Formation and Basis of Presentation	3 Months Ended
Mar. 31, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Formation and Basis of Presentation	Note 1 — Formation and Basis of Presentation Formation and Nature of Business Talos Energy Inc. (“Talos,” the “Company,” “we,” “us” or “our”) is a technically driven independent exploration and production company focused on safely and efficiently maximizing cash flows and long-term value through our operations, currently in the United States (“U.S.”) Gulf of Mexico and offshore Mexico. As one of the largest public independent producers in the U.S. Gulf of Mexico, we leverage decades of geology, geophysics and offshore operations expertise towards the acquisition, exploration, exploitation and development of deep and shallow water assets in key geological trends that are present in many offshore basins around the world. Our activities offshore Mexico provide high impact exploration opportunities in an oil rich emerging basin. Talos was formed in connection with the business combination between Talos Energy LLC and Stone Energy Corporation (“Stone”) that occurred on May 10, 2018, pursuant to which Talos Energy LLC and Stone became indirect wholly-owned subsidiaries of Talos Energy Inc. Talos Energy LLC Talos Energy LLC was formed in 2011 and commenced commercial operations on February 6, 2013. Prior to February 6, 2013, Talos Energy LLC had incurred certain general and administrative expenses associated with the start-up of its operations. On February 3, 2012, Talos Energy LLC completed a transaction with certain funds and other alternative investment vehicles managed by Apollo Management VII, L.P. and Apollo Commodities Management, L.P., with respect to Series I (“Apollo Funds”), and entities controlled by or affiliated with Riverstone Energy Partners V, L.P. (“Riverstone Funds”) and members of management pursuant to which the Talos Energy LLC received a private equity capital commitment. Stone Combination On May 10, 2018 (the “Closing Date”), the Company consummated the transactions contemplated by that certain Transaction Agreement, dated as of November 21, 2017 (the “Transaction Agreement”), pursuant to which, among other items, each of Stone, Talos Production LLC and Talos Energy LLC became wholly-owned subsidiaries of the Company (the “Stone Combination”). Concurrently with the consummation of the Transaction Agreement, the Company consummated the transactions contemplated by that certain Exchange Agreement, dated as of November 21, 2017 (the “Exchange Agreement”) pursuant to which (i) the Apollo Funds and Riverstone Funds contributed $102.0 million in aggregate principal amount of 9.75% Senior Notes due 2022 (“9.75% Senior Notes”) issued by Talos Production LLC and Talos Production Finance, Inc. (together, “Talos Issuers”) to the Company in exchange for an aggregate of 2,874,049 shares of Talos common stock; (ii) the holders of second lien bridge loans (“11.00% Bridge Loans”) exchanged such 11.00% Bridge Loans for $172.0 million aggregate principal amount of 11.00% Second-Priority Senior Secured Notes due 2022 of the Talos Issuers (“11.00% Senior Secured Notes”) and (iii) certain holders of 7.50% Senior Secured Notes due 2022 issued by Stone (“7.50% Stone Senior Notes”) exchanged such notes for $137.4 million aggregate principal amount of 11.00% Senior Secured Notes. Prior to the Closing Date, the Company did not conduct any material activities other than those incident to its formation and the matters contemplated by the Transaction Agreement. See Note 2 – Acquisitions for further details regarding the Stone Combination. Substantially concurrent therewith, the Company consummated an exchange offer and consent solicitation, pursuant to which other holders of the 7.50% Stone Senior Notes exchanged their 7.50% Stone Senior Notes for 11.00% Senior Secured Notes and a cash payment. Approximately $81.5 million in aggregate principal amount of the 7.50% Stone Senior Notes were validly tendered, and approximately $6.1 million in aggregate principal amount of 7.50% Stone Senior Notes remained outstanding as of the Closing Date. Basis of Presentation and Consolidation The condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Accordingly, certain information and disclosures normally included in complete financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted pursuant to such rules and regulations. All intercompany transactions have been eliminated. The unaudited financial statements reflect all adjustments which are of a normal, recurring nature and are necessary to fairly present the financial position, results of operations and cash flows for the interim periods. The results for any interim period are not necessarily indicative of the expected results for the entire year. The Company has evaluated subsequent events through the date the condensed consolidated financial statements were issued. The unaudited financial statements and related notes included in this Quarterly Report on Form 10-Q (this “Quarterly Report”) should be read in conjunction with the Company’s audited Consolidated Financial Statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 (our “2018 Annual Report”). Talos Energy LLC was considered the accounting acquirer in the Stone Combination under GAAP. Accordingly, the historical financial and operating data of Talos Energy Inc., which covers periods prior to the Closing Date, reflects the assets, liabilities and results of operations of Talos Energy LLC and does not reflect the assets, liabilities and results of operations of Stone. For the periods prior to May 10, 2018, the Company retrospectively adjusted its Statements of Changes in Stockholders’ Equity and the weighted average shares used in determining earnings per share to reflect the number of shares Talos Energy LLC received in the Stone Combination. Beginning on May 10, 2018, common stock is presented to reflect the legal capital of Talos Energy Inc. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements, the reported amounts of revenues and expenses during the reporting periods and the reported amounts of proved oil and natural gas reserves. Actual results could differ from those estimates. The Company has one reportable segment, exploration and production of oil and natural gas. Substantially all of the Company’s proved reserves and production sales are related to the Company’s operations in the U.S. Unless otherwise indicated or the context otherwise requires, references in this Quarterly Report to “Talos,” the “Company,” “we,” “us,” or “our” refer to Talos Energy Inc. and its wholly-owned subsidiaries. Recently Adopted Accounting Standards Leases. In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Codification (“ASC”) 2016-02, Leases (“Topic 842”) requiring an entity to recognize a right-of-use asset representing the right to use an underlying asset for the lease term and a lease liability representing the obligation associated with future lease payments for virtually all leases. The pattern of expense recognition in the income statement is dependent on lease classification as finance or operating. A lease is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant or equipment (an identified asset) for a period of time in exchange for consideration. However, Topic 842 does not apply to leases of mineral rights. On January 1, 2019, the Company adopted Topic 842, using the modified retrospective approach, which does not require an adjustment to comparative-period financial statements. As such, results for reporting periods beginning January 1, 2019 are presented in accordance with Topic 842, while prior period amounts are reported in accordance with previous lease accounting treatment. The Company elected the package of practical expedients permitted under the transition guidance within the new standard, which, among other items, allowed Talos not to reassess whether expired or existing contracts, including land easements, contain a lease or reassess the classification and indirect costs associated with existing or expired leases. On the January 1, 2019 adoption date, the Company recorded a right-of-use asset of approximately $7.3 million and corresponding lease liability of $16.9 million representing the present value of its future operating lease payments. Upon the adoption of Topic 842, lease incentives are presented as a reduction to the right-of-use asset resulting in the difference between the right-of-use asset and lease liability. Adoption of this standard did not require an adjustment to retained earnings and did not impact the condensed consolidated statements of operations, condensed consolidated statements of cash flows or condensed consolidated statements of changes in stockholders’ equity. See Note 4 – Leases for further information.

