The BOK Financial Corp. (Nasdaq: BOKF) Board of Directors declared a first quarter dividend April 29 on the company’s common stock of 22.5 cents per share, payable on or about May 29, 2008, to shareholders of record on May 15. The quarterly dividend will increase 12.5% from 20 cents over the last year.

BOK Financial is a regional financial services company that provides commercial and consumer banking, investment and trust services, mortgage origination and servicing, and an electronic funds transfer network. Holdings include Bank of Albuquerque, N.A., Bank of Arizona, N.A., Bank of Arkansas, N.A., Bank of Oklahoma, N.A., Bank of Texas, N.A., Colorado State Bank and Trust, N.A., Bank of Kansas City, N.A., BOSC, Inc., the TransFund electronic funds network and Southwest Trust Company, N.A. Shares of BOK Financial are traded on the NASDAQ under the symbol BOKF. For more information, visit www.bokf.com.

BOK Financial Corp.
Jesse Boudiette, 918-588-6532
Corporate Communications Manager