MTR / Mesa Royalty Trust - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

Mesa Royalty Trust
US ˙ NYSE ˙ US5906601068

Mga Batayang Estadistika
CIK 313364
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Mesa Royalty Trust
SEC Filings (Chronological Order)
Halaman ini menyediakan daftar lengkap dan kronologis dari Pengajuan SEC, tidak termasuk pengajuan kepemilikan yang kami sediakan di tempat lain.
August 18, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 18, 2025 Mesa Royalty Trus

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 18, 2025 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporati

August 18, 2025 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for August 2025 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — August 18, 2025 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of August 2025. Unitholders of record on August 29, 2

August 14, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended June 30, 2025 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from           to Commission File Number: 1-7884 MESA ROYALTY TRUS

July 18, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 18, 2025 Mesa Royalty Trust

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 18, 2025 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

July 18, 2025 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for July 2025 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — July 18, 2025 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of July 2025. Unitholders of record on July 31, 2025 will

June 18, 2025 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for June 2025 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — June 18, 2025 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of June 2025. Unitholders of record on June 30, 2025 will

June 18, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 18, 2025 Mesa Royalty Trust

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 18, 2025 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

May 19, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 19, 2025 Mesa Royalty Trust (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 19, 2025 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

May 19, 2025 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for May 2025 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — May 19, 2025 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of May 2025. Unitholders of record on May 30, 2025 will rec

May 15, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended March 31, 2025 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from           to Commission File Number: 1-7884 MESA ROYALTY TRU

April 18, 2025 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for April 2025 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — April 18, 2025 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of April 2025. Unitholders of record on April 30, 2025

April 18, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 18, 2025 Mesa Royalty Trust

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 18, 2025 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporatio

March 31, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 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, 2024 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from             to             Commis

March 31, 2025 EX-99

Summary Reserve Report from Miller and Lents

Exhibit 99 March 21, 2025 Ms. Elaina Rodgers, Vice President Trustee, Mesa Royalty Trust BNY Mellon Trust Company, N.A. US Client and Business Development 601 Travis, Floor 16 Houston, Texas 77002 Re: Estimates of Proved Reserves and Future Net Revenues for the Mesa Royalty Trust As of December 31, 2024 Dear Ms. Rodgers: At your request, Miller and Lents, Ltd. (M&L) performed an evaluation of the

March 21, 2025 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for March 2025 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — March 21, 2025 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of March 2025. Unitholders of record on March 31, 2025

March 21, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 21, 2025 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporatio

February 18, 2025 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for February 2025 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — February 18, 2025 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of February 2025. Unitholders of record on Februa

February 18, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 18, 2025 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

January 17, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 17, 2025 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporat

January 17, 2025 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for January 2025 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — January 17, 2025 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of January 2025. Unitholders of record on January 3

December 18, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 18, 2024 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

December 18, 2024 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for December 2024 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — December 18, 2024 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of December 2024. Unitholders of record on Decemb

November 19, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 19, 2024 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

November 19, 2024 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for November 2024 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — November 19, 2024 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of November 2024. Unitholders of record on Novemb

November 14, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended September 30, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from           to Commission File Number: 1-7884 MESA ROYALTY

October 21, 2024 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for October 2024 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — October 21, 2024 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of October 2024. Unitholders of record on October 3

October 21, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 21, 2024 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporat

September 20, 2024 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for September 2024 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — September 20, 2024 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of September 2024. Unitholders of record on Sep

September 20, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 20, 2024 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpor

August 20, 2024 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces There Will Be No Distribution for August 2024 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — August 20, 2024 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today that there will be no distribution paid for the month of August 2024 to holders

August 20, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 20, 2024 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporati

August 14, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended June 30, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from           to Commission File Number: 1-7884 MESA ROYALTY TRUS

July 19, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 19, 2024 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

