-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 MV9L+IvAi4eVeLR1puxz1uZe245GqKrbcPaTUWmAop+fz5AyUq2srqfULG9GC3zQ
 2JL3LTMhnzwJRrW4flKNQA==

<SEC-DOCUMENT>0001187777-05-000001.txt : 20050222
<SEC-HEADER>0001187777-05-000001.hdr.sgml : 20050222
<ACCEPTANCE-DATETIME>20050222174627
ACCESSION NUMBER:		0001187777-05-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050101
FILED AS OF DATE:		20050222
DATE AS OF CHANGE:		20050222

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BAUMAN MARION C
		CENTRAL INDEX KEY:			0001187777

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-14384
		FILM NUMBER:		05632357

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		4052701044

	MAIL ADDRESS:	
		STREET 1:		101 N BROADWAY
		STREET 2:		C/O BANCFIRST CORP
		CITY:			OKLAHOMA CITY
		STATE:			OK
		ZIP:			73102

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BANCFIRST CORP /OK/
		CENTRAL INDEX KEY:			0000760498
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				731221379
		STATE OF INCORPORATION:			OK
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		101 N BROADWAY STE 200
		CITY:			OKLAHOMA CITY
		STATE:			OK
		ZIP:			73102-8401
		BUSINESS PHONE:		4052701000

	MAIL ADDRESS:	
		STREET 1:		101 NORTH BROADWAY
		STREET 2:		STE 200
		CITY:			OKLAHOMA CITY
		STATE:			OK
		ZIP:			73102-8401

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	UNITED COMMUNITY CORP
		DATE OF NAME CHANGE:	19890401
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-01-01</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0000760498</issuerCik>
        <issuerName>BANCFIRST CORP /OK/</issuerName>
        <issuerTradingSymbol>BANF</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001187777</rptOwnerCik>
            <rptOwnerName>BAUMAN MARION C</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>101 N BROADWAY</rptOwnerStreet1>
            <rptOwnerStreet2>C/O BANCFIRST CORP</rptOwnerStreet2>
            <rptOwnerCity>OKLAHOMA CITY</rptOwnerCity>
            <rptOwnerState>OK</rptOwnerState>
            <rptOwnerZipCode>73102</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Non-Qualified Stock Options (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>35</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2000-07-30</value>
            </exerciseDate>
            <expirationDate>
                <value>2014-07-30</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <ownerSignature>
        <signatureName>By: Randy Foraker   For: Marion Bauman</signatureName>
        <signatureDate>2005-02-22</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----