Exhibit 99.1

TALOS ENERGY ANNOUNCES THIRD QUARTER 2020 FINANCIAL AND OPERATIONAL RESULTS

Houston, Texas, November 4, 2020 – Talos Energy Inc. (“Talos” or the “Company”) (NYSE: TALO) today announced its financial and operational results for the third quarter of 2020.

Key Highlights:

President and Chief Executive Officer Timothy S. Duncan commented: “As we discussed in our October 7^th operations update, the third quarter was particularly challenging, dominated by the busiest storm season in the last 15 years in the Gulf of Mexico. These storms did not cause significant damage to our infrastructure, but shut-in production and project delays resulted in a decrease in revenue as well as an increase in capital spending and delays in first production on active development projects. Despite those challenges, we made significant progress in our operations to exit 2020 on strong footing with a more resilient set of assets, with more scale and diversity and with a lower cost structure than how we entered the year.”

Duncan continued: “There have been several important milestones as we close out the year. We are proud to have published our first ESG report and look forward to providing annual updates going forward. The report highlights our mission to provide life-improving energy with minimal impact to the environment and climate, while also promoting a company culture that’s recognized as one of the best in Houston. On the operations front, we continue to deliver on the low end of our operating cost guidance, even with the additional hurricane-related costs, allowing us to have a highly competitive cost structure as we ramp to our full expected run-rate to exit the year. As we conclude our 2020 capital program in November and restore production to our target exit rate of 71-73 MBoe/d, we look forward to generating solid results in the fourth quarter and moving forward into 2021.”

RECENT DEVELOPMENTS AND OPERATIONS UPDATE

Drilling and Exploration Activities – U.S. Gulf of Mexico

Tornado Water Flood: Injection from the B-4 aquifer into the B-6 producing reservoir continues at an injection rate of more than 20,000 barrels of water per day. Preliminary results from the producing Tornado wells are very positive, having exhibited both an increase in total production rate and an increase in measured reservoir pressures in the B-6 reservoir. Talos holds a 65.0% working interest in the Tornado field and is the operator, with Kosmos Energy holding a 35.0% working interest.

Kaleidoscope: Following the previously announced successful drilling of the Kaleidoscope well from the Green Canyon 18 platform, Talos expects first production from the well in late November 2020. Talos holds a 100.0% working interest in the well.

Ram Powell Facility: As a result of weather conditions from Tropical Storm Beta and Hurricane Zeta in October 2020, the completion of repairs and restart of the facility is now expected in November 2020. Talos holds a 100.0% working interest in Ram Powell.

Bulleit: After initiating flowback, the ramping up of production was halted for personnel evacuations resulting from Hurricane Zeta. Talos expects to re-initiate production following the re-staffing of the Green Canyon 18 platform in November 2020. Talos holds a 50.0% working interest and is the operator, with EnVen and Otto Energy holding 33.3% and 16.7% working interests, respectively.

Puma West: Drilling of the Puma West exploration prospect is expected to resume in the fourth quarter of 2020. The well was temporarily halted in January 2020 prior to drilling through the Middle and Lower Miocene main objectives. bp is the operator and holds a 50.0% working interest. Talos and Chevron each hold a 25.0% working interest.

Drilling and Exploration Activities – Mexico

Zama Unitization: Unitization discussions with Petróleos Mexicanos (“Pemex”) continue regarding the Company’s Zama discovery in offshore Mexico. Talos maintains its target to conclude unitization negotiations by mid-January, as directed by Mexico’s Ministry of Energy (“SENER”).

Corporate Activities

ESG Report: The Company recently published its inaugural Environmental, Social and Governance report. Highlights from 2019 include strong performance and year-over-year improvements in numerous safety and environmental categories, continued material support for local communities and charitable organizations and sustained employee support as evidenced by the Company’s seventh consecutive year voted as a Top Workplace in Houston by the Houston Chronicle.

