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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,
 V05a9mr4Zz2k2znQSwwxMuUwAPDuOCtoMdWmHXJZlw6ouS3iUUnmkzNMlLtd4ZOQ
 yJdlQAAG4+KtpatHH9h3XQ==

<SEC-DOCUMENT>0001179110-03-001137.txt : 20030521
<SEC-HEADER>0001179110-03-001137.hdr.sgml : 20030521
<ACCEPTANCE-DATETIME>20030521161733
ACCESSION NUMBER:		0001179110-03-001137
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030519
FILED AS OF DATE:		20030521

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WISE BRION G
		CENTRAL INDEX KEY:			0001228363

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10389
		FILM NUMBER:		03714708

	BUSINESS ADDRESS:	
		STREET 1:		C/O WESTERN GAS RESOURCES INC
		STREET 2:		1099 18TH STREET STE 1200
		CITY:			DENVER
		STATE:			CO
		ZIP:			80202
		BUSINESS PHONE:		3034525603

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WESTERN GAS RESOURCES INC
		CENTRAL INDEX KEY:			0000856716
		STANDARD INDUSTRIAL CLASSIFICATION:	NATURAL GAS TRANSMISSION [4922]
		IRS NUMBER:				841127613
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		12200 N PECOS ST
		CITY:			DENVER
		STATE:			CO
		ZIP:			80234-3439
		BUSINESS PHONE:		3034525603

	MAIL ADDRESS:	
		STREET 1:		12200 NORTH PECOS ST
		CITY:			DENVER
		STATE:			CO
		ZIP:			80234
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4 -2003-05-19
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument><schemaVersion>X0101</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-05-19</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000856716</issuerCik><issuerName>WESTERN GAS RESOURCES INC</issuerName>        <issuerTradingSymbol>WGR</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001228363</rptOwnerCik><rptOwnerName>WISE BRION G</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><officerTitle></officerTitle><otherText></otherText></reportingOwnerRelationship></reportingOwner><derivativeSecurity><securityTitle><value>Stock Options (Right to Buy)</value><
/securityTitle><conversionOrExercisePrice><value>38.76</value></conversionOrExercisePrice><transactionDate><value>2003-05-19</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>false</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>2000</value></transactionShares><transactionValue><value>0</value></transactionValue><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2004-05-19</value><footnoteId id="F1"/></exerciseDate><expirationDate><value>2009-05-18</value><footnoteId id="F1"/></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>2000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>20
00</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeSecurity><footnotes><footnote id="F1">Grant to Reporting Person of options to purchase 2000 shares of common stock of Western Gas Resources, Inc. Options vest in annual 1/3 increments commencing on the first anniversary of the grant date and expire on the earlier of (i) 5 years from the vesting date of any option; or (ii) 10 years from the date of grant.</footnote></footnotes><ownerSignature><signatureName>/s/ William J. Krysiak, Attorney in fact for Brion G. Wise</signatureName><signatureDate>2003-05-21</signatureDate></ownerSignature></ownershipDocument>

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