June 30, 2024, NiSource had approximately $13.3 billion aggregate principal 
amount of Senior Indebtedness outstanding and $500 millionaggregate principal 
amount of its 6.950%
Fixed-to-Fixed
Reset Rate Junior Subordinated Notes due 2054 outstanding. In addition, the 
Notes will be effectivelysubordinated to any future secured indebtedness of 
NiSource to the extent of the value of the related collateral securing such 
indebtedness.
The Notes are obligations of NiSource Inc., and not of any of NiSource's 
subsidiaries. NiSource is a holding company and, accordingly, weconduct 
substantially all of our operations through our operating subsidiaries. As a 
result, our cash flow and our ability to service our debt, including the 
Notes, depend upon the earnings of our operating subsidiaries and on the 
distribution ofearnings, loans or other payments by such subsidiaries to 
NiSource.
Our operating subsidiaries are separate and distinct legal entitiesand have no 
obligation to pay any amounts due on the Notes or to provide us with funds for 
our payment obligations, whether by dividends, distributions, loans or other 
payments. In addition, any payment of dividends, distributions, loans or 
advancesby our subsidiaries to us could be subject to statutory or contractual 
restrictions. Payments to us by our operating subsidiaries will also be 
contingent upon such subsidiaries' earnings and business considerations. As of 
June 30, 2024,our operating subsidiaries had, in addition to other 
liabilities, approximately $296.5 million aggregate amount of indebtedness.

Ourright to receive any assets of any of our subsidiaries upon their 
liquidation or reorganization, and therefore the rights of the holders of the 
Notes to participate in those assets, will be structurally subordinated to the 
claims of thatsubsidiary's creditors. In addition, even if we were a creditor 
of any of our subsidiaries, our rights as a creditor would be subordinate to 
any security interest in the assets of our subsidiaries and any indebtedness 
of our subsidiaries seniorto that held by us. There is no limitation on the 
ability of our subsidiaries to incur additional indebtedness to which the 
Notes will be structurally subordinated. Additionally, if any of our 
subsidiaries were to issue preferred stock in thefuture, the Notes would 
similarly be structurally subordinated to the rights of the preferred 
stockholders.
The indenture does not limitthe amount of Senior Indebtedness or secured 
indebtedness that may be incurred by NiSource or the amount of other 
indebtedness or liabilities that may be incurred by NiSource or any of its 
subsidiaries. The incurrence by NiSource or its subsidiariesof additional 
indebtedness, including the incurrence of additional Senior Indebtedness or 
secured indebtedness by NiSource, may have adverse consequences for you as a 
holder of the Notes, including making it more difficult for NiSource to 
satisfyits obligations with respect to the Notes, a loss of all or part of the 
trading value of your Notes and a risk that one or more of the credit ratings 
of the Notes could be lowered or withdrawn.
Agreement by Holders to Tax Treatment
Each holder (and beneficial owner) of the Notes will, by accepting any Notes 
(or a beneficial interest therein), be deemed to have agreed thatsuch holder 
(or beneficial owner) intends that the notes constitute indebtedness of 
NiSource, and will treat the Notes as indebtedness of NiSource, for U.S. 
federal, state and local tax purposes.

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Subordination
The Notes will be subordinated in right of payment to the prior payment in 
full of all our Senior Indebtedness. This means that upon:
(a) any payment by, or distribution of the assets of, NiSource upon its 
dissolution,
winding-up,
liquidation or reorganization, whether voluntary or involuntary or in 
bankruptcy, insolvency, receivership or other proceedings;
(b) afailure to pay any interest, principal or other monetary amounts due on 
any of NiSource's Senior Indebtedness when due and continuance of that default 
beyond any applicable grace period; or
(c) acceleration of the maturity of any Senior Indebtedness of NiSource as a 
result of a default;
the holders of all of NiSource's Senior Indebtedness will be entitled to 
receive:


 .  in the case of clause (a) above, payment of all amounts due or to become due on all Senior Indebtedness; or



 .  in the case of clauses (b) and (c) above, payment of all amounts due on all Senior Indebtedness,

before the holders of the Notes are entitled to receive any payment. So long 
as any of the events in clauses (a), (b), or(c) above has occurred and is 
continuing, any amounts payable or assets distributable on the Notes will 
instead be paid or distributed, as the case may be, directly to the holders of 
Senior Indebtedness to the extent necessary to pay, in thecase of clause (a) 
above, all amounts due or to become due upon all such Senior Indebtedness, or, 
in the case of clauses (b) and (c) above, all amounts due on all such Senior 
Indebtedness, and, if any such payment or distribution isreceived by the 
trustee under the indenture or the holders of any of the Notes before all 
Senior Indebtedness due and to become due, as applicable, is paid, such 
payment or distribution must be paid over to the holders of the unpaid 
SeniorIndebtedness. Subject to paying the Senior Indebtedness due and to 
become due in the case of clause (a) or the Senior Indebtedness due in the 
case of clauses (b) and (c), the holders of the Notes will be subrogated to 
the rights of theholders of the Senior Indebtedness to receive payments 
applicable to the Senior Indebtedness until the Notes are paid in full.
"SeniorIndebtedness" means, with respect to the Notes, (i) indebtedness of 
NiSource, whether outstanding at the date of the indenture or incurred, 
created or assumed after such date, (a) in respect of money borrowed by 
NiSource (includingany financial derivative, hedging or futures contract or 
similar instrument, to the extent any such item is primarily a financing 
transaction) and (b) evidenced by debentures, bonds, notes, credit or loan 
agreements or other similar instrumentsor agreements issued or entered into by 
NiSource; (ii) all finance lease obligations of NiSource; (iii) all 
obligations of NiSource issued or assumed as the deferred purchase price of 
property, all conditional sale obligations of NiSourceand all obligations of 
NiSource under any title retention agreement (but excluding, for the avoidance 
of doubt, trade accounts payable arising in the ordinary course of business 
and long-term purchase obligations); (iv) all obligations of NiSourcefor the 
reimbursement of any letter of credit, banker's acceptance, security purchase 
facility or similar credit transaction; and (v) all obligations of the type 
referred to in clauses (i) through (iv) above of other persons for thepayment 
of which NiSource is responsible or liable as obligor, guarantor or otherwise, 
except for any obligations, instruments or agreements of the type referred to 
in any of clauses (i) through (v) above that, by the terms of the 
instrumentsor agreements creating or evidencing the same or pursuant to which 
the same is outstanding, are subordinated or equal in right of payment to the 
Notes.
For the avoidance of doubt, Senior Indebtedness shall not include the Other 
Junior Subordinated Notes. "Other Junior SubordinatedNotes" means NiSource's 
existing 6.950%
Fixed-to-Fixed
Reset Rate Junior Subordinated Notes due 2054, which constitute a separate 
series of NiSource'ssubordinated indebtedness under the base indenture and 
were originally issued on May 16, 2024, together with any additional unsecured 
indebtedness of the same series which may in the future be issued under the 
base indenture upon any
re-opening
of such series.

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Due to the subordination of the Notes, if assets of NiSource are distributed 
upon itsdissolution,
winding-up,
liquidation or reorganization, holders of its Senior Indebtedness and other 
indebtedness and obligations that are not equal or junior to the Notes in 
right of payment will likelyrecover more, ratably, than holders of the Notes, 
and it is possible that no payments will be made to the holders of the Notes.
The Notesand the indenture do not limit our ability to incur Senior 
Indebtedness or our or any of our subsidiaries' ability to incur other secured 
and unsecured indebtedness or liabilities or to issue preferred equity.
Option to Defer Interest Payments
Solong as no event of default (as defined below under "--Events of Default") 
with respect to the Notes has occurred and is continuing, we may, at our 
option, defer interest payments on the Notes, from time to time, for one or 
moredeferral periods of up to 20 consecutive Interest Payment Periods (as 
defined below) each (each such deferral period, commencing on the interest 
payment date on which the first such deferred interest payment otherwise would 
have been made, an"Optional Deferral Period"), except that no such Optional 
Deferral Period may extend beyond the final maturity date of the Notes or end 
on a day other than the day immediately preceding an interest payment date. 
During any OptionalDeferral Period, interest on the Notes will continue to 
accrue at the then-applicable interest rate on the Notes (as reset from time 
to time on any Reset Date occurring during such Optional Deferral Period in 
accordance with the terms of the Notes).In addition, during any Optional 
Deferral Period, interest on the deferred interest ("compound interest") will 
accrue at the then-applicable interest rate on the Notes (as reset from time 
to time on any Reset Date occurring during suchOptional Deferral Period in 
accordance with the terms of the Notes), compounded semi-annually, to the 
extent permitted by applicable law. No interest will be due or payable on the 
Notes during an Optional Deferral Period, except upon a redemption ofany Notes 
on any redemption date during such Optional Deferral Period (in which case all 
accrued and unpaid interest (including, to the extent permitted by applicable 
law, any compound interest) on the Notes to be redeemed to, but excluding, 
suchredemption date will be due and payable on such redemption date), or 
unless the principal of and interest on the Notes shall have been declared due 
and payable as the result of an event of default with respect to the Notes (in 
which case all accruedand unpaid interest, including, to the extent permitted 
by applicable law, any compound interest, on the Notes shall become due and 
payable). All references in the Notes and, insofar as relates to the Notes, 
the indenture, to "interest" onthe Notes shall be deemed to include any such 
deferred interest and, to the extent permitted by applicable law, any compound 
interest, unless otherwise expressly stated or the context otherwise requires.
Before the end of any Optional Deferral Period that is shorter than 20 
consecutive Interest Payment Periods, we may elect, at our option, toextend 
such Optional Deferral Period, so long as the entire Optional Deferral Period 
does not exceed 20 consecutive Interest Payment Periods or extend beyond the 
final maturity date of the Notes. We may also elect, at our option, to shorten 
thelength of any Optional Deferral Period. No Optional Deferral Period 
(including as extended or shortened) may end on a day other than the day 
immediately preceding an interest payment date. At the end of any Optional 
Deferral Period, if all amountsthen due on the Notes, including all accrued 
and unpaid interest thereon (including, without limitation and to the extent 
permitted by applicable law, any compound interest), are paid, we may elect to 
begin a new Optional Deferral Period; provided,however, that, without 
limitation of the foregoing, we may not begin a new Optional Deferral Period 
unless we have paid all accrued and unpaid interest on the Notes (including, 
without limitation and to the extent permitted by applicable law, anycompound 
interest) from any previous Optional Deferral Periods.
During any Optional Deferral Period, we will not do any of the following(subject
 to the exceptions set forth in the next succeeding paragraph):


 .  declare or pay any dividends or distributions on any Capital Stock (as defined below) of NiSource;



 .  redeem, purchase, acquire or make a liquidation payment with respect to any Capital Stock of NiSource;


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 .  pay any principal, interest or premium on, or repay, repurchase or redeem, any indebtedness
    of NiSource thatranks equally with or junior to the Notes in right of payment; or          



 .  make any payments with respect to any guarantees by NiSource of any indebtedness
    if such guarantees rank equallywith or junior to the Notes in right of payment. 

However, during an Optional Deferral Period, we may (a) declareand pay 
dividends or distributions payable solely in shares of our common stock 
(together, for the avoidance of doubt, with cash in lieu of any fractional 
share) or options, warrants or rights to subscribe for or purchase shares of 
our common stock,(b) declare and pay any dividend in connection with the 
implementation of a plan (a "Rights Plan") providing for the issuance by us to 
all holders of our common stock of rights entitling them to subscribe for or 
purchase common stockor any class or series of our preferred stock, which 
rights (1) are deemed to be transferred with such common stock, (2) are not 
exercisable until the occurrence of a specified event or events and (3) are 
also issued in respect offuture issuances of our common stock, (c) issue any 
of shares of our Capital Stock under any Rights Plan or redeem or repurchase 
any rights distributed pursuant to a Rights Plan, (d) reclassify our Capital 
Stock or exchange or convert oneclass or series of our Capital Stock for 
another class or series of our Capital Stock, (e) purchase fractional 
interests in shares of our Capital Stock pursuant to the conversion or 
exchange provisions of such Capital Stock or the securitybeing converted or 
exchanged, (f) purchase, acquire or withhold shares of our common stock 
related to the issuance of our common stock or rights under any dividend 
reinvestment plan or related to any of our benefit plans for our directors,offic
ers, employees, consultants or advisors, including any employment contract, 
and (g) for the avoidance of doubt, convert convertible Capital Stock of 
NiSource into other Capital Stock of NiSource in accordance with the terms of 
suchconvertible Capital Stock (together, for the avoidance of doubt, with cash 
in lieu of any fractional share).
We will give the holders ofthe Notes and the trustee notice of our election 
of, or any shortening or extension of, an Optional Deferral Period at least 10 
business days prior to the earlier of (1) the next succeeding interest payment 
date or (2) the date upon whichwe are required to give notice to any 
applicable self-regulatory organization or to holders of the Notes of the next 
succeeding interest payment date or the record date therefor. The record date 
for the payment of deferred interest and, to theextent permitted by applicable 
law, any compound interest payable on the interest payment date immediately 
following the last day of an Optional Deferral Period will be the regular 
record date with respect to such interest payment date.
"Capital Stock" means (i) in the case of a corporation or a company, corporate 
stock or shares; (ii) in the case of anassociation or business entity, any and 
all shares, interests, participations, rights or other equivalents (however 
designated) of corporate stock; (iii) in the case of a partnership or limited 
liability company, partnership or membershipinterests (whether general or 
limited); and (iv) any other interest or participation that confers on a 
person the right to receive a share of the profits and losses of, or 
distributions of assets of, the issuing person.
"Interest Payment Period" means the semi-annual period from and including an 
interest payment date to but excluding the nextsucceeding interest payment 
date, except for the first Interest Payment Period which shall be the period 
from and including the original issue date to but excluding March, 2025.
Redemption
Optional Redemption
We may redeem some or all of the Notes, at our option, in whole or in part (i) 
on any day in the period commencing on the date falling 90days prior to the 
First Reset Date and ending on and including the First Reset Date and (ii) 
after the First Reset Date, on any interest payment date, at a redemption 
price in cash equal to 100% of the principal amount of the Notes beingredeemed, 
plus, subject to the terms described in the first paragraph under "-- 
Redemption Procedures; Cancellation of Redemption" below, accrued and unpaid 
interest on the Notes to be redeemed to, but excluding, the redemption date.

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Redemption Following a Tax Event
We may at our option redeem the Notes, in whole but not in part, at any time 
following the occurrence and during the continuance of a Tax Event(as defined 
below) at a redemption price in cash equal to 100% of the principal amount of 
the Notes, plus, subject to the terms described in the first paragraph under 
"--Redemption Procedures; Cancellation of Redemption" below, accruedand unpaid 
interest on the Notes to, but excluding, the redemption date.
A "Tax Event" means that we have received an opinion ofcounsel experienced in 
such matters to the effect that, as a result of:


 .  any amendment to, clarification of, or change, including any announced prospective change, in the laws ortreaties of the  
    United States or any of its political subdivisions or taxing authorities, or any regulations under those laws or treaties;



 .  an administrative action, which means any judicial decision or any official   
    administrative pronouncement, ruling,regulatory procedure, notice or          
    announcement, including any notice or announcement of intent to issue or adopt
    any administrative pronouncement, ruling, regulatory procedure or regulation; 



 .  any amendment to, clarification of, or change in the official position
    or the interpretation of anyadministrative action or judicial         
    decision or any interpretation or pronouncement that provides for a   
    position with respect to an administrative action or judicial decision
    that differs from the previously generally accepted position, in      
    each caseby any legislative body, court, governmental authority or    
    regulatory body, regardless of the time or manner in which that       
    amendment, clarification or change is introduced or made known; or    



 .  a threatened challenge asserted in writing in connection with a tax audit     
    of us or any of our subsidiaries, or apublicly-known threatened challenge     
    asserted in writing against any other taxpayer that has raised capital through
    the issuance of securities that are substantially similar to the Notes,       

which amendment, clarification or change is effective or the administrative 
action is taken or judicial decision, interpretation or pronouncement is 
issued orthreatened challenge is asserted or becomes publicly-known after the 
date of this prospectus supplement, there is more than an insubstantial risk 
that interest payable by us on the Notes is not deductible, or within 90 days 
would not be deductible,in whole or in part, by us for U.S. federal income tax 
purposes.
Redemption Following a Rating Agency Event
We may at our option redeem the Notes, in whole but not in part, at any time 
following the occurrence and during the continuance of a RatingAgency Event 
(as defined below) at a redemption price in cash equal to 102% of the 
principal amount of the Notes, plus, subject to the terms described in the 
first paragraph under "--Redemption Procedures; Cancellation of Redemption"below
, accrued and unpaid interest on the Notes to, but excluding, the redemption 
date.
"Rating Agency Event" means, as of anydate, a change, clarification or 
amendment in the methodology published by any nationally recognized 
statistical rating organization within the meaning of Section 3(a)(62) of the 
Exchange Act, as amended (or any successor provision thereto),that then 
publishes a rating for NiSource (together with any successor thereto, a 
"rating agency") in assigning equity credit to securities such as the Notes, 
(a) as such methodology was in effect on the date of this prospectussupplement, 
in the case of any rating agency that published a rating for NiSource as of 
the date of this prospectus supplement, or (b) as such methodology was in 
effect on the date such rating agency first published a rating for NiSource, 
inthe case of any rating agency that first publishes a rating for NiSource 
after the date of this prospectus supplement, (in the case of either clause 
(a) or (b), the "current methodology"), that results in (i) any shortening 
ofthe length of time for which a particular level of equity credit pertaining 
to the Notes by such rating agency would have been in effect had the

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current methodology not been changed or (ii) a lower equity credit (including 
up to a lesser amount) being assigned by such rating agency to the Notes as of 
the date of such change,clarification or amendment than the equity credit that 
would have been assigned to the Notes by such rating agency had the current 
methodology not been changed.
Redemption Procedures; Cancellation of Redemption
Notwithstanding any statement under this caption "--Redemption" to the 
contrary, installments of interest on the Notes that aredue and payable on any 
interest payment date falling on or prior to a redemption date for the Notes 
will be payable on that interest payment date to the registered holders 
thereof as of the close of business on the relevant record date according 
tothe terms of the Notes and the indenture, except that, if the redemption 
date for any Notes falls on any day during an Optional Deferral Period (as 
defined below under "--Option to Defer Interest Payments"), accrued and unpaid 
interest(including, to the extent permitted by applicable law, any compound 
interest (as defined below under "--Option to Defer Interest Payments")) on 
such Notes will be paid on such redemption date to the persons entitled to 
receive theredemption price of such Notes. For the avoidance of doubt, the 
interest payment date falling immediately after the last day of an Optional 
Deferral Period shall not be deemed to fall on a day during such Optional 
Deferral Period.
Notice of any redemption will be mailed or electronically delivered (or 
otherwise transmitted in accordance with the depositary'sprocedures) at least 
10 days but not more than 60 days before the redemption date to each holder of 
Notes to be redeemed. Once notice of redemption is mailed, the Notes called 
for redemption will become due and payable on the redemption date at 
theapplicable redemption price, plus, subject to the terms described in the 
immediately preceding paragraph, accrued and unpaid interest to, but 
excluding, the redemption date, and will be paid upon surrender thereof for 
redemption, unless (a) thenotice of redemption provides that such redemption 
shall be subject to the condition described in the next succeeding paragraph 
and (b) such redemption shall have been canceled in accordance with the 
provisions of the next succeeding paragraphbecause such condition shall not 
have been satisfied. If only part of a note is redeemed, the trustee will 
issue in the name of the registered holder of the note and deliver to such 
holder a new note in a principal amount equal to the unredeemedportion of the 
principal of the note surrendered for redemption. If we elect to redeem all or 
a portion of the Notes, then, unless otherwise provided in such notice of 
redemption as described in the next succeeding paragraph, the redemption will 
notbe conditional upon receipt by the paying agent or the trustee of monies 
sufficient to pay the redemption price.
If, at the time a noticeof redemption is given, (i) we have not effected 
satisfaction and discharge of the Notes as described under "Description of the 
Debt Securities--Satisfaction and Discharge" in the accompanying prospectus 
and (ii) such noticeof redemption is not being given in connection with or in 
order to effect satisfaction and discharge of the Notes, then, if the notice 
of redemption so provides and at our option, the redemption may be subject to 
the condition that the trustee shallhave received, on or before the applicable 
redemption date, monies in an amount sufficient to pay the redemption price 
and accrued and unpaid interest on the Notes called for redemption to, but 
excluding, the redemption date. If monies in suchamount are not received by 
the trustee on or before such redemption date, such notice of redemption shall 
be automatically canceled and of no force or effect, such proposed redemption 
shall be automatically canceled and we shall not be required toredeem the 
Notes called for redemption on such redemption date. In the event that a 
redemption is canceled, we will, not later than the business day immediately 
following the proposed redemption date, deliver, or cause to be delivered, 
notice ofsuch cancellation to the registered holders of the Notes called for 
redemption (which notice will also indicate that any Notes or portions thereof 
surrendered for redemption shall be returned to the applicable holders), and 
we will direct thetrustee to, and the trustee will, promptly return any Notes 
or portions thereof that have been surrendered for redemption to the 
applicable holders.
Unless we default in payment of the redemption price or the proposed 
redemption is canceled in accordance with the provisions set forth in 
theimmediately preceding paragraph, on and after the redemption date interest 
will cease to accrue on the Notes or portions thereof called for redemption.

