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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 fTbgLZLq+yLx6twFmI8zIw==

<SEC-DOCUMENT>0001248914-03-000004.txt : 20030715
<SEC-HEADER>0001248914-03-000004.hdr.sgml : 20030715
<ACCEPTANCE-DATETIME>20030715104655
ACCESSION NUMBER:		0001248914-03-000004
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030715
FILED AS OF DATE:		20030715

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CORBETT LUKE R
		CENTRAL INDEX KEY:			0001187268

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19341
		FILM NUMBER:		03786468

	MAIL ADDRESS:	
		STREET 1:		1910 BEDFORD DT
		CITY:			NICHOLS HILLS
		STATE:			OK
		ZIP:			73116

ISSUER:		

	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

	BUSINESS ADDRESS:	
		STREET 1:		BANK OF OKLAHOMA TOWER
		STREET 2:		PO BOX 2300
		CITY:			TULSA
		STATE:			OK
		ZIP:			74192
		BUSINESS PHONE:		9185953025

	MAIL ADDRESS:	
		STREET 1:		BANK OF OKLAHOMA TOWER
		STREET 2:		P O BOX 2300
		CITY:			TULSA
		STATE:			OK
		ZIP:			74192
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>

<ownershipDocument>

    <documentType>4</documentType>

    <periodOfReport>2003-07-15</periodOfReport>


    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000875357</issuerCik>
        <issuerName>BOK FINANCIAL CORP ET AL</issuerName>
        <issuerTradingSymbol>BOKF</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001187268</rptOwnerCik>
            <rptOwnerName>CORBETT LUKE R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeSecurity>
        <securityTitle>
            <value>Common Stock</value>
        </securityTitle>
        <transactionDate>
            <value>2003-07-15</value>
        </transactionDate>
        <transactionCoding>
            <transactionFormType>4</transactionFormType>
            <transactionCode>A</transactionCode>
            <equitySwapInvolved>0</equitySwapInvolved>
        </transactionCoding>
        <transactionTimeliness>
            <value></value>
        </transactionTimeliness>
        <transactionAmounts>
            <transactionShares>
                <value>50</value>
            </transactionShares>
            <transactionValue>
                <value>37.71</value>
            </transactionValue>
            <transactionAcquiredDisposedCode>
                <value>A</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>
        <postTransactionAmounts>
            <sharesOwnedFollowingTransaction>
                <value>1635</value>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>I</value>
            </directOrIndirectOwnership>
            <natureOfOwnership>
                <value>Lucius R. Corbett Trust</value>
            </natureOfOwnership>
        </ownershipNature>
    </nonDerivativeSecurity>


    <ownerSignature>
        <signatureName>Frederic Dorwart</signatureName>
        <signatureDate>2003-07-15</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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