Organization and Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2024
Accounting Policies [Abstract]
Organization and Summary of Significant Accounting Policies	Organization and Summary of Significant Accounting Policies Chord Energy Corporation (together with its consolidated subsidiaries, the “Company” or “Chord”) is an independent exploration and production company with quality and sustainable long-lived assets primarily located in the Williston Basin. Basis of Presentation The accompanying unaudited condensed consolidated financial statements of the Company have not been audited by the Company’s independent registered public accounting firm, except that the Condensed Consolidated Balance Sheet at December 31, 2023 is derived from audited financial statements. In the opinion of management, all adjustments, consisting of normal recurring adjustments necessary for the fair statement of the Company’s financial position, have been included. Management has made certain estimates and assumptions that affect reported amounts in the unaudited condensed consolidated financial statements and disclosures of contingencies. Actual results may differ from those estimates. The results for interim periods are not necessarily indicative of annual results. These interim financial statements have been prepared pursuant to the rules and regulations of the SEC regarding interim financial reporting. Certain disclosures have been condensed or omitted from these financial statements. Accordingly, they do not include all of the information and notes required by GAAP for complete consolidated financial statements and should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 (“2023 Annual Report”). Enerplus Arrangement On February 21, 2024, the Company entered into an arrangement agreement (the “Arrangement Agreement”) with Enerplus Corporation, a corporation existing under the laws of the Province of Alberta, Canada (“Enerplus”), and Spark Acquisition ULC, an unlimited liability company organized and existing under the laws of the Province of Alberta, Canada and a wholly-owned subsidiary of the Company, pursuant to which, among other things, the Company agreed to acquire Enerplus in a stock-and-cash transaction (such transaction, the “Arrangement”). Enerplus was an independent North American oil and gas exploration and production company domiciled in Canada with substantially all of its producing assets in the Williston Basin of North Dakota, with limited non-operated interests in the Marcellus Shale. The transaction was effected by way of a plan of arrangement under the Business Corporations Act (Alberta). The Arrangement was completed on May 31, 2024. In connection with the Arrangement, the Board of Directors of Chord unanimously (i) determined the issuance of the shares of common stock, par value $0.01 per share, of Chord (the “Chord Stock Issuance”), and the amendment of Chord’s restated certificate of incorporation to increase the number of authorized shares of common stock from 120,000,000 to 240,000,000 shares of common stock (the “Chord Charter Amendment”) are fair to, and in the best interests of, Chord and the holders of common stock, (ii) approved and declared advisable the Chord Stock Issuance and Chord Charter Amendment and (iii) recommended that the holders of common stock approve the Chord Stock Issuance and Chord Charter Amendment. Under the terms of the Arrangement Agreement, Enerplus shareholders received 0.10125 shares of Chord common stock (the “Share Consideration”) and $1.84 per share in cash (the “Cash Consideration” and together with the Share Consideration, the “Arrangement Consideration”) in exchange for each share of Enerplus they owned at closing. The Arrangement has been accounted for under the acquisition method of accounting in accordance with the FASB ASC 805, Business Combinations (“ASC 805”). Chord was treated as the acquirer for accounting purposes. Under the acquisition method of accounting, the assets and liabilities of Enerplus have been recorded at their respective fair values as of the acquisition date on May 31, 2024. As provided under ASC 805, the purchase price allocation may be subject to change for up to one year after May 31, 2024. See Note 8—Acquisitions for additional information. Risks and Uncertainties As a producer of crude oil, NGLs and natural gas, the Company’s revenue, profitability and future growth are substantially dependent upon the prevailing and future prices for crude oil, NGLs and natural gas, which are dependent upon numerous factors beyond the Company’s control such as economic, geopolitical, political and regulatory developments and competition from other energy sources. The energy markets have historically been very volatile, and the prices for crude oil, NGLs or natural gas may be subject to wide fluctuations in the future. A substantial or extended decline in prices for crude oil and, to a lesser extent, NGLs and natural gas, could have a material adverse effect on the Company’s financial position, results of operations, cash flows, the quantities of crude oil, NGL and natural gas reserves that may be economically produced, the assessment of goodwill impairment, and the Company’s access to capital. Significant Accounting Policies Goodwill. In accordance with FASB ASC 350, Intangibles - Goodwill and Other, goodwill represents the excess of the purchase price over the estimated fair value of the net assets acquired in a business combination. Goodwill has an indefinite useful life and is not amortized, but rather is tested by the Company for impairment annually on October 1 or whenever events or changes in circumstances indicate that the fair value of the reporting unit may have been reduced below its carrying value. If the Company’s qualitative analysis indicates that it is more likely than not that the fair value of the reporting unit is less than its carrying value, the Company then performs a quantitative impairment test. If the carrying amount exceeds the fair value, an impairment loss is recognized for that excess amount. Circumstances that could indicate impairment and require the Company to assess for impairment include, but are not limited to, declines in the Company’s share performance coupled with adverse commodity prices. Unfavorable changes to these factors, or others, could result in goodwill impairment in future periods. Any such charge will not affect the Company’s cash flow from operating activities or liquidity. Other than the item disclosed above, there have been no material changes to the Company’s significant accounting policies and estimates from those disclosed in the 2023 Annual Report. Recent Accounting Pronouncements In November 2023, the FASB issued ASU No. 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures” (“ASU 2023-07”). This standard clarifies that single reportable segment entities are subject to the disclosure requirements under Topic 280 in its entirety. This ASU is effective for fiscal years beginning after December 15, 2023 and interim periods within those fiscal years beginning after December 15, 2024. The Company is currently evaluating this ASU to determine its impact on the Company’s annual financial statement disclosures. In December 2023, the FASB issued ASU 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures” to expand the disclosure requirements for income taxes, specifically relating to the effective tax rate reconciliation and additional disclosures on income taxes paid. The Company expects to adopt this ASU effective January 1, 2025, and the adoption is not expected to affect the Company’s financial position or results of operations, but will result in additional disclosures. In March 2024, the SEC released its final rule on climate-related disclosures, requiring the disclosure of certain climate-related risks, management and governance practices, and financial impacts, as well as greenhouse gas emissions. Large accelerated filers will be required to incorporate the applicable climate-related disclosures into their filings for annual reporting periods beginning in fiscal year 2025, with additional requirements relating to greenhouse gas emissions effective for annual reporting periods beginning in fiscal year 2026. In April 2024, the SEC paused implementation of the final rule pending the resolution of consolidated legal challenges that are currently proceeding before the U.S. Court of Appeals for the Eighth Circuit. The Company is currently evaluating the impact of this rule on its financial statements and related disclosures.