-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 H8MvFezwBQoRxOk2p6MPSi+R2sHRrqvxc88N8F3tOY1uB3QTYvQlR/VGe2VLS6uF
 EjtkAyG6t+FJFAdCDoC/0Q==

<SEC-DOCUMENT>0001140361-03-001497.txt : 20030513
<SEC-HEADER>0001140361-03-001497.hdr.sgml : 20030513
<ACCEPTANCE-DATETIME>20030513165832
ACCESSION NUMBER:		0001140361-03-001497
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030512
FILED AS OF DATE:		20030513

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HACKETT JAMES T
		CENTRAL INDEX KEY:			0001185909

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-30176
		FILM NUMBER:		03696166

	BUSINESS ADDRESS:	
		STREET 1:		1001 FANNIN STREET
		STREET 2:		SUITE 1600
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DEVON ENERGY CORP/DE
		CENTRAL INDEX KEY:			0001090012
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				731567067
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		20 N BROADWAY
		STREET 2:		STE 1500
		CITY:			OKLAHOMA CITY
		STATE:			OK
		ZIP:			73102
		BUSINESS PHONE:		4052353611

	MAIL ADDRESS:	
		STREET 1:		20 N BROADWAY
		STREET 2:		STE 1500
		CITY:			OKLAHOMA CITY
		STATE:			OK
		ZIP:			73102

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DEVON DELAWARE CORP
		DATE OF NAME CHANGE:	19990707
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0101</schemaVersion>

<documentType>4</documentType>
<periodOfReport>2003-05-12</periodOfReport>
<notSubjectToSection16>0</notSubjectToSection16>
<issuer><issuerCik>0001090012</issuerCik>
        <issuerName>DEVON ENERGY CORP/DE</issuerName>
<issuerTradingSymbol>DVN</issuerTradingSymbol>
</issuer>
<reportingOwner>
<reportingOwnerId>
<rptOwnerCik>0001185909</rptOwnerCik>
            <rptOwnerName>HACKETT JAMES T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
<reportingOwnerRelationship>
<isDirector>0</isDirector>
<isOfficer>1</isOfficer>
<isTenPercentOwner>0</isTenPercentOwner>
<isOther>0</isOther>
<officerTitle>President &amp; COO</officerTitle>
<otherText></otherText>
</reportingOwnerRelationship>
</reportingOwner>
<nonDerivativeSecurity>
<securityTitle>
<value>Common</value>
</securityTitle>
<transactionDate>
<value>2003-05-12</value>
</transactionDate>
<transactionCoding>
<transactionFormType>4</transactionFormType>
<transactionCode>F</transactionCode>
<equitySwapInvolved>0</equitySwapInvolved>
</transactionCoding>
<transactionTimeliness>
<value></value>
</transactionTimeliness>
<transactionAmounts>
<transactionShares>
<value>47924</value>
</transactionShares>
<transactionValue>
<value>0</value>
</transactionValue>
<transactionAcquiredDisposedCode>
<value>D</value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>195975</value>
<footnoteId id="F1"/>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value>
</directOrIndirectOwnership>
<natureOfOwnership>
<value></value>
</natureOfOwnership>
</ownershipNature>
</nonDerivativeSecurity>
<footnotes>
<footnote id="F1">In addition to those shares owned directly, Reporting Person owns indirectly 41,291 shares held in the OEI Supplemental Benefit Plan and 453 shares held in the Ocean Retirement Savings Plan, all as of May 12, 2003.</footnote>
</footnotes>
<ownerSignature>
<signatureName>Janice A. Dobbs, Attorney-in-Fact for James T. Hackett</signatureName>
<signatureDate>2003-05-13</signatureDate>
</ownerSignature>
</ownershipDocument>

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