Divestitures	6 Months Ended
Divestitures	Jun. 30, 2022
Discontinued Operations and Disposal Groups [Abstract]
Divestitures	Divestitures 2022 Divestitures 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 LLC (“OMP GP”), the general partner of OMP, entered into an Agreement and Plan of Merger (the “OMP Merger Agreement”) with Crestwood and 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 10—Discontinued Operations. On February 1, 2022, the Company completed the OMP Merger and received $160.0 million in cash and 20,985,668 common units of Crestwood. The Company recorded a pre-tax gain on sale of $518.9 million, which was reported within income from discontinued operations attributable to Chord, net of income tax, on the Company’s Condensed Consolidated Statement of Operations for the six months ended June 30, 2022. The fair value of the Company’s retained investment in Crestwood as of February 1, 2022 was $568.3 million and was determined using Level 2 inputs based upon the quoted market price for Crestwood’s publicly traded common units adjusted to reflect a value discount due to a restriction on the Company's ability to sell the investment 90 days from the closing date. See Note 11—Investment in Unconsolidated Affiliate for additional information on the Company’s investment in Crestwood. In connection with the closing of the OMP Merger, certain contracts were assigned to Crestwood for midstream services and the Company has continuing cash outflows to Crestwood for these services. The Company has determined that Crestwood is a related party. See Note 11—Investment in Unconsolidated Affiliate for additional information. 2021 Divestitures 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 June 30, 2022, the interest rate on the promissory note was 11.6%, and the remaining principal balance was $0.9 million. 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. 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 6—Fair Value Measurements for additional information on the earn-out payments. 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.