Formation and Basis of Presentation

3 Months Ended

Mar. 31, 2019

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Note 1 — Formation and Basis of Presentation

Formation and Nature of Business

Talos Energy Inc. (“Talos,” the “Company,” “we,” “us” or “our”) is a technically driven independent exploration and production company focused on safely and efficiently maximizing cash flows and long-term value through our operations, currently in the United States (“U.S.”) Gulf of Mexico and offshore Mexico. As one of the largest public independent producers in the U.S. Gulf of Mexico, we leverage decades of geology, geophysics and offshore operations expertise towards the acquisition, exploration, exploitation and development of deep and shallow water assets in key geological trends that are present in many offshore basins around the world. Our activities offshore Mexico provide high impact exploration opportunities in an oil rich emerging basin.

Talos was formed in connection with the business combination between Talos Energy LLC and Stone Energy Corporation (“Stone”) that occurred on May 10, 2018, pursuant to which Talos Energy LLC and Stone became indirect wholly-owned subsidiaries of Talos Energy Inc.

Talos Energy LLC

Talos Energy LLC was formed in 2011 and commenced commercial operations on February 6, 2013. Prior to February 6, 2013, Talos Energy LLC had incurred certain general and administrative expenses associated with the start-up of its operations.

On February 3, 2012, Talos Energy LLC completed a transaction with certain funds and other alternative investment vehicles managed by Apollo Management VII, L.P. and Apollo Commodities Management, L.P., with respect to Series I (“Apollo Funds”), and entities controlled by or affiliated with Riverstone Energy Partners V, L.P. (“Riverstone Funds”) and members of management pursuant to which the Talos Energy LLC received a private equity capital commitment.

