Basis of Presentation	6 Months Ended
Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation PetroQuest Energy, Inc., a Delaware corporation, is an independent oil and gas company headquartered in Lafayette, Louisiana with an exploration office in The Woodlands, Texas. It is engaged in the exploration, development, acquisition and operation of oil and gas properties in Texas and Louisiana. To facilitate our financial statement presentations, we refer to the post-emergence reorganized company in these consolidated financial statements and footnotes as the “Successor” for periods subsequent to February 8, 2019, and to the pre-emergence company as “Predecessor” for periods prior to and including February 8, 2019, the Effective Date of the Plan (as defined below). As discussed in “Note 3-Emergence from Chapter 11 Reorganization” the Company and its wholly owned direct and indirect subsidiaries filed voluntary petitions for bankruptcy relief on November 6, 2018 and subsequently operated as debtors in possession, in accordance with the applicable provisions of the Bankruptcy Code, until emergence on February 8, 2019. The consolidated financial information for the period February 9, 2019 through June 30, 2019 (Successor), for the period January 1, 2019 through February 8, 2019 (Predecessor) and for the three and six month periods ended June 30, 2018 (Predecessor), have been prepared by the Company and were not audited by its independent registered public accountants. In the opinion of management, all normal and recurring adjustments have been made to present fairly the financial position, results of operations, and cash flows of the Company at June 30, 2019 and for all reported periods. Results of operations for the interim periods presented are not necessarily indicative of the operating results for the full year or any future periods. The balance sheet at December 31, 2018 has been derived from the audited financial statements at that date. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles have been condensed or omitted. These consolidated financial statements should be read in conjunction with the audited financial statements and related notes thereto included in the Company’s Form 10-K. Certain prior period amounts have been reclassified to conform to current year presentation. Principles of Consolidation The consolidated financial statements of the Predecessor include the accounts of the Company and its subsidiaries, PetroQuest Energy, L.L.C ("PQE"), PetroQuest Oil & Gas, L.L.C, and its former subsidiaries, Pittrans, Inc. and TDC Energy LLC through and including the Effective Date. The Successor's consolidated financial statements include the accounts of the Company, PQE and PetroQuest Oil & Gas, L.L.C. All intercompany accounts and transactions have been eliminated as part of the normal course of business. Bankruptcy Accounting and Financial Reporting The consolidated financial statements have been prepared in accordance with Accounting Standards Codification ("ASC") 852, Reorganizations ("ASC 852"), for the period subsequent to the bankruptcy filing. ASC 852 requires that the consolidated financial statements distinguish transactions and events that are directly associated with the reorganization from the ongoing operations of the business. Accordingly, certain expenses, gains and losses that were realized or incurred in the Chapter 11 Cases (as defined below) were recorded as reorganization items, net in the consolidated statement of operations. In addition, the pre-petition obligations that may be impacted by the bankruptcy reorganization process were classified on the consolidated balance sheet as liabilities subject to compromise. These liabilities are reported at the amounts expected to be allowed by the Bankruptcy Court (as defined below), even if they may be settled for lesser amounts. Upon the Effective Date of the Plan, February 8, 2019, we applied fresh start accounting. See "Note 4-Fresh Start Accounting". As a result of the application of fresh start accounting, as well as the effects of the implementation of the Plan, a new entity for financial reporting purposes was created, and as such, the consolidated financial statements on or after February 9, 2019, are not comparable with the consolidated financial statements prior to that date. A blackline presentation has been used to delineate the lack of comparability between predecessor and successor balances. See Note 4 for additional information on the selection of the Effective Date of fresh start accounting and for further discussion. The accompanying consolidated financial statements have been prepared assuming the Company will continue as a going concern, which contemplates continuity of operations, realization of assets and the satisfaction of liabilities in the normal course of business for the twelve month period following the filing date of these consolidated financial statements. Recently Issued Accounting Standards In August 2017, the FASB issued ASU 2017-12, "Derivatives and Hedging," to improve the financial reporting of hedging relationships to better portray the economic results of an entity's risk management activities in its consolidated financial statements and make certain targeted improvements to simplify the application of the hedge accounting guidance in current US GAAP. ASU 2017-12 is effective for public entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years, with earlier application permitted. The Company has adopted this new standard. As there are no outstanding derivatives, there is no effect on its consolidated financial statements. In June 2016, the FASB issued ASU 2016-13, "Financial Instruments - Credit Losses", that requires entities to estimate all expected credit losses for most financial assets held at the reporting date based on an expected loss model, which requires consideration of historical experience, current conditions, and reasonable and supportable forecasts. This ASU also requires enhanced disclosure requirements to enable users of financial statements to understand the entity's assumptions, models and methods for estimating expected credit losses. For public companies, this ASU is effective for interim and annual reporting periods beginning after December 31, 2019, with early adoption permitted. The Company does not expect this guidance to have a material impact on its financial statements.

