    <SEC-DOCUMENT>0000875357-23-000018-index.html : 20230331
    <SEC-HEADER>0000875357-23-000018.hdr.sgml : 20230331
    <ACCEPTANCE-DATETIME>20230331095834
    ACCESSION NUMBER:		0000875357-23-000018
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		11
    FILED AS OF DATE:		20230331
    DATE AS OF CHANGE:		20230331

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			BOK FINANCIAL CORP
    		CENTRAL INDEX KEY:			0000875357
    		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
    		IRS NUMBER:				731373454
    		STATE OF INCORPORATION:			OK
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-37811
    		FILM NUMBER:		23783923

    	BUSINESS ADDRESS:
    		STREET 1:		BANK OF OKLAHOMA TOWER
    		STREET 2:		BOSTON AVENUE AT SECOND STREET
    		CITY:			TULSA
    		STATE:			OK
    		ZIP:			74172
    		BUSINESS PHONE:		9185886000

    	MAIL ADDRESS:
    		STREET 1:		BANK OF OKLAHOMA TOWER
    		STREET 2:		P O BOX 2300
    		CITY:			TULSA
    		STATE:			OK
    		ZIP:			74192

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	BOK FINANCIAL CORP ET AL
    		DATE OF NAME CHANGE:	19950626
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>bokf2023proxy-supplementno1.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: bokf2023proxy-supplementno1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>bokfcorp-stkx2clra.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: bokfcorp-stkx2clra.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>bokfinancialcorporation_aud.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: bokfinancialcorporation_aud.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>bokfinancialcorporation_aue.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: bokfinancialcorporation_aue.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>bokfinancialcorporation_auf.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: bokfinancialcorporation_auf.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>bokfinancialcorporation_aug.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: bokfinancialcorporation_aug.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>imagea.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: imagea.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>kymes_stacyxsigxfulla.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: kymes_stacyxsigxfulla.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>performance-basedrestrictea.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: performance-basedrestrictea.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>tamarasloansignaturea.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: tamarasloansignaturea.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>trwsignaturea.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: trwsignaturea.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>