EXHIBIT 23
CONSENT OF CAWLEY, GILLESPIE & ASSOCIATES INC.
[LETTERHEAD]
July 22, 2005
Permian Basin Royalty Trust
Bank of America, N.A., Trustee
901 Main Street, 17th Floor
Dallas, Texas 75202-3714
Gentlemen:
Cawley, Gillespie & Associates, Inc. hereby consents to the use of the oil and gas reserve information in the Permian Basin Royalty Trust Securities and Exchange Commission Form 10-K for the year ending December 31, 2004 as amended by Securities and Exchange Commission Form 10-K/A (Amendments No.1 and 2) based on reserve reports dated February 25, 2005, prepared by Cawley, Gillespie & Associates, Inc.
Submitted, | ||||
CAWLEY, GILLESPIE & ASSOCIATES, INC. | ||||
By: | /s/ KENNETH J. MVELLER | |||
Kenneth J. Mveller, Vice President |