July 19, 2024 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for July 2024 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — July 19, 2024 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of July 2024. Unitholders of record on July 31, 2024 will

June 18, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 18, 2024 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

June 18, 2024 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for June 2024 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — June 18, 2024 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of June 2024. Unitholders of record on June 28, 2024 will

May 21, 2024 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for May 2024 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — May 21, 2024 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of May 2024. Unitholders of record on May 31, 2024 will rec

May 21, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 21, 2024 Mesa Royalty Trust (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 21, 2024 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

May 15, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended March 31, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from           to Commission File Number: 1-7884 MESA ROYALTY TRU

April 18, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 18, 2024 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporatio

April 18, 2024 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for April 2024 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — April 18, 2024 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of April 2024. Unitholders of record on April 30, 2024

April 1, 2024 EX-97.1

Mesa Royalty Trust Clawback Policy

Exhibit 97.1 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., as Trustee CLAWBACK POLICY Purpose The purpose of this Clawback Policy (the “Policy”) of Mesa Royalty Trust (the “Trust”) is to provide for the recoupment of Erroneously Awarded Compensation from Covered Executives in the event of an Accounting Restatement. This Policy is designed to comply with Section 10D of the Sec

April 1, 2024 EX-99

Summary Reserve Report from Miller and Lents

Exhibit 99 March 27, 2024 Ms. Elaina Rodgers, Vice President Trustee, Mesa Royalty Trust BNY Mellon Trust Company, N.A. US Client and Business Development 601 Travis, Floor 16 Houston, Texas 77002 Re: Estimates of Proved Reserves and Future Net Revenues for the Mesa Royalty Trust As of December 31, 2023 Dear Ms. Rodgers: At your request, Miller and Lents, Ltd. (M&L) performed an evaluation of the

April 1, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 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, 2023 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from           to           Commission

March 19, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 19, 2024 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporatio

March 19, 2024 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for March 2024 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — March 19, 2024 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of March 2024. Unitholders of record on March 29, 2024

February 16, 2024 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for February 2024 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — February 16, 2024 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of February 2024. Unitholders of record on Februa

February 16, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 16, 2024 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

February 6, 2024 SC 13G/A

MTR / Mesa Royalty Trust / WELLS FARGO & COMPANY/MN Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5) MESA ROYALTY TRUST (Name of Issuer) Units of Beneficial Interest (Title of Class of Securities) 590660106 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to

January 18, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 18, 2024 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporat

January 18, 2024 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for January 2024 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — January 18, 2024 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of January 2024. Unitholders of record on January 3

December 19, 2023 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for December 2023 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — December 19, 2023 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of December 2023. Unitholders of record on Decemb

December 19, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 19, 2023 Mesa Royalty Tr

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 19, 2023 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

November 20, 2023 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for November 2023 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — November 20, 2023 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of November 2023. Unitholders of record on Novemb

November 20, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 20, 2023 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

November 14, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended September 30, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from         to           Commission File Number: 1-7884 MESA

October 19, 2023 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for October 2023 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — October 19, 2023 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of October 2023. Unitholders of record on October 3

October 19, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 19, 2023 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporat

September 18, 2023 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for September 2023 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — September 18, 2023 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of September 2023. Unitholders of record on Sep

September 18, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 18, 2023 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpor

August 21, 2023 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for August 2023 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — August 21, 2023 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of August 2023. Unitholders of record on August 31, 2

August 21, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 21, 2023 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporati

August 14, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended June 30, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from          to           Commission File Number: 1-7884 MESA ROY

July 20, 2023 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for July 2023 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — July 20, 2023 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of July 2023. Unitholders of record on July 31, 2023 will

July 20, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 20, 2023 Mesa Royalty Trust

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 20, 2023 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

June 20, 2023 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for June 2023 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — June 20, 2023 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of June 2023. Unitholders of record on June 30, 2023 will

June 20, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 20, 2023 Mesa Royalty Trust

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 20, 2023 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

