    <SEC-DOCUMENT>0001193125-18-249881-index.html : 20180815
    <SEC-HEADER>0001193125-18-249881.hdr.sgml : 20180815
    <ACCEPTANCE-DATETIME>20180815172137
    ACCESSION NUMBER:		0001193125-18-249881
    CONFORMED SUBMISSION TYPE:	S-4/A
    PUBLIC DOCUMENT COUNT:		18
    FILED AS OF DATE:		20180815
    DATE AS OF CHANGE:		20180815

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			BOK FINANCIAL CORP ET AL
    		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:		S-4/A
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-226211
    		FILM NUMBER:		181021782

    	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
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>S-4/A
    <SEQUENCE>1
    <FILENAME>d492634ds4a.htm
    <DESCRIPTION>AMENDMENT NO. 1 TO FORM S-4
    <TEXT>
    Document 1 - file: d492634ds4a.htm

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    <TYPE>EX-5.1
    <SEQUENCE>2
    <FILENAME>d492634dex51.htm
    <DESCRIPTION>EX-5.1
    <TEXT>
    Document 2 - file: d492634dex51.htm

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    <DOCUMENT>
    <TYPE>EX-8.1
    <SEQUENCE>3
    <FILENAME>d492634dex81.htm
    <DESCRIPTION>EX-8.1
    <TEXT>
    Document 3 - file: d492634dex81.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-8.2
    <SEQUENCE>4
    <FILENAME>d492634dex82.htm
    <DESCRIPTION>EX-8.2
    <TEXT>
    Document 4 - file: d492634dex82.htm

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    <DOCUMENT>
    <TYPE>EX-23.1
    <SEQUENCE>5
    <FILENAME>d492634dex231.htm
    <DESCRIPTION>EX-23.1
    <TEXT>
    Document 5 - file: d492634dex231.htm

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    <TYPE>EX-23.2
    <SEQUENCE>6
    <FILENAME>d492634dex232.htm
    <DESCRIPTION>EX-23.2
    <TEXT>
    Document 6 - file: d492634dex232.htm

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    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>7
    <FILENAME>d492634dex991.htm
    <DESCRIPTION>EX-99.1
    <TEXT>
    Document 7 - file: d492634dex991.htm

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    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>8
    <FILENAME>d492634dex992.htm
    <DESCRIPTION>EX-99.2
    <TEXT>
    Document 8 - file: d492634dex992.htm

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    <SEQUENCE>9
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    <DESCRIPTION>GRAPHIC
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    Document 9 - file: g492634dsp4.gif

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    <DESCRIPTION>GRAPHIC
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    Document 10 - file: g492634dsp8.gif

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    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: g492634g26x84.jpg

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    <FILENAME>g492634g43n25.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: g492634g43n25.jpg

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    <SEQUENCE>13
    <FILENAME>g492634g45i44.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: g492634g45i44.jpg

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    <SEQUENCE>14
    <FILENAME>g492634g52c75.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: g492634g52c75.jpg

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    <FILENAME>g492634g54c90.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: g492634g54c90.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>g492634g90v75.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: g492634g90v75.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>g492634img1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: g492634img1.jpg

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    <SEQUENCE>18
    <FILENAME>g492634img2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: g492634img2.jpg

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