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Our actions and determinations in determining the redemption price shall be 
conclusive andbinding for all purposes, absent manifest error.
The trustee shall have no duty to determine, or verify the calculation of, 
theredemption price.
If we redeem less than all of the Notes on any redemption date, the trustee 
will select the Notes to be redeemed by lotor, in the case of Notes in 
book-entry form represented by one or more global notes, by such other 
customary method prescribed by the depositary, which may be made on a pro rata 
pass-through distribution of principal basis.
Unless we default in payment of the redemption price, on and after the 
redemption date interest will cease to accrue on the Notes or portionsthereof 
called for redemption.
Events of Default
An "event of default" occurs with respect to the Notes if:


 (a) we do not pay any interest on any Note when it becomes due and payable and such default        
     continues for 60 days(whether or not such payment is prohibited by the subordination provisions
     applicable to the Notes), except as the result of a deferral of interest payments in           
     accordance with the provisions discussed above under "--Option to Defer InterestPayments";     



 (b) we do not pay any principal of or premium, if any, on any Note when it becomes due and payable (whether or notsuch payment
     is prohibited by the subordination provisions applicable to the Notes) and the default continues for three business days; 



 (c) we remain in breach of any other covenant or warranty (excluding        
     covenants and warranties solely applicable toone or more other series of
     subordinated debt securities issued under the indenture) in the         
     indenture or the Notes for 90 days after there has been given to us, by 
     registered or certified mail, a written notice of default specifying    
     such default orbreach and requiring remedy of the default or breach;    
     the notice must be sent by either the trustee or registered holders     
     of at least 33% of the principal amount of the outstanding Notes; or    



 (d) NiSource files for bankruptcy or other specified events of bankruptcy,   
     insolvency, receivership orreorganization occur with respect to NiSource.

However, as discussed below under "--Limitation ofRemedies," neither the 
trustee nor the holders of the Notes will be entitled to declare the Notes to 
be due and payable immediately upon the occurrence of an event of default 
described in clause (c) above.
No event of default with respect to the Notes will necessarily constitute an 
event of default with respect to the subordinated debt securitiesof any other 
series that may be issued under the indenture, and no event of default with 
respect to any such other series of subordinated debt securities that may be 
issued under the indenture will necessarily constitute an event of default 
withrespect to the Notes.
The description set forth under this caption "--Events of Default" supersedes 
and replaces, insofaras it relates to the Notes, the description in the first 
paragraph through "(See Section 501.)" set forth under the caption 
"Description of the Debt Securities--Events of Default" in the accompanying 
prospectus.
Limitation on Remedies
If an event ofdefault, other than an event of default described in clause (c) 
under "--Events of Default" above, occurs and is continuing, then either the 
trustee or the registered holders of at least 33% in principal amount of the 
outstandingNotes may declare the principal amount of all of the Notes, 
together with accrued and unpaid interest thereon (including, without 
limitation, any deferred interest and, to the extent permitted by

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applicable law, any compound interest), to be due and payable immediately, and 
upon such declaration the principal of and accrued and unpaid interest on the 
Notes shall become immediately due andpayable (notwithstanding any deferral of 
interest payments in accordance with the provisions discussed above under 
"--Option to Defer Interest Payments").
However, if an event of default described in clause (c) under "--Events of 
Default" above occurs and is continuing, neitherthe trustee nor the registered 
holders of the Notes will be entitled to declare the principal of the Notes, 
or accrued or unpaid interest thereon, to be due and payable immediately. See 
"Risk Factors--Holders of the notes will have limitedrights of acceleration" 
above. However, they may exercise the other rights and remedies available 
under the indenture upon the occurrence of such an event of default.
The description set forth under this caption "--Limitation on Remedies" 
supersedes and replaces, insofar as it relates to theNotes, the description 
set forth in the second paragraph through "(See Section 502.)" under the 
caption "Description of the Debt Securities--Events of Default" in the 
accompanying prospectus.
No Limitation on Liens
The Notes willnot be subject to the lien limitation described under the 
caption "Description of the Debt Securities--Limitation on Liens" in the 
accompanying prospectus.
Additional Notes
We may, without theconsent of the holders of the Notes, create and issue 
additional Notes ranking equally with the Notes in all respects, including 
having the same terms (except for the price to public, the issue date, the 
initial interest accrual date and the firstinterest payment date, as 
applicable) as the Notes, so that such additional Notes would be consolidated 
and form a single series with the Notes, and would have the same terms as to 
status, redemption or otherwise as the Notes. Such additional Noteswill have 
the same CUSIP number as the Notes offered hereby, provided that such 
additional Notes must be part of the same issue as the Notes offered hereby 
for U.S. federal income tax purposes or, if they are not part of the same 
issue for suchpurposes, such additional Notes must be issued with a separate 
CUSIP number. No additional Notes may be issued if an Event of Default under 
the indenture has occurred and is continuing with respect to the Notes.
Forms and Denominations
The Notes willbe issued as one or more global securities in the name of a 
nominee of DTC and will be available only in book-entry form. See "-- 
Book-Entry Only Issuance--The Depository Trust Company." The Notes will be 
issued in denominations of$2,000 and integral multiples of $1,000 in excess 
thereof.
Book-Entry Only Issuance--The Depository Trust Company
DTC will act as the initial securities depositary for the Notes. The Notes 
will be issued only as fully registered securities registered in thename of 
Cede & Co., DTC's nominee, or such other name as may be requested by an 
authorized representative of DTC. The Notes initially will be represented by 
one or more fully registered global securities, representing in the 
aggregatethe total principal amount of the Notes, and will be deposited with 
the trustee on behalf of DTC. Investors may hold interests in the Notes 
through DTC if they are participants in DTC or indirectly through 
organizations that are participants in DTC,including Euroclear or Clearstream.

DTC is a limited-purpose trust company organized under the New York Banking 
Law, a "bankingorganization" within the meaning of the New York Banking Law, a 
member of the Federal Reserve System, a "clearing corporation" within the 
meaning of the New York Uniform Commercial Code and a "clearing agency" 
registeredunder the provisions of Section 17A of the Exchange Act. DTC holds 
and provides asset servicing for

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U.S. and
non-U.S.
equity issues, corporate and municipal debt issues and money market 
instruments that DTC's participants ("DirectParticipants") deposit with DTC. 
DTC also facilitates the post-trade settlement among Direct Participants of 
sales and other securities transactions in deposited securities, through 
electronic computerized book-entry transfers and pledgesbetween Direct 
Participants' accounts. This eliminates the need for physical movement of 
securities certificates. Direct Participants include both U.S. and
non-U.S.
securities brokers and dealers, banks,trust companies, clearing corporations 
and certain other organizations. Access to the DTC system is also available to 
others such as U.S. and
non-U.S.
securities brokers and dealers, banks, trust companies andclearing 
corporations that clear through or maintain a custodial relationship with a 
Direct Participant, either directly or indirectly ("Indirect Participants"). 
The DTC rules applicable to its Direct Participants and Indirect Participantsare
 on file with the SEC.
Purchases of Notes under the DTC system must be made by or through Direct 
Participants, which will receive acredit for the Notes on DTC's records. The 
ownership interest of each actual purchaser of Notes ("Beneficial Owner") is 
in turn to be recorded on the Direct Participants' and Indirect Participants' 
records. Beneficial Ownerswill not receive written confirmation from DTC of 
their purchases. Beneficial Owners, however, are expected to receive written 
confirmations providing details of the transactions, as well as periodic 
statements of their holdings, from the DirectParticipants or Indirect 
Participants through which the Beneficial Owners purchased Notes. Transfers of 
ownership interests in the Notes are to be accomplished by entries made on the 
books of Direct Participants and Indirect Participants acting onbehalf of 
Beneficial Owners. Beneficial Owners will not receive certificates 
representing their ownership interests in Notes, except in the event that use 
of the book-entry system for the Notes is discontinued.
To facilitate subsequent transfers, all Notes deposited by Direct Participants 
with DTC are registered in the name of DTC's nominee,Cede & Co., or such other 
name as may be requested by an authorized representative of DTC. The deposit 
of Notes with DTC and their registration in the name of Cede & Co. or such 
other DTC nominee do not effect any changes inbeneficial ownership. DTC has no 
knowledge of the actual Beneficial Owners of the Notes. DTC's records reflect 
only the identity of the Direct Participants to whose accounts such Notes are 
credited, which may or may not be the BeneficialOwners. The Direct 
Participants and Indirect Participants will remain responsible for keeping 
account of their holdings on behalf of their customers.
Conveyance of notices and other communications by DTC to Direct Participants, 
by Direct Participants to Indirect Participants, and by DirectParticipants and 
Indirect Participants to Beneficial Owners will be governed by arrangements 
among them, subject to any statutory or regulatory requirements as may be in 
effect from time to time.
Redemption notices will be sent to DTC. If less than all of the Notes are 
being redeemed, DTC's practice is to determine by lot theamount of interest of 
each Direct Participant in such Notes to be redeemed unless the governing 
documents clearly indicate that a partial redemption processed through DTC 
will be treated by DTC, in accordance with its rules and procedures, as a"pro 
rata pass-through distribution of principal."
Although voting with respect to the Notes is limited, in those cases where 
avote is required, neither DTC nor Cede & Co. (nor any other DTC nominee) will 
consent or vote with respect to the Notes unless authorized by a Direct 
Participant in accordance with DTC's procedures. Under its usual procedures, 
DTCmails an omnibus proxy to NiSource as soon as possible after the record 
date. The omnibus proxy assigns Cede & Co.'s consenting or voting rights to 
those Direct Participants to whose accounts the Notes are credited on the 
record date(identified in a listing attached to the omnibus proxy).
Payments on the Notes will be made to Cede & Co., or such other nomineeas may 
be requested by an authorized representative of DTC. DTC's practice is to 
credit Direct Participants' accounts upon DTC's receipt of funds and 
corresponding detail information on the relevant payment date in accordance 
withtheir respective holdings shown on DTC's records. Payments by Direct 
Participants or Indirect Participants to Beneficial Owners will be governed by 
standing instructions and customary practices, as is the case with securities 
held for the

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account of customers registered in "street name," and will be the 
responsibility of such Direct Participants or Indirect Participant and not of 
DTC, NiSource or the trustee, subject toany statutory or regulatory 
requirements. Payment to Cede & Co. (or such other nominee as may be requested 
by an authorized representative of DTC) is the responsibility of NiSource and 
the applicable paying agent, disbursement of suchpayments to Direct 
Participants is the responsibility of DTC, and disbursement of such payments 
to the Beneficial Owners is the responsibility of Direct Participants and 
Indirect Participants.
Except as provided herein, a Beneficial Owner of Notes will not be entitled to 
receive physical delivery of such Notes. Accordingly, eachBeneficial Owner 
must rely on the procedures of DTC to exercise any rights under the Notes. The 
laws of some jurisdictions require that certain purchasers of securities take 
physical delivery of securities in definitive form. Such laws may impairthe 
ability to transfer beneficial interests in the global Notes.
DTC may discontinue providing its services as securities depositarywith 
respect to the Notes at any time by giving reasonable notice to NiSource or 
the trustee. Under such circumstances, in the event that a successor 
securities depositary is not obtained, the Notes certificates will be required 
to be printed anddelivered to the holders of record.
NiSource may decide to discontinue use of the system of book-entry transfers 
through DTC (or asuccessor securities depositary) with respect to the Notes. 
NiSource understands, however, that under current industry practices, DTC 
would notify its Direct Participants and Indirect Participants of NiSource's 
decision, but will only withdrawbeneficial interests from the global Notes at 
the request of each Direct Participant or Indirect Participant. In that event, 
certificates for the Notes will be printed and delivered to the applicable 
Direct Participant or Indirect Participant.
The information in this section concerning DTC and DTC's book-entry system has 
been obtained from sources that NiSource believes to bereliable, but neither 
NiSource nor any underwriter takes any responsibility for the accuracy 
thereof. Neither NiSource nor any underwriter has any responsibility for the 
performance by DTC or its Direct Participants or Indirect Participants of 
theirrespective obligations as described herein or under the rules and 
procedures governing their respective operations.
Global Clearance and SettlementProcedures
Secondary market trading between Clearstream participants and/or Euroclear 
system participants will occur in the ordinaryway in accordance with the 
applicable rules and operating procedures of Clearstream and the Euroclear 
system, as applicable.
Cross-markettransfers between persons holding directly or indirectly through 
DTC on the one hand, and directly or indirectly through Clearstream 
participants or Euroclear system participants on the other, will be effected 
through DTC in accordance with DTCrules on behalf of the relevant European 
international clearing system by its U.S. depositary; however, such 
cross-market transactions will require delivery of instructions to the 
relevant European international clearing system by the counterpartyin such 
system in accordance with its rules and procedures and within its established 
deadlines (European time). The relevant European international clearing system 
will, if the transaction meets its settlement requirements, deliver 
instructions toits U.S. depositary to take action to effect final settlement 
on its behalf by delivering or receiving securities in DTC, and making or 
receiving payment in accordance with normal procedures for
same-day
fundssettlement applicable to DTC. Clearstream participants and Euroclear 
system participants may not deliver instructions directly to their respective 
U.S. depositaries.
Because of time-zone differences, credits of Notes received in Clearstream or 
the Euroclear system as a result of a transaction with a DTCparticipant will 
be made during subsequent securities settlement processing and dated the 
business day following the DTC settlement date. Such credits or any 
transactions in such Notes

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settled during such processing will be reported to the relevant Clearstream 
participant or Euroclear system participant on such business day. Cash 
received in Clearstream or the Euroclear systemas a result of sales of the 
Notes by or through a Clearstream participant or a Euroclear system 
participant to a DTC participant will be received with value on the DTC 
settlement date but will be available in the relevant Clearstream or 
theEuroclear system cash account only as of the business day following 
settlement in DTC.

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                MATERIAL U.S. FEDERAL INCOME TAX CONSIDERATIONS                 
The following is a summary of material U.S. federal income tax considerations 
relating to the purchase, ownership and disposition of theNotes, but does not 
purport to be a complete analysis of all the potential tax considerations 
relating thereto. This summary is based upon the provisions of the Internal 
Revenue Code of 1986, as amended (the "Code"), Treasury Regulationspromulgated 
thereunder, administrative rulings and judicial decisions, all as in effect as 
of the date hereof, and all of which are subject to change, possibly with 
retroactive effect. We have not sought any ruling from the Internal Revenue 
Service(the "IRS") with respect to the statements made and the conclusions 
reached in the following summary, and there can be no assurance that the IRS 
or a court will agree with such statements and conclusions.
This summary is limited to holders who purchase the Notes upon their initial 
issuance at their initial "issue price" within themeaning of Section 1273 of 
the Code (
i.e.
, the first price at which a substantial amount of Notes is sold to the public 
for cash, not including sales to bond houses, brokers or similar persons or 
organizations acting in the capacity ofunderwriters, placement agents or 
wholesalers) and who hold the Notes as "capital assets" within the meaning of 
Section 1221 of the Code (generally, property held for investment). This 
summary does not address U.S. federal tax lawsother than income tax laws, such 
as estate and gift tax laws, and it does not address tax considerations 
arising under the laws of any foreign, state or local jurisdiction. In 
addition, this discussion does not address all tax considerations thatmay be 
applicable to a holder's particular circumstances, including the impact of the 
Medicare contribution tax on net investment income or the alternative minimum 
tax, or to holders that may be subject to special tax rules, including, 
withoutlimitation:


 .  banks, insurance companies or other financial institutions;



 .  tax-exempt                                  
    organizations or governmental organizations;



 .  regulated investment companies or real estate investment trusts;



 .  brokers, dealers or traders in securities or commodities;



 .  traders in securities that elect to use a          
    mark-to-market                                     
    method of accounting for their securities holdings;



 .  foreign persons or entities (except to the extent specifically set forth below);



 .  S-corporations,                                                                    
    partnerships or other pass-through entities orarrangements (and investors therein);



 .  U.S. expatriates and certain former citizens or long-term residents of the United States;



 .  "U.S. holders" (as defined below under "--Consequences to U.S.       
    Holders") whose"functional currency" is not the United States dollar;



 .  certain accrual method taxpayers subject to special tax accounting rules as a
    result of their use of financialstatements under Section 451(b) of the Code; 



 .  persons who hold the Notes as a position in a hedging transaction, "straddle," "conversiontransaction;" or



 .  persons deemed to sell the Notes under the constructive sale provisions of the Code.

If an entity or arrangement treated as a partnership for U.S. federal income 
tax purposes holds the Notes, the tax treatment of a partner inthe partnership 
generally will depend upon the status of the partner, the activities of the 
partnership, and certain determinations made at the partner level. 
Accordingly, partnerships holding the Notes and the partners in such 
partnerships shouldconsult their tax advisor regarding the tax consequences of 
the purchase, ownership and disposition of the Notes.
THIS SUMMARY OFMATERIAL U.S. FEDERAL INCOME TAX CONSIDERATIONS IS FOR GENERAL 
INFORMATION ONLY AND IS NOT LEGAL OR TAX ADVICE. YOU ARE URGED TO

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CONSULT YOUR TAX ADVISOR WITH RESPECT TO THE APPLICATION OF U.S. FEDERAL 
INCOME TAX LAWS TO YOUR PARTICULAR SITUATION AS WELL AS ANY TAX CONSEQUENCES 
OF THE PURCHASE, OWNERSHIP AND DISPOSITION OFTHE NOTES ARISING UNDER OTHER 
U.S. FEDERAL TAX RULES OR UNDER THE LAWS OF ANY STATE, LOCAL, FOREIGN OR OTHER 
TAXING JURISDICTION OR UNDER ANY APPLICABLE TAX TREATY.
Classification of the Notes
Thedetermination of whether a security should be classified as indebtedness or 
equity for U.S. federal income tax purposes requires a judgment based on all 
relevant facts and circumstances. There is no statutory, judicial or 
administrative authoritythat directly addresses the U.S. federal income tax 
treatment of securities similar to the Notes. In the opinion of McGuireWoods 
LLP, under current law and based on the facts contained in this prospectus 
supplement, the terms of the indenture andthe Notes, and certain assumptions 
stated in the opinion and representations relied upon in rendering the 
opinion, the Notes will be classified for U.S. federal income tax purposes as 
indebtedness of NiSource (although there is no controllingauthority directly 
on point). This opinion is not binding on the IRS or any court and there can 
be no assurance that the IRS or a court will agree with this opinion.
Moreover, no rulings have been or will be sought from the IRS with respect to 
the transactions described in this prospectus supplement.Accordingly, we 
cannot assure you that the IRS will not challenge the opinion described herein 
or that a court would not sustain such a challenge. If the IRS were to 
successfully challenge the classification of the Notes as indebtedness, 
interestpayments on the Notes would be treated for U.S. federal income tax 
purposes as dividends to the extent of NiSource's current or accumulated 
earnings and profits. In the case of
non-U.S.
holders, interestpayments treated as dividends would be subject to withholding 
of U.S. income tax, except to the extent such withholding is reduced by an 
applicable income tax treaty or except if the payments are effectively 
connected with the
non-U.S.
holder's conduct of a trade or business in the United States (or, if an 
applicable U.S. income tax treaty applies, attributable to a permanent 
establishment maintained within the United States by the
non-U.S.
holder), in which case such payments would be subject to U.S. federal income 
tax on a net income basis in the same manner as if that
non-U.S.
holder were a U.S.holder (as described below). We agree, and by acquiring an 
interest in a Note, each beneficial owner of a Note will agree, to treat the 
Notes as indebtedness of NiSource for United States federal income tax 
purposes. You should consult your taxadvisors regarding the tax consequences 
that will arise if the Notes are not treated as indebtedness of NiSource for 
U.S. federal income tax purposes. The remainder of this discussion assumes 
that the Notes will be respected as indebtedness for U.S.federal income tax 
purposes.
U.S. Holders
The following is a summary of certain material U.S. federal income tax 
consequences that will apply to you if you are a U.S. holder (as definedbelow) 
of the Notes. Certain consequences to
non-U.S.
holders (as defined below under "--Consequences to
Non-U.S.
Holders") of the Notes are describedunder "--Consequences to
Non-U.S.
Holders" below. The term "U.S. holder" means a beneficial owner of a Note 
that, for U.S. federal income tax purposes, is or is treated as:


 .  an individual who is a citizen or resident of the United States;



 .  a corporation (or other entity taxable as a corporation for U.S. federal income tax purposes) created     
    ororganized in or under the laws of the United States or of any state thereof or the District of Columbia;



 .  an estate the income of which is subject to U.S. federal income taxation regardless of its source; or



 .  a trust that (i) is subject to the primary supervision of a United States court and the 
    control of one ormore "United States persons" (within the meaning of Section 7701(a)(30)
    of the Code), or (ii) has a valid election in effect under applicable Treasury          
    Regulations to be treated as a United States person for U.S. federal incometax purposes.


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Payments of Interest
Except as described below, a U.S. holder will be taxed on any stated interest 
on the Notes at the time that such interest is received oraccrued, in 
accordance with such U.S. holder's method of accounting for U.S. federal 
income tax purposes.
Original Issue Discount
Special rules apply with respect to debt instruments that are issued with 
original issue discount ("OID"). Under applicable TreasuryRegulations relating 
to OID, the possibility that stated interest on the Notes might be deferred 
(see Supplemental Description "Supplemental Description of the Notes--Option 
to Defer Interest Payments") could result in the Notes beingtreated as issued 
with OID, unless the likelihood of such deferral is considered remote. We 
believe and intend to take the position that the likelihood of exercising our 
option to defer payment of stated interest is remote within the meaning of 
theTreasury Regulations in part because the exercise of the option to defer 
payments of stated interest on the Notes generally would prevent us from: (1) 
declaring or paying any dividend or distribution on our capital stock; (2) 
redeeming,purchasing, acquiring or making a liquidation payment with respect 
to any of our capital stock; (3) paying any principal, interest or premium on, 
or repaying, repurchasing or redeeming any of our debt securities that rank on 
parity with, orjunior to, the Notes; or (4) making any payments with respect 
to any guarantee of debt securities if such guarantee ranks on parity with or 
junior to the Notes. Similarly, in certain circumstances (see "Supplemental 
Description of theNotes--Redemption--Redemption Following a Rating Agency 
Event"), we may be obligated to pay amounts in excess of stated interest on or 
principal of the Notes. Such excess payments will not affect the amount of 
interest income that aU.S. holder recognizes if there is only a remote 
likelihood that such payments will be made. We believe and intend to take the 
position that the likelihood that we will make any such payments is remote. 
Our determination regarding the remoteness ofthese contingencies is binding on 
a holder, unless the holder discloses in the proper manner to the IRS that it 
is taking a different position.
In addition to the foregoing, we believe that the Notes should be treated for 
U.S. federal income tax purposes as "variable rate debtinstruments" that 
provide for a single fixed rate followed by a qualified floating rate (a 
"QFR"). Applicable Treasury Regulations set forth rules to determine whether 
the fixed rate and the QFR result in a debt instrument beingtreated as issued 
with OID at time of issuance. It is our expectation that the initial interest 
rate (the "fixed rate") and the interest rate on each Reset Date (the 
"floating rate") for the Notes will be set in a manner thatwill not result in 
OID. In light of the foregoing rules applicable to the Notes, we expect that 
the Notes will not be issued with OID. Accordingly, except as set forth below, 
each U.S. holder should include in gross income that holder'sallocable share 
of interest on the Notes in accordance with that holder's method of tax 
accounting.
However, if the IRS successfullychallenged our position regarding the 
remoteness of the contingencies described above, or if the fixed rate and 
floating rate were to be set in a manner inconsistent with our expectations, 
the Notes would be treated as issued with OID at the time ofissuance. 
Specifically:


 .  If the possibility of interest deferral were determined not to be remote, the Notes would 
    be treated as issuedwith OID and all stated interest on the Notes would be treated as OID.