May 18, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 18, 2023 Mesa Royalty Trust (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 18, 2023 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

May 18, 2023 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for May 2023 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — May 18, 2023 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of May 2023. Unitholders of record on May 31, 2023 will rec

May 15, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period ended March 31, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from         to         Commission File Number: 1-7884 MESA ROYAL

April 18, 2023 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for April 2023 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — April 18, 2023 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of April 2023. Unitholders of record on April 28, 2023

April 18, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 18, 2023 Mesa Royalty Trust

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 18, 2023 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporatio

March 23, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 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, 2022 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from             to             Commis

March 23, 2023 EX-99

Summary Reserve Report from Miller and Lents

EX-99 5 tm231301d2ex99.htm EXHIBIT 99 Exhibit 99 March 15, 2023 Ms. Elaina Rodgers, Vice President Trustee, Mesa Royalty Trust BNY Mellon Trust Company, N.A. US Client and Business Development 601 Travis, Floor 16 Houston, Texas 77002 Re: Estimates of Proved Reserves and Future Net Revenues for the Mesa Royalty Trust As of December 31, 2022 Dear Ms. Rodgers: At your request, Miller and Lents, Ltd.

March 21, 2023 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for March 2023 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — March 21, 2023 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of March 2023. Unitholders of record on March 31, 2023

March 21, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 21, 2023 Mesa Royalty Trust

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 21, 2023 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporatio

February 17, 2023 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for February 2023 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — February 17, 2023 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of February 2023. Unitholders of record on Februa

February 17, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 tm237166d18k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 17, 2023 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Co

February 10, 2023 SC 13G/A

MTR / Mesa Royalty Trust / WELLS FARGO & COMPANY/MN Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4) MESA ROYALTY TRUST (Name of Issuer) Units of Beneficial Interest (Title of Class of Securities) 590660106 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to

January 20, 2023 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

EX-99.1 2 tm233969d1ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for January 2023 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — January 20, 2023 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of Janu

January 20, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 tm233969d18k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 20, 2023 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Com

December 20, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 tm2233098d18k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 20, 2022 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (C

December 20, 2022 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for December 2022 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? December 20, 2022 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced today the Trust income distribution for the month of December 2022. Unitholders of record on Decemb

November 18, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 18, 2022 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

November 18, 2022 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for November 2022 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? November 18, 2022 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced today the Trust income distribution for the month of November 2022. Unitholders of record on Novemb

November 14, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

? ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the Quarterly Period ended September 30, 2022 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the Transition Period from???????? ??? ????to???????? ??? ???? Commission

October 20, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 tm2228570d18k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 20, 2022 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Co

October 20, 2022 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

EX-99.1 2 tm2228570d1ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for October 2022 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — October 20, 2022 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of Oct

September 21, 2022 8-K/A

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 20, 2022 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (I

September 21, 2022 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for September 2022 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? September 21, 2022 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced a correction to the Trust?s income distribution for the month of September 2022 that was erroneou

September 20, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 tm2221340d28k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 20, 2022 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (

September 20, 2022 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for September 2022 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? September 20, 2022 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced today the Trust income distribution for the month of September 2022. Unitholders of record on Sep

August 19, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 19, 2022 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporati

August 19, 2022 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for August 2022 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? August 19, 2022 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced today the Trust income distribution for the month of August 2022. Unitholders of record on August 31, 2

August 15, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

? ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the Quarterly Period ended June 30, 2022 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the Transition Period from???????? ??to???????? ?? Commission File Number: 1-7

July 19, 2022 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for July 2022 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? July 19, 2022 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced today the Trust income distribution for the month of July 2022. Unitholders of record on July 29, 2022 will

July 19, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 19, 2022 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

June 17, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 17, 2022 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

June 17, 2022 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for June 2022 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? June 17, 2022 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced today the Trust income distribution for the month of June 2022. Unitholders of record on June 30, 2022 will