Stone Combination

On May 10, 2018 (the “Closing Date”), the Company consummated the transactions contemplated by that certain Transaction Agreement, dated as of November 21, 2017 (the “Transaction Agreement”), pursuant to which, among other items, each of Stone, Talos Production LLC and Talos Energy LLC became wholly-owned subsidiaries of the Company (the “Stone Combination”). Concurrently with the consummation of the Transaction Agreement, the Company consummated the transactions contemplated by that certain Exchange Agreement, dated as of November 21, 2017 (the “Exchange Agreement”) pursuant to which (i) the Apollo Funds and Riverstone Funds contributed $102.0 million in aggregate principal amount of 9.75% Senior Notes due 2022 (“9.75% Senior Notes”) issued by Talos Production LLC and Talos Production Finance, Inc. (together, “Talos Issuers”) to the Company in exchange for an aggregate of 2,874,049 shares of Talos common stock; (ii) the holders of second lien bridge loans (“11.00% Bridge Loans”) exchanged such 11.00% Bridge Loans for $172.0 million aggregate principal amount of 11.00% Second-Priority Senior Secured Notes due 2022 of the Talos Issuers (“11.00% Senior Secured Notes”) and (iii) certain holders of 7.50% Senior Secured Notes due 2022 issued by Stone (“7.50% Stone Senior Notes”) exchanged such notes for $137.4 million aggregate principal amount of 11.00% Senior Secured Notes. Prior to the Closing Date, the Company did not conduct any material activities other than those incident to its formation and the matters contemplated by the Transaction Agreement. See Note 2 – Acquisitions for further details regarding the Stone Combination.

Substantially concurrent therewith, the Company consummated an exchange offer and consent solicitation, pursuant to which other holders of the 7.50% Stone Senior Notes exchanged their 7.50% Stone Senior Notes for 11.00% Senior Secured Notes and a cash payment. Approximately $81.5 million in aggregate principal amount of the 7.50% Stone Senior Notes were validly tendered, and approximately $6.1 million in aggregate principal amount of 7.50% Stone Senior Notes remained outstanding as of the Closing Date.

Basis of Presentation and Consolidation

The condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Accordingly, certain information and disclosures normally included in complete financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted pursuant to such rules and regulations. All intercompany transactions have been eliminated. The unaudited financial statements reflect all adjustments which are of a normal, recurring nature and are necessary to fairly present the financial position, results of operations and cash flows for the interim periods. The results for any interim period are not necessarily indicative of the expected results for the entire year. The Company has evaluated subsequent events through the date the condensed consolidated financial statements were issued. The unaudited financial statements and related notes included in this Quarterly Report on Form 10-Q (this “Quarterly Report”) should be read in conjunction with the Company’s audited Consolidated Financial Statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 (our “2018 Annual Report”).

Talos Energy LLC was considered the accounting acquirer in the Stone Combination under GAAP. Accordingly, the historical financial and operating data of Talos Energy Inc., which covers periods prior to the Closing Date, reflects the assets, liabilities and results of operations of Talos Energy LLC and does not reflect the assets, liabilities and results of operations of Stone. For the periods prior to May 10, 2018, the Company retrospectively adjusted its Statements of Changes in Stockholders’ Equity and the weighted average shares used in determining earnings per share to reflect the number of shares Talos Energy LLC received in the Stone Combination. Beginning on May 10, 2018, common stock is presented to reflect the legal capital of Talos Energy Inc.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements, the reported amounts of revenues and expenses during the reporting periods and the reported amounts of proved oil and natural gas reserves. Actual results could differ from those estimates.

The Company has one reportable segment, exploration and production of oil and natural gas. Substantially all of the Company’s proved reserves and production sales are related to the Company’s operations in the U.S.

Unless otherwise indicated or the context otherwise requires, references in this Quarterly Report to “Talos,” the “Company,” “we,” “us,” or “our” refer to Talos Energy Inc. and its wholly-owned subsidiaries.

Recently Adopted Accounting Standards

Leases. In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Codification (“ASC”) 2016-02, Leases (“Topic 842”) requiring an entity to recognize a right-of-use asset representing the right to use an underlying asset for the lease term and a lease liability representing the obligation associated with future lease payments for virtually all leases. The pattern of expense recognition in the income statement is dependent on lease classification as finance or operating. A lease is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant or equipment (an identified asset) for a period of time in exchange for consideration. However, Topic 842 does not apply to leases of mineral rights.

On January 1, 2019, the Company adopted Topic 842, using the modified retrospective approach, which does not require an adjustment to comparative-period financial statements. As such, results for reporting periods beginning January 1, 2019 are presented in accordance with Topic 842, while prior period amounts are reported in accordance with previous lease accounting treatment. The Company elected the package of practical expedients permitted under the transition guidance within the new standard, which, among other items, allowed Talos not to reassess whether expired or existing contracts, including land easements, contain a lease or reassess the classification and indirect costs associated with existing or expired leases. On the January 1, 2019 adoption date, the Company recorded a right-of-use asset of approximately $7.3 million and corresponding lease liability of $16.9 million representing the present value of its future operating lease payments. Upon the adoption of Topic 842, lease incentives are presented as a reduction to the right-of-use asset resulting in the difference between the right-of-use asset and lease liability. Adoption of this standard did not require an adjustment to retained earnings and did not impact the condensed consolidated statements of operations, condensed consolidated statements of cash flows or condensed consolidated statements of changes in stockholders’ equity. See Note 4 – Leases for further information.