Exhibit No. 32.1

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Texas Pacific Land Trust (the “Trust”) on Form 10-Q for the quarter ended September 30, 2004 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Roy Thomas, Chief Executive Officer of the Trust, certifies, to the best of his knowledge, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that:

    (1)        The Report 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 Report fairly presents, in all material respects, the financial condition and results of operations of the Trust.

Date:  November 9, 2004 By: /s/ Roy Thomas                                                                   
       Roy Thomas, General Agent and
       Chief Executive Officer