Fall Borrowing Base Redetermination: Talos has recently initiated its Fall 2020 borrowing base redetermination discussion for the Company’s RBL facility, and expects to conclude the process over the next several weeks.

THIRD QUARTER 2020 RESULTS

Key Financial Highlights:

Production, Realized Prices and Revenue

Production for the third quarter of 2020 was 48.6 MMBoe, with oil production accounting for 67% of the total. Oil price realizations, net of certain gathering, transportation, quality differentials and other costs, were $39.00 per barrel, before hedges. Natural Gas price realizations, net of certain gathering, transportation and other costs, were $1.78 per Mcf, before hedges.

Expenses

Total lease operating expenses (“LOE”), inclusive of workover and maintenance and insurance costs for the quarter, were $62.1 million or $13.89/Boe. General and administrative expenses (“G&A”) for the quarter, excluding stock-based compensation, transaction-related expenses and other one-time time expenses, was $13.9 million, or $3.10/Boe.

Other Financial Metrics

Capital Expenditures & Asset Management Activities

Liquidity & Debt

As of September 30, 2020, Talos had $353.8 million of liquidity and maintained $32.4 million in cash on hand and $650.0 million drawn on the $985.0 million borrowing base under its credit facility. The Company had approximately $1,070.7 million in total debt, inclusive of $66.7 million related to the HP-I finance lease. Inclusive of pre-closing contributions from the recent ILX/Castex and Castex 2005 acquisitions, Net Debt to Credit Facility LTM Adjusted EBITDA⁽¹⁾, as determined in accordance with the Company’s credit agreement, was 1.8x. Excluding the contribution from the Acquired Assets, Net Debt to LTM Adjusted EBITDA⁽¹⁾ ratio was 2.2x.

Footnotes:

HEDGES

The following table reflects the current contracted volumes and weighted average prices the Company will receive under the terms of its derivative contracts, including contracts entered into following the end of the quarter:

CONFERENCE CALL AND WEBCAST INFORMATION

Talos will host an earnings conference call, which will be broadcast live over the internet, tomorrow, Thursday, November 5, 2020 at 10:00 AM Eastern Time. Listeners can access the earnings conference call live over the Internet through a webcast link on the Company’s website at: https://www.talosenergy.com/investors. Alternatively, the call can be accessed by dialing (888) 348-8927 (U.S. toll-free), (855) 669-9657 (Canada toll-free) or (412) 902-4263 (International). Please dial in approximately 15 minutes before the teleconference is scheduled to begin and ask to be joined into the Talos Energy call. A replay of the call will be available one hour after the conclusion of the conference through November 12, 2020 and can be accessed by dialing (877) 344-7529 and using access code 10148673.

ABOUT TALOS ENERGY

Talos Energy (NYSE: TALO) is a technically driven independent exploration and production company focused on safely and efficiently maximizing cash flows and long-term value through its operations, currently in the United States Gulf of Mexico and offshore Mexico. As one of the U.S. Gulf of Mexico’s largest public independent producers, we leverage decades of geology, geophysics and offshore operations expertise towards the acquisition, exploration, exploitation and development of assets in key geological trends that are present in many offshore basins around the world. Our activities in offshore Mexico provide high impact exploration opportunities in an oil rich emerging basin. For more information, visit www.talosenergy.com.

INVESTOR RELATIONS CONTACT

Sergio Maiworm

+1.713.328.3008

investor@talosenergy.com

CAUTIONARY STATEMENT ABOUT FORWARD-LOOKING STATEMENTS

This communication may contain “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. All statements, other than statements of historical fact included in this communication, regarding our strategy, future operations, financial position, estimated revenues and losses, projected costs, prospects, plans and objectives of management are forward-looking statements. When used in this communication, the words “could,” “believe,” “anticipate,” “intend,” “estimate,” “expect,” “project,” “forecast, “may,” “objective,” “plan” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain such identifying words. These forward-looking statements are based on our current expectations and assumptions about future events and are based on currently available information as to the outcome and timing of future events.