 .  If payments of stated interest on the Notes are deferred, the Notes may
    at that time be treated, solely forpurposes of determining the amount  
    of OID on the Notes, as having been retired and reissued with OID, and 
    the sum of the remaining interest payments on the Notes would be OID.  



 .  Finally, if any portion of interest pursuant to the fixed rate or the floating rate is determined as of the issuedate to be in
    excess of "qualified stated interest" on the Notes, such excess, if significant enough, would potentially give rise to OID.   

In the event the Notes are treated as issued with OID, each U.S. holder would 
be required to accrue and include OID in taxable income on aconstant yield 
basis before the receipt of the cash attributable to the interest

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(regardless of that U.S. holder's method of tax accounting), and actual 
distributions of stated interest would not be reported as taxable income.

Additionally, if the IRS were to determine that the possibility of excess 
payments was not remote, the Notes could be treated as"contingent payment debt 
instruments," in which case a U.S. holder would be required to accrue interest 
income on the Notes in excess of stated interest and treat as ordinary income 
rather than as capital gain any income realized on thetaxable disposition of 
Notes. In the event excess payments are made, the U.S. holder will be required 
to recognize such amounts as income. The remainder of this discussion assumes 
that the Notes will not be treated as contingent payment debtinstruments.
Sale, Exchange, Redemption or Other Taxable Disposition of Notes
Upon the sale, exchange, redemption or other taxable disposition of a Note, a 
U.S. holder generally will recognize gain or loss equal to thedifference 
between the amount realized on the sale, exchange, redemption or retirement 
and that U.S. holder's adjusted tax basis in the Note. For these purposes, the 
amount realized does not include any amount attributable to accrued but 
unpaidinterest not previously included in income, which will constitute 
ordinary income. If the Notes have not been subject to the OID rules, then a 
U.S. holder's adjusted tax basis in the Notes generally will be its initial 
purchase price. If theNotes have been subject to the OID rules, then a U.S. 
holder's tax basis in a Note would be increased by any OID previously 
includible in that U.S. holder's gross income through the date of disposition 
and decreased by payments received bythat U.S. holder on the Notes in respect 
of accrued OID. Gain or loss realized on the sale, exchange, redemption or 
retirement of a Note generally will be capital gain or loss and will be 
long-term capital gain or loss if at the time of the sale,exchange, redemption 
or retirement the Note has been held by that U.S. holder for more than one 
year. A U.S. holder that is an individual generally is entitled to 
preferential treatment for net long-term capital gains. Any capital losses 
realizedgenerally may be used by a corporate taxpayer only to offset capital 
gains, and by an individual taxpayer only to the extent of capital gains plus 
$3,000 of other income.
Backup Withholding and Information Reporting
Information reporting requirements generally apply in connection with payments 
on the Notes to, and proceeds from a sale or other dispositionof Notes by,
non-corporate
U.S. holders. A U.S. holder will be subject to backup withholding tax on such 
payments and proceeds if the U.S. holder fails to provide its correct taxpayer 
identification number tothe paying agent in the manner required under U.S. 
federal income tax law, fails to comply with applicable backup withholding tax 
rules or does not otherwise establish an exemption from backup withholding. 
Backup withholding is not an additionaltax. Any amounts withheld under the 
backup withholding rules will entitle that U.S. holder to a credit against 
that U.S. holder's U.S. federal income tax liability and may entitle that U.S. 
holder to a refund, provided that the requiredinformation is timely and 
properly furnished to the IRS.
U.S. holders should consult their tax advisors regarding the application 
ofbackup withholding in their particular situation, the availability of an 
exemption from backup withholding and the procedure for obtaining such an 
exemption, if available.
Non-U.S.
Holders
The following is a summary of certain material U.S. federal income tax 
consequences that will apply to you if you are a
non-U.S.
holder of the Notes. The term
"non-U.S.
holder" means a beneficial owner of a note that is not a partnership (or other 
entity or arrangement treated as apartnership for U.S. federal income tax 
purposes) or a U.S. holder.
Special rules may apply to certain
non-U.S.
holders such as "controlled foreign corporations" and "passive foreign 
investment companies." Such entities should consult their tax advisors to 
determine the U.S. federal, state,local and other tax consequences that may be 
relevant to them.

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Payments of Interest
Subject to the discussion of backup withholding and information reporting and 
FATCA below and assuming that the Notes will be treated asindebtedness for 
U.S. federal income tax purposes, no withholding of U.S. federal income tax 
will apply to interest paid on a Note to a
non-U.S.
holder under the "portfolio interest exemption,"provided that:


 .  the interest is not effectively connected with the          
    non-U.S.                                                    
    holder'sconduct of a trade or business in the United States;



 .  the                                                                   
    non-U.S.                                                              
    holder does not actually or constructively own 10% or moreof the total
    combined voting power of all classes of our stock entitled to vote;   



 .  the                                                                                                                   
    non-U.S.                                                                                                              
    holder is not a bank whose receipt of interest with respectto a Note is described in Section 881(c)(3)(A) of the Code;



 .  the                                                                                                                        
    non-U.S.                                                                                                                   
    holder is not a controlled foreign corporation that isrelated directly or constructively to us through stock ownership; and



 .  the                                                                                                                  
    non-U.S.                                                                                                             
    holder provides to the withholding agent, in accordance withspecified procedures, a statement to the effect that such
    non-U.S.                                                                                                             
    holder is not a United States person (generally by providing a properly executed IRS Form                            
    W-8BEN                                                                                                               
    orIRS Form                                                                                                           
    W-8BEN-E,                                                                                                            
    as applicable).                                                                                                      

If a
non-U.S.
holder cannot satisfy the requirements of the portfolio interest exemption 
described above, interest paid on the Notes (including payments in respect of 
OID, if any, on the Notes) made to a
non-U.S.
holder will be subject to a 30% U.S. federal withholding tax, unless that
non-U.S.
holder provides the withholding agent with a properly executed statement(i) 
claiming an exemption from or reduction of withholding under an applicable 
U.S. income tax treaty or (ii) stating that the interest is not subject to 
withholding tax because it is effectively connected with that
non-U.S.
holder's conduct of a trade or business in the United States.
If a
non-U.S.
holder is engaged in a trade or business in the United States (or, if an 
applicable U.S. income tax treaty applies, if the
non-U.S.
holder maintains a permanentestablishment within the United States) and the 
interest is effectively connected with the conduct of that trade or business 
(or, if an applicable U.S. income tax treaty applies, attributable to that 
permanent establishment), that
non-U.S.
holder will be subject to U.S. federal income tax on the interest on a net 
income basis in the same manner as if that
non-U.S.
holder were a U.S. holder (as describedabove). In addition, if such
non-U.S.
holder is a foreign corporation, it may also, under certain circumstances, be 
subject to an additional branch profits tax at a 30% rate or such lower rate 
as may bespecified by an applicable income tax treaty.
The certifications described above generally must be provided to the 
applicable withholdingagent prior to the payment of interest and must be 
updated periodically.
Non-U.S.
holders that do not timely provide the applicable withholding agent with the 
required certification, but that qualify for areduced rate under an applicable 
income tax treaty, may obtain a refund of any excess amounts withheld by 
timely filing an appropriate claim for refund with the IRS.
Non-U.S.
holders should consult their taxadvisors regarding their entitlement to 
benefits under any applicable income tax treaty.
Sale, Exchange, Redemption or Other Taxable Disposition ofNotes
Subject to the discussion of backup withholding and information reporting and 
FATCA below, any gain realized upon the sale,exchange, redemption or other 
taxable disposition of a Note (other than any amount allocable to accrued and 
unpaid interest, which will be taxable as interest and may be subject to the 
rules discussed above in "--Consequences to
Non-U.S.
Holders--Payments of Interest") generally will not be subject to U.S. federal 
income tax unless:


 .  that gain is effectively                                                                      
    connected with the                                                                            
    non-U.S.                                                                                      
    holder'sconduct of a trade or business in the United States (and, if required by an applicable
    income tax treaty, such gain is attributable to a permanent establishment maintained by the   
    non-U.S.                                                                                      
    holder in the UnitedStates); or                                                               


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 .  the                                                                            
    non-U.S.                                                                       
    holder is an individual who is present in the United Statesfor 183 days or more
    in the taxable year of that disposition, and certain other conditions are met. 

Proceeds from thedisposition of a Note that are attributable to accrued but 
unpaid interest generally will be subject to, or exempt from, tax to the same 
extent as described above under "--Payments of Interest" with respect to 
interest paid on a Note.
Backup Withholding and Information Reporting
The amount of interest paid on the Notes to
non-U.S.
holders generally must be reported annually to theIRS. These reporting 
requirements apply regardless of whether withholding was reduced or eliminated 
by any applicable income tax treaty. Copies of the information returns 
reflecting income in respect of the Notes may also be made available to thetax 
authorities in the country in which the
non-U.S.
holder is a resident under the provisions of an applicable income tax treaty 
or information sharing agreement.
A
non-U.S.
holder generally will not be subject to additional information reporting or to 
backupwithholding with respect to payments on the Notes or to information 
reporting or backup withholding with respect to proceeds from the sale or 
other disposition of Notes to or through a U.S. office of any broker, as long 
as the holder:


 .  has furnished to the payor or broker a properly executed IRS Form
    W-8BEN                                                           
    or IRS Form                                                      
    W-8BEN-E,                                                        
    as applicable, certifying, under penalties of perjury, the       
    non-U.S.                                                         
    holder's status as a                                             
    non-U.S.                                                         
    person;                                                          



 .  has furnished to the payor or broker other documentation upon which it may rely to treat the payments as made toa
    non-U.S.                                                                                                         
    person in accordance with applicable Treasury Regulations; or                                                    



 .  otherwise establishes an exemption.

The payment of the proceeds from a sale or other disposition of Notes to or 
through a foreign office of a broker generally will not be subjectto 
information reporting or backup withholding. However, a sale or disposition of 
Notes will be subject to information reporting, but not backup withholding, if 
it is to or through a foreign office of a U.S. broker or a
non-U.S.
broker with certain enumerated connections with the United States unless the 
documentation requirements described above are met or the holder otherwise 
establishes an exemption.
Backup withholding is not an additional tax. Any amounts withheld under the 
backup withholding rules from a payment to a
non-U.S.
holder will be allowed as a credit against such holder's U.S. federal income 
tax liability, if any, or will otherwise be refundable, provided that the 
requisite procedures are followed and the properinformation is filed with the 
IRS on a timely basis.
Non-U.S.
holders should consult their own tax advisors regarding their qualification 
for exemption from backup withholding and the procedure for obtainingsuch 
exemption, if applicable.
Foreign Account Tax Compliance Act
Pursuant to sections 1471 through 1474 of the Code (commonly referred to as 
the Foreign Accounts Tax Compliance Act or "FATCA"), andunder associated 
Treasury Regulations and related administrative guidance, a U.S. federal 
withholding tax at a 30% rate applies to "withholdable payments" received by 
certain
non-U.S.
holders, ifcertain disclosure requirements related to U.S. ownership or 
accounts are not satisfied (generally by providing a properly executed IRS Form

W-8BEN
or Form
W-8BEN-E,
as applicable, or other applicable and/or successor forms). An applicable 
intergovernmental agreement regarding FATCA between the U.S. and a foreign 
jurisdiction may modify the rules discussed inthis paragraph. For this 
purpose, "withholdable payments" generally include payments of interest on, 
and payments of gross proceeds from the sale or other disposition of, the 
Notes. However, the IRS issued proposed Treasury Regulationsthat eliminate 
FATCA withholding on payments of gross proceeds (but not on payments of 
interest). Pursuant to the preamble to the proposed Treasury

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Regulations, we and any withholding agent may (but are not required to) rely 
on this proposed change to FATCA withholding until the final Treasury 
Regulations are issued. Prospective investorsshould consult their tax advisors 
regarding the potential application of FATCA to their investment in the Notes. 
If U.S. federal withholding tax under FATCA, or otherwise, is required on 
payments made to any holder of Notes, such withheld amountwill be paid to the 
IRS. That payment, if made, will be treated as a payment of cash to the holder 
of the Notes with respect to whom the payment was made and will reduce the 
amount of cash to which such holder would otherwise be entitled.
The U.S. federal income tax discussion set forth above is included for general 
information only and may not be applicable depending upon aholder's particular 
situation. Prospective investors should consult their tax advisors regarding 
the tax consequences to them of the purchase, ownership and disposition of 
Notes, including the tax consequences under state, local, foreign andother tax 
laws.

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                      UNDERWRITING (CONFLICTS OF INTEREST)                      
Subject to conditions set forth in the underwriting agreement, we have agreed 
tosell all, but not less than all, of the Notes to the underwriters listed 
below, and the underwriters have severally and not jointly agreed to purchase 
the principal amount of the Notes set forth opposite its name in the following 
table:


                                               
Underwriter                   Principal Amount 
                               of the Notes    
BofA Securities, Inc.               $          
Goldman Sachs & Co. LLC             $          
J.P. Morgan Securities LLC          $          
Morgan Stanley & Co. LLC            $          
Wells Fargo Securities, LLC         $          
                                               
Total                               $          
                                               

The underwriting agreement provides that the underwriters are obligated to 
purchase all of the Notes if anyNotes are purchased. The underwriting 
agreement also provides that if an underwriter defaults, the purchase 
commitments of
non-defaulting
underwriters may be increased or the offering of the Notes may beterminated.
The underwriters propose to offer the Notes initially at the price to public 
set forth on the cover page of this prospectussupplement and to certain 
dealers at that price less a selling concession of % of the principal amount 
per Note. The underwriters may allow, and those certain dealers may reallow, a 
discount of% of the principal amount per Note on sales to certain other 
dealers. After the initial public offering of the Notes, the price to public 
and other selling terms may be changed.
We estimate that our total expenses for this offering, excluding the 
underwriting discount, will be approximately$.
The Notes will be a new issue of securities with no established trading 
market. One or more of theunderwriters intends to make a secondary market for 
the Notes. However, they are not obligated to do so and may discontinue making 
a secondary market for the Notes at any time without notice. No assurance can 
be given as to how liquid the tradingmarket for the Notes will be.
We have agreed to indemnify the underwriters against liabilities under the 
Securities Act, as amended, orcontribute to payments which the underwriters 
may be required to make in that respect.
The offering of the Notes by the underwriters issubject to receipt and 
acceptance and subject to the underwriters' right to reject any order in whole 
or part.
In connection withthe offering, the underwriters may engage in stabilizing 
transactions, over-allotment transactions, syndicate covering transactions and 
penalty bids in accordance with Regulation M under the Exchange Act.


 .  Stabilizing transactions permit bids to purchase the underlying security
    so long as the stabilizing bids do notexceed a specific maximum.        



 .  Over-allotment involves sales by the underwriters of Notes in excess of the principal amount 
    of Notes theunderwriters are obligated to purchase, which creates a syndicate short position.



 .  Syndicate covering transactions involve purchases of the Notes in the open market after the distribution
    has beencompleted in order to cover syndicate short positions. A short position is more likely to be    
    created if the underwriters are concerned that there may be downward pressure on the price of the Notes 
    in the open market after pricing that couldadversely affect investors who purchase in the offering.     


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 .  Penalty bids permit the underwriters to reclaim a selling concession
    from a syndicate member when the Notesoriginally sold by the        
    syndicate member are purchased in a stabilizing transaction or a    
    syndicate covering transaction to cover syndicate short positions.  

These stabilizing transactions, syndicate-covering transactions and penalty 
bids may have the effect of raising or maintaining the marketprice of the 
Notes or preventing or retarding a decline in the market price of the Notes. 
As a result, the price of the Notes may be higher than the prices that might 
otherwise exist in the open market. The underwriters are not required to 
engage inthese transactions and these transactions, if commenced, may be 
discontinued at any time.
We expect to deliver the Notes against paymentfor the Notes on or about the 
date specified in the last paragraph on the cover page of this prospectus 
supplement, which will be thebusiness day following the date of the pricing of 
the Notes. Under Rule
15c6-1
under the Exchange Act, trades in the secondary market generally are required 
to settle in one business day, unless the parties to a trade expressly agree 
otherwise. Accordingly, purchasers who wish to tradeNotes on the day of 
pricing or the nextsucceeding business days will be required, by virtue of the 
fact that the Notes initially will settle in T+, to specify alternative 
settlementarrangements to prevent a failed settlement. Purchasers of the Notes 
who wish to trade the Notes on the day of pricing or the nextsucceeding 
business days should consult their own advisors.
Other Relationships
Certain of theunderwriters and their affiliates have provided certain 
investment banking, commercial banking and other financial services to us and 
our affiliates, for which they have received customary fees. The underwriters 
and their affiliates may from time totime engage in future transactions with 
us and our affiliates and provide services to us and our affiliates in the 
ordinary course of their business.
In the ordinary course of their various business activities, the underwriters 
and their respective affiliates may make or hold a broad arrayof investments 
and actively trade debt and equity securities (or related derivative 
securities) and financial instruments (including bank loans) for their own 
accounts and for the accounts of their customers, and such investments and 
securitiesactivities may involve our securities and/or instruments. Certain of 
the underwriters or their affiliates have a lending relationship with us. 
Certain of those underwriters or their affiliates routinely hedge, and certain 
other of those underwritersor their affiliates may hedge, their credit 
exposure to us consistent with their customary risk management policies. 
Typically, such underwriters and their affiliates would hedge such exposure by 
entering into transactions which consist of eitherthe purchase of credit 
default swaps or the creation of short positions in our securities, including 
potentially the Notes offered hereby. Any such credit default swaps or short 
positions could adversely affect future trading prices of the Notesoffered 
hereby. The underwriters and their respective affiliates may also make 
investment recommendations and/or publish or express independent research 
views in respect to such securities or instruments and may at any time hold, 
or recommend toclients that they acquire, long and/or short positions in such 
securities and instruments.
Conflicts of Interest
Affiliates of certain of the underwriters are lenders under our revolving 
credit facility. To the extent that we use the net proceeds from thisoffering 
to repay amounts we have borrowed or may borrow or
re-borrow
in the future under our revolving credit facility, these lenders will receive 
their pro rata portions of such proceeds. Further, certain ofthe underwriters 
are dealers under our commercial paper program. To the extent we use the net 
proceeds from this offering to repay notes issued under our commercial paper 
program that are held by one or more sales agents, such underwriters 
willreceive proceeds from this offering.
Because some of the net proceeds of this offering may be used to repay amounts 
outstanding under ourrevolving credit facility or to repay notes issued under 
our commercial paper program that are held by certain underwriters, such 
underwriters would be deemed to have a conflict of interest under FINRA Rule 
5121 to the

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extent such underwriters or affiliates receive at least 5% of the net proceeds 
of the offering. Any underwriter deemed to have a conflict of interest would 
be required to conduct the distributionof the Notes in accordance with FINRA 
Rule 5121. If the offering is conducted in accordance with FINRA Rule 5121, 
such underwriter would not be permitted to confirm a sale to an account over 
which it exercises discretionary authority without firstreceiving specific 
written approval from the account holder. See the "Use of Proceeds" section of 
this prospectus supplement for more information.
Selling Restrictions
European Economic Area
The Notes are not intended to be offered, sold or otherwise made available to 
and should not be offered, sold or otherwise madeavailable to any retail 
investor in the European Economic Area ("EEA"). For these purposes, a retail 
investor means a person who is one (or more) of: (i) a retail client as 
defined in point (11) of Article 4(1) of Directive2014/65/EU (as amended, 
"MiFID II"); or (ii) a customer within the meaning of Directive 2016/97/EU 
where that customer would not qualify as a professional client as defined in 
point (10) of Article 4(1) of MiFID II; or(iii) not a qualified investor as 
defined in Regulation 2017/1129/EU (as amended, the "Prospectus Regulation"). 
No key information document required by Regulation (EU) No 1286/2014 (as 
amended, the "PRIIPs Regulation") foroffering or selling the Notes or 
otherwise making them available to retail investors in the EEA has been 
prepared. Offering or selling the Notes or otherwise making them available to 
any retail investor in the EEA may be unlawful under the PRIIPsRegulation. 
This prospectus supplement and the accompanying prospectus have been prepared 
on the basis that any offer of Notes in any Member State of the EEA will be 
made pursuant to an exemption under the Prospectus Regulation from the 
requirementto publish a prospectus. This prospectus supplement and the 
accompanying prospectus are not prospectuses for the purposes of the 
Prospectus Regulation.
For the purposes of this provision, the expression an "offer to the public" in 
relation to any Notes in any Member State of the EEAmeans the communication in 
any form and by any means of sufficient information on the terms of the offer 
and any Notes to be offered so as to enable an investor to decide to purchase 
any Notes.
United Kingdom
The Notes are notintended to be offered, sold or otherwise made available to 
and should not be offered, sold or otherwise made available to any retail 
investor in the United Kingdom ("UK"). For these purposes, a retail investor 
means a person who is one(or more) of: (i) a retail client, as defined in 
point (8) of Article 2 of Regulation (EU) No 2017/565 as it forms part of 
domestic law by virtue of the European Union (Withdrawal) Act 2018 (as 
amended, "EUWA"); (ii) a customerwithin the meaning of the provisions of the 
Financial Services and Markets Act 2000 (as amended, the "FSMA") and any rules 
or regulations made under the FSMA to implement Directive (EU) 2016/97, where 
that customer would not qualify as aprofessional client, as defined in point 
(8) of Article 2(1) of Regulation (EU) No 600/2014 as it forms part of 
domestic law by virtue of the EUWA; or (iii) not a qualified investor as 
defined in Article 2 of Regulation 2017/1129/EU as itforms part of domestic 
law by virtue of the EUWA (the "UK Prospectus Regulation"). Consequently no 
key information document required by Regulation (EU) No 1286/2014 as it forms 
part of domestic law by virtue of the EUWA (the "UKPRIIPs Regulation") for 
offering or selling the Notes or otherwise making them available to retail 
investors in the UK has been prepared and therefore offering or selling the 
Notes or otherwise making them available to any retail investor inthe UK may 
be unlawful under the UK PRIIPs Regulation. This prospectus supplement and the 
accompanying prospectus have been prepared on the basis that any offer of 
Notes in the UK will be made pursuant to an exemption under the UK 
ProspectusRegulation from the requirement to publish a prospectus. This 
prospectus supplement and the accompanying prospectus are not prospectuses for 
the purposes of the UK Prospectus Regulation.