May 20, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2022 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

May 20, 2022 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

EX-99.1 2 tm2216153d1ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for May 2022 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — May 20, 2022 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today the Trust income distribution for the month of May 2022. U

May 16, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

? ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the Quarterly Period ended March 31, 2022 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the Transition Period from????????to??????? Commission File Number: 1-7884 ME

April 19, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 19, 2022 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporatio

April 19, 2022 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for April 2022 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? April 19, 2022 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced today the Trust income distribution for the month of April 2022. Unitholders of record on April 29, 2022

March 31, 2022 EX-99

Summary Reserve Report from Miller and Lents

Exhibit 99 March 30, 2022 Ms. Elaina Rodgers, Vice President Trustee, Mesa Royalty Trust BNY Mellon Trust Company, N.A. US Client and Business Development 601 Travis, Floor 16 Houston, Texas 77002 Re: Estimates of Proved Reserves and Future Net Revenues for the Mesa Royalty Trust As of December 31, 2021 Dear Ms. Rodgers: At your request, Miller and Lents, Ltd. (M&L) performed an evaluation of the

March 31, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

TABLE OF CONTENTS ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 21, 2022 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for March 2022 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? March 21, 2022 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced today the Trust income distribution for the month of March 2022. Unitholders of record on March 31, 2022

March 21, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 21, 2022 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporatio

February 18, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 18, 2022 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

February 18, 2022 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for February 2022 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? February 18, 2022 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced today the Trust income distribution for the month of February 2022. Unitholders of record on Februa

January 28, 2022 SC 13G/A

MTR / Mesa Royalty Trust / WELLS FARGO & COMPANY/MN Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3) MESA RTY TR (Name of Issuer) UNIT BEN INT (Title of Class of Securities) 590660106 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is

January 21, 2022 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for January 2022 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? January 21, 2022 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced today the Trust income distribution for the month of January 2022. Unitholders of record on January 3

January 21, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 21, 2022 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporat

December 17, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 17, 2021 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

December 17, 2021 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for December 2021 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? December 17, 2021 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced today the Trust income distribution for the month of December 2021. Unitholders of record on Decemb

November 18, 2021 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces There Will Be No Distribution for November 2021 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? November 18, 2021 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced today that there will be no distribution paid for the month of November 2021 to ho

November 18, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 18, 2021 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

November 15, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

? ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the Quarterly Period ended September 30, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the Transition Period from ??????? to ?????? Commission File Number: 1-78

October 19, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 19, 2021 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporat

October 19, 2021 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces There Will Be No Distribution for October 2021 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? October 19, 2021 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced today that there will be no distribution paid for the month of October 2021 to holde

September 20, 2021 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces There Will Be No Distribution for September 2021 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? September 20, 2021 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced today that there will be no distribution paid for the month of September 2021 to

September 20, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 20, 2021 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpor

August 20, 2021 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces There Will Be No Distribution for August 2021 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? August 20, 2021 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced today that there will be no distribution paid for the month of August 2021 to holders

August 20, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 20, 2021 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporati

August 16, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

? ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the Quarterly Period ended June 30, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the Transition Period from ??????? to ?????? Commission File Number: 1-7884 ME

July 20, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 20, 2021 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

July 20, 2021 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for July 2021 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? July 20, 2021 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced today the Trust income distribution for the month of July 2021. Unitholders of record on July 30, 2021 will

June 21, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 18, 2021 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

June 21, 2021 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for June 2021 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? June 18, 2021 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced today the Trust income distribution for the month of June 2021. Unitholders of record on June 30, 2021 will

May 20, 2021 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for May 2021 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? May 20, 2021 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced today the Trust income distribution for the month of May 2021. Unitholders of record on May 30, 2021 will rec

May 20, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2021 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

