ORGANIZATION, BUSINESS OPERATIONS, CORPORATE REORGANIZATION AND PRESENTATION AND CONSOLIDATION	6 Months Ended
Jun. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
ORGANIZATION, BUSINESS OPERATIONS, CORPORATE REORGANIZATION AND PRESENTATION AND CONSOLIDATION	1. ORGANIZATION, BUSINESS OPERATIONS, CORPORATE REORGANIZATION AND PRESENTATION AND CONSOLIDATION Organization. Summit Midstream Corporation (including its subsidiaries, collectively the “Company”) was incorporated under the laws of the State of Delaware on May 14, 2024 for the purpose of effecting the reorganization (the “Corporate Reorganization”) of Summit Midstream Partners, LP, a Delaware master limited partnership (“SMLP”), in which the Company was incorporated to serve as the new parent holding company of SMLP. The Company’s common stock, par value $0.01 per share (“common stock”), is listed on the New York Stock Exchange (“NYSE”) under the ticker symbol “SMC.” SMLP was formed in May 2012, and prior to August 1, 2024, SMLP’s common units were listed on the NYSE under the ticker symbol “SMLP.” Upon completion of the Tall Oak Acquisition (as defined herein) on December 2, 2024, ownership of SMLP shifted to an Up‑C tax structure, with the Company owning SMLP alongside holders of a noncontrolling limited partnership interest. The Company is a value-oriented company focused on developing, owning and operating midstream energy infrastructure assets that are strategically located in the core producing areas of unconventional resource basins, primarily shale formations, in the continental United States. The Company’s business activities are primarily conducted through various operating subsidiaries, each of which is owned or controlled by its subsidiary holding company, Summit Midstream Holdings, LLC, a Delaware limited liability company (“Summit Holdings”). Business Operations. The Company provides natural gas gathering, compression, treating and processing services as well as crude oil and produced water gathering services pursuant to primarily long-term, fee-based agreements with its customers. In addition to these services, the Company also provides freshwater delivery services pursuant to short-term agreements with customers. The Company’s results are primarily driven by the volumes of natural gas that it transports, gathers, compresses, treats and/or processes as well as by the volumes of crude oil and produced water that it gathers. Corporate Reorganization. In connection with the Corporate Reorganization, SMLP entered into an Agreement and Plan of Merger (the “Merger Agreement”), by and among SMLP, the Company, Summit SMC NewCo, LLC (“Merger Sub”), a wholly owned subsidiary of the Company, and the General Partner. Pursuant to the Merger Agreement, Merger Sub merged with and into SMLP (the “Merger”), with SMLP continuing as the surviving entity and a wholly owned subsidiary of the Company, with (i) each then outstanding common unit representing limited partner interests in SMLP automatically converting into the right to receive one share of the Company’s common stock and (ii) each then outstanding Series A Preferred Unit automatically converting into the right to receive one share of Series A Preferred Stock. The Merger was accounted for as a common-control transaction between SMLP and Summit Midstream Corporation as a result of SMLP’s unitholders controlling both SMLP and Summit Midstream Corporation before and after the Merger. Upon consummation of the Corporate Reorganization, Summit Midstream Corporation recognized (i) income tax expense in its consolidated statements of operations for temporary differences that existed as of the date of the Corporate Reorganization, (ii) a tax benefit to equity due to changes in tax bases of assets and liabilities and (iii) a net deferred tax liability in its consolidated balance sheets. Upon completion of the Merger, SMLP’s common limited partner capital accounts were eliminated and replaced with shares of common stock, paid in capital, and retained deficit. Additionally, the Series A Preferred Units were exchanged for an equivalent number of shares of Series A Preferred Stock, with no substantive changes in contractual terms or investor cash flows. As a result of the Corporate Reorganization, periods prior to August 1, 2024 reflect Summit Midstream as a limited partnership, not a corporation. References to common units for periods prior to the Corporate Reorganization refer to common units of SMLP, and references to common stock for periods following the Corporate Reorganization refer to shares of common stock of the Company. The primary financial impacts of the Corporate Reorganization to the consolidated financial statements were (i) reclassification of the partnership capital accounts to equity accounts reflective of a corporation and (ii) income tax effects. Subsequent to the Corporate Reorganization, on December 2, 2024, the Company completed the Tall Oak Acquisition. As a result of the Tall Oak Acquisition, SMLP is treated as a partnership for U.S. federal income tax purposes and is now jointly owned by the Company and Tall Oak Parent, each with economic voting rights, and Tall Oak Parent now owns exchangeable non-economic Class B Common Stock with Company voting rights, resulting in an Up-C tax structure. The Company consolidates SMLP and presents Tall Oak Parent’s ownership of SMLP as a noncontrolling interest. See Note 3 - Acquisitions for additional information. Presentation and Consolidation. The Company prepares its condensed consolidated financial statements in accordance with GAAP as established by the FASB and pursuant to the rules and regulations of the SEC pertaining to interim financial information. The unaudited condensed consolidated financial statements contained in this report include all normal and recurring material adjustments that, in the opinion of management, are necessary for a fair statement of the financial position, results of operations and cash flows for the interim periods presented herein. These unaudited condensed consolidated financial statements and notes thereto should be read in conjunction with the consolidated financial statements and related notes that are included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024 (the “2024 Annual Report”). The Company makes estimates and assumptions that affect the reported amounts of assets and liabilities at the balance sheet dates, including fair value measurements, the reported amounts of revenues and expenses and the disclosure of commitments and contingencies. Although management believes these estimates are reasonable, actual results could differ from its estimates. The unaudited condensed consolidated financial statements include the assets, liabilities and results of operations of the Company. All intercompany transactions among the consolidated entities have been eliminated in consolidation. Comprehensive income or loss is the same as net income or loss for all periods presented.

