-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 GWktPApdn6/bQeTljHvTTz81kCuPhVJSbjoaL1GDIsCun4x5XTcQIfztePF9ioSo
 pNGik4lgTnv6ANxJgoCMpw==

<SEC-DOCUMENT>0001248914-03-000019.txt : 20031015
<SEC-HEADER>0001248914-03-000019.hdr.sgml : 20031013
<ACCEPTANCE-DATETIME>20031015142041
ACCESSION NUMBER:		0001248914-03-000019
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031015
FILED AS OF DATE:		20031015

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:		03941546

	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>

    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2003-10-15</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>1910 BEDFORD DT</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NICHOLS HILLS</rptOwnerCity>
            <rptOwnerState>OK</rptOwnerState>
            <rptOwnerZipCode>73116</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>

        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2003-10-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>48</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>38.98</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1683</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Lucius R. Corbett Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>

    </nonDerivativeTable>



    <ownerSignature>
        <signatureName>Frederic Dorwart</signatureName>
        <signatureDate>2003-10-15</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----