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Cover Page
Feb. 01, 2022
Cover [Abstract]  
Document Type 8-K/A
Document Period End Date Feb. 01, 2022
Entity Registrant Name OASIS PETROLEUM INC.
Entity Incorporation, State or Country Code DE
Entity File Number 001-34776
Entity Tax Identification Number 80-0554627
Entity Address, Address Line One 1001 Fannin Street
Entity Address, Address Line Two Suite 1500
Entity Address, City or Town Houston
Entity Address, State or Province TX
Entity Address, Postal Zip Code 77002
City Area Code 281
Local Phone Number 404-9500
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock
Trading Symbol OAS
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Entity Central Index Key 0001486159
Amendment Flag true
Amendment Description EXPLANATORY NOTEOn February 7, 2022, Oasis Petroleum Inc. (the “Company”) filed a Current Report on Form 8-K (the “Initial Report”) to announce that on February 1, 2022, Oasis Midstream Partners LP (“OMP”) completed the transactions contemplated by that certain Agreement and Plan of Merger (the “Merger Agreement”), dated as of October 25, 2021, by and among OMP, Crestwood Equity Partners LP, a Delaware limited partnership (“Crestwood”), Project Falcon Merger Sub LLC, a Delaware limited liability company and direct wholly owned subsidiary of Crestwood, Project Phantom Merger Sub LLC, a Delaware limited liability company and direct wholly owned subsidiary of Crestwood, OMP GP LLC, a Delaware limited liability company and the general partner of OMP (“OMP GP”), and, solely for the purposes of Section 2.1(a)(i) of the Merger Agreement, Crestwood Equity GP LLC, the general partner of Crestwood. Pursuant to the Merger Agreement, the Company agreed to sell to Crestwood its entire ownership of OMP common units and all of the limited liability company interests of OMP GP in exchange for $160.0 million in cash and approximately 21 million common units representing limited partner interests of Crestwood (the “OMP Merger”). This Current Report on Form 8-K/A (the “Amendment”) amends and supplements the Initial Report to provide the historical financial statements and the pro forma financial information required by Item 9.01 of Form 8-K. No other modifications to the Initial Report are being made by this Amendment. This Amendment should be read in connection with the Initial Report, which provides a more complete description of the OMP Merger.