Organization. Summit Midstream Corporation (including its subsidiaries, collectively the “Company”) was incorporated under the laws of the State of Delaware on May 14, 2024 for the purpose of effecting the reorganization (the “Corporate Reorganization”) of Summit Midstream Partners, LP, a Delaware master limited partnership (“SMLP”), in which the Company was incorporated to serve as the new parent holding company of SMLP. The Company’s common stock, par value $0.01 per share (“common stock”), is listed on the New York Stock Exchange (“NYSE”) under the ticker symbol “SMC.” SMLP was formed in May 2012, and prior to August 1, 2024, SMLP’s common units were listed on the NYSE under the ticker symbol “SMLP.” Upon completion of the Tall Oak Acquisition (as defined herein) on December 2, 2024, ownership of SMLP shifted to an Up‑C tax structure, with the Company owning SMLP alongside holders of a noncontrolling limited partnership interest.

The Company is a value-oriented company focused on developing, owning and operating midstream energy infrastructure assets that are strategically located in the core producing areas of unconventional resource basins, primarily shale formations, in the continental United States. The Company’s business activities are primarily conducted through various operating subsidiaries, each of which is owned or controlled by its subsidiary holding company, Summit Midstream Holdings, LLC, a Delaware limited liability company (“Summit Holdings”).

Business Operations. The Company provides natural gas gathering, compression, treating and processing services as well as crude oil and produced water gathering services pursuant to primarily long-term, fee-based agreements with its customers. In addition to these services, the Company also provides freshwater delivery services pursuant to short-term agreements with customers. The Company’s results are primarily driven by the volumes of natural gas that it transports, gathers, compresses, treats and/or processes as well as by the volumes of crude oil and produced water that it gathers.

Corporate Reorganization. In connection with the Corporate Reorganization, SMLP entered into an Agreement and Plan of Merger (the “Merger Agreement”), by and among SMLP, the Company, Summit SMC NewCo, LLC (“Merger Sub”), a wholly owned subsidiary of the Company, and the General Partner. Pursuant to the Merger Agreement, Merger Sub merged with and into SMLP (the “Merger”), with SMLP continuing as the surviving entity and a wholly owned subsidiary of the Company, with (i) each then outstanding common unit representing limited partner interests in SMLP automatically converting into the right to receive one share of the Company’s common stock and (ii) each then outstanding Series A Preferred Unit automatically converting into the right to receive one share of Series A Preferred Stock. The Merger was accounted for as a common-control transaction between SMLP and Summit Midstream Corporation as a result of SMLP’s unitholders controlling both SMLP and Summit Midstream Corporation before and after the Merger. Upon consummation of the Corporate Reorganization, Summit Midstream Corporation recognized (i) income tax expense in its consolidated statements of operations for temporary differences that existed as of the date of the Corporate Reorganization, (ii) a tax benefit to equity due to changes in tax bases of assets and liabilities and (iii) a net deferred tax liability in its consolidated balance sheets. Upon completion of the Merger, SMLP’s common limited partner capital accounts were eliminated and replaced with shares of common stock, paid in capital, and retained deficit. Additionally, the Series A Preferred Units were exchanged for an equivalent number of shares of Series A Preferred Stock, with no substantive changes in contractual terms or investor cash flows.

As a result of the Corporate Reorganization, periods prior to August 1, 2024 reflect Summit Midstream as a limited partnership, not a corporation. References to common units for periods prior to the Corporate Reorganization refer to common units of SMLP, and references to common stock for periods following the Corporate Reorganization refer to shares of common stock of the Company. The primary financial impacts of the Corporate Reorganization to the consolidated financial statements were (i) reclassification of the partnership capital accounts to equity accounts reflective of a corporation and (ii) income tax effects. Subsequent to the Corporate Reorganization, on December 2, 2024, the Company completed the Tall Oak Acquisition. As a result of the Tall Oak Acquisition, SMLP is treated as a partnership for U.S. federal income tax purposes and is now jointly owned by the Company and Tall Oak Parent, each with economic voting rights, and Tall Oak Parent now owns exchangeable non-economic Class B Common Stock with Company voting rights, resulting in an Up-C tax structure. The Company consolidates SMLP and presents Tall Oak Parent’s ownership of SMLP as a noncontrolling interest. See Note 3 - Acquisitions for additional information.

Presentation and Consolidation. The Company prepares its condensed consolidated financial statements in accordance with GAAP as established by the FASB and pursuant to the rules and regulations of the SEC pertaining to interim financial information. The unaudited condensed consolidated financial statements contained in this report include all normal and recurring material adjustments that, in the opinion of management, are necessary for a fair statement of the financial position, results of operations and cash flows for the interim periods presented herein. These unaudited condensed consolidated financial

The Company makes estimates and assumptions that affect the reported amounts of assets and liabilities at the balance sheet dates, including fair value measurements, the reported amounts of revenues and expenses and the disclosure of commitments and contingencies. Although management believes these estimates are reasonable, actual results could differ from its estimates.