Divestitures	12 Months Ended
Divestitures	Dec. 31, 2022
Business Combination and Asset Acquisition [Abstract]
Divestitures	Divestitures 2022 Divestitures OMP Merger. In October 2021, OMP, a master limited partnership formed by the Company to own, develop, operate and acquire midstream assets in North America, and OMP GP, the general partner of OMP, entered into an Agreement and Plan of Merger (the “OMP Merger Agreement”) with Crestwood and Crestwood Equity GP LLC, a Delaware limited liability company and the general partner of Crestwood (“Crestwood GP”). Pursuant to the OMP Merger Agreement, the Company agreed to merge OMP into a subsidiary of Crestwood and exchange all of its OMP common units and all of the limited liability company interests of OMP GP for $160.0 million in cash and 20,985,668 common units of Crestwood (the “OMP Merger”). The OMP Merger represented a strategic shift for the Company and qualified for reporting as a discontinued operation under ASC 205-20. See Note 13—Discontinued Operations for additional information. On February 1, 2022, the Company completed the OMP Merger. Immediately prior to the completion of the OMP Merger, the Company owned approximately 70% of OMP’s issued and outstanding common units. The Company recorded a pre-tax gain on sale of assets of $518.9 million, which included (i) the cash consideration of $160.0 million, (ii) the fair value of the Company’s retained investment in Crestwood of $568.3 million; less (iii) the book value of the Company’s investment in OMP of $198.0 million and (iv) transaction costs of $11.4 million. The gain on sale of assets was reported within income (loss) from discontinued operations attributable to Chord, net of income tax on the Company’s Consolidated Statement of Operations for the year ended December 31, 2022. OMP’s long-term debt consisted of the OMP Credit Facility and $450.0 million of 8.00% senior unsecured notes due April 1, 2029 (the “OMP Senior Notes”). As of December 31, 2021, there were $203.0 million of borrowings outstanding and $5.5 million of outstanding letters of credit issued under the OMP Credit Facility. OMP was in compliance with the financial covenants under the OMP Credit Facility as of December 31, 2021. As of December 31, 2021, OMP’s long-term debt was classified as held for sale on the Consolidated Balance Sheet. Upon consummation of the OMP Merger on February 1, 2022, Crestwood assumed the obligations pursuant to the OMP Senior Notes and paid in full all amounts due under the OMP Credit Facility. The Company had previously entered into several long-term, fee-based contractual arrangements with OMP for midstream services, including (i) natural gas gathering, compression, processing and gas lift supply services; (ii) crude oil gathering, terminaling and transportation services; (iii) produced and flowback water gathering and disposal services; and (iv) freshwater distribution services. In connection with the closing of the OMP Merger, these contracts were assigned to Crestwood, and the Company has continuing cash outflows to Crestwood for these services. See Note 14—Investment in Unconsolidated Affiliate for additional information. 2021 Divestitures Permian Basin Sale. On May 20, 2021, Oasis Petroleum Permian LLC (“OP Permian”), a wholly-owned subsidiary of the Company, entered into a purchase and sale agreement (the “Permian Basin Sale PSA”) with Percussion Petroleum Operating II, LLC (“Percussion”). Pursuant to the Permian Basin Sale PSA, OP Permian agreed to sell to Percussion its remaining upstream assets in the Texas region of the Permian Basin with an effective date of March 1, 2021, for an aggregate purchase price of $450.0 million (the “Permian Basin Sale”). The aggregate purchase price consisted of $375.0 million in cash at closing and up to three earn-out payments of $25.0 million per year for each of 2023, 2024 and 2025 (see Note 8—Fair Value Measurements for additional information). The Company completed the Permian Basin Sale on June 29, 2021 and received cash proceeds of $342.3 million. In addition, the Company divested certain wellbore interests in the Texas region of the Permian Basin to separate buyers in the second quarter of 2021 and received cash proceeds of $30.0 million. Well services. On March 22, 2021, the Company completed the sale of certain well services equipment and inventory in connection with its 2020 exit from the well services business for total consideration of $5.5 million, comprised of cash proceeds of $2.6 million and a $2.9 million promissory note. As of December 31, 2022, the remaining principal balance on the promissory note was immaterial. Midstream Simplification. On March 30, 2021, the Company contributed to OMP its remaining 64.7% limited liability company interest in Bobcat DevCo LLC and 30.0% limited liability company interest in Beartooth DevCo LLC, as well as eliminated OMP’s incentive distribution rights, in exchange for a cash distribution of $231.5 million and 12,949,644 common units in OMP (the “Midstream Simplification”). The Midstream Simplification was accounted for as a transaction between entities under common control. 2020 Divestitures Other. The Predecessor sold certain oil and gas properties through various transactions and recognized a net gain on sale of properties of $11.1 million during the period from January 1, 2020 through November 19, 2020 (Predecessor).