May 17, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

? ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the Quarterly Period ended March 31, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the Transition Period from???????? ??to Commission File Number: 1-7884 MESA R

April 20, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 20, 2021 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporatio

April 20, 2021 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces There Will Be No Distribution for April 2021 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? April 20, 2021 ? Mesa Royalty Trust (the ?Trust?) (NYSE symbol-MTR) announced today that there will be no distribution paid for the month of April 2021 to holders of

March 31, 2021 EX-99

Summary Reserve Report from Miller and Lents

Exhibit 99 March 16, 2021 Ms. Elaina Rodgers, Vice President Trustee, Mesa Royalty Trust BNY Mellon Trust Company, N.A. US Client and Business Development 601 Travis, Floor 16 Houston, Texas 77002 Re: Estimates of Proved Reserves and Future Net Revenues for the Mesa Royalty Trust As of December 31, 2020 Dear Ms. Rodgers: At your request, Miller and Lents, Ltd. (M&L) performed an evaluation of the

March 31, 2021 10-K

Annual Report - 10-K

TABLE OF CONTENTS ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 19, 2021 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces There Will Be No Distribution for March 2021 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — March 19, 2021 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today that there will be no distribution paid for the month of March 2021 to holders of

March 19, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 19, 2021 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporatio

February 16, 2021 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

EX-99.1 2 tm216563d1ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces There Will Be No Distribution for February 2021 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — February 16, 2021 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today that there will be no distributi

February 16, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 16, 2021 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

February 11, 2021 SC 13G/A

SCHEDULE 13G SIGNATURE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2) MESA RTY TR (Name of Issuer) UNIT BEN INT (Title of Class of Securities) 590660106 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is

January 19, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 19, 2021 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporat

January 19, 2021 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces There Will Be No Distribution for January 2021 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — January 19, 2021 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today that there will be no distribution paid for the month ended January 2021 to ho

December 16, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 16, 2020 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

December 16, 2020 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces There Will Be No Distribution for December 2020 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — December 16, 2020 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today that there will be no distribution paid for the month of December 2020 to ho

November 20, 2020 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces There Will Be No Distribution for November 2020 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — November 20, 2020 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today that there will be no distribution paid for the month ended November 2020 to

November 20, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 20, 2020 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

November 16, 2020 10-Q

Quarterly Report - 10-Q

QuickLinks - Click here to rapidly navigate through this document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

October 20, 2020 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces There Will Be No Distribution for October 2020 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — October 20, 2020 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today that there will be no distribution paid for the month of October 2020 to holde

October 20, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 20, 2020 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporat

September 18, 2020 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces There Will Be No Distribution for September 2020 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — September 18, 2020 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today that there will be no distribution paid for the month ended September 2020

September 18, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 18, 2020 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpor

August 21, 2020 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces There Will Be No Distribution for August 2020 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — August 21, 2020 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today that there will be no distribution paid for the month ended August 2020 to holde

August 21, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 21, 2020 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporati

August 14, 2020 10-Q

Quarterly Report - 10-Q

QuickLinks - Click here to rapidly navigate through this document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

July 21, 2020 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces There Will Be No Distribution for July 2020 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — July 21, 2020 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today that there will be no distribution paid for the month ended July 2020 to holders of

July 21, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 21, 2020 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

June 19, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 19, 2020 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

June 19, 2020 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces There Will Be No Distribution for June 2020 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — June 19, 2020 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced today that there will be no distribution paid for the month ended June 2020 to holders of

May 19, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 19, 2020 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

May 19, 2020 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for May 2020 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — May 19, 2020 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced the Trust income distribution for the month of May 2020. Unitholders of record on May 29, 2020 will receive d

May 15, 2020 10-Q

Quarterly Report - 10-Q

QuickLinks - Click here to rapidly navigate through this document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 21, 2020 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for April 2020 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — April 20, 2020 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced the Trust income distribution for the month of April 2020. Unitholders of record on April 30, 2020 will r

April 21, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 20, 2020 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporatio

March 30, 2020 EX-4.(F)

Description of Trust Units (Incorporated by reference to Exhibit 4(f) to the Trust’s Annual Report on Form 10-K for the year ended December 31, 2019)

QuickLinks - Click here to rapidly navigate through this document Exhibit 4(f) DESCRIPTION OF THE UNITS The following description of the units of beneficial interest of Mesa Royalty Trust (the "Trust") is a summary and does not purport to be complete.

