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<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>UNITED STATES</B></P>

<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SECURITIES AND EXCHANGE COMMISSION</B></P>

<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Washington, D.C. 20549</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>FORM 8-K</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 12pt"><B>CURRENT
REPORT</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 12pt"><B>Pursuant
to Section 13 or 15(d) of the Securities Exchange Act of 1934</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-size: 12pt">&nbsp;&nbsp;</FONT></P>

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    <TD STYLE="width: 100%; font-size: 12pt; text-align: center">Date of Report (Date of earliest event reported): August 23, 2012</TD></TR>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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    <TD STYLE="width: 100%; border-bottom: windowtext 1pt solid; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 18pt">BANCFIRST
    CORPORATION</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt; text-align: center">(Exact name of registrant as specified in its charter)</TD></TR>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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    <TD STYLE="width: 32%; border-bottom: windowtext 1pt solid; font-size: 10pt; text-align: center">OKLAHOMA</TD>
    <TD STYLE="width: 35%; border-bottom: windowtext 1pt solid; font-size: 10pt; text-align: center">0-14384</TD>
    <TD STYLE="width: 33%; border-bottom: windowtext 1pt solid; font-size: 10pt; text-align: center">73-1221379</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt; text-align: center">(State or other jurisdiction <BR>
of incorporation)</TD>
    <TD STYLE="font-size: 10pt; text-align: center">(Commission<BR>
File Number)</TD>
    <TD STYLE="font-size: 10pt; text-align: center">(I.R.S. Employer<BR>
Identification No.)</TD></TR>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;&nbsp;</P>

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    <TD STYLE="font-size: 10pt; text-align: center">&nbsp;101 North Broadway, Oklahoma City, Oklahoma</TD>
    <TD STYLE="font-size: 10pt; text-align: center">73102&nbsp;&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%; border-top: Black 1pt solid; font-size: 10pt; text-align: center">(Address of principal executive offices)</TD>
    <TD STYLE="width: 50%; border-top: Black 1pt solid; font-size: 10pt; text-align: center">(Zip Code)</TD></TR>
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<TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%; font-size: 10pt">Registrant&rsquo;s telephone number, including area code</TD>
    <TD STYLE="width: 50%; border-bottom: windowtext 1pt solid; font-size: 10pt">(405) 270-1086</TD></TR>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">N/A</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Former name or former address, if changed
since last report.)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">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):</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings">&uml;</FONT> Written communications
pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings">&uml;</FONT> Soliciting
material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings">&uml;</FONT> Pre-commencement
communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings">&uml;</FONT> Pre-commencement
communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>&nbsp;</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Item 7.01 Regulation FD Disclosure</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">BancFirst Corporation Announces Declaration of Quarterly Dividend</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On August 23, 2012, BancFirst Corporation&rsquo;s
Board of Directors approved a $0.29 per share cash dividend on its common stock. The dividend is payable October 15, 2012, to shareholders
of record on September 30, 2012. This is an increase of 7.4% over the quarterly dividend that was paid in each of the previous
four quarters. Since going public in 1993, the company has increased its dividend each year.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SIGNATURES</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.75in">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.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-align: justify; text-indent: 0.75in">&nbsp;</P>

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<TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%; font-weight: bold">&nbsp;</TD>
    <TD STYLE="width: 50%; font-weight: bold; text-decoration: underline">BancFirst Corporation</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-left: 0.25in">(Registrant)</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>August 23, 2012&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
    <TD STYLE="border-bottom: windowtext 1pt solid">/s/<B> Joe T. Shockley, Jr.</B></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>Joe T. Shockley, Jr.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>Chief Financial Officer</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>(Principal Financial Officer)</TD></TR>
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{"company-data": {"conformed-name": "BANCFIRST CORP /OK/", "cik": "0000760498", "assigned-sic": "6021", "irs-number": "731221379", "state-of-incorporation": "OK", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-14384", "film-number": "121052372"}, "business-address": {"street1": "101 N BROADWAY STE 200", "city": "OKLAHOMA CITY", "state": "OK", "zip": "73102-8401", "phone": "4052701000"}, "mail-address": {"street1": "101 NORTH BROADWAY", "street2": "STE 200", "city": "OKLAHOMA CITY", "state": "OK", "zip": "73102-8401"}, "former-company": {"former-conformed-name": "UNITED COMMUNITY CORP", "date-changed": "19890401"}}
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): August 23, 2012
BANCFIRST
    CORPORATION
(Exact name of registrant as specified in its charter)
OKLAHOMA
0-14384
73-1221379
(State or other jurisdiction
of incorporation)
(Commission
File Number)
(I.R.S. Employer
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
N/A
(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))
Item 7.01 Regulation FD Disclosure
BancFirst Corporation Announces Declaration of Quarterly Dividend
On August 23, 2012, BancFirst Corporation's
Board of Directors approved a $0.29 per share cash dividend on its common stock. The dividend is payable October 15, 2012, to shareholders
of record on September 30, 2012. This is an increase of 7.4% over the quarterly dividend that was paid in each of the previous
four quarters. Since going public in 1993, the company has increased its dividend each year.
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
(Registrant)
August 23, 2012
/s/
Joe T. Shockley, Jr.
Joe T. Shockley, Jr.
Chief Financial Officer
(Principal Financial Officer)