Basis of Presentation

PetroQuest Energy, Inc., a Delaware corporation, is an independent oil and gas company headquartered in Lafayette, Louisiana with an exploration office in The Woodlands, Texas. It is engaged in the exploration, development, acquisition and operation of oil and gas properties in Texas and Louisiana. To facilitate our financial statement presentations, we refer to the post-emergence reorganized company in these consolidated financial statements and footnotes as the “Successor” for periods subsequent to February 8, 2019, and to the pre-emergence company as “Predecessor” for periods prior to and including February 8, 2019, the Effective Date of the Plan (as defined below). As discussed in “Note 3-Emergence from Chapter 11 Reorganization” the Company and its wholly owned direct and indirect subsidiaries filed voluntary petitions for bankruptcy relief on November 6, 2018 and subsequently operated as debtors in possession, in accordance with the applicable provisions of the Bankruptcy Code, until emergence on February 8, 2019.

The consolidated financial information for the period February 9, 2019 through June 30, 2019 (Successor), for the period January 1, 2019 through February 8, 2019 (Predecessor) and for the three and six month periods ended June 30, 2018 (Predecessor), have been prepared by the Company and were not audited by its independent registered public accountants. In the opinion of management, all normal and recurring adjustments have been made to present fairly the financial position, results of operations, and cash flows of the Company at June 30, 2019 and for all reported periods. Results of operations for the interim periods presented are not necessarily indicative of the operating results for the full year or any future periods.

The balance sheet at December 31, 2018 has been derived from the audited financial statements at that date. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles have been condensed or omitted. These consolidated financial statements should be read in conjunction with the audited financial statements and related notes thereto included in the Company’s Form 10-K. Certain prior period amounts have been reclassified to conform to current year presentation.

Principles of Consolidation

The consolidated financial statements of the Predecessor include the accounts of the Company and its subsidiaries, PetroQuest Energy, L.L.C ("PQE"), PetroQuest Oil & Gas, L.L.C, and its former subsidiaries, Pittrans, Inc. and TDC Energy LLC through and including the Effective Date. The Successor's consolidated financial statements include the accounts of the Company, PQE and PetroQuest Oil & Gas, L.L.C. All intercompany accounts and transactions have been eliminated as part of the normal course of business.

Bankruptcy Accounting and Financial Reporting

The consolidated financial statements have been prepared in accordance with Accounting Standards Codification ("ASC") 852, Reorganizations ("ASC 852"), for the period subsequent to the bankruptcy filing. ASC 852 requires that the consolidated financial statements distinguish transactions and events that are directly associated with the reorganization from the ongoing operations of the business. Accordingly, certain expenses, gains and losses that were realized or incurred in the Chapter 11 Cases (as defined below) were recorded as reorganization items, net in the consolidated statement of operations. In addition, the pre-petition obligations that may be impacted by the bankruptcy reorganization process were classified on the consolidated balance sheet as liabilities subject to compromise. These liabilities are reported at the amounts expected to be allowed by the Bankruptcy Court (as defined below), even if they may be settled for lesser amounts.

Upon the Effective Date of the Plan, February 8, 2019, we applied fresh start accounting. See "Note 4-Fresh Start Accounting". As a result of the application of fresh start accounting, as well as the effects of the implementation of the Plan, a new entity for financial reporting purposes was created, and as such, the consolidated financial statements on or after February 9, 2019, are not comparable with the consolidated financial statements prior to that date. A blackline presentation has been used to delineate the lack of comparability between predecessor and successor balances. See Note 4 for additional information on the selection of the Effective Date of fresh start accounting and for further discussion.

The accompanying consolidated financial statements have been prepared assuming the Company will continue as a going concern, which contemplates continuity of operations, realization of assets and the satisfaction of liabilities in the normal course of business for the twelve month period following the filing date of these consolidated financial statements.

Recently Issued Accounting Standards

In August 2017, the FASB issued ASU 2017-12, "Derivatives and Hedging," to improve the financial reporting of hedging relationships to better portray the economic results of an entity's risk management activities in its consolidated financial statements and make certain targeted improvements to simplify the application of the hedge accounting guidance in current US GAAP. ASU 2017-12 is effective for public entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years, with earlier application permitted. The Company has adopted this new standard. As there are no outstanding derivatives, there is no effect on its consolidated financial statements.

In June 2016, the FASB issued ASU 2016-13, "Financial Instruments - Credit Losses", that requires entities to estimate all expected credit losses for most financial assets held at the reporting date based on an expected loss model, which requires consideration of historical experience, current conditions, and reasonable and supportable forecasts. This ASU also requires enhanced disclosure requirements to enable users of financial statements to understand the entity's assumptions, models and methods for estimating expected credit losses. For public companies, this ASU is effective for interim and annual reporting periods beginning after December 31, 2019, with early adoption permitted. The Company does not expect this guidance to have a material impact on its financial statements.