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For the purposes of this provision, the expression an "offer to the public" 
inrelation to any Notes in the UK means the communication in any form and by 
any means of sufficient information on the terms of the offer and any Notes to 
be offered so as to enable an investor to decide to purchase any Notes.
Each person in the UK who receives any communication in respect of, or who 
acquires any Notes under, the offer to the public contemplated inthis 
prospectus supplement or to whom the Notes are otherwise made available, will 
be deemed to have represented, warranted and agreed to and with each 
underwriter and the Company that it and any person on whose behalf it acquires 
Notes is(i) a "qualified investor" within the meaning of Article 2(e) of the 
UK Prospectus Regulation; and (ii) not a retail investor.
Any distributor subject to the FCA Handbook Product Intervention and Product 
Governance Sourcebook (the "UK MiFIR Product GovernanceRules") subsequently 
offering, selling or recommending the Notes is responsible for undertaking its 
own target market assessment in respect of the Notes and determining 
appropriate distribution channels. Neither the Company nor any of 
theunderwriters make any representations or warranties as to a distributor's 
compliance with the UK MiFIR Product Governance Rules.
Inthe UK, this prospectus supplement and the accompanying prospectus are being 
distributed only to, and are directed only at, and any offer subsequently made 
may only be directed at persons (i) who are "qualified investors" (as 
definedin the UK Prospectus Regulation), (ii) who have professional experience 
in matters relating to investments falling within Article 19 (5) of the 
Financial Services and Markets Act 2000 (Financial Promotion) Order 2005, as 
amended (the"Order") and/or (iii) who are high net worth companies (or persons 
to whom it may otherwise be lawfully communicated) falling within Article 
49(2)(a) to (e) of the Order (all such persons together being referred to 
as"relevant persons") or otherwise in circumstances which have not resulted 
and will not result in an offer to the public of the Notes in the UK within 
the meaning of the FSMA. This prospectus supplement and the accompanying 
prospectus mustnot be acted on or relied on in the UK by persons who are not 
relevant persons. In the UK, any investment or investment activity to which 
this prospectus supplement and the accompanying prospectus relates is only 
available to, and will be engaged inwith, relevant persons.
Switzerland
This prospectus supplement and the accompanying prospectus are not intended to 
constitute an offer or solicitation to purchase or invest in theNotes. The 
Notes may not be publicly offered, directly or indirectly, in Switzerland 
within the meaning of the Swiss Financial Services Act ("FinSA") and no 
application has or will be made to admit the Notes to trading on any trading 
venue(exchange or multilateral trading facility) in Switzerland. Neither this 
prospectus supplement, the accompanying prospectus nor any other offering or 
marketing material relating to the Notes constitutes a prospectus pursuant to 
the FinSA, andneither this prospectus supplement, the accompanying prospectus 
nor any other offering or marketing material relating to the Notes may be 
publicly distributed or otherwise made publicly available in Switzerland.
Canada
The Notes may be sold inCanada only to purchasers resident or located in the 
Provinces of Ontario, Quebec, Alberta and British Columbia, purchasing, or 
deemed to be purchasing, as principal that are accredited investors, as 
defined in National Instrument 45-
106Prospectus Exemptions
or subsection 73.3(1) of the
Securities Act
(Ontario), and are permitted clients, as defined in National Instrument
31-103
Registration Requirements, Exemptions and OngoingRegistrant Obligations
. Any resale of the Notes must be made in accordance with an exemption from, 
or in a transaction not subject to, the prospectus requirements of applicable 
securities laws.
Securities legislation in certain provinces or territories of Canada may 
provide a purchaser with remedies for rescission or damages if thisprospectus 
supplement and the accompanying prospectus (including any amendment

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thereto) contains a misrepresentation, provided that the remedies for 
rescission or damages are exercised by the purchaser within the time limit 
prescribed by the securities legislation of thepurchaser's province or 
territory. The purchaser should refer to any applicable provisions of the 
securities legislation of the purchaser's province or territory for 
particulars of these rights or consult with a legal advisor.
Pursuant to section 3A.3 of National Instrument
33-105
Underwriting Conflicts
("NI
33-105"),
the underwriters are not required to comply with the disclosure requirements 
of NI
33-105
regarding underwriter conflicts of interest in connection with thisoffering.
Hong Kong
Thisprospectus supplement and the accompanying prospectus do not constitute 
nor are they intended to be an offer or invitation to the public in Hong Kong 
to acquire the Notes. The Notes have not been, and may not and will not be 
offered or sold in HongKong, by means of any document, other than (i) to 
"professional investors" as defined in the Securities and Futures Ordinance 
(Cap. 571, Laws of Hong Kong) and any rules made thereunder, or (ii) in other 
circumstances which donot result in the document being a "prospectus" as 
defined in the Companies (Winding Up and Miscellaneous Provisions) Ordinance 
(Cap. 32, Laws of Hong Kong) and which do not constitute an offer to the 
public within the meaning of thatOrdinance. No advertisement, invitation or 
document relating to the Notes has been, may be or will be issued, or has 
been, may be, or will be in the possession of any person for the purpose of 
issue (in each case whether in Hong Kong or elsewhere),which is directed at, 
or the contents of which are likely to be accessed or read by, the public of 
Hong Kong (except if permitted to do so under the securities laws of Hong 
Kong) other than with respect to the Notes which are or are intended to 
bedisposed of only to persons outside Hong Kong or only to "professional 
investors" as defined in the Securities and Futures Ordinance (Cap. 571, Laws 
of Hong Kong) and any rules made thereunder.
The contents of this prospectus supplement and the accompanying prospectus 
have not been reviewed, endorsed or approved by any Hong Kongregulatory 
authorities, including the Securities and Futures Commission and the Companies 
Registry of Hong Kong and neither have they been nor will they be registered 
with the Registrar of Companies in Hong Kong. The Notes may not be offered 
forsubscription to members of the public in Hong Kong. You are advised to 
exercise caution in relation to the offer. If you are in doubt about any 
contents of this prospectus supplement and the accompanying prospectus, you 
should obtain independentprofessional advice. Each person acquiring the Notes 
will be required, and is deemed by the acquisition of the Notes, to confirm 
that such person is aware of the restriction on offers of the Notes described 
in this prospectus supplement, theaccompanying prospectus and the relevant 
offering documents and that such person is not acquiring, and has not been 
offered any Notes in circumstances that contravene any such restrictions and 
that such person has complied with all relevant laws,rules and regulations 
applicable to it/him/her and the jurisdiction(s) where such person or 
its/his/her assets are located.
Japan
This offering of the Notes has not been and will not be registered under the 
Financial Instruments and Exchange Act of Japan (Act No. 25of 1948, as 
amended; the "FIEA"). Accordingly, the Notes may not be offered or sold, 
directly or indirectly, in Japan or to, or for the account or benefit of, any 
"resident" of Japan (which term as used herein means any personresident in 
Japan, including any corporation or other entity organized under the laws of 
Japan), or to, or for the account or benefit of, others for
re-offering
or resale, directly or indirectly, in Japan orto, or for the account or 
benefit of, any resident of Japan, except pursuant to an exemption from the 
registration requirements of, and otherwise in compliance with, the FIEA and 
any other applicable laws, regulations and ministerial guidelines ofJapan in 
effect at the relevant time.
Republic of Korea
The Notes may not be offered, sold and delivered directly or indirectly, or 
offered or sold to any person for reoffering or resale, directly orindirectly, 
in the Republic of Korea or to any resident of the Republic of Korea

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except pursuant to the applicable laws and regulations of the Republic of 
Korea, including, without limitation, the Financial Investment Services and 
Capital Markets Act and the Foreign ExchangeTransaction Law and the decrees 
and regulations thereunder. The Notes have not been and will not be registered 
with the Financial Services Commission of Korea for public offering in the 
Republic of Korea. Furthermore, the Notes may not be resold toresidents of the 
Republic of Korea unless the purchaser of the Notes complies with all 
applicable regulatory requirements (including but not limited to government 
approval requirements under the Foreign Exchange Transaction Law and its 
subordinatedecrees and regulations) in connection with the purchase of the 
Notes.
Singapore
This prospectus supplement and the accompanying prospectus have not been 
registered as a prospectus with the Monetary Authority of Singapore.Accordingly,
 this prospectus and any other document or material in connection with the 
offer or sale, or invitation for subscription or purchase, of Notes may not be 
circulated or distributed, nor may the Notes be offered or sold, or be made 
thesubject of an invitation for subscription or purchase, whether directly or 
indirectly, to persons in Singapore other than (i) to an institutional 
investor as defined in Section 4A of the Securities and Futures Act, Chapter 
289 ofSingapore, as modified or amended from time to time (the "SFA"), 
pursuant to Section 274 of the SFA, (ii) to a relevant person (as defined in 
Section 275(2) of the SFA) pursuant to Section 275(1) of the SFA, or anyperson 
pursuant to Section 275(1A) of the SFA, and in accordance with the conditions 
specified in Section 275, of the SFA and (where applicable) Regulation 3 of 
the Securities and Futures (Classes of Investors) Regulations 2018 
ofSingapore, where each such person is (1) an expert investor (as defined in 
Section 4A of the SFA) or (2) not an individual, or (iii) otherwise pursuant 
to, and in accordance with the conditions of, any other applicable provisionof 
the SFA.
Where the Notes are subscribed or purchased pursuant to an offer made in 
reliance on Section 275 of the SFA by arelevant person which is:


 (a) a corporation (which is not an accredited investor (as defined   
     in Section 4A of the SFA)) the solebusiness of which is to hold  
     investments and the entire share capital of which is owned by one
     or more individuals, each of whom is an accredited investor; or  



 (b) a trust (where the trustee is not an accredited investor) whose sole purpose is to hold     
     investments and eachbeneficiary of the trust is an individual who is an accredited investor,

securities or securities based derivative contracts (each termas defined in 
Section 2(1) of the SFA) of that corporation or the beneficiaries' rights and 
interest (howsoever described) in that trust shall not be transferred within 
six months after that corporation or that trust has acquired the Notespursuant 
to an offer made under Section 275 of the SFA except:


 (1) to an institutional investor pursuant to Section 274 of the SFA or to a    
     relevant person (as defined inSection 275(2) of the SFA) pursuant to       
     Section 275(1) of the SFA, or to any person pursuant to Section 275(1A) and
     in accordance with the conditions specified in Section 275 of the SFA;     



 (2) (in the case of a corporation) where the transfer arises from an offer referred to in Section 276(3)(i)(B)of the SFA
     or (in the case of a trust) where the transfer arises from an offer referred to in Section 276(4)(i)(B) of the SFA; 



 (3) where no consideration is or will be given for the transfer;



 (4) where the transfer is by operation of law;



 (5) as specified in Section 276(7) of the SFA;



 (6) as specified in Regulation 32 of the Securities and Futures (Offer of
     Investments) (Shares and Debentures)Regulations 2005 of Singapore; or


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 (7) as specified in Regulation 37A of the Securities and Futures (Offers of Investments)
     Securities andSecurities-based Derivative Contracts Regulations 2018 of Singapore.  

Singapore SFA Product Classification--Solelyfor the purposes of our 
obligations pursuant to section 309B of the SFA and the Securities and Futures 
(Capital Markets Products) Regulations 2018 of Singapore (the "CMP Regulations 
2018"), we have determined, and hereby notify allrelevant persons (as defined 
in Section 309A(1) of the SFA) that the Notes are "prescribed capital markets 
products" (as defined in the CMP Regulations 2018) and Excluded Investment 
Products (as defined in MAS Notice SFA
04-N12:
Notice on the Sale of Investment Products and MAS Notice
FAA-N16:
Notice on Recommendations on Investment Products).
Taiwan
The Notes have not beenand will not be registered or filed with, or approved 
by, the Financial Supervisory Commission of Taiwan, Republic of China and/or 
any other regulatory authority of Taiwan pursuant to relevant securities laws 
and regulations and may not be offered,issued or sold within Taiwan through a 
public offering or in any manner which would constitute an offer within the 
meaning of the Securities and Exchange Act of Taiwan or relevant laws and 
regulations that requires a registration, filing or approvalof the Financial 
Supervisory Commission of Taiwan and/or other regulatory authority of Taiwan. 
No person or entity in Taiwan has been authorized to offer, sell, distribute 
or otherwise intermediate the offering of the Notes in Taiwan.

                                      S-41                                      

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                                 LEGAL MATTERS                                  
The validity of the Notes will be passed upon for us by McGuireWoods LLP, 
Pittsburgh, Pennsylvania. The underwriters have been represented byHunton 
Andrews Kurth LLP, New York, New York.
                                    EXPERTS                                     
The consolidated financial statements, and the related financial statement 
schedule, incorporated by reference in this prospectus supplementfrom the 
NiSource Inc. Annual Report on Form
10-K,
and the effectiveness of NiSource Inc. and subsidiaries' internal control over 
financial reporting have been audited by Deloitte & Touche LLP,an independent 
registered public accounting firm, as stated in their reports, which are 
incorporated herein by reference. Such consolidated financial statements and 
financial statement schedule have been so incorporated in reliance upon the 
reportsof such firm given their authority as experts in accounting and 
auditing.

                                      S-42                                      

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PROSPECTUS


                                 NiSource Inc.                                  
                                  Common Stock                                  
                                 PreferredStock                                 
                               Depositary Shares                                
                                Debt Securities                                 
                                    Warrants                                    
                            Stock Purchase Contracts                            
                              Stock Purchase Units                              


NiSource Inc. may offer, from time totime, in amounts, at prices and on terms 
that it will determine at the time of offering, any or all of the following:


 . shares of common stock;



 . shares of preferred stock, in one or more series;



 . depositary shares representing interests in shares of preferred stock;



 . one or more series of its debt securities;



 . warrants to purchase common stock, preferred stock or debt securities; and



 . stock purchase contracts to purchase common stock or preferred stock, either separately
   or in units with thedebt securities described below or U.S. Treasury securities        

We will provide specific terms of these securities, including theiroffering 
prices, in prospectus supplements to this prospectus. The prospectus 
supplements may also add, update or change information contained in this 
prospectus. You should read this prospectus and any prospectus supplement 
carefully before youinvest.
We may offer these securities to or through underwriters, through dealers or 
agents, directly to you or through a combination of these methods.You can find 
additional information about our plan of distribution for the securities under 
the heading "Plan of Distribution" beginning on page 34 of this prospectus. We 
will also describe the plan of distribution for any particularoffering of 
these securities in the applicable prospectus supplement. This prospectus may 
not be used to sell our securities unless it is accompanied by a prospectus 
supplement.
Our common stock is listed on the New York Stock Exchange under the symbol "NI."


Investing in our securities involves risks. You should carefully consider the 
risk factors described under the heading "
Risk Factors
" on page 2 of this prospectus, in the documents that are incorporated by 
reference into this prospectus and, if applicable, in risk factors described 
in any accompanying prospectus supplement before you invest in our securities.



Neither the Securities and Exchange Commission nor any state securities 
commission has approved or disapproved of these securities or determined if 
thisProspectus is truthful or complete. Any representation to the contrary is 
a criminal offense.
                The date of this prospectus isNovember 1, 2022.                 

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                               TABLE OF CONTENTS                                


                                                                       
                                                                  Page 
About This Prospectus                                                1 
Risk Factors                                                         2 
Forward-Looking Statements                                           3 
Where You Can Find More Information                                  5 
NiSource Inc.                                                        7 
Use of Proceeds                                                      8 
Description of Capital Stock                                         9 
Description of Depositary Shares                                    20 
Description of the Debt Securities                                  22 
Description of Warrants                                             30 
Description of Stock Purchase Contracts and Stock PurchaseUnits     31 
Book-Entry Issuance                                                 32 
Plan of Distribution                                                34 
Legal Opinions                                                      36 
Experts                                                             36 


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                             ABOUT THIS PROSPECTUS                              
This prospectus is part of a registration statement that we have filed with 
the Securities and Exchange Commission ("SEC"), utilizing a"shelf" 
registration or continuous offering process. Under this process, we may from 
time to time sell any combination of the securities described in this 
prospectus in one or more offerings.
This prospectus provides you with a general description of the common stock, 
preferred stock, depositary shares, debt securities, warrants, stock 
purchasecontracts and stock purchase units we may offer. Each time we offer 
securities, we will provide a prospectus supplement that will contain specific 
information about the terms of that offering. That prospectus supplement may 
include a description ofany risk factors or other special considerations 
applicable to those securities. The prospectus supplement may also add, update 
or change information contained in this prospectus. If there is any 
inconsistency between the information in theprospectus and the prospectus 
supplement, you should rely on the information in the prospectus supplement. 
You should read both this prospectus and the applicable prospectus supplement 
together with the additional information described under theheading "Where You 
Can Find More Information."
The registration statement containing this prospectus, including the exhibits 
to theregistration statement, provides additional information about us and the 
securities offered under this prospectus. Specifically, we have filed and 
incorporated by reference certain legal documents that control the terms of 
the securities offered bythis prospectus as exhibits to the registration 
statement. We will file or incorporate by reference certain other legal 
documents that will control the terms of the securities we may offer by this 
prospectus as exhibits to the registration statementor to reports we file with 
the SEC that are incorporated by reference into this prospectus.
In addition, we may prepare and deliver one or more"free writing prospectuses" 
to you in connection with any offering of securities under this prospectus. 
Any such free writing prospectus may contain additional information about us, 
our business, the offered securities, the manner in whichsuch securities are 
being offered, our intended use of the proceeds from the sale of such 
securities, risks relating to our business or an investment in such securities 
or other information.
This prospectus and certain of the documents incorporated by reference into 
this prospectus contain, and any accompanying prospectus supplement or 
freewriting prospectus that we deliver to you may contain, summaries of 
information contained in documents that we have filed or will file as exhibits 
to our SEC filings. Such summaries do not purport to be complete and are 
subject to, and qualified intheir entirely by reference to, the actual 
documents filed with the SEC.
Copies of the registration statement of which this prospectus is a part and 
ofthe documents incorporated by reference into this prospectus may be obtained 
as described below under the heading "Where You Can Find More Information."
You should rely only on the information incorporated by reference or provided 
in this prospectus, the accompanying prospectus supplement and any free 
writingprospectus that we deliver to you. We have not authorized anyone to 
provide you with different information. We are not making an offer to sell or 
soliciting an offer to buy these securities in any jurisdiction in which the 
offer or solicitation isnot authorized or in which the person making the offer 
or solicitation is not qualified to do so or to anyone to whom it is unlawful 
to make the offer or solicitation. You should not assume that the information 
in this prospectus or the accompanyingprospectus supplement is accurate as of 
any date other than the date on the front of the document.
References to "NiSource" refer to NiSourceInc. Unless the context requires 
otherwise, references to "we," "us" or "our" refer collectively to NiSource 
and its subsidiaries. References to "securities" refer collectively to the 
common stock, preferredstock, depositary shares, debt securities, warrants, 
stock purchase contracts and stock purchase units registered hereunder.

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                                  RISK FACTORS                                  
Investing in the securities involves risk. You should read carefully the "Risk 
Factors" and "Note regarding forward-looking statements"sections in NiSource's 
most recent Annual Report on Form
10-K
and in NiSource's subsequent Quarterly Reports on Form
10-Q,
which are incorporated by referencein this prospectus. Before making an 
investment decision, you should carefully consider these risks as well as 
other information contained or incorporated by reference in this prospectus, 
and corresponding sections in reports NiSource may file withthe SEC after the 
date of this prospectus. The prospectus supplement applicable to each type or 
series of securities we offer may contain a discussion of additional risks 
applicable to an investment in us and the particular type of securities we 
areoffering under that prospectus supplement.

