EXHIBIT 23.1 CORNELIUS, STEGENT & PRICE, LLP - -------------------------------------------------------------------------------- 24 E. Greenway Plaza, Suite 515 CERTIFIED PUBLIC ACCOUNTANTS Houston, Texas 77046 Tel (713)840-9300 Fax (713)840-0012 Consent of Independent Certified Public Accountants We have issued our report dated February 13, 2002, accompanying the financial statements of Bank of Tanglewood, N.A. for the years ended December 31, 2001 and 2000. We consent to the use of the aforementioned report in the Form S-4 for BOK Financial Corporation and to the reference to our firm under the caption "Experts." Cornelius, Stegent & Price, LLP /s/ CORNELIUS, STEGENT & PRICE, LLP Houston, Texas August 23, 2002