March 30, 2020 10-K

MTR / Mesa Royalty Trust 10-K - Annual Report - 10-K

Use these links to rapidly review the document TABLE OF CONTENTS PART IV Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 30, 2020 EX-99

Summary Reserve Report from Miller and Lents

Exhibit 99 March 13, 2020 Ms. Elaina Rodgers, Vice President Trustee, Mesa Royalty Trust BNY Mellon Trust Company, N. A. US Client and Business Development 601 Travis, Floor 16 Houston, Texas 77002 Re: Estimates of Proved Reserves and Future Net Revenues for the Mesa Royalty Trust As of December 31, 2019 Dear Ms. Rodgers: At your request, Miller and Lents, Ltd. (M&L) performed an evaluation of the

March 27, 2020 8-K/A

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 20, 2020 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS E

March 27, 2020 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for March 2020 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — March 27, 2020 — Mesa Royalty Trust (NYSE symbol-MTR) announced a correction to the Trust’s income distribution for the month of March 2020 that was erroneously reported in the press

March 20, 2020 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for March 2020 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — March 20, 2020 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced the Trust income distribution for the month of March 2020. Unitholders of record on March 31, 2020 will r

March 20, 2020 8-K

Results of Operations and Financial Condition, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 20, 2020 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporatio

February 18, 2020 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for February 2020 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — February 18, 2020 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced the Trust income distribution for the month of February 2020. Unitholders of record on February 28,

February 18, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 18, 2020 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

February 4, 2020 SC 13G

MTR / Mesa Royalty Trust / WELLS FARGO & COMPANY/MN Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1) MESA RTY TR (Name of Issuer) UNIT BEN INT (Title of Class of Securities) 590660106 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is

January 31, 2020 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for January 2020 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — January 31, 2020 — Mesa Royalty Trust (NYSE symbol-MTR) announced a correction to the Trust’s income distribution for the month of January 2020 that was erroneously reported in the

January 31, 2020 8-K/A

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 21, 2020 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS

January 21, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 21, 2020 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporat

January 21, 2020 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for January 2020 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — January 21, 2020 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced the Trust income distribution for the month of January 2020. Unitholders of record on January 31, 202

December 19, 2019 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for December 2019 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — December 19, 2019 — Mesa Royalty Trust (the “Trust”) (NYSE symbol-MTR) announced the Trust income distribution for the month of December 2019. Unitholders of record on December 31,

December 19, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 19, 2019 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

November 19, 2019 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for November 2019 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — November 19, 2019 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of November 2019. Unitholders of record on Novemer 29, 2019 will rece

November 19, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 19, 2019 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

November 14, 2019 10-Q

MTR / Mesa Royalty Trust 10-Q - Quarterly Report - 10-Q

QuickLinks - Click here to rapidly navigate through this document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

October 18, 2019 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for October 2019 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — October 18, 2019 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of October 2019. Unitholders of record on October 31, 2019 will receive

October 18, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 18, 2019 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporat

September 19, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 19, 2019 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpor

September 19, 2019 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for September 2019 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — September 19, 2019 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of September 2019. Unitholders of record on September 30, 2019 will

August 19, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 19, 2019 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporati

August 19, 2019 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for August 2019 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — August 19, 2019 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of August 2019. Unitholders of record on August 30, 2019 will receive dis