We caution you that these forward-looking statements are subject to numerous risks and uncertainties, most of which are difficult to predict and many of which are beyond our control. These risks include, but are not limited to, commodity price volatility, including the sharp decline in oil prices beginning in March 2020, the impact of the coronavirus disease 2019 (“COVID-19”) and governmental measures related thereto on global demand for oil and natural gas and on the operations of our business, the ability or willingness of the Organization of Petroleum Exporting Countries (“OPEC”) and non-OPEC countries, such as Saudi Arabia and Russia, to set and maintain oil production levels and the impact of any such actions, lack of transportation and storage capacity as a result of oversupply, government regulations and actions, including with respect to repairs to the Ram Powell facility, or other factors, inflation, lack of availability of drilling and production equipment and services, environmental risks, drilling and other operating risks, regulatory changes, the uncertainty inherent in estimating reserves and in projecting future rates of production, cash flow and access to capital, the timing of development expenditures, the possibility that the anticipated benefits of recent acquisitions are not realized when expected or at all, including as a result of the impact of, or problems arising from, the integration of such acquisitions, and other factors that may affect our future results and business, generally, including those discussed under the heading “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2019 and our Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2020, to be filed with the SEC subsequent to the issuance of this communication.

Should one or more of these risks occur, or should underlying assumptions prove incorrect, our actual results and plans could differ materially from those expressed in any forward-looking statements. All forward-looking statements, expressed or implied, are expressly qualified in their entirety by this cautionary statement. This cautionary statement should also be considered in connection with any subsequent written or oral forward-looking statements that we or persons acting on our behalf may issue. Except as otherwise required by applicable law, we disclaim any duty to update any forward-looking statements, to reflect events or circumstances after the date of this communication.

Estimates for our future production volumes are based on assumptions of capital expenditure levels and the assumption that market demand and prices for oil and gas will continue at levels that allow for economic production of these products. The production, transportation, marketing and storage of oil and gas are subject to disruption due to transportation, processing and storage availability, mechanical failure, human error, hurricanes and numerous other factors. Our estimates are based on certain other assumptions, such as well performance, which may vary significantly from those assumed. Therefore, we can give no assurance that our future production volumes will be as estimated.

Talos Energy Inc.

Condensed Consolidated Balance Sheets

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Talos Energy Inc.

Condensed Consolidated Statements of Operations

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Talos Energy Inc.

Condensed Consolidated Statements of Cash Flows

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SUPPLEMENTAL NON-GAAP INFORMATION

Certain financial information included in our financial results are not measures of financial performance recognized by accounting principles generally accepted in the United States, or GAAP. These non-GAAP financial measures are “Adjusted Net Income,” “Adjusted Earnings per Share,” “EBITDA,” “Adjusted EBITDA,” “Adjusted EBITDA excluding hedges,” “Adjusted EBITDA Margin,” “Adjusted EBITDA Margin excluding hedges,” “Free Cash Flow,” “Net Debt,” “LTM Adjusted EBITDA,” “Credit Facility LTM Adjusted EBITDA” and “Net Debt to Credit Facility LTM Adjusted EBITDA.” These disclosures may not be viewed as a substitute for results determined in accordance with GAAP and are not necessarily comparable to non-GAAP measures which may be reported by other companies.

Reconciliation of Net Income (Loss) to EBITDA and Adjusted EBITDA

“EBITDA” and “Adjusted EBITDA” are to provide management and investors with (i) additional information to evaluate, with certain adjustments, items required or permitted in calculating covenant compliance under our debt agreements, (ii) important supplemental indicators of the operational performance of our business, (iii) additional criteria for evaluating our performance relative to our peers and (iv) supplemental information to investors about certain material non-cash and/or other items that may not continue at the same level in the future. EBITDA and Adjusted EBITDA have limitations as analytical tools and should not be considered in isolation or as substitutes for analysis of our results as reported under GAAP or as alternatives to net income (loss), operating income (loss) or any other measure of financial performance presented in accordance with GAAP.

