    <SEC-DOCUMENT>0000950170-22-025527-index.html : 20221121
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    <ACCEPTANCE-DATETIME>20221121154704
    ACCESSION NUMBER:		0000950170-22-025527
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		24
    CONFORMED PERIOD OF REPORT:	20221121
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20221121
    DATE AS OF CHANGE:		20221121

    FILER:

    	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

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-14384
    		FILM NUMBER:		221405646

    	BUSINESS ADDRESS:
    		STREET 1:		100 NORTH BROADWAY AVE
    		CITY:			OKLAHOMA CITY
    		STATE:			OK
    		ZIP:			73102-8401
    		BUSINESS PHONE:		4052701000

    	MAIL ADDRESS:
    		STREET 1:		100 NORTH BROADWAY AVE
    		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>8-K
    <SEQUENCE>1
    <FILENAME>banf-20221121.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: banf-20221121.htm

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    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>banf-ex99_1.htm
    <DESCRIPTION>EX-99.1
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    Document 2 - file: banf-ex99_1.htm

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    <DESCRIPTION>GRAPHIC
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    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>14
    <FILENAME>banf-20221121_pre.xml
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    <TEXT>
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    <TYPE>EX-101.SCH
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    <TYPE>EXCEL
    <SEQUENCE>19
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    <SEQUENCE>20
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    <SEQUENCE>21
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    <TYPE>XML
    <SEQUENCE>22
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    <TYPE>JSON
    <SEQUENCE>24
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