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                           FORWARD-LOOKING STATEMENTS                           
Some of the information included in this prospectus, in any prospectus 
supplement and in the documents incorporated by reference are "forward-lookingst
atements" within the meaning of the securities laws. Investors and prospective 
investors should understand that many factors govern whether any forward-looking
 statement contained herein will be or can be realized. Any one of those 
factorscould cause actual results to differ materially from those projected. 
These forward-looking statements include, but are not limited to, statements 
concerning NiSource's plans, strategies, objectives, expected performance, 
expenditures, recoveryof expenditures through rates, stated on either a 
consolidated or segment basis, and any and all underlying assumptions and 
other statements that are other than statements of historical fact. From time 
to time, NiSource may publish or otherwise makeavailable forward-looking 
statements of this nature. All such subsequent forward-looking statements, 
whether written or oral and whether made by or on behalf of NiSource, are also 
expressly qualified by these cautionary statements. Allforward-looking 
statements are based on assumptions that management believes to be reasonable; 
however, there can be no assurance that actual results will not differ 
materially.
Factors that could cause actual results to differ materially from the 
forward-looking statements include, among other things, NiSource's ability 
toexecute its business plan or growth strategy, including utility 
infrastructure investments; potential incidents and other operating risks 
associated with NiSource's business; NiSource's ability to adapt to, and 
manage costs related to,advances in technology; impacts related to NiSource's 
aging infrastructure; NiSource's ability to obtain sufficient insurance 
coverage and whether such coverage will protect it against significant losses; 
the success of NiSource'selectric generation strategy; construction risks and 
natural gas costs and supply risks; fluctuations in demand from residential 
and commercial customers; fluctuations in the price of energy commodities and 
related transportation costs or aninability to obtain an adequate, reliable 
and cost-effective fuel supply to meet customer demands; the attraction and 
retention of a qualified, diverse workforce and ability to maintain good labor 
relations; NiSource's ability to manage newinitiatives and organizational 
changes; the actions of activist stockholders; the performance of third-party 
suppliers and service providers; potential cybersecurity-attacks; increased 
requirements and costs related to cybersecurity; any damage toNiSource's 
reputation; any remaining liabilities or impact related to the sale of the 
Massachusetts business; the impacts of natural disasters, potential terrorist 
attacks or other catastrophic events; the physical impacts of climate change 
andthe transition to a lower carbon future; NiSource's ability to manage the 
financial and operational risks related to achieving NiSource's carbon 
emission reduction goals; NiSource's debt obligations; any changes to 
NiSource'scredit rating or the credit rating of certain of its subsidiaries; 
any adverse effects related to NiSource's equity units; adverse economic and 
capital market conditions or increases in interest rates; economic regulation 
and the impact ofregulatory rate reviews; NiSource's ability to obtain 
expected financial or regulatory outcomes; continuing and potential future 
impacts from the
COVID-19
pandemic; economic conditions in certainindustries; the reliability of 
customers and suppliers to fulfill their payment and contractual obligations; 
the ability of NiSource's subsidiaries to generate cash; pension funding 
obligations; potential impairments of goodwill; changes in themethod for 
determining LIBOR and the potential replacement of the LIBOR benchmark 
interest rate; the outcome of legal and regulatory proceedings, investigations, 
incidents, claims and litigation; potential remaining liabilities related to 
theGreater Lawrence, Massachusetts gas distribution incident (the "Greater 
Lawrence Incident"); compliance with the agreements entered into with the U.S. 
Attorney's Office to settle the U.S. Attorney's Office's investigationrelating 
to the Greater Lawrence Incident; compliance with applicable laws, regulations 
and tariffs; compliance with environmental laws and the costs of associated 
liabilities; changes in taxation; and other matters set forth in the 
"RiskFactors" section of NiSource's most recent Annual Report on Form

10-K
and NiSource's subsequent Quarterly Reports on Form
10-Q,
many of which risks arebeyond the control of NiSource. In addition, the 
relative contributions to profitability by each business segment, and the 
assumptions underlying the forward-looking statements relating thereto, may 
change over time.
All forward-looking statements are expressly qualified in their entirety by 
the foregoing cautionary statements. NiSource undertakes no obligation, 
andexpressly disclaims any such obligation, to update or revise any forward-


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looking statements to reflect changed assumptions, the occurrence of 
anticipated or unanticipated events or changes to the future results over time 
or otherwise, except as required by law.
Accordingly, you should not rely on the accuracy of predictions contained in 
forward-looking statements. These statements speak only as of the date of 
thisprospectus, the date of the accompanying prospectus supplement or, in the 
case of documents incorporated by reference, the date of those documents.

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                      WHERE YOU CAN FIND MORE INFORMATION                       
NiSource files annual, quarterly and current reports, proxy statements and 
other information with the SEC. Our SEC filings are available to you at 
theSEC's website at http://www.sec.gov and at our website at www.nisource.com. 
The information contained in, or that can be accessed through, our website is 
not a part of this prospectus or any accompanying prospectus supplement.
The SEC allows us to "incorporate by reference" information into this 
prospectus. This means that we can disclose important information to you 
byreferring you to another document that NiSource has filed separately with 
the SEC. The information incorporated by reference is considered to be part of 
this prospectus. Information that NiSource files with the SEC after the date 
of this prospectuswill automatically modify and supersede the information 
included or incorporated by reference in this prospectus to the extent that 
the subsequently filed information modifies or supersedes the existing 
information. We incorporate by reference thefollowing documents filed with the 
SEC:


 .  our Annual Report on                        
    Form                                        
    10-K                                        
    for the fiscal year ended December 31, 2021;



 .  our Quarterly Reports on Form
    10-Q                         
    for the quarters ended       
    March 31, 2022               
    and                          
    June 30, 2022                
    ;                            



 .  our Current Reports on
    Form 8-K filed        
    on                    
    January               
    27, 2022              
    (as amended by        
    Form 8-K/A filed      
    on                    
    March                 
    16, 2022              
    ),                    
    February              
    18, 2022              
    ,                     
    March                 
    16, 2022              
    ,                     
    April                 
    27, 2022              
    ,                     
    May                   
    25, 2022              
    ,                     
    June                  
    10, 2022              
    ,                     
    August                
    10, 2022              
    ; and                 
    August                
    16, 2022              
    ; and                 



 .  the description of our common stock contained in our
    definitive joint proxy statement/prospectus         
    dated April 24, 2000;                               



 .  the description of (i) the depositary shares, each representing 1/1000th
    ownership interest in a share ofour 6.50% Series B Fixed-Rate Reset     
    Cumulative Redeemable Perpetual Preferred Stock ("Series B Preferred    
    Stock") and a 1/1000th ownership interest in a share of our Series      
    B-1                                                                     
    Preferred Stock("Series                                                 
    B-1                                                                     
    Preferred Stock"), and                                                  
    (ii) the underlying                                                     
    Series B Preferred                                                      
    Stock and Series                                                        
    B-1                                                                     
    Preferred Stock                                                         
    contained or referred                                                   
    to in theregistration                                                   
    statement on                                                            
    Form                                                                    
    8-A                                                                     
    filed under the Securities Exchange                                     
    Act of 1934, as amended, including                                      
    anyamendments or reports filed for the                                  
    purpose of updating any such description;                               



 .  the description of (i) the Series A Corporate Units ("Series A Corporate Units"), eachrepresenting
    a 1/10th undivided beneficial ownership in a share of our Series C Mandatory Convertible          
    Preferred Stock, par value $0.01 per share ("the Series C Preferred Stock"), and (ii) the         
    underlying Series C Preferred Stockcontained or referred to in the registration statement on      
    Form                                                                                              
    8-A/A                                                                                             
    filed under the Securities Exchange                                                               
    Actof 1934, as amended, including any                                                             
    amendments or reports filed for the purpose                                                       
    of updating any such description; and                                                             



 .  any future filings we make with the SEC under Section 13(a), 13(c), 14, or 15(d) of the Securities ExchangeAct of 1934,
    as amended, after the date of this prospectus and before we sell all of the securities offered by this prospectus.     

You mayrequest a copy of any of these filings at no cost by writing to or 
calling us at the following address and telephone number: Corporate Secretary, 
NiSource Inc., 801 East 86th Avenue, Merrillville, Indiana 46410, telephone: 
(877)
647-5990.
We have filed this prospectus with the SEC as part of a registration statement 
on Form
S-3
under the Securities Act of 1933. This prospectus does not contain all of the 
information included in the registration statement. Any statement made in this 
prospectus concerning the contents of any contract,agreement or other document 
is only a summary of the actual document. If we have filed any contract, 
agreement or other document as an exhibit to the

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registration statement, you should read the exhibit for a more complete 
understanding of the document or matter involved. Each statement regarding a 
contract, agreement or other document isqualified in its entirety by reference 
to the actual document.

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                                 NISOURCE INC.                                  
Overview.
NiSource is an energy holding company whose primary subsidiaries are fully 
regulated natural gas and electric utility companiesserving approximately 3.7 
million customers in six states. Our principal subsidiaries include NiSource 
Gas Distribution Group, Inc., a natural gas distribution holding company, and 
Northern Indiana Public Service Company LLC("NIPSCO"), a gas and electric 
company. NiSource derives substantially all of its revenues and earnings from 
the operating results of these rate-regulated businesses. Our primary business 
segments are:


 .  Gas Distribution Operations; and



 .  Electric Operations

Business Strategy.
We focus our business strategy on providing safe and reliable service through 
our core, rate-regulated asset-basedutilities, which generate substantially 
all of our operating income. NiSource's utilities continue to move forward on 
core safety, infrastructure and environmental investment programs supported by 
complementary regulatory and customerinitiatives across all six states in 
which we operate. Our goal is to develop strategies that benefit all 
stakeholders as we (i) embark on long-term infrastructure investment and 
safety programs to better serve our customers, (ii) alignour tariff structures 
with our cost structure, and (iii) address changing customer conservation 
patterns. These strategies are intended to improve reliability and safety, 
enhance customer service, ensure customer affordability and reduceemissions 
while generating sustainable returns.
Gas Distribution Operations.
Our natural gas distribution operations serveapproximately 3.2 million 
customers in six states and operate approximately 54,600 miles of pipeline. 
Through our wholly-owned subsidiary NiSource Gas Distribution Group, Inc., we 
own five distribution subsidiaries that provide natural gas toapproximately 
2.4 million residential, commercial and industrial customers in Ohio, 
Pennsylvania, Virginia, Kentucky and Maryland. We also distribute natural gas 
to approximately 853,000 customers in northern Indiana through our 
wholly-ownedsubsidiary NIPSCO.
Electric Operations.
We generate, transmit and distribute electricity through our subsidiary NIPSCO 
toapproximately 483,000 customers in 20 counties in the northern part of 
Indiana and also engage in wholesale and electric transmission transactions. 
We own and operate sources of generation as well as source power through power 
purchase agreements("PPAs"). We continue to transition our generation 
portfolio to primarily renewable sources. During 2021, we operated Rosewater 
Wind Generation LLC for the full year and Indiana Crossroads Wind Generation 
LLC went into service duringDecember 2021. We also purchased energy generated 
from renewable sources through PPAs. NIPSCO's transmission system, with 
voltages from 69,000 to 765,000 volts, consists of 3,024 circuit miles. NIPSCO 
is interconnected with eight neighboringelectric utilities. During the year 
ended December 31, 2021, NIPSCO generated 47.87% and purchased 52.13% of its 
electric requirements.
Ourexecutive offices are located at 801 East 86th Avenue, Merrillville, 
Indiana 46410, telephone:
(877) 647-5990.

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                                USE OF PROCEEDS                                 
Unless otherwise described in the applicable prospectus supplement, we will 
use the net proceeds from the sale of securities offered by this prospectus 
andany applicable prospectus supplement for general corporate purposes, 
including additions to working capital and repayment of existing indebtedness.


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                          DESCRIPTION OF CAPITAL STOCK                          
General
The authorized capital stock of NiSourceconsists of 620,000,000 shares, of 
which 600,000,000 are common stock, par value $0.01, and 20,000,000 are 
preferred stock, par value $0.01. The board of directors has designated (i) 
400,000 shares of Series A Fixed-Rate Reset Cumulative RedeemablePerpetual 
Preferred Stock ("Series A Preferred Stock"), liquidation preference $1,000 
per share, (ii) 20,000 shares of Series B Preferred Stock, liquidation 
preference $25,000 per share, (iii) 20,000 shares of Series
B-1
Preferred Stock, liquidation preference $0.01 per share and (iv) 862,500 
shares of Series C Preferred Stock, liquidation preference $1,000 per share.

As of October 28, 2022, NiSource had outstanding 406,134,342 shares of its 
common stock, 400,000 shares of Series A Preferred Stock, 20,000 sharesof 
Series B Preferred Stock, 20,000 shares of Series
B-1
Preferred Stock and 862,500 shares of Series C Preferred Stock. The shares of 
Series B Preferred Stock and Series
B-1
Preferred Stock are represented by 20,000,000 depositary shares, each 
representing 1/1000th ownership interest in a share of each of the Series B 
Preferred Stock and the Series
B-1
Preferred Stock. Additional details concerning these depositary shares are 
provided below under "Description of Depositary Shares."
On April 19, 2021, NiSource issued 8,625,000 Series A Equity Units ("Series A 
Equity Units"), initially consisting of Series A Corporate Units,each with a 
stated amount of $100. Each Series A Corporate Unit consists of a forward 
contract to purchase shares of NiSource's common stock in the future and a 10% 
undivided beneficial ownership interest in one share of Series C PreferredStock.

NiSource's Amended and Restated Certificate of Incorporation ("certificate of 
incorporation") also designates 4,000,000 shares ofNiSource's preferred stock 
as Series A Junior Participating Preferred Stock ("Series A Junior Stock"). 
The shares of Series A Junior Stock were reserved for issuance upon the 
exercise of rights under NiSource's former ShareholderRights Plan, which 
formally expired in 2010, and no shares of Series A Junior Stock were ever 
issued.
The below summaries of provisions ofNiSource's common stock and preferred 
stock are not necessarily complete. You are urged to read carefully, and the 
below summaries are qualified in their entirety by, NiSource's certificate of 
incorporation and Amended and Restated
By-Laws
("bylaws") which are filed as exhibits to the registration statement of which 
this prospectus is a part and the certificates of designations for each series 
of NiSource's preferred stock whichhave been or hereafter are filed with the 
SEC.
Anti-Takeover Provisions
NiSource's certificate of incorporation includes provisions that may have the 
effect of deterring hostile takeovers or delaying or preventing changes 
incontrol of NiSource's management. More specifically, the certificate of 
incorporation provides that stockholders may not cumulate their votes and 
stockholder action may be taken only at a duly called meeting and not by 
written consent. Inaddition, NiSource's bylaws contain requirements for 
advance notice of stockholder proposals and director nominations. These and 
other provisions of the certificate of incorporation and bylaws and Delaware 
law could discourage potentialacquisition proposals for NiSource and could 
delay or prevent a change in control of management of NiSource.
Under Delaware law, the approval of theholders of a majority of the 
outstanding shares of a class of NiSource's capital stock would be necessary 
to authorize any amendment to the certificate of incorporation that would 
increase or decrease the aggregate number of authorized sharesof such class of 
capital stock or that would adversely alter or change the powers, preferences 
or special right of such class of capital stock. Further, pursuant to the 
certificates of designations for the Series A Preferred Stock, Series 
BPreferred Stock, Series
B-1
Preferred Stock and Series C Preferred Stock, the holders of
two-thirds
of any series of such preferred stock must approve certain amendmentsto the 
certificate of incorporation that would have a material adverse effect on the 
existing

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preferences, rights, powers, duties or obligations of such series of preferred 
stock. The effect of these provisions may permit the respective holders of 
NiSource's outstanding shares ofcapital stock to block a proposed amendment to 
the certificate of incorporation in connection with a potential acquisition of 
NiSource if such amendment would (i) adversely affect the powers, preferences 
or special rights of NiSource'scommon stock or (ii) have a material adverse 
effect on the existing preferences, rights, powers, duties or obligations of a 
series of NiSource's preferred stock.
NiSource is subject to the provisions of Section 203 of the Delaware General 
Corporation Law ("DGCL") regulating corporate takeovers.Section 203 prevents 
certain Delaware corporations, including those whose securities are listed on 
a national securities exchange, such as the New York Stock Exchange, from 
engaging, under certain circumstances, in a "businesscombination" (as defined 
therein), which includes, among other things, a merger or sale of more than 
10% of the corporation's assets, with any interested stockholder for three 
years following the date that the stockholder became aninterested stockholder. 
An interested stockholder is a stockholder who acquired 15% or more of the 
corporation's outstanding voting stock or an affiliate or associate of such 
person.
Common Stock
NiSource's common stock is listed onthe New York Stock Exchange under the 
symbol "NI." Shares of NiSource's common stock, offered and sold pursuant to 
the registration statement of which this prospectus forms a part, will be 
fully paid and
non-assessable.
Liquidation Rights
In the event of any liquidation, dissolution or winding up of NiSource, 
whether voluntary or involuntary, after payment or provision for payment of 
the debtsand other liabilities of NiSource and the distribution in full of all 
preferential amounts (including any accumulated and unpaid dividends) to which 
the holders of the Series A Preferred Stock, Series B Preferred Stock, Series
B-1
Preferred Stock, Series C Preferred Stock and any other series of preferred 
stock of NiSource hereafter created are entitled, the holders of common stock 
will share ratably in the remaining assets in proportionto the number of 
shares of common stock held by them respectively. A consolidation or merger of 
NiSource with or into any other corporation, or any purchase or redemption of 
shares of any class of NiSource's capital stock, will not be deemed tobe a 
liquidation, dissolution or winding up of NiSource's affairs.
Voting Rights
Except as otherwise required by Delaware law or as otherwise provided in the 
certificate of designations for the Series A Preferred Stock, Series B 
PreferredStock, Series
B-1
Preferred Stock, Series C Preferred Stock or any other series of preferred 
stock of NiSource hereafter created, holders of NiSource's common stock 
exclusively possess voting power forthe election of NiSource's directors and 
all other matters requiring stockholder action. Each holder of common stock, 
if entitled to vote on a matter, is entitled to one vote per share. Holders of 
common stock are not entitled to cumulativevoting rights. Holders of common 
stock will be notified of any stockholders' meeting according to applicable 
law.
For the voting rights of theSeries A Preferred Stock, Series B Preferred 
Stock, Series
B-1
Preferred Stock and Series C Preferred Stock, including the rights of holders 
of Series
B-1
PreferredStock to elect two additional directors to NiSource's board of 
directors upon a Nonpayment Event (as defined below), see "--Series A 
Preferred Stock-- Voting Rights," "--Series B Preferred Stock--VotingRights," 
"--Series
B-1
Preferred Stock--Voting Rights" and "--Series C Preferred Stock--Voting Rights."
Dividend Rights
Holders of common stock will be entitledto receive dividends, when, as and if 
declared by NiSource's board of directors out of legally available funds for 
such purpose in accordance with Delaware law, subject to the powers,

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preferences and rights afforded to the holders of the Series A Preferred 
Stock, Series B Preferred Stock, Series C Preferred Stock and any other series 
of preferred stock of NiSource hereaftercreated. Dividends may be paid in 
cash, capital stock or other property of NiSource.
NiSource is prohibited by the terms of each of its Series APreferred Stock, 
its Series B Preferred Stock and its Series C Preferred Stock from declaring 
or paying dividends on any shares of NiSource's common stock (other than 
dividends payable solely in shares of its common stock) or redeeming,repurchasin
g or acquiring shares of its common stock unless full cumulative dividends 
have been paid with respect to the Series A Preferred Stock, the Series B 
Preferred Stock and the Series C Preferred Stock, respectively, through the 
most recentlycompleted respective dividend periods. See "--Series A Preferred 
Stock--Dividends," "--Series B Preferred Stock--Dividends" and "--Series C 
Preferred Stock--Dividends."
As noted above, NiSource is an energy holding company that derives 
substantially all of its revenues and earnings from the operating results of 
therate-regulated businesses of its subsidiaries. Accordingly, NiSource's 
ability to pay dividends on its capital stock is dependent primarily upon the 
earnings and cash flows of its subsidiaries and the distribution or other 
payment of suchearnings to NiSource. NiSource's subsidiaries are separate and 
distinct legal entities and have no obligation, contingent or otherwise, to 
pay any amounts on the capital stock of NiSource or to make any funds 
available therefor, whether bydividends, loans or other payments.
No Preemptive Rights
Holders of NiSource's common stock are not entitled to, as holders of common 
stock, any preemptive rights with respect to any shares of NiSource'scapital 
stock or any of its securities convertible into or exercisable for its capital 
stock.
Preferred Stock
GENERAL
The board of directors of NiSource can, withoutapproval of stockholders, issue 
one or more series of preferred stock. The board of directors of NiSource can 
also determine the rights, preferences and limitations of each series, 
including any dividend rights, voting rights, conversion rights,redemption 
rights and liquidation preferences, the number of shares constituting each 
series and the terms and conditions of issue. In some cases, the issuance of 
preferred stock could delay a change in control of NiSource and make it harder 
toremove incumbent management. Under certain circumstances, preferred stock 
could also restrict dividend payments to holders of common stock. All 
preferred stock will be fully paid and
non-assessable.
The terms of the preferred stock that NiSource may offer will be established 
by or pursuant to a resolution of the board of directors of NiSource and will 
beissued under certificates of designations or through amendments to the 
certificate of incorporation. If NiSource uses this prospectus to offer 
preferred stock, an accompanying prospectus supplement will describe the 
specific terms of the preferredstock. NiSource will also indicate in the 
prospectus supplement whether the general terms and provisions described in 
this prospectus apply to the preferred stock that NiSource may offer. If there 
are differences between the prospectus supplementrelating to a particular 
series and this prospectus, the prospectus supplement will control.
The following terms of the preferred stock, as applicable,will be set forth in 
a prospectus supplement relating to the preferred stock:


 .  the title and stated value;



 .  the number of shares NiSource is offering;



 .  the liquidation preference per share;


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 .  the purchase price;



 .  the dividend rate, period and payment date, and method of calculation of dividends;



 .  whether dividends will be cumulative or                          
    non-cumulative                                                   
    and, ifcumulative, the date from which dividends will accumulate;



 .  the procedures for any auction and remarketing, if any;



 .  the provisions for a sinking fund, if any;



 .  the provisions for redemption or repurchase, if applicable, and any restrictions
    on NiSource's ability toexercise those redemption and repurchase rights;        



 .  any listing of the preferred stock on any securities exchange or market;



 .  voting rights, if any;



 .  preemptive rights, if any;



 .  restrictions on transfer, sale or other assignment, if any;



 .  whether interests in the preferred stock will be represented by depositary shares;



 .  a discussion of any material or special United States federal income tax considerations applicable to thepreferred stock;



 .  the relative ranking and preferences of the preferred stock as to dividend or liquidation rights;



 .  any limitations on issuance of any class or series of preferred stock ranking senior to or
    on a parity with theseries of preferred stock as to dividend or liquidation rights; and   



 .  any other material specific terms, preferences, rights or limitations of, or restrictions on, the preferredstock.

