ORGANIZATION, BUSINESS OPERATIONS, AND PRESENTATION AND CONSOLIDATION	3 Months Ended
Mar. 31, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
ORGANIZATION, BUSINESS OPERATIONS, AND PRESENTATION AND CONSOLIDATION	1. ORGANIZATION, BUSINESS OPERATIONS, 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.” For all periods presented, the Company has operated in 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 U.S. 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. 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, 2025 (the “2025 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 management’s 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.” For all periods presented, the Company has operated in 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 U.S. 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.

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, 2025 (the “2025 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 management’s 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.