EXHIBIT 32.1
Certification Required by Rule 13a-14(b) or
Rule 15d-14(b) and Section 906 of the Sarbanes-Oxley Act of 2002
In connection with the Quarterly Report of Permian Basin Royalty Trust (the “Trust”) on Form 10-Q for the quarterly period ended March 31, 2026, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, not in its individual capacity but solely as the trustee of the Trust, certifies pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to its knowledge:
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| ARGENT TRUST COMPANY, TRUSTEE FOR PERMIAN BASIN ROYALTY TRUST | |
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May 14, 2026
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| By: | /s/ NANCY WILLIS |
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| Nancy Willis, |
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| Director of Royalty Trust Services |
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| Argent Trust Company |
A signed original of this written statement required by Section 906 has been provided to the Trust and will be retained by the Trust and furnished to the Securities and Exchange Commission or its staff upon request.