The terms, if any, on which the preferred stock may be exchanged for or 
converted into shares of common stock or any othersecurity and, if applicable, 
the conversion or exchange price, or how it will be calculated, and the 
conversion or exchange period will be set forth in the applicable prospectus 
supplement.
The preferred stock or any series of preferred stock may be represented, in 
whole or in part, by one or more global certificates, which will have an 
aggregateliquidation preference equal to that of the preferred stock 
represented by the global certificate.
Each global certificate will:


 .  be registered in the name of a depositary or a nominee of the depositary identified in the prospectus supplement;



 .  be deposited with such depositary or nominee or a custodian for the depositary; and



 .  bear a legend regarding the restrictions on exchanges and registration of transfer
    and any other matters as maybe provided for under the certificate of designations.

The designation, powers, preferences, rights, qualifications, limitations 
andrestrictions of each series of NiSource's preferred stock discussed below 
are set forth in a certificate of designations for such series, each forming 
part of the certificate of incorporation. The following briefly summarizes 
certain of thepowers, preferences and rights of each series of preferred stock 
and certain material provisions of the certificate of designations for the 
applicable series but does not contain a complete description of them and is 
qualified in its entirety by theprovisions of the applicable certificate of 
designations. You may obtain a copy of the certificate of designations for 
each series of preferred stock as described under "Where You Can Find More 
Information."

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SERIES A PREFERRED STOCK
A summary of certain powers, preferences, rights, qualifications, limitations 
and restrictions of the Series A Preferred Stock are set forth below.
Ranking
The Series A Preferred Stock ranks, with respectto dividends and distributions 
upon the liquidation, winding up and dissolution, whether voluntary or 
involuntary, of NiSource's affairs (a "Liquidation"): (i) senior to NiSource's 
common stock and any other class or series ofcapital stock that does not 
expressly provide that it ranks on a parity with or senior to the Series A 
Preferred Stock with respect to dividends and such distributions ("Series A 
Junior Securities"); (ii) on a parity with the Series BPreferred Stock, the 
Series
B-1
Preferred Stock (except with respect to dividends, as Series
B-1
Preferred Stock does not entitle its holders to receive dividends),Series C 
Preferred Stock (except with respect to dividends, as Series C Preferred Stock 
does not bear dividends until a successful remarketing of such series) and any 
other class or series of capital stock that does not expressly provide that 
itranks junior or senior to the Series A Preferred Stock with respect to 
dividends and such distributions ("Series A Parity Securities"); and (iii) 
junior to any class or series of capital stock that expressly provides that it 
rankssenior to the Series A Preferred Stock with respect to dividends and such 
distributions ("Series A Senior Securities").
Liquidation Rights
In the event of any Liquidation, the holders of the Series A Preferred Stock 
are entitled to receive out of NiSource's assets available fordistribution to 
stockholders (subject to the rights of holders of Series A Senior Securities 
and Series A Parity Securities in respect of distributions upon Liquidation), 
before any distribution of assets is made to holders of Series A JuniorSecuritie
s, a liquidation preference of $1,000 per share. Any accumulated and unpaid 
dividends on the Series A Preferred Stock and Series A Parity Securities will 
be paid prior to any distributions in Liquidation. A consolidation or merger 
ofNiSource with or into any other entity will not be deemed to be a 
Liquidation.
Voting Rights
The Series A Preferred Stock has no voting, consent or approval rights except 
as set forth below or as otherwise provided by Delaware law. On any 
matterdescribed below in which the holders of the Series A Preferred Stock are 
entitled to vote as a class (whether separately or together with the holders 
of any Series A Parity Securities), such holders will be entitled to one vote 
per share.
Adverse Changes
. Unless NiSource has received the affirmative vote or consent of the holders 
of at least
two-thirds
of the outstanding shares of Series A Preferred Stock, voting as a single 
class, no amendment to the certificate of incorporation may be adopted that 
would have a material adverse effect on theexisting preferences, rights, 
powers, duties or obligations of the Series A Preferred Stock. However, such 
voting requirement shall not be implicated by any amendment to the certificate 
of incorporation (i) relating to the issuance ofadditional shares of preferred 
stock (subject to the voting rights discussed in the following paragraph) and 
(ii) in connection with a merger or another transaction in which the Series A 
Preferred Stock remains outstanding or is exchanged for aseries of preferred 
stock of the surviving entity, in either case, with the terms thereof 
materially unchanged in any respect adverse to the holders of Series A 
Preferred Stock.
Parity and Senior Preferred Stock
. Unless NiSource has received the affirmative vote or consent of the holders 
of at least
two-thirds
of the outstanding shares of Series A Preferred Stock, voting as a class 
together with holders of any Series A Parity Securities and upon which like 
voting rights have been conferred and are exercisable,NiSource may not: (i) 
create or issue any Series A Parity Securities (including any additional 
shares of Series A Preferred Stock, Series B Preferred Stock, Series
B-1
Preferred Stock or Series CPreferred Stock, but excluding

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any
payments-in-kind
on such shares) if the cumulative dividends payable on the outstanding shares 
of Series APreferred Stock (or Series A Parity Securities, if applicable) are 
in arrears; or (ii) create or issue any Series A Senior Securities.
Dividends
Holders of shares of Series A Preferred Stock will be entitled to receive, 
when, as and if declared by NiSource's board of directors out oflegally 
available funds for such purpose, cumulative semi-annual cash dividends 
(subject to the dividend rights of any Series A Senior Securities or Series A 
Parity Securities) at an initial rate of 5.650% per annum of the $1,000 
liquidationpreference per share (equal to $56.50 per share per annum). On and 
after June 15, 2023, dividends will accumulate for each five-year period 
thereafter according to a formula based on the rate of certain U.S. Treasury 
securities with a five yearmaturity plus the applicable margin.
NiSource is prohibited by the terms of the Series A Preferred Stock from 
declaring or paying dividends on any SeriesA Junior Securities (other than a 
dividend payable solely in such Series A Junior Securities) or redeeming, 
repurchasing or acquiring shares of any Series A Junior Securities unless full 
cumulative dividends have been paid on all outstanding sharesof Series A 
Preferred Stock and any Series A Parity Securities entitled to dividends 
through the most recently completed respective dividend periods. In addition, 
NiSource may not repurchase, redeem or otherwise acquire any shares of Series 
APreferred Stock or Series A Parity Securities unless (i) effected pursuant to 
a purchase or exchange offer made on the same relative terms to all holders of 
such shares of preferred stock or (ii) (A) full cumulative dividends have 
beenpaid or provided for on all outstanding shares of such series of preferred 
stock entitled to dividends through the most recently completed respective 
dividend periods and (B) NiSource expects to have sufficient funds to pay in 
full the nextdividend on all such outstanding shares of preferred stock.
Redemption
NiSource may redeem the Series A Preferred Stock, at its option, in whole or 
in part, on June 15, 2023 or on any fifth anniversary thereafter by 
paying$1,000 per share plus an amount equal to all accumulated and unpaid 
dividends thereon to, but not including, the redemption date, whether or not 
declared. In addition, following the occurrence of a "Ratings Event" (as 
defined in thecertificate of designations of the Series A Preferred Stock), 
NiSource may, at its option, redeem the Series A Preferred Stock in whole, but 
not in part, at a redemption price equal to $1,020 (102% of the liquidation 
preference) per share plus anamount equal to all accumulated and unpaid 
dividends thereon to the redemption date, whether or not declared.
No Conversion or Preemptive Rights
The Series A Preferred Stock is not convertible into any other class of 
NiSource's capital stock and the holders of the Series A Preferred Stockdo 
not, as holders of Series A Preferred Stock, have any preemptive rights with 
respect to any shares of NiSource's capital stock or any of its securities 
convertible into or exercisable for its capital stock.
SERIES B PREFERRED STOCK
A summary of certain powers,preferences, rights, qualifications, limitations 
and restrictions of the Series B Preferred Stock are set forth below.
Ranking
The Series B Preferred Stock ranks, with respect to dividends and 
distributions upon Liquidation: (i) senior to NiSource's common stock and any 
otherclass or series of capital stock that does not expressly provide that it 
ranks on a parity with or senior to the Series B Preferred Stock with respect 
to dividends and such distributions

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(the "Series B Junior Securities"); (ii) on a parity with the Series A 
Preferred Stock, the Series
B-1
Preferred Stock (except with respect todividends, as Series
B-1
Preferred Stock does not entitle its holders to receive dividends), Series C 
Preferred Stock (except with respect to dividends, as Series C Preferred Stock 
does not bear dividendsuntil a successful remarketing of such series) and any 
other class or series of capital stock that does not expressly provide that it 
ranks junior or senior to the Series B Preferred Stock with respect to 
dividends and such distributions (the"Series B Parity Securities"); and (iii) 
junior to any class or series of capital stock that expressly provides that it 
ranks senior to the Series B Preferred Stock with respect to dividends and 
such distributions (the "Series BSenior Securities").
Liquidation Rights
In theevent of any Liquidation, the holders of the Series B Preferred Stock 
are entitled to receive out of NiSource's assets available for distribution to 
stockholders (subject to the rights of holders of Series B Senior Securities 
and Series BParity Securities in respect of distributions upon the 
Liquidation) before any distribution of assets is made to holders of Series B 
Junior Securities, a liquidation preference of $25,000 per share. Any 
accumulated and unpaid dividends on the SeriesB Preferred Stock and Series B 
Parity Securities will be paid prior to any distributions in Liquidation. A 
consolidation or merger of NiSource with or into any other entity will not be 
deemed to be a Liquidation.
Voting Rights
The Series B Preferred Stock has novoting, consent or approval rights except 
as set forth below or as otherwise provided by Delaware law. On any matter 
described below in which the holders of the Series B Preferred Stock are 
entitled to vote as a class (whether separately or togetherwith the holders of 
any Series B Parity Securities), such holders will be entitled to twenty-five 
votes per share. The Series B Preferred Stock is paired with the Series
B-1
Preferred Stock and the holders ofthe Series
B-1
Preferred Stock are entitled to the voting rights described in "--Series
B-1
Preferred Stock--Voting Rights."
Adverse Changes
. Unless NiSource has received the affirmative vote or consent of the holders 
of at least
two-thirds
of the outstanding shares of Series B Preferred Stock, voting as a single 
class, no amendment to the certificate of incorporation may be adopted that 
would have a material adverse effect on theexisting preferences, rights, 
powers, duties or obligations of the Series B Preferred Stock. However, such 
voting requirement shall not be implicated by any amendment to the certificate 
of incorporation (i) relating to the issuance ofadditional shares of preferred 
stock (subject to the voting rights discussed in the following paragraph) and 
(ii) in connection with a merger or another transaction in which either the 
Series B Preferred Stock remains outstanding or isexchanged for a series of 
preferred stock of the surviving entity, in either case, with the terms 
thereof materially unchanged in any respect adverse to the holders of Series B 
Preferred Stock.
Parity and Senior Preferred Stock
. Unless NiSource has received the affirmative vote or consent of the holders 
of at least
two-thirds
of the outstanding shares of Series B Preferred Stock, voting as a class 
together with holders of any Series B Parity Securities and upon which like 
voting rights have been conferred and are exercisable,NiSource may not: (i) 
create or issue any Series B Parity Securities (including any additional 
shares of Series A Preferred Stock, Series B Preferred Stock, Series
B-1
Preferred Stock or Series CPreferred Stock, but excluding any
payments-in-kind
on such shares) if the cumulative dividends payable on the outstanding shares 
of Series B Preferred Stock (or SeriesB Parity Securities, if applicable) are 
in arrears; or (ii) create or issue any Series B Senior Securities.
Dividends
Holders of Series B Preferred Stock will be entitled to receive, when, as and 
if declared by NiSource's board of directors out of legally available fundsfor 
such purpose, cumulative quarterly cash dividends (subject to the dividend 
rights of any Series B Parity Securities or Series B Senior Securities) at an 
initial rate of 6.50% per

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annum of the $25,000 liquidation preference per share (equal to $1,625 per 
share per annum). On and after March 15, 2024, dividends will accumulate for 
each five-year period thereafteraccording to a formula based on the rate of 
certain U.S. Treasury securities with a five year maturity plus the applicable 
margin.
NiSource is prohibitedby the terms of the Series B Preferred Stock from 
declaring or paying dividends on any Series B Junior Securities (other than a 
dividend payable solely in such Series B Junior Securities) or redeeming, 
repurchasing or acquiring shares of commonstock or any Series B Junior 
Securities unless full cumulative dividends have been paid on all outstanding 
shares of Series B Preferred Stock and any Series B Parity Securities entitled 
to dividends through the most recently completed respectivedividend periods. 
In addition, NiSource may not repurchase, redeem or otherwise acquire any 
shares of Series B Preferred Stock or Series B Parity Securities, unless (i) 
effected pursuant to a purchase or exchange offer made on the same 
relativeterms to all holders of such shares of preferred stock or (ii) (A) 
full cumulative dividends have been paid or provided for on all outstanding 
shares of such preferred stock entitled to dividends through the most recently 
completed respectivedividend periods and (B) NiSource expects to have 
sufficient funds to pay in full the next dividend on all such outstanding 
shares of preferred stock.
Redemption
NiSource may redeem the Series B PreferredStock, at its option, in whole or in 
part, on March 15, 2024 or on any fifth anniversary thereafter by paying 
$25,000 per share plus an amount equal to all accumulated and unpaid dividends 
thereon to, but not including, the redemption date,whether or not declared. In 
addition, following the occurrence of a "Ratings Event" (as defined in the 
certificate of designations of the Series B Preferred Stock), NiSource may, at 
its option, redeem the Series B Preferred Stock in whole,but not in part, at a 
redemption price equal to $25,500 per share (102% of the liquidation 
preference) plus an amount equal to all accumulated and unpaid dividends 
thereon to the redemption date, whether or not declared.
No Conversion or Preemptive Rights
The Series BPreferred Stock is not convertible into any other class of 
NiSource's capital stock and the holders of the Series B Preferred Stock do 
not, as holders of Series B Preferred Stock, have any preemptive rights with 
respect to any shares ofNiSource's capital stock or any of its securities 
convertible into or exercisable for its capital stock.
SERIES
B-1
PREFERRED STOCK
The Series
B-1
Preferred Stock was issued as adistribution with respect to the Series B 
Preferred Stock in order to enhance the voting rights of the Series B 
Preferred Stock to comply with the New York Stock Exchange's minimum voting 
rights policy. The Series
B-1
Preferred Stock is paired with the Series B Preferred Stock and may not be 
transferred, redeemed or repurchased except in connection with the 
simultaneous transfer, redemption or repurchase of theunderlying Series B 
Preferred Stock, and upon the transfer, redemption or repurchase of the 
underlying Series B Preferred Stock, the same number of shares of Series

B-1
Preferred Stock must simultaneously betransferred (to the same transferee), 
redeemed or repurchased, as the case may be. A summary of certain powers, 
preferences, rights, qualifications, limitations and restrictions of the Series

B-1
PreferredStock are set forth below.
Ranking
The Series
B-1
Preferred Stock ranks, with respect to distributions upon Liquidation: (i) 
senior to NiSource's common stock and any other class or series of capital 
stock that does not expressly provide that it rankson a parity with or senior 
to the Series
B-1
Preferred Stock with respect to such distributions (the "Series
B-1
Junior Securities"); (ii) on a parity with theSeries A Preferred Stock, the 
Series B Preferred Stock, Series C Preferred Stock and any other class or 
series of capital stock that does not expressly provide that it ranks junior 
or senior to

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the Series
B-1
Preferred Stock with respect to such distributions (the "Series
B-1
Parity Securities");and (iii) junior to any class or series of capital stock 
that expressly provides that it ranks senior to the Series
B-1
Preferred Stock with respect to such distributions (the "Series
B-1
Senior Securities").
Liquidation Rights
In the event of any Liquidation, the holders of the Series
B-1
Preferred Stock are entitled to receive out ofNiSource's assets available for 
distribution to stockholders (subject to the rights of holders of Series
B-1
Senior Securities and Series
B-1
Parity Securities inrespect of distributions upon Liquidation), before any 
distribution of assets is made to holders of Series
B-1
Junior Securities, a liquidation preference of $0.01 per share. Any 
accumulated and unpaiddividends on the Series
B-1
Parity Securities will be paid prior to any distributions in Liquidation. A 
consolidation or merger of NiSource with or into any other entity will not be 
deemed to be a Liquidation.
Voting Rights
The Series
B-1
Preferred Stock has no voting, consent or approval rights except as set forth 
below or as otherwise provided by Delaware law. On any matter described below 
in which the holders of the Series
B-1 Preferred
Stock are entitled to vote as a class (whether separately or together with the 
holders of any Series
B-1
Parity Securities), such holders will be entitledto twenty-five votes per share.
Adverse Changes
. Unless NiSource has received the affirmative vote or consent of the holders 
of at least
two-thirds
of the outstanding shares of Series
B-1
Preferred Stock, voting as a single class, no amendment to the certificate of 
incorporation may be adopted that would have amaterial adverse effect on the 
existing preferences, rights, powers, duties or obligations of the Series
B-1
Preferred Stock. However, such voting requirement shall not be implicated by 
any amendment to thecertificate of incorporation (i) relating to the issuance 
of additional shares of preferred stock and (ii) in connection with a merger 
or another transaction in which either the Series
B-1
PreferredStock remains outstanding or is exchanged for a series of preferred 
stock of the surviving entity, in either case, with the terms thereof 
materially unchanged in any respect adverse to the holders of Series
B-1
Preferred Stock.
Election of Directors upon Nonpayment Events
. If and whenever dividends on any sharesof Series B Preferred Stock shall not 
have been declared and paid for at least six dividend periods, whether or not 
consecutive (a "Nonpayment Event"), the number of directors then constituting 
NiSource's board of directors willautomatically be increased by two and the 
holders of Series
B-1
Preferred Stock, voting as a class together with the holders of any 
outstanding Series
B-1
ParitySecurities having like voting rights that are exercisable at that time 
("Director Voting Preferred Stock"), shall be entitled to elect the two 
additional directors (the "Preferred Stock Directors"), provided that (i) 
suchelection does not violate the corporate governance requirements of the New 
York Stock Exchange that companies must have a majority of independent 
directors and (ii) any such director is not prohibited or disqualified from 
serving as a directorof NiSource by any applicable law. The Preferred Stock 
Directors shall each be entitled to one vote per director on any matter before 
NiSource's board of directors for a vote.
When all accumulated and unpaid dividends on the Series B Preferred Stock have 
been paid in full, then (a) the right of the holders of Series
B-1
Preferred Stock to elect the Preferred Stock Directors shall cease, (b) the 
terms of office of the Preferred Stock Directors will automatically terminate 
and (c) the number of directors constitutingNiSource's board of directors will 
automatically decrease by two. Any Preferred Stock Director may be removed at 
any time without cause by holders of a majority of the outstanding shares of 
the Series
B-1
Preferred Stock and Director Voting Preferred Stock (voting together as a 
single class). So long as a Nonpayment Event continues, any vacancy in the 
office of a Preferred Stock Director (after the initial election of Preferred 
Stock Directors) maybe filled by the written consent of the Preferred Stock 
Director remaining in office (if any), in lieu of a vote by the Series
B-1
Preferred Stock and Director Voting Preferred Stock (voting together as 
asingle class).

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Dividends
Holders of Series
B-1
Preferred Stock are not entitled to receive dividends.
Redemption
The shares of Series
B-1
Preferred Stock are subject to mandatory redemption, in whole or in part, at a 
redemption price of $0.01 per share upon the redemption of the underlying 
shares of Series B Preferred Stock with which such sharesof Series
B-1
Preferred Stock are paired. The shares of Series
B-1
Preferred Stock are not otherwise subject to redemption.
No Conversion or Preemptive Rights
The Series
B-1
Preferred Stock is not convertible into any other class of NiSource's capital 
stock and the holders of the Series
B-1
Preferred Stock do not, as holders of Series
B-1
Preferred Stock, have any preemptive rights with respect to any shares of 
NiSource's capital stock or any of its securities convertible into or 
exercisable for its capital stock.
SERIES C PREFERRED STOCK
A summary of certain powers,preferences, rights, qualifications, limitations 
and restrictions of the Series C Preferred Stock are set forth below.
Ranking
The Series C Preferred Stock ranks, with respect to dividends and 
distributions upon Liquidation: (i) senior to NiSource's common stock and any 
otherclass or series of capital stock that does not expressly provide that it 
ranks on a parity with or senior to the Series C Preferred Stock with respect 
to dividend rights or distribution rights (the "Series C Junior Securities"); 
(ii) on aparity with the Series A Preferred Stock, the Series B Preferred 
Stock, the Series
B-1
Preferred Stock (except with respect to dividends, as Series
B-1
Preferred Stockdoes not entitle its holders to receive dividends) and any 
other class or series of capital stock that expressly provides that it ranks 
on a parity with the Series C Preferred Stock with respect to dividend rights 
or distribution rights (the"Series C Parity Securities"); and (iii) junior to 
any class or series of capital stock that expressly provides that it ranks 
senior to the Series C Preferred Stock with respect to dividend rights or 
distribution rights (the"Series C Senior Securities").
Liquidation Rights
In the event of any Liquidation, the holders of the Series C Preferred Stock 
are entitled to receive out of NiSource's assets available for distributionto 
stockholders (subject to the rights of holders of Series C Senior Securities 
and Series C Parity Securities in respect of distributions upon the 
Liquidation) before any payment or distribution of assets is made to holders 
of Series C JuniorSecurities, a liquidation preference of $1,000 per share. 
Any accumulated and unpaid dividends on the Series C Preferred Stock and 
Series C Parity Securities will be paid prior to any distributions in 
Liquidation. A consolidation or merger ofNiSource with or into any other 
entity will not be deemed to be a Liquidation.
Voting Rights
On any matter described below in which the holders of the Series C Preferred 
Stock are entitled to vote as a class with Series C Parity Securities, each 
shareof Series C Preferred Stock and each share of Series C Parity Securities 
s will be entitled to a number of votes in proportion to the liquidation 
preference then-applicable to such shares.

