Mach Natural Resources LP 2025年度报告

FORM 10-K________________________________________ (Mark One)ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2025OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period fromtoCommission file number 001-41849________________________________________ Mach Natural Resources LP (Exact name of registrant as specified in its charter) Securities registered pursuant to Section 12(b) of the Act: Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. YesNo Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. YesNo Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the SecuritiesExchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports);and (2) has been subject to such filing requirements for the past 90 days.YesNo Indicate by check mark whether the registrant has submitted electronically and posted on its corporate web site, if any, everyInteractive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during thepreceding 12 months (or for such shorter period that the registrant was required to submit and post such files).YesNo Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smallerreporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2of the Exchange Act. (Check one): Large accelerated filer Non-accelerated filer If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period forcomplying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of theeffectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C.7262(b)) by the registered public accounting firm that prepared or issued its audit report. If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements ofthe registrant included in the filing reflect the correction of an error to previously issued financial statements. Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis ofincentive-based compensation received by any of the registrant’s executive officers during the relevant recovery periodpursuant to §240.10D-1(b). Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).YesNo The aggregate market value of common units held by non-affiliates of the registrant on June30, 2025, based on the closing price of$14.44 for common units of the registrant as reported by the New York Stock Exchange, was approximately$423.8 million. The registrant had 168,218,770 common units outstanding as of March5, 2026. Table of Contents Table of Contents PART IItems 1 and 2. Businessand PropertiesItem 1A. Risk FactorsItem 1B. Unresolved Staff CommentsItem 1C. CybersecurityItem 3. Legal ProceedingsItem 4. Mine Safety DisclosuresPART IIItem 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of EquitySecuritiesItem 6. [ Reserved ]Item 7. Management’s Discussion and Analysis of Financial Condition and Results of OperationsResults of OperationsLiquidity and Capital ResourcesCritical Accounting Policies and EstimatesItem 7A. Quantitative and Qualitative Disclosures About Market RiskItem 8. Financial Statements and Supplementary DataItem 9. Changes in and Disagreements with Accountants on Accounting and Financial DisclosureItem 9A. Controls and ProceduresItem 9B. Other InformationItem 9C. Disclosure Regarding Foreign Jurisdictions that Prevent InspectionsPART IIIItem 10. Directors, Executive Officers and Corporate GovernanceItem 11. Executive CompensationItem 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder MattersItem 13. Certain Relationships and Related Transactions, and Director IndependenceItem 14. Principal Accountant Fees and ServicesPART IVItem 15. Exhibit and Financial Statement SchedulesItem 16. Form 10-K SummarySignatures GLOSSARY OF OIL AND GAS TERMS AND OTHER TERMS The terms and abbreviations defined in this section are used throughout this Annual Report on Form 10-K (this “Annual Report”): “Adjusted EBITDA.” Net income before (1) interest expense, net, (2) depreciation, depletion,