Permian Basin Royalty Trust
Southwest Bank, Trustee
P.O. Box 962020
Fort Worth, Texas 76162-2020
Deloitte & Touche LLP
Thompson & Knight L.L.P.
Winstead Sechrest & Minick, P.C.
American Stock Transfer & Trust Company, LLC
6201 15th Avenue
Brooklyn, NY 11219
If a violation of Southwest Bank's Standards of Conduct is suspected, we
encourage reporting of this to the Southwest Bank Hotline at 1-800-285-9658.