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                                  UNITED STATES
                       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 19, 2006

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

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

    101 North Broadway, Oklahoma City, Oklahoma               73102
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      (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 (see General Instruction A.2. below):

[ ]  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))

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ITEM 2.02.  RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

     On  October  19,  2006,  BancFirst  Corporation  announced  its  results of
operations for the quarter ended September 30, 2006. 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.

ITEM 9.01.  FINANCIAL STATEMENTS AND EXHIBITS.

  (d)       Exhibits.

  EXHIBIT NO.  DESCRIPTION
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      99.1     Press Release, dated October 19, 2006, issued by BancFirst
               Corporation.



                                   SIGNATURES

     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.

                                                        BANCFIRST CORPORATION
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                                                        (Registrant)


Date:  October 19, 2006                                 /s/ Joe T. Shockley, Jr.
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                                                        (Signature)
                                                        Joe T. Shockley, Jr.
                                                        Executive Vice President
                                                        Chief Financial Officer