MARINE PETROLEUM TRUST
ANNOUNCES THIRD QUARTER CASH DISTRIBUTION

DALLAS, Texas, August 19, 2008 – U. S. Trust, as Trustee of the Marine Petroleum Trust (NASDAQ: MARPS), today declared a quarterly cash distribution to the holders of its units of beneficial interest of $.769788 per unit, payable on September 29, 2008, to unit holders of record on August 29, 2008.