August 14, 2019 10-Q

MTR / Mesa Royalty Trust 10-Q - Quarterly Report - 10-Q

QuickLinks - Click here to rapidly navigate through this document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

July 18, 2019 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for July 2019 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — July 18, 2019 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of July 2019. Unitholders of record on July 31, 2019 will receive distributio

July 18, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 18, 2019 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

June 18, 2019 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for June 2019 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — June 18, 2019 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of June 2019. Unitholders of record on June 28, 2019 will receive distributio

June 18, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 18, 2019 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

May 20, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2019 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

May 20, 2019 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for May 2019 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — May 20, 2019 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of May 2019. Unitholders of record on May 31, 2019 will receive distributions a

May 15, 2019 10-Q

MTR / Mesa Royalty Trust 10-Q Quarterly Report 10-Q

QuickLinks - Click here to rapidly navigate through this document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 17, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 17, 2019 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporatio

April 17, 2019 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for April 2019 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — April 17, 2019 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of April 2019. Unitholders of record on April 30, 2019 will receive distrib

April 1, 2019 10-K

MTR / Mesa Royalty Trust 10-K (Annual Report)

Use these links to rapidly review the document TABLE OF CONTENTS PART IV Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 1, 2019 EX-99.1

Summary Reserve Report from DeGolyer and MacNaughton

QuickLinks - Click here to rapidly navigate through this document Exhibit 99.1 DEGOLYER AND MACNAUGHTON 5001 SPRING VALLEY ROAD SUITE 800 EAST DALLAS, TEXAS 75244 March 29, 2019 Mesa Royalty Trust 919 Congress Avenue Suite 500 Austin, Texas 78701 Ladies and Gentlemen: Pursuant to your request, this report of third party presents an independent evaluation, as of December 31, 2018, of the extent and

March 18, 2019 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for March 2019 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — March 18, 2019 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of March 2019. Unitholders of record on March 29, 2019 will receive distrib

March 18, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 18, 2019 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporatio

February 19, 2019 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for February 2019 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — February 19, 2019 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of February 2019. Unitholders of record on February 28, 2019 will rec

February 19, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 18, 2019 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

January 22, 2019 SC 13G

MTR / Mesa Royalty Trust / WELLS FARGO & COMPANY/MN Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. ) MESA RTY TR (Name of Issuer) UNIT BEN INT (Title of Class of Securities) 590660106 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is f

January 18, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 18, 2019 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporat

January 18, 2019 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for January 2019 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — January 18, 2019 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of January 2019. Unitholders of record on January 31, 2019 will receive

December 17, 2018 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for December 2018 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — December 17, 2018 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of December 2018. Unitholders of record on December 31, 2018 will rec

December 17, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 17, 2018 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

November 19, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 19, 2018 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

November 19, 2018 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for November 2018 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — November 19, 2018 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of November 2018. Unitholders of record on November 30, 2018 will rec

November 14, 2018 10-Q

MTR / Mesa Royalty Trust 10-Q (Quarterly Report)

QuickLinks - Click here to rapidly navigate through this document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

October 17, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 17, 2018 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporat

October 17, 2018 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

EX-99.1 2 a18-368321ex99d1.htm EX-99.1 Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for October 2018 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — October 17, 2018 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of October 2018. Unitholders of

September 17, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 17, 2018 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpor

September 17, 2018 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for September 2018 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — September 17, 2018 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of September 2018. Unitholders of record on September 28, 2018 will

August 20, 2018 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for August 2018 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — August 20, 2018 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of August 2018. Unitholders of record on August 31, 2018 will receive dis

August 20, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 20, 2018 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporati

August 14, 2018 10-Q

MTR / Mesa Royalty Trust 10-Q (Quarterly Report)

QuickLinks - Click here to rapidly navigate through this document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

July 26, 2018 8-K/A

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 19, 2018 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Em