We define these as the following:

EBITDA. Net income (loss) plus interest expense, income tax expense (benefit), depreciation, depletion and amortization and accretion expense.

Adjusted EBITDA. EBITDA plus non-cash write-down of oil and natural gas properties, loss on debt extinguishment, transaction related costs, derivative fair value (gain) loss, net cash receipts (payments) on settled derivatives, non-cash (gain) loss on sale of assets, non-cash write-down of other well equipment inventory and non-cash equity-based compensation expense.

We also present Adjusted EBITDA excluding hedges and as a percentage of revenue to further analyze our business, which are outlined below:

Adjusted EBITDA Margin. EBITDA divided by Revenue, as a percentage. It is also defined as Adjusted EBITDA divided by the total production volume, expressed in Boe, in the period, and described as dollar per Boe. We believe the presentation of Adjusted EBITDA Margin is important to provide management and investors with information about how much we retain in Adjusted EBITDA terms as compared to the revenue we generate and how much per barrel we generate after accounting for certain operational and corporate costs.

The following table presents a reconciliation of the GAAP financial measure of net income (loss) to EBITDA, Adjusted EBITDA, Adjusted EBITDA excluding hedges, Adjusted EBITDA Margin and Adjusted EBITDA Margin excluding hedges for each of the periods indicated (in thousands, except for Boe, $/Boe and percentage data):

Reconciliation of Net Income (Loss) to Adjusted Net Income and Adjusted Earnings per Share

“Adjusted Net Income” and “Adjusted Earnings per Share” are to provide management and investors with (i) important supplemental indicators of the operational performance of our business, (ii) additional criteria for evaluating our performance relative to our peers and (iii) supplemental information to investors about certain material non-cash and/or other items that may not continue at the same level in the future. Adjusted Net Income and Adjusted Earnings per Share have limitations as analytical tools and should not be considered in isolation or as a substitute for analysis of our results as reported under GAAP or as an alternative to net income (loss), operating income (loss), earnings per share or any other measure of financial performance presented in accordance with GAAP.

Adjusted Net Income. Net income (loss) plus accretion expense, transaction related costs, derivative fair value (gain) loss, net cash receipts (payments) on settled derivative instruments and non-cash equity-based compensation expense.

Adjusted Earnings per Share. Adjusted Net Income divided by the number of common shares.

Reconciliation of Total Debt to Net Debt and Net Debt to LTM Adjusted EBITDA and Credit Facility LTM Adjusted EBITDA

We believe the presentation of Net Debt, LTM Adjusted EBITDA, Credit Facility LTM Adjusted EBITDA, Net Debt to LTM Adjusted EBITDA and Net Debt to Credit Facility LTM Adjusted EBITDA is important to provide management and investors with additional important information to evaluate our business. These measures are widely used by investors and ratings agencies in the valuation, comparison, rating and investment recommendations of companies

Net Debt. Total Debt principal of the Company plus the Finance Lease balance minus Cash.

Net Debt to LTM Adjusted EBITDA. Net Debt divided by the LTM Adjusted EBITDA.

Net Debt to Credit Facility LTM Adjusted EBITDA. Net Debt divided by the Credit Facility LTM Adjusted EBITDA.

The Adjusted EBITDA information included in this communication provides additional relevant information to our investors and creditors. Talos needs to comply with a financial covenant included in its Bank Credit Facility that requires it to maintain a Net Debt to Credit Facility LTM Adjusted EBITDA ratio, as determined in accordance with the Company’s credit agreement, equal to or lower than 3.0x. For purposes of covenant compliance, Credit Facility LTM Adjusted EBITDA, with certain adjustments, is calculated as the sum of quarterly Adjusted EBITDA for the 12-month period ended on that quarter, inclusive of revenue less direct operating expenditures of the Acquired Assets for periods prior to closing of the Transaction.