UNITED STATES
                          U. S. SECURITIES AND EXCHANGE
                        COMMISSION Washington, D.C. 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 21, 2004

                              BANCFIRST CORPORATION
                              ---------------------
             (Exact name of registrant as specified in its charter)

           OKLAHOMA                      0-14384                 73-1221379
           --------                      -------                 ----------
(State or other jurisdiction of        (Commission            (I.R.S. Employer
        incorporation)                 File Number)          Identification No.)

       101 North Broadway, Oklahoma City, Oklahoma                  73102
       -------------------------------------------                  -----
          (Address of principal executive offices)               (Zip Code)

Registrant's telephone number, including area code  (405) 270-1086

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         (Former name or former address, if changed 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 240.13a-4(c))



Item 2.02. Results of Operations and Financial Condition.

      On October  21,  2004,  BancFirst  Corporation  announced  its  results of
operations for the quarter ended September 30, 2004. A copy of the related press
release  is being  filed as  Exhibit  99.1 to this Form 8-K and is  incorporated
herein by reference in its entirety.

                                   SIGNATURES

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

                                                  BANCFIRST CORPORATION
                                                      (Registrant)

Date: October 21, 2004                            /s/ Randy P. Foraker
                                                  ------------------------------
                                                            (Signature) 
                                                  Randy P. Foraker
                                                  Executive Vice President 
                                                  Chief  Risk Officer
                                                  Assistant Secretary/Treasurer
                                                  (Principal Accounting Officer)

                                  Exhibit Index

Exhibit Number
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99.1     Press Release, dated October 21, 2004, issued by BancFirst Corporation.


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