MARINE PETROLEUM TRUST

March 31, 2024

Note 1. Accounting Policies

The financial statements herein include the financial statements of Marine Petroleum Trust (the “Trust”) and its wholly owned subsidiary, Marine Petroleum Corporation (“MPC,” and collectively with the Trust, “Marine”). The financial statements are condensed and consolidated and should be read in conjunction with Marine’s Annual Report on Form 10-K for the fiscal year ended June 30, 2023. The financial statements included herein are unaudited, but in the opinion of Argent Trust Company (the “Trustee”), the Trustee of the Trust, they include all adjustments necessary for a fair presentation of the results of operations for the periods presented. Operating results for the interim periods reported herein are not necessarily indicative of the results that may be expected for the fiscal year ending June 30, 2024.

Note 2. Basis of Accounting

The financial statements of Marine are prepared on the modified cash basis method and are not intended to present Marine’s financial position and results of operations in conformity with generally accepted accounting principles in the United States (“GAAP”). Under the modified cash basis method the financial statements of Marine differ from financial statements prepared in conformity with GAAP because of the following:

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Royalty income is recognized in the month when received by Marine rather than in the month of production.

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Marine’s expenses (including accounting, legal, other professional fees, trustees’ fees and out-of-pocket expenses) are recorded on an actual paid basis in the month paid rather than in the month incurred. Reserves for liabilities that are contingent or uncertain in amount may also be established if considered necessary, which would not be recorded under GAAP.

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At the time the Trust was established, no determinable market value was available for the assets transferred to the Trust; consequently, nominal values were assigned. Accordingly, no allowance for depletion has been included. All income from oil and natural gas royalties relate to proved developed oil and natural gas reserves.

The modified cash basis method of accounting corresponds to the accounting principles permitted for royalty trusts by the U.S. Securities and Exchange Commission (the “SEC”), as specified by Staff Accounting Bulletin Topic 12:E, Financial Statements of Royalty Trusts. Because the Trust’s financial statements are prepared on the modified cash basis, as described above, most accounting pronouncements are not applicable to or do not have a significant impact on the Trust’s financial statements.

Note 3. Distributable Income

The Trust’s Indenture (the “Indenture”) provides that the Trustee is to distribute all cash in the Trust, less an amount reserved for payment of accrued liabilities and estimated future expenses, to unitholders of record on the 28th day of March, June, September and December of each year. If the 28th day falls on a Saturday, Sunday or legal holiday, the payments are to be made on the immediately succeeding business day. Total estimated reserve for future expenses deducted from calculated distributable income for the three months ended March 31, 2024 was $31,500.

As stated under “Note 1. Accounting Policies” above, the financial statements in this Quarterly Report on Form 10-Q are the condensed and consolidated financial statements of the Trust and MPC. However, distributable income is paid from the account balances of the Trust. Distributable income is comprised of (i) royalties from offshore Texas leases owned directly by the Trust, (ii) 98% of the royalties received from offshore Louisiana leases owned by MPC, which are retained by and delivered to the Trust on a quarterly basis, (iii) cash distributions from the Trust’s interest in Tidelands Royalty Trust “B” (“Tidelands”), a separate royalty trust, until Tidelands was wound up, (iv) dividends paid by MPC, less (v) administrative expenses incurred by the Trust. Distributions fluctuate from quarter to quarter primarily due to changes in oil and natural gas prices and production quantities and expenses incurred.

Note 4. Investment in Affiliate — Tidelands Royalty Trust “B”

At March 31, 2022, the Trust owned 32.6% of the outstanding units of beneficial interest in Tidelands, which entity was wound up prior to June 30, 2022. Due to Tidelands being wound up prior to June 30, 2022, there was no market underlying the 452,366 units owned by the Trust at the time Tidelands was wound up. A reserve of $123,193 has been established for future reporting and compliance issues that may arise in years to come and will be used for such transactions. Due to Tidelands being wound up prior to June 30, 2022, there was no income received for the three and nine months ended March 31, 2024 and 2023.

Tidelands was a reporting company under the Securities Exchange Act of 1934, as amended. On March 8, 2019, Tidelands terminated the registration of its units under Section 12(g) of the Exchange Act, and suspended its reporting obligations under Section 13(a) of the Exchange Act. As of that date, Tidelands’ obligations to file certain reports with the SEC, including annual, quarterly and current reports on Form 10-K, Form 10-Q and Form 8-K, respectively, were automatically and immediately suspended. The last regular distribution Marine received from Tidelands was in the fourth quarter of 2018. The term of Tidelands expired in 2021. Tidelands has been wound up and declared January 31, 2022 as the record date for the final distribution which was paid in February 2022.