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Unless NiSource has received the affirmative vote or consent of the holders of 
at least
two-thirds
of the outstanding shares of Series C Preferred Stock and all other series of 
Series C Parity Securities, voting as a single class, NiSource may not (i) 
authorize, create or issue, or increase thenumber of authorized or issued 
shares of, any class or series of Series C Senior Securities, or reclassify 
any capital stock of NiSource into any such shares of Series C Senior 
Securities, or create, authorize or issue any obligation or securityconvertible 
into or evidencing the right to purchase any such shares of Series C Senior 
Securities; (ii) amend the certificate of incorporation so as to materially 
and adversely affect any right, preference, privilege or voting power of 
theSeries C Preferred Stock or (iii) consummate a reorganization or 
reclassification involving the Series C Preferred Stock or a merger or 
consolidation of NiSource with another entity, unless the Series C Preferred 
Stock remains outstanding or isexchanged for a series of preferred stock of 
the surviving entity, in either case, with the rights, preferences, privileges 
and voting powers, taken as a whole, no less favorable to the holders of the 
Series C Preferred Stock.
Dividends
Shares of Series C Preferred Stock do notinitially bear any dividends. 
Following a successful remarketing of the Series C Preferred Stock, dividends 
may become payable when, as and if declared by NiSource's board of directors 
out of legally available funds for such purpose.
NiSource is prohibited by the terms of the Series C Preferred Stock from 
declaring or paying dividends on any Series C Parity Securities or Series C 
JuniorSecurities or redeeming, repurchasing or acquiring shares of any Series 
C Parity Securities or Series C Junior Securities unless (i) full cumulative 
dividends have been paid on all outstanding shares of Series C Preferred Stock 
and any Series CParity Securities entitled to dividends for all past dividend 
periods or (ii) a number of shares of common stock sufficient for the payment 
of such dividends is set apart for payment.
No Redemption or Preemptive Rights
Shares of the SeriesC Preferred Stock are not redeemable and have no 
preemptive rights with respect to any shares of NiSource's capital stock or 
any of its securities convertible into or exercisable for its capital stock.

Conversion Rights
Each share of Series C PreferredStock, unless previously converted, will 
automatically convert into shares of NiSource's common stock on the mandatory 
conversion date, which is expected to be on or about March 1, 2024 ("Mandatory 
Conversion Date"). Theconversion rate will be determined based on the 
volume-weighted average share price of NiSource's common stock near the 
conversion date. If no successful remarketing of the Series C Preferred Stock 
has previously occurred (a "RemarketingFailure"), effective as of December 1, 
2023, each share of Series C Preferred Stock will be automatically transferred 
to NiSource on the Mandatory Conversion Date without any payment of cash or 
shares of NiSource's common stock.
Prior to December 1, 2023, shares of the Series C Preferred Stock may be 
converted only upon the occurrence of certain fundamental change events. On 
orafter December 1, 2023, unless a Remarketing Failure has occurred, holders 
of Series C Preferred Stock will have the right to convert the Series C 
Preferred Stock into shares of common stock prior to the Mandatory Conversion 
Date.

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                        DESCRIPTION OF DEPOSITARY SHARES                        
NiSource may issue depositary shares representing fractional interests in 
shares of our preferred stock of any series. The following description sets 
forthcertain general terms and provisions of the depositary shares to which 
any prospectus supplement may relate. The particular terms of the depositary 
shares to which any prospectus supplement may relate and the extent, if any, 
to which the generalterms and provisions may apply to the depositary shares so 
offered will be described in the applicable prospectus supplement. To the 
extent that any particular terms of the depositary shares, deposit agreements 
and depositary receipts described in aprospectus supplement differ from any of 
the terms described below, then the terms described below will be deemed to 
have been superseded by that prospectus supplement. You should read the 
applicable deposit agreement and depositary receipts foradditional information 
before you decide whether to purchase any of NiSource's depositary shares.
In connection with the issuance of any depositaryshares, NiSource will enter 
into a deposit agreement with a bank or trust company, as depositary, which 
will be named in the applicable prospectus supplement. Depositary shares will 
be evidenced by depositary receipts issued pursuant to the relateddeposit 
agreement. Immediately following our issuance of the security related to the 
depositary shares, NiSource will deposit the shares of our preferred stock 
with the relevant depositary and will cause the depositary to issue, on our 
behalf, therelated depositary receipts. Subject to the terms of the deposit 
agreement, each owner of a depositary receipt will be entitled, in proportion 
to the fractional interest in the share of preferred stock represented by the 
related depositary share, toall the rights, preferences and privileges of, and 
will be subject to all of the limitations and restrictions on, the preferred 
stock represented by the depositary receipt (including, if applicable, 
dividend, voting, conversion, exchange,redemption, sinking fund, subscription 
and liquidation rights). The applicable prospectus supplement will describe 
the terms of the depositary shares offered thereby.
Depositary Shares representing Series B Preferred Stock and Series
B-1
Preferred Stock
NiSource has issued and outstanding 20,000,000 depositary shares (the 
"Depositary Shares"), each representing a 1/1,000th ownership interest in 
ashare of its Series B Preferred Stock and a 1/1,000th ownership interest in a 
share of its Series
B-1
Preferred Stock. The Depositary Shares are evidenced by depositary receipts 
issued pursuant to a depositagreement (the "Deposit Agreement") among 
NiSource, Computershare Inc. and Computershare Trust Company, N.A., acting 
jointly as the depositary (the "depositary"), and the holders from time to 
time of the depositary receiptsevidencing the Depositary Shares. This 
description of the Depositary Shares is qualified in its entirety by the 
provisions of the respective certificates of designations of the Series B 
Preferred Stock and Series
B-1
Preferred Stock and the Deposit Agreement.
Dividends and Other Distributions
The depositary will distribute any cash dividends or other cash distributions 
received in respect of the deposited Series B Preferred Stock and Series
B-1
Preferred Stock to the record holders of Depositary Shares relating to the 
underlying Series B Preferred Stock and Series
B-1
Preferred Stock in proportion to the numberof Depositary Shares held by the 
holders. The depositary will distribute any property received by it other than 
cash to the record holders of Depositary Shares entitled to those 
distributions, unless it determines, in consultation with NiSource,that the 
distribution cannot be made proportionally among those holders or that it is 
not feasible to make a distribution. In that event, the depositary may, with 
NiSource's approval, sell the property (at a public or private sale) 
anddistribute the net proceeds from the sale to the holders of the Depositary 
Shares in proportion to the number of Depositary Shares they hold.
Redemption of Depositary Shares
If NiSource redeems theSeries B Preferred Stock and Series
B-1
Preferred Stock represented by the Depositary Shares, a proportionate number 
of Depositary Shares will be redeemed from the proceeds received by the

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depositary resulting from the redemption of the Series B Preferred Stock and 
Series
B-1
Preferred Stock held by the depositary. The redemption price perdepositary 
share will be equal to 1/1,000th of the redemption price per share payable 
with respect to each of the Series B Preferred Stock and Series
B-1
Preferred Stock. Whenever NiSource redeems shares ofSeries B Preferred Stock 
and Series
B-1
Preferred Stock held by the depositary, the depositary will redeem, as of the 
same redemption date, the number of Depositary Shares representing shares of 
Series BPreferred Stock and Series
B-1
Preferred Stock so redeemed.
Voting the Preferred Stock
When the depositary receives notice of any meeting at which the holders of the 
Series B Preferred Stock and/or Series
B-1
Preferred Stock are entitled to vote, the depositary will mail, or otherwise 
transmit by an authorized method, the information contained in the notice to 
the record holders of the Depositary Shares. Eachrecord holder of the 
Depositary Shares on the record date, which will be the same date as the 
record date for the Series B Preferred Stock and/or Series
B-1
Preferred Stock, may instruct the depositary to votethe amount of the Series B 
Preferred Stock and/or Series
B-1
Preferred Stock entitled to vote represented by the holder's Depositary 
Shares. To the extent practicable, the depositary will vote the numberof 
shares entitled to vote represented by such Depositary Shares in accordance 
with the instructions it receives. If the depositary does not receive specific 
instructions from the holders of any Depositary Shares representing the Series 
B PreferredStock and/or Series
B-1
Preferred Stock entitled to vote, it will abstain from voting the number of 
shares of Series B Preferred Stock and/or Series
B-1
Preferred Stockrepresented thereby.
Amendment and Termination of the Depositary Agreement
The form of depositary receipt evidencing the Depositary Shares and any 
provision of the Depositary Agreement may be amended by agreement between 
thedepositary and NiSource. However, any amendment that materially and 
adversely alters the rights of the holders of Depositary Shares will not be 
effective unless such amendment has been approved by the holders of at least a 
majority of the DepositaryShares then outstanding. The Depositary Agreement 
may be terminated by NiSource upon sixty days' prior written notice to the 
depositary or by the depositary upon mailing notice to NiSource and the 
holders of all Depositary Shares thenoutstanding if at any time sixty days 
have expired after the depositary provided written notice to NiSource of its 
resignation and a successor depositary has not been appointed. The Depositary 
Agreement shall automatically terminate after there hasbeen a final 
distribution in respect of the Series B Preferred Stock and Series
B-1
Preferred Stock in connection with NiSource's liquidation, dissolution or 
winding and such distribution has beendistributed to the holders of Depositary 
Shares.

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                       DESCRIPTION OF THE DEBT SECURITIES                       
NiSource may issue debt securities, which will be designated as either senior 
debt securities or subordinated debt securities, in one or more series from 
timeto time. Unless the context requires otherwise, references to "debt 
securities" refer collectively to both the senior debt securities and the 
subordinated debt securities. The senior debt securities will be issued under 
an indenture, datedas of November 14, 2000, as amended and supplemented, 
between NiSource (as successor to NiSource Finance Corp.) and The Bank of New 
York Mellon (as successor in interest to JPMorgan Chase Bank, N.A., formerly 
known as The Chase Manhattan Bank),as trustee. We refer to this indenture as 
the "Senior Indenture." The subordinated debt securities will be issued under 
a separate indenture to be entered into at a future date between NiSource and 
The Bank of New York Mellon, as trustee.We refer to this indenture as the 
"Subordinated Indenture" and, together with the Senior Indenture, as the 
"Indentures." The Bank of New York Mellon, as trustee under the Indentures, 
will act as indenture trustee for the purposesof the Trust Indenture Act. We 
have filed the Indentures as exhibits to the registration statement of which 
this prospectus is a part.
This sectionbriefly summarizes some of the terms of the debt securities and 
the Indentures. This section does not contain a complete description of the 
debt securities or the Indentures. The description of the debt securities is 
qualified in its entirety by theprovisions of the Indentures. References to 
section numbers in this description of the debt securities, unless otherwise 
indicated, are references to section numbers of each Indenture.
General
The Indentures do not limit the amount of debtsecurities that may be issued. 
Each Indenture provides for the issuance of debt securities from time to time 
in one or more series. The terms of each series of debt securities may be 
established in a supplemental indenture or in resolutions ofNiSource's board 
of directors or a committee of the board.
The senior debt securities:


 .  are direct senior unsecured obligations of NiSource; and



 .  are equal in right of payment to any other unsecured and unsubordinated debt of NiSource.

The subordinated debt securities:


 .  are direct subordinated unsecured obligations of NiSource; and



 .  are subordinated to the prior payment in full of the senior debt securities of NiSource.

NiSource is a holding company with no independent business operations or 
source of income of its own. It conducts substantially all of its operations 
throughits subsidiaries and, as a result, NiSource depends on the earnings and 
cash flow of, and dividends or distributions from, its subsidiaries to provide 
the funds necessary to meet its debt and contractual obligations. 
Substantially all ofNiSource's consolidated assets, earnings and cash flow is 
derived from the operation of its regulated utility subsidiaries, whose legal 
authority to pay dividends or make other distributions to NiSource is subject 
to regulatory restrictions.
NiSource's holding company status also means that its right to participate in 
any distribution of the assets of any of its subsidiaries uponliquidation, 
reorganization or otherwise is subject to the prior claims of the creditors of 
each of the subsidiaries (except to the extent that the claims of NiSource 
itself as a creditor of a subsidiary may be recognized). Since this is true 
forNiSource, it is also true for the creditors of NiSource (including the 
holders of the debt securities).
If NiSource uses this prospectus to offer debtsecurities, an accompanying 
prospectus supplement will describe the following terms of the debt securities 
being offered, to the extent applicable:


 .  the title and type of the debt securities;


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 .  any limit on the aggregate principal amount;



 .  the date or dates on which NiSource will pay principal;



 .  the right, if any, to extend the date or dates on which NiSource will pay principal;



 .  the interest rates or the method of determining them and the date interest begins to accrue;



 .  the interest payment dates and the regular record dates for any interest payment dates;



 .  the right, if any, to extend the interest payment periods and the duration of any extension;



 .  the place or places where NiSource will pay principal and interest;



 .  the terms and conditions of any optional redemption, including the date after
    which, and the price or prices atwhich, NiSource may redeem securities;      



 .  the terms and conditions of any optional purchase or repayment, including the date after which, and the price orprices
    at which, holders may require NiSource to purchase, or a third party may require holders to sell, securities;         



 .  the terms and conditions of any mandatory or optional sinking fund redemption, including
    the date after which,and the price or prices at which, NiSource may redeem securities;  



 .  whether bearer securities will be issued;



 .  the denominations in which NiSource will issue securities;



 .  the currency or currencies in which NiSource will pay principal and interest;



 .  any index or indices used to determine the amount of payments;



 .  the portion of principal payable on declaration of acceleration of maturity;



 .  any additional events of default or covenants of NiSource applicable to the debt securities;



 .  whether NiSource will pay additional amounts in respect of taxes and similar charges on debt securities held by
    aUnited States alien and whether NiSource may redeem those debt securities rather than pay additional amounts; 



 .  whether NiSource will issue the debt securities in whole or in part        
    in global form and, in such case, thedepositary for such global            
    securities and the circumstances under which beneficial owners of interests
    in the global security may exchange such interest for securities;          



 .  the date or dates after which holders may convert the securities into shares 
    of NiSource common stock orpreferred stock and the terms for that conversion;



 .  particular terms of subordination with respect to subordinated debt securities; and



 .  any other terms of the securities consistent with the provisions of the applicable Indenture.

The Indentures do not give holders of debt securities protection in the event 
of a highly leveraged transaction or other transactioninvolving NiSource. The 
Indentures also do not limit the ability of NiSource to incur indebtedness or 
to declare or pay dividends on its capital stock.
Conversion Rights
The terms, if any, on which a seriesof debt securities may be exchanged for or 
converted into shares of common stock or preferred stock of NiSource will be 
set forth in the applicable prospectus supplement.
Denomination, Registration and Transfer
NiSource mayissue the debt securities as registered securities in certificated 
form or as global securities as described under the heading "Book-Entry 
Issuance." Unless otherwise specified in the applicable prospectus

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supplement, NiSource will issue registered debt securities in minimum 
denominations of $1,000 or any integral multiple thereof. (See Section 302.)

If NiSource issues the debt securities as registered securities, NiSource will 
keep at one of its offices or agencies a register in which it will provide 
forthe registration and transfer of the debt securities. NiSource will appoint 
that office or agency the security registrar for the purpose of registering 
and transferring the debt securities.
The holder of any registered debt security may exchange the debt security for 
registered debt securities of the same series having the same stated 
maturitydate and original issue date, in any authorized denominations, in like 
tenor and in the same aggregate principal amount. The holder may exchange 
those debt securities by surrendering them in a place of payment maintained 
for this purpose at theoffice or agency NiSource has appointed as securities 
registrar. Holders may present the debt securities for exchange or 
registration of transfer, duly endorsed or accompanied by a duly executed 
written instrument of transfer satisfactory toNiSource and the securities 
registrar. No service charge will apply to any exchange or registration of 
transfer, but NiSource may require payment of any taxes and other governmental 
charges as described in the applicable Indenture. (SeeSection 305.)
If debt securities of any series are redeemed, NiSource will not be required 
to issue, register transfer of or exchange any debtsecurities of that series 
during the 15 business day period immediately preceding the day the relevant 
notice of redemption is given. That notice will identify the serial numbers of 
the debt securities being redeemed. After notice is given, NiSourcewill not be 
required to issue, register the transfer of or exchange any debt securities 
that have been selected to be either partially or fully redeemed, except the 
unredeemed portion of any debt security being partially redeemed. (SeeSection 
305.)
Payment and Paying Agents
Unlessotherwise indicated in the applicable prospectus supplement, on each 
interest payment date, NiSource will pay interest on each debt security to the 
person in whose name that debt security is registered as of the close of 
business on the record daterelating to that interest payment date. If NiSource 
defaults in the payment of interest on any debt security, it may pay that 
defaulted interest to the registered owner of that debt security:


 .  as of the close of business on a date that the indenture trustee selects, which may not be more than
    15 daysor less than 10 days before the date NiSource proposes to pay the defaulted interest, or     



 .  in any other lawful manner that does not violate the requirements of any securities exchange
    on which that debtsecurity is listed and that the indenture trustee deems practicable.      

(See Section 307.)
Unless otherwise indicated in the applicable prospectus supplement, NiSource 
will pay the principal of and any premium or interest on the debt securities 
whenthey are presented at the office of the indenture trustee, as paying 
agent. NiSource may change the place of payment of the debt securities, 
appoint one or more additional paying agents, and remove any paying agent.

Redemption
The applicable prospectus supplement willcontain the specific terms on which 
NiSource may redeem a series of debt securities prior to its stated maturity. 
NiSource will send a notice of redemption to holders at least 30 days but not 
more than 60 days prior to the redemption date. Thenotice will state:


 .  the redemption date;



 .  the redemption price;



 .  if less than all of the debt securities of the series are being redeemed, the particular debt
    securities to beredeemed (and the principal amounts, in the case of a partial redemption);   


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 .  that on the redemption date, the redemption price will become due and payable
    and any applicable interest willcease to accrue on and after that date;      



 .  the place or places of payment; and



 .  whether the redemption is for a sinking fund.

(See Section 1104.)
On or before any redemption date,NiSource will deposit an amount of money with 
the indenture trustee or with a paying agent sufficient to pay the redemption 
price and any accrued interest, if any, on the debt securities to be redeemed. 
(See Section 1105.)
If NiSource is redeeming less than all the debt securities, the indenture 
trustee will select the debt securities to be redeemed using a method it 
considersfair and appropriate. After the redemption date, holders of redeemed 
debt securities will have no rights with respect to the debt securities except 
the right to receive the redemption price and any unpaid interest to the 
redemption date. (SeeSections 1103 and 1106.)
Consolidation, Merger, Conveyance, Transfer or Lease
NiSource shall not consolidate with or merge into any other person or convey, 
transfer or lease substantially all of its assets or properties to any 
personunless:


 .  that person is organized under the laws of the United States or any state thereof;



 .  that person assumes NiSource's obligations under the Indentures;



 .  after giving effect to the transaction, NiSource is not in default under the Indentures and no event which,
    afternotice or lapse of time, would become an event of default, shall have happened and be continuing;     



 .  NiSource delivers to the indenture trustee an officer's certificate and an opinion
    of counsel to the effectthat the transaction complies with the Indentures.        

(See Section 801.)
Limitation on Liens
As long as any debt securitiesremain outstanding, neither NiSource nor any 
subsidiary of NiSource, other than a utility, may issue, assume or guarantee 
any debt for money borrowed secured by any mortgage, security interest, 
pledge, lien or other encumbrance on any property ownedby NiSource or that 
subsidiary, except intercompany indebtedness, without also securing the debt 
securities (together with any other indebtedness of or guaranteed by NiSource 
or such subsidiary ranking equally with such debt securities) equally 
andratably with (or prior to) the new debt, unless the total amount of all of 
the secured debt would not exceed 10% of the consolidated net tangible assets 
of NiSource and its subsidiaries (other than utilities).
The lien limitations do not apply to NiSource's and any subsidiary's ability 
to do the following:


 .  create mortgages on any property and on certain improvements and accessions on such  
    property acquired,constructed or improved after the date of the applicable Indenture;



 .  assume existing mortgages on any property or indebtedness of an entity which
    is merged with or into, orconsolidated with NiSource or any subsidiary;     



 .  assume existing mortgages on any property or indebtedness of an entity existing at the time it becomes asubsidiary;



 .  create mortgages to secure debt of a subsidiary to NiSource or to another subsidiary (other than a utility);


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 .  create mortgages in favor of governmental entities to secure payment under a contract or statute or mortgages tosecure the
    financing of constructing or improving property, including mortgages for pollution control or industrial revenue bonds;   



 .  create mortgages to secure debt of NiSource or its subsidiaries maturing
    within 12 months and created in theordinary course of business;         



 .  create mortgages to secure the cost of exploration, drilling or development of natural gas, oil or other mineralproperty;



 .  continue mortgages existing on the date of the applicable Indenture; and



 .  create mortgages to extend, renew or replace indebtedness secured by    
    any mortgage referred to above provided thatthe principal amount of     
    indebtedness and the property securing the indebtedness shall not exceed
    the amount secured by the mortgage being extended, renewed or replaced. 

(See Section 1008.)
Events of Default
The Indentures provide, with respect to any outstanding series of debt 
securities, that any of the following events constitutes an "Event ofDefault":



 .  NiSource defaults in the payment of any interest upon any debt security of    
    that series that becomes due andpayable and the default continues for 60 days;



 .  NiSource defaults in the payment of principal of or any premium on any debt security of that series when due 
    atits maturity, on redemption, by declaration or otherwise and the default continues for three business days;



 .  NiSource defaults in the deposit of any sinking fund payment when due and the default continues for threebusiness days;



 .  NiSource defaults in the performance of or breaches any covenant or warranty
    in the applicable Indenture for 90days after written notice to NiSource     
    from the indenture trustee or to NiSource and the indenture trustee from the
    holders of at least 33% of the outstanding debt securities of that series;  



 .  NiSource defaults under any bond, debenture, note or other evidence of indebtedness for money 
    borrowed by it ordefaults under any mortgage, indenture or instrument under which there       
    may be issued, secured or evidenced indebtedness for money borrowed constituting a failure    
    to pay in excess of $50,000,000 of the principal or interest when due and payable, and,in     
    the event such indebtedness has become due as the result of an acceleration, such acceleration
    is not rescinded or annulled or such indebtedness is not paid within 60 days after            
    written notice to NiSource from the indenture trustee or to NiSourceand the indenture trustee 
    from the holders of at least 33% of the outstanding debt securities of that series; or        



 .  certain events of bankruptcy, insolvency or reorganization of NiSource.

