Marine Petroleum Trust Announces Cash Distribution for Third Quarter 2023, Payable on September 28, 2023

Marine Petroleum Trust (the Trust) is a royalty trust. The Trust is engaged in the administration and liquidation of rights to payments from certain oil and natural gas leases in the Gulf of Mexico, pursuant to license agreements and amendments between the Trust’s predecessors and Gulf Oil Corporation (Gulf). Its Indenture provides that the corporate trustee is to distribute all cash in the Trust, less an amount reserved for the payment of accrued liabilities and estimated future expenses, to unitholders of record on the last business day of February, May, August and November. The payments are to be made on the 28th day of September, December, March and June of each year. The Trust’s subsidiary, Marine Petroleum Corporation (MPC), holds title to interests in properties that are situated offshore of Louisiana. MPC is engaged in the administration and collection of royalties. MPC rights are generally referred to as overriding royalty interests in the oil and natural gas industry.