MESA ROYALTY TRUST/TX

For the period ended Dec 31, 2025. Filed Mar 30, 2026.

About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Mar 30, 2026

MTR$1.90-1.7%Stored close · as of Nov 9, 2026

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Contents

Cover page TABLE OF CONTENTS Item 1. Business Item 1A. Risk Factors Item 1B. Unresolved Staff Comments Item 1C. Cybersecurity

Item 2. Properties (no text here)

Item 3. Legal Proceedings Item 4. Mine Safety Disclosures

Item 5. Market for Registrant’s Common Equity, Related Unitholder Matters and Issuer Purchases of Equity Securities (no text here)

Item 6. [Reserved] (no text here)

Item 7. Trustee’s Discussion and Analysis of Financial Condition and Results of Operations Summary of Royalty Income, Production, Prices and Costs (Unaudited)Item 7A. Quantitative and Qualitative Disclosures About Market Risk Item 8. Financial Statements and Supplementary Data

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure (no text here)

Item 9A. Controls and Procedures

Item 9B. Other Information (no text here)

Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

Item 10. Directors, Executive Officers and Corporate Governance (no text here)

Item 11. Executive Compensation (no text here)

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Unitholder Matters

Item 13. Certain Relationships and Related Transactions, and Director Independence (no text here)

Item 14. Principal Accounting Fees and Services Item 15. Exhibits and Financial Statement Schedules SIGNATURES

Item 4. Mine Safety Disclosures

have a material adverse effect net to the Trust, in the event such matters were adjudicated or settled in a material amount and charges are made against royalty income, such charges could have a material impact on future royalty income.

Item 4.

Mine Safety Disclosures.

None.

ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.