(See Section 501.)
If an Event of Default occurs withrespect to debt securities of a particular 
series, the indenture trustee or the holders of 33% in principal amount of the 
outstanding debt securities of that series may declare the debt securities of 
that series due and payable immediately. (SeeSection 502.)
The holders of a majority in principal amount of the outstanding debt 
securities of a particular series will have the right to directthe time, 
method and place of conducting any proceeding for any remedy available to the 
indenture trustee under the applicable Indenture, or exercising any trust or 
power conferred on the indenture trustee with respect to the debt securities 
of thatseries. The indenture trustee may refuse to follow directions that

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are in conflict with any rule of law or the applicable Indenture, that expose 
the indenture trustee to personal liability or that are unduly prejudicial to 
other holders. The indenture trusteemay take any other action it deems proper 
that is not inconsistent with those directions. (See Section 512.)
The holders of a majority in principalamount of the outstanding debt 
securities of any series may waive any past default under the applicable 
Indenture and its consequences, except a default:


 .  in respect of a payment of principal of, or premium, if any, or interest on any debt security; or



 .  in respect of a covenant or provision that cannot be modified or amended
    without the consent of the holder ofeach affected debt security.        

(See Section 513.)
At any time after the holders of the debt securities of a series declare that 
the debt securities of that series are due and immediately payable, holders of 
amajority in principal amount of the outstanding debt securities of that 
series may rescind and cancel the declaration and its consequences: (1) before 
the indenture trustee has obtained a judgment or decree for money, (2) if all 
events ofdefault (other than the
non-payment
of principal which has become due solely by reason of the declaration) have 
been waived or cured, and (3) if NiSource has paid or deposited with the 
indenture trusteean amount sufficient to pay:


 .  all overdue interest on the debt securities of that series;



 .  the principal of, and premium, if any, or interest on any debt securities of that
    series which are due other thanby reason of the declaration of acceleration;     



 .  interest on overdue interest (if lawful); and



 .  sums paid or advanced by and amounts due to the indenture trustee under the applicable Indenture.

(See Section 502.)
Modificationof Indentures
NiSource and the indenture trustee may modify or amend one or both of the 
Indentures, without the consent of the holders of any debtsecurities, for any 
of the following purposes:


 .  to evidence the succession of another person as obligor under the Indenture;



 .  to add to NiSource's covenants or to surrender any right or power conferred on NiSource under the Indenture;



 .  to add events of default;



 .  to add or change any provisions of the Indenture to provide that bearer    
    securities may be registrable as toprincipal, to change or eliminate any   
    restrictions on the payment of principal or premium on registered          
    securities or of principal or premium or any interest on bearer securities,
    to permit registered securities to be exchanged for bearer securitiesor    
    to permit the issuance of securities in uncertificated form (so long as    
    the modification or amendment does not adversely affect the interest of    
    the holders of debt securities of any series in any material respect);     



 .  to change or eliminate any provisions of the Indenture (so long as there are
    no outstanding debt securitiesentitled to the benefit of the provision);    



 .  to secure the debt securities;



 .  to establish the form or terms of debt securities of any series;



 .  to evidence and provide for the acceptance of appointment by a successor indenture trustee or    
    facilitate theadministration of the trust under the Indenture by more than one indenture trustee;


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 .  to cure any ambiguity, defect or inconsistency in the Indenture (so long as the cure or modification does    
    notadversely affect the interest of the holders of debt securities of any series in any material respect); or



 .  to conform the Indenture to any amendment of the Trust Indenture Act.

(See Section 901.)
Each Indenture provides that we andthe indenture trustee may amend the 
Indenture or the debt securities with the consent of the holders of a majority 
in principal amount of the then outstanding debt securities of each series 
affected by the amendment voting as one class. However,without the consent of 
each holder of any outstanding debt securities affected, an amendment or 
modification may not, among other things:


 .  change the stated maturity of the principal or interest on any debt security;



 .  reduce the principal amount of, rate of interest on, or premium payable upon the redemption of any debt security;



 .  change the method of calculating the rate of interest on any debt security;



 .  change any obligation of NiSource to pay additional amounts in respect of any debt security;



 .  reduce the principal amount of a discount security that would be payable upon acceleration of its maturity;



 .  change the place or currency of payment of principal of, or any premium or interest on, any debt security;



 .  impair a holder's right to institute suit for the enforcement of any payment
    after the stated maturity orafter any redemption date or repayment date;    



 .  reduce the percentage in principal amount of outstanding debt securities, the consent of whose holders
    isnecessary to modify or amend the Indenture or to consent to any waiver under the Indenture;         



 .  change any obligation of NiSource to maintain an office or agency in each place
    of payment or to maintain anoffice or agency outside the United States; and    



 .  modify these requirements or reduce the percentage in principal amount of outstanding debt          
    securities, theconsent of whose holders is necessary to waive any past default of certain covenants.

(See Section 902.)
Satisfaction and Discharge
Under the Indentures,NiSource can terminate its obligations with respect to 
debt securities of all series not previously delivered to the indenture 
trustee for cancellation when those debt securities:


 .  have become due and payable;



 .  will become due and payable at their stated maturity within one year; or



 .  are to be called for redemption within one year under arrangements   
    satisfactory to the indenture trustee forgiving notice of redemption.

NiSource may terminate its obligations with respect to the debt securities of 
that series by depositingwith the indenture trustee, as trust funds dedicated 
solely for that purpose, an amount sufficient to pay and discharge the entire 
indebtedness on the debt securities of that series. In that case, the 
applicable Indenture will cease to be of furthereffect and NiSource's 
obligations will be satisfied and discharged with respect to that series 
(except as to NiSource's obligations to pay all other amounts due under the 
applicable Indenture and to provide certain

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officers' certificates and opinions of counsel to the indenture trustee). At 
the expense of NiSource, the indenture trustee will execute proper instruments 
acknowledging the satisfaction anddischarge.
(See Section 401.)
Governing Law
Each of the Indentures is, and the related senior debt securities and 
subordinated debt securities will be, governed by the internal laws of the 
Stateof New York.
Information Concerning the Indenture Trustee
Prior to default, the indenture trustee will perform only those duties 
specifically set forth in the Indentures. After default, the indenture trustee 
willexercise the same degree of care as a prudent individual would exercise in 
the conduct of his or her own affairs. The indenture trustee is not required 
to expend or risk its own funds or otherwise incur personal financial 
liability in theperformance of its duties if it reasonably believes that it 
may not receive repayment or adequate indemnity. (See Section 601.)
Because The Bank ofNew York Mellon is the trustee under the Senior Indenture 
and the Subordinated Indenture, it may be required to resign as trustee under 
one of those Indentures if there is an event of default under an Indenture.
We may appoint an alternative trustee for any series of debt securities. The 
appointment of an alternative trustee would be described in the applicableprospe
ctus supplement.

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                            DESCRIPTION OF WARRANTS                             
NiSource may issue warrants to purchase equity or debt securities. NiSource 
may issue warrants independently or together with any offered securities. 
Thewarrants may be attached to or separate from those offered securities. 
NiSource will issue the warrants under warrant agreements to be entered into 
between NiSource and a bank or trust company, as warrant agent, all as 
described in the applicableprospectus supplement. The warrant agent will act 
solely as agent in connection with the warrants and will not assume any 
obligation or relationship of agency or trust for or with any holders or 
beneficial owners of warrants.
The prospectus supplement relating to any warrants that we may offer will 
contain the specific terms of the warrants. These terms may include the 
following:


 .  the title of the warrants;



 .  the designation, amount and terms of the securities for which the warrants are exercisable;



 .  the designation and terms of the other securities, if any, with which the warrants
    are to be issued and thenumber of warrants issued with each other security;       



 .  the price or prices at which the warrants will be issued;



 .  the aggregate number of warrants;



 .  any provisions for adjustment of the number or amount of securities receivable
    upon exercise of the warrants orthe exercise price of the warrants;           



 .  the price or prices at which the securities purchasable upon exercise of the warrants may be purchased;



 .  if applicable, the date on and after which the warrants and the securities
    purchasable upon exercise of thewarrants will be separately transferable; 



 .  if applicable, a discussion of the material U.S. federal income tax considerations applicable to the exercise ofthe warrants;



 .  any other terms of the warrants, including terms, procedures and 
    limitations relating to the exchange andexercise of the warrants;



 .  the date on which the right to exercise the warrants will commence, and the date on which the right will expire;



 .  the maximum or minimum number of warrants that may be exercised at any time; and



 .  information with respect to book-entry procedures, if any.

Exercise of Warrants
Each warrant will entitle theholder of warrants to purchase for cash the 
amount of equity or debt securities at the exercise price stated or 
determinable in the prospectus supplement for the warrants. Warrants may be 
exercised at any time up to the close of business on theexpiration date shown 
in the applicable prospectus supplement, unless otherwise specified in such 
prospectus supplement. After the close of business on the expiration date, 
unexercised warrants will become void. Warrants may be exercised asdescribed 
in the applicable prospectus supplement. When the warrant holder makes the 
payment and properly completes and signs the warrant certificate at the 
corporate trust office of the warrant agent or any other office indicated in 
the prospectussupplement, NiSource will, as soon as possible, forward the 
equity or debt securities that the warrant holder has purchased. If the 
warrant holder exercises the warrant for less than all of the warrants 
represented by the warrant certificate,NiSource will issue a new warrant 
certificate for the remaining warrants.

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        DESCRIPTION OF STOCK PURCHASE CONTRACTS AND STOCK PURCHASEUNITS         
NiSource may issue stock purchase contracts, including contracts obligating 
holders to purchase from NiSource, and for NiSource to sell to theholders, a 
specified number of shares of common stock or preferred stock at a future date 
or dates ("Stock Purchase Contracts"). The price per share of common stock and 
the number of shares of common stock may be fixed at the time thestock 
purchase contracts are issued or may be determined by reference to a specific 
formula stated in the stock purchase contracts.
The stock purchasecontracts may be issued separately or as part of units that 
we call "stock purchase units." Stock purchase units consist of a stock 
purchase contract and either NiSource's debt securities or U.S. treasury 
securities, securing theholders' obligations to purchase the shares of our 
common stock or preferred stock under the stock purchase contracts.
The stock purchase contractsmay require us to make periodic payments to the 
holders of the stock purchase units or vice versa, and these payments may be 
unsecured or prefunded on some basis. The stock purchase contracts may require 
holders to secure their obligations in aspecified manner.
The applicable prospectus supplement will describe the terms of the stock 
purchase contracts or stock purchase units. The descriptionin the prospectus 
supplement will only be a summary, and you should read the stock purchase 
contracts, and, if applicable, collateral or depositary arrangements, relating 
to the stock purchase contracts or stock purchase units. Material U.S. 
federalincome tax considerations applicable to the stock purchase units and 
the stock purchase contracts will also be discussed in the applicable 
prospectus supplement.
As of October 28, 2022, we had 8,625,000 Series A Equity Units outstanding, 
which were initially issued in the form of Series A Corporate Units, 
eachconsisting of (i) a forward contract to purchase shares of NiSource's 
common stock on December 1, 2023, subject to early settlement in certain 
situations, and (ii) a 10% undivided beneficial ownership interest in one 
share ofSeries C Preferred Stock.

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                              BOOK-ENTRY ISSUANCE                               
Unless otherwise specified in the applicable prospectus supplement, NiSource 
will issue any debt securities offered under this prospectus as "globalsecuritie
s." In addition, NiSource may issue other securities offered under this 
prospectus as global securities. We will describe the specific terms for 
issuing any security as a global security in the prospectus supplement 
relating to thatsecurity.
Unless otherwise specified in the applicable prospectus supplement, The 
Depository Trust Company, or DTC, will act as the depositary for anyglobal 
securities. NiSource will issue global securities as fully registered 
securities registered in the name of DTC's nominee, Cede & Co. NiSource will 
issue one or more fully registered global securities for each issue 
ofsecurities, each in the aggregate principal, stated amount or number of 
shares of such issue, and will deposit the global securities with DTC.
DTC is alimited-purpose trust company organized under the New York Banking 
Law, a "banking organization" within the meaning of the New York Banking Law, 
a member of the Federal Reserve System, a "clearing corporation" within the 
meaningof the New York Uniform Commercial Code, and a "clearing agency" 
registered under the provisions of Section 17A of the Securities Exchange Act. 
DTC holds and provides asset servicing for U.S. and
non-U.S.
equity issues, corporate and municipal debt issues and money market 
instruments that DTC's participants deposit with DTC. DTC also facilitates the 
post-trade settlement among its directparticipants of sales and other 
securities transactions in deposited securities, through electronic 
computerized book-entry transfers and pledges between its direct participants' 
accounts. This eliminates the need for physical movement ofsecurities 
certificates. DTC's direct participants include both U.S. and
non-U.S.
securities brokers and dealers, banks, trust companies, clearing corporations 
and certain other organizations. Access tothe DTC system is also available to 
others such as U.S. and
non-U.S.
securities brokers and dealers, banks, trust companies and clearing 
corporations that clear through or maintain a custodial relationshipwith a DTC 
participant, either directly or indirectly. The DTC rules applicable to its 
participants are on file with the SEC.
Purchases of securitiesunder DTC's system must be made by or through a direct 
participant, which will receive a credit for such securities on DTC's records. 
The ownership interest of each actual purchaser of each security, the 
beneficial owner, is in turn to berecorded on the records of direct and 
indirect participants. Beneficial owners will not receive written confirmation 
from DTC of their purchases, but they should receive written confirmations 
providing details of the transactions, as well asperiodic statements of their 
holdings, from the participants through which they entered into the 
transactions. Transfers of ownership interests in the securities are to be 
accomplished by entries made on the books of participants acting on behalf 
ofbeneficial owners. Beneficial owners will not receive certificates 
representing their ownership interests in securities, except in the event that 
use of the book-entry system for the securities is discontinued.
To facilitate subsequent transfers, all global securities that are deposited 
with, or on behalf of, DTC are registered in the name of DTC's nominee,Cede & 
Co., or such other name as may be requested by an authorized representative of 
DTC. The deposit of global securities with, or on behalf of, DTC and their 
registration in the name of Cede & Co. or such other DTC nominee donot effect 
any changes in beneficial ownership. DTC has no knowledge of the actual 
beneficial owners of the securities; DTC's records reflect only the identity 
of the direct participants to whose accounts such securities are credited, 
which mayor may not be the beneficial owners. The participants will remain 
responsible for keeping account of their holdings on behalf of their customers.

Conveyance of notices and other communications by DTC to direct participants, 
by direct participants to indirect participants and by direct and 
indirectparticipants to beneficial owners will be governed by arrangements 
among them, subject to any statutory or regulatory requirements as may be in 
effect from time to time.
Redemption notices will be sent to DTC. If less than all of the securities of 
like type, tenor and terms are being redeemed, DTC's practice is todetermine 
by lot the amount of the interest of each direct participant in such issue to 
be redeemed.

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Neither DTC nor Cede & Co. (nor any other DTC nominee) will consent or vote 
with respect to theglobal securities unless authorized by a direct participant 
in accordance with DTC's procedures. Under its usual procedures, DTC mails an 
omnibus proxy to NiSource as soon as possible after the applicable record 
date. The omnibus proxy assignsCede & Co.'s consenting or voting rights to 
those direct participants to whose accounts the securities are credited on the 
applicable record date (identified in a listing attached to the omnibus proxy).

Redemption proceeds, principal payments and any premium, interest or other 
payments on the global securities will be made to Cede & Co., or suchother 
nominee as may be requested by an authorized representative of DTC. DTC's 
practice is to credit direct participants' accounts upon DTC's receipt of 
funds and corresponding detail information on the payable date in 
accordancewith their respective holdings shown on DTC's records. Payments by 
participants to beneficial owners will be governed by standing instructions 
and customary practices, as is the case with securities held for the accounts 
of customers registeredin "street name," and will be the responsibility of the 
participant and not of DTC, NiSource or the indenture trustee, subject to any 
statutory or regulatory requirements. Payment of redemption proceeds, 
principal and any premium, interestor other payments to Cede & Co. (or such 
other nominee as may be requested by an authorized representative of DTC) is 
the responsibility of NiSource and the applicable paying agent, disbursement 
of payments to direct participants will bethe responsibility of DTC, and 
disbursement of payments to the beneficial owners will be the responsibility 
of direct and indirect participants.
Exceptas provided in the applicable prospectus supplement, a beneficial owner 
will not be entitled to receive physical delivery of a security. Accordingly, 
each beneficial owner must rely on the procedures of DTC to exercise any 
rights with respect tosuch beneficial owner's interest in a global security. 
The laws of some jurisdictions require that certain purchasers of securities 
take physical delivery of securities in definitive form. Such laws may impair 
the ability to transfer beneficialinterests in the global securities.
DTC may discontinue providing its services as securities depositary with 
respect to the global securities at any timeby giving reasonable notice to 
NiSource or, with respect to a debt security, the indenture trustee. Under 
such circumstances, in the event that a successor securities depositary is not 
obtained, certificates for the securities are required to beprinted and 
delivered to the holders of record.
NiSource may decide to discontinue use of the system of book-entry transfers 
through DTC (or a successorsecurities depositary). NiSource understands, 
however, that under current industry practices, DTC would notify its 
participants of NiSource's decision, but will only withdraw beneficial 
interests from the global securities at the request ofeach participant. In 
that event, certificates for the securities will be printed and delivered to 
the applicable participants.
The information in thissection concerning DTC and DTC's book-entry system has 
been obtained from sources that we believe to be reliable, but we take no 
responsibility for the accuracy of this information. We have no responsibility 
for the performance by DTC or itsparticipants of their respective obligations 
as described herein or under the rules and procedures governing their 
respective operations.

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                              PLAN OF DISTRIBUTION                              
We may sell the securities to or through underwriters, through dealers or 
agents, directly to you or through a combination of these methods. The 
prospectussupplement with respect to any offering of securities will describe 
the specific terms of the securities being offered, including:


 .  the name or names of any underwriters, dealers or agents;



 .  the purchase price of the securities and the proceeds to NiSource from the sale;



 .  any underwriting discounts and commissions or agency fees and other items constituting underwriters' oragents' compensation;



 .  any initial public offering price;



 .  any discounts or concessions allowed or reallowed or paid to dealers; and



 .  any securities exchange on which the offered securities may be listed.

Through Underwriters.
If we use underwriters in the sale of the securities, the underwriters will 
acquire the offered securities for their own account.We will execute an 
underwriting agreement with an underwriter or underwriters once an agreement 
for sale of the securities is reached. The underwriters may resell the offered 
securities in one or more transactions, including negotiated transactions,at a 
fixed public offering price or at varying prices determined at the time of 
sale. The underwriters may sell the offered securities directly or through 
underwriting syndicates represented by managing underwriters. Unless otherwise 
stated in theprospectus supplement relating to offered securities, the 
obligations of the underwriters to purchase those offered securities will be 
subject to certain conditions, and the underwriters will be obligated to 
purchase all of those offered securitiesif they purchase any of them.
Through Dealers.
If we use a dealer to sell the securities, we will sell the offered securities 
to the dealer asprincipal. The dealer may then resell those offered securities 
at varying prices determined at the time of resale. Any initial public 
offering price and any discounts or concessions allowed or reallowed or paid 
to dealers may be changed from time totime.
Through Agents.
If we use agents in the sale of securities, we may designate one or more 
agents to sell offered securities.
Directly to Purchasers.
We may sell the offered securities directly to one or more purchasers. In this 
case, no underwriters, dealers or agents wouldbe involved. We will describe 
the terms of our direct sales in our prospectus supplement.
General Information.
A prospectus supplement will statethe name of any underwriter, dealer or agent 
and the amount of any compensation, underwriting discounts or concessions 
paid, allowed or reallowed to them. A prospectus supplement will also state 
the proceeds to us from the sale of offeredsecurities, any initial public 
offering price and other terms of the offering of those offered securities.

Our agents, underwriters and dealers, or theiraffiliates, may be customers of, 
engage in transactions with or perform services for us in the ordinary course 
of business.
We may authorize agents,underwriters or dealers to solicit offers by certain 
institutions to purchase offered securities from us at the public offering 
price and on terms described in the related prospectus supplement pursuant to 
delayed delivery or forward contractsproviding for payment and delivery on a 
specified date in the future. If we use delayed delivery contracts, we will 
disclose that we are using them in our prospectus supplement and will tell you 
when we will demand payment and delivery of thesecurities. The delayed 
delivery contracts will be subject only to the conditions we set forth in our 
prospectus supplement.

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We may enter into agreements to indemnify agents, underwriters and dealers 
against certain civilliabilities, including liabilities under the Securities 
Act of 1933.

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                                 LEGAL OPINIONS                                 
Baker & McKenzie LLP, Chicago, Illinois, will pass upon certain legal matters 
relating to the validity of the securities offered by this prospectusfor us. 
The opinions with respect to the securities may be subject to assumptions 
regarding future action to be taken by us and the trustee, if applicable, in 
connection with the issuance and sale of the securities, the specific terms of 
thesecurities and other matters that may affect the validity of securities but 
that cannot be ascertained on the date of those opinions.
                                    EXPERTS                                     
The consolidated financial statements and the related financial statement 
schedule, incorporated by reference in this prospectus to theNiSource Inc. 
Annual Report on Form
10-K,
and the effectiveness of NiSource Inc. and subsidiaries' internal control over 
financial reporting have been audited by Deloitte & Touche LLP, anindependent 
registered public accounting firm, as stated in their reports. Such 
consolidated financial statements and financial statement schedule have been 
so incorporated in reliance upon the reports of such firm given their 
authority as expertsin accounting and auditing.

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                                       $                                        


                                 NiSource Inc.                                  
                                       %                                        
                                 Fixed-to-Fixed                                 
                                   Reset Rate                                   
                       Junior Subordinated Notes due 2055                       


                        PreliminaryProspectus Supplement                        


                          Joint Book-Running Managers                           
                                BofA Securities                                 
                             GoldmanSachs & Co. LLC                             
                                  J.P. Morgan                                   
                                 Morgan Stanley                                 
                             WellsFargo Securities                              


                                September , 2024                                



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