EXHIBIT 32.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO RULE 13A-14(B) OR RULE 15D-14(B) AND 18 U.S.C. SECTION 1350 In connection with the Annual Report on Form 10-K of The Meridian Resource Corporation (the "Company") for the year ended December 31, 2004, as filed with the Securities and Exchange Commission on the date hereof (the "Form 10-K"), I, Joseph A. Reeves, Jr., Chief Executive Officer of the Company, certify pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that: 1. The Form 10-K fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and 2. The information contained in the Form 10-K fairly presents, in all material respects, the financial condition and results of operations of the Company. Date: March 15, 2005 /s/ Joseph A. Reeves, Jr. ---------------------------------------- Joseph A. Reeves, Jr. Chief Executive Officer