UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION

                              Washington, DC 20549

                                    FORM 8-K

                                 CURRENT REPORT
     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

                Date of Report (Date of earliest event reported):
                                 October 6, 2005

                           BOK FINANCIAL CORPORATION 

             (Exact name of registrant as specified in its charter)


         Oklahoma                       000-19341              73-1373454     
         --------                       ---------              ----------     
(State or other jurisdiction           (Commission            (IRS Employer
     of incorporation)                 File Number)         Identification No.)


 Bank of Oklahoma Tower, Boston Avenue at Second Street, Tulsa, Oklahoma 74172 
                    (Address of principal executive offices)

               Registrant's telephone number, including area code:
                                 (918) 588-6000

               _____________________N/A___________________________

          (Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to 
simultaneously satisfy the filing obligation of the registrant under any of 
the following provisions:

|_| Written communications pursuant to Rule 425 under the Securities Act (17 CFR
230.425).

|_| Soliciting  material  pursuant to Rule 14a-12 under the Exchange Act (17 CFR
240.14a-12).

|_| Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
Act (17 CFR 240.14d-2(b)).

|_| Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
Act (17 CFR 240.13e-4(c)).



                    INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 502(b).  Departure of Directors.

In a letter to Mr. George Kaiser, Chairman of BOK Financial Corporation ("BOKF")
and Stanley  Lybarger,  President  and Chief  Executive  Officer of BOKF,  dated
October 5, 2005, Mr. Steven E. Moore, a current  director of BOKF,  respectfully
resigned  from the board of  directors  of BOKF.  Mr.  Moore  stated  that other
commitments were requiring him to adjust his priorities.



                                    Signature

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.



                                         BOK FINANCIAL CORPORATION
                                                                               
                                         By:  /s/  Steven E. Nell              
                                              -------------------------------- 
                                         Steven E. Nell
                                         Executive Vice President
                                         Chief Financial Officer
Date:  October 11, 2005