July 26, 2018 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for July 2018 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — July 26, 2018 — Mesa Royalty Trust (NYSE symbol-MTR) announced a correction to the Trust’s income distribution for the month of July 2018 that was erroneously reported in the press rel

July 19, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 19, 2018 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

July 19, 2018 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for July 2018 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — July 19, 2018 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of July 2018. Unitholders of record on July 31, 2018 will receive distributio

June 15, 2018 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for June 2018 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — June 15, 2018 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of June 2018. Unitholders of record on June 29, 2018 will receive distributio

June 15, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 15, 2018 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

May 18, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 18, 2018 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporation

May 18, 2018 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for May 2018 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — May 18, 2018 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of May 2018. Unitholders of record on May 31, 2018 will receive distributions a

May 15, 2018 10-Q

Quarterly Report - 10-Q

QuickLinks - Click here to rapidly navigate through this document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 18, 2018 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for April 2018 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — April 18, 2018 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of April 2018. Unitholders of record on April 30, 2018 will receive distrib

April 18, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 18, 2018 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporatio

April 2, 2018 EX-99.1

Summary Reserve Report from DeGolyer and MacNaughton

Exhibit 99.1 DEGOLYER AND MACNAUGHTON 5001 SPRING VALLEY ROAD SUITE 800 EAST DALLAS, TEXAS 75244 This is a digital representation of a DeGolyer and MacNaughton report. Each file contained herein is intended to be a manifestation of certain data in the subject report and as such is subject to the definitions, qualifications, explanations, conclusions, and other conditions thereof. The information a

April 2, 2018 10-K

MTR / Mesa Royalty Trust 10-K (Annual Report)

Use these links to rapidly review the document TABLE OF CONTENTS PART IV Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 19, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 19, 2018 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporatio

March 19, 2018 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for March 2018 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS — March 19, 2018 — Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of March 2018. Unitholders of record on March 30, 2018 will receive distrib

February 16, 2018 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for February 2018 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS ? February 16, 2018 ? Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of February 2018. Unitholders of record on February 28, 2018 will rec

February 16, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 16, 2018 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

January 19, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 19, 2018 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporat

January 19, 2018 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for January 2018 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS January 19, 2018 ? Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of January 2018. Unitholders of record on January 31, 2018 will receive d

December 19, 2017 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for December 2017 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS December 19, 2017 ? Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of December 2017. Unitholders of record on December 29, 2017 will recei

December 19, 2017 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 19, 2017 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

November 17, 2017 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 17, 2017 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpora

November 17, 2017 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for November 2017 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS November 17, 2017 ? Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of November 2017. Unitholders of record on November 30, 2017 will recei

November 14, 2017 10-Q

MTR / Mesa Royalty Trust 10-Q (Quarterly Report)

QuickLinks - Click here to rapidly navigate through this document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

October 19, 2017 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for October 2017 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS October 19, 2017 ? Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of October 2017. Unitholders of record on October 31, 2017 will receive d

October 19, 2017 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 19, 2017 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporat

September 18, 2017 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 18, 2017 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorpor

September 18, 2017 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for September 2017 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS September 18, 2017 ? Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of September 2017. Unitholders of record on September 29, 2017 will r

August 17, 2017 EX-99.1

601 Travis Street, Floor 16, Houston, TX 77002

Exhibit 99.1 Mesa-Royalty-Trust Mesa Royalty Trust Announces Trust Income for August 2017 MESA ROYALTY TRUST The Bank of New York Mellon Trust Company, N.A., Trustee NEWS RELEASE FOR IMMEDIATE RELEASE HOUSTON, TEXAS August 17, 2017 ? Mesa Royalty Trust (NYSE symbol-MTR) announced the Trust income distribution for the month of August 2017. Unitholders of record on August 31, 2017 will receive distr

August 17, 2017 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 17, 2017 Mesa Royalty Trust (Exact name of registrant as specified in its charter) Texas 1-7884 76-6284806 (State or other jurisdiction of (Commission (IRS Employer incorporati

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