-----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,
 Ng0kPgzTkIrO9jZ+LCJVmt62xavgdaHuMA5VzSWwIOrTKm9JvRjCv0yUMjF3NBP6
 tj6e9K5B8ko5TgOYz50THA==

<SEC-DOCUMENT>0001019718-03-000013.txt : 20030516
<SEC-HEADER>0001019718-03-000013.hdr.sgml : 20030516
<ACCEPTANCE-DATETIME>20030516143651
ACCESSION NUMBER:		0001019718-03-000013
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030515
FILED AS OF DATE:		20030516

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			VALERO ENERGY CORP/TX
		CENTRAL INDEX KEY:			0001035002
		STANDARD INDUSTRIAL CLASSIFICATION:	PETROLEUM REFINING [2911]
		IRS NUMBER:				741828067
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ONE VALERO PLACE
		CITY:			SAN ANTONIO
		STATE:			TX
		ZIP:			78212
		BUSINESS PHONE:		2103702000

	MAIL ADDRESS:	
		STREET 1:		ONE VALERO PLACE
		CITY:			SAN ANTONIO
		STATE:			TX
		ZIP:			78212

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KLESSE WILLIAM R
		CENTRAL INDEX KEY:			0001019718

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13175
		FILM NUMBER:		03708206

	BUSINESS ADDRESS:	
		STREET 1:		PO BOX 696000
		CITY:			SAN ANTONIO
		STATE:			TX
		ZIP:			78269-6000
		BUSINESS PHONE:		2106418750

	MAIL ADDRESS:	
		STREET 1:		PO BOX 696000
		CITY:			SAN ANTONIO
		STATE:			TX
		ZIP:			78269-6000
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0101</schemaVersion>

<documentType>4</documentType><periodOfReport>2003-05-15</periodOfReport>
<issuer><issuerCik>0001035002</issuerCik>
        <issuerName>VALERO ENERGY CORP/TX</issuerName>
<issuerTradingSymbol>VLO</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001019718</rptOwnerCik>
            <rptOwnerName>KLESSE WILLIAM R</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>EVP &amp;amp; COO</officerTitle></reportingOwnerRelationship></reportingOwner><nonDerivativeSecurity><securityTitle><value>Common Stock, $.01 par value (shrs recd upon ex of options)</value></securityTitle><transactionDate><value>2003-05-15</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>31380</value></transactionShares><transactionValue><value>16.86</value></transactionValue><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>104635</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><nature
OfOwnership><value></value></natureOfOwnership></ownershipNature></nonDerivativeSecurity><nonDerivativeSecurity><securityTitle><value>Common Stock, $.01 par value (shrs whld upon ex of options)</value></securityTitle><transactionDate><value>2003-05-15</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>F</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>13753</value></transactionShares><transactionValue><value>38.47</value></transactionValue><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>90882</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></nonDerivativeSecurity><nonDerivativeSecurity><s
ecurityTitle><value>Common Stock, $.01 par value (shrs whld to pay tax oblig)</value></securityTitle><transactionDate><value>2003-05-15</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>F</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>7059</value></transactionShares><transactionValue><value>38.47</value></transactionValue><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>82823</value><footnoteId id="F1"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></nonDerivativeSecurity><derivativeSecurity><securityTitle><value>Employee stock option (right to buy)</value></securityTitle><conversionOrExerci
sePrice><value>16.86</value></conversionOrExercisePrice><transactionDate><value>2003-05-15</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>31380</value></transactionShares><transactionValue><value>0</value></transactionValue><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2001-12-31</value></exerciseDate><expirationDate><value>2010-02-07</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>31380</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>950</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIn
directOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeSecurity><derivativeSecurity><securityTitle><value>Employee Stock Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>38.47</value></conversionOrExercisePrice><transactionDate><value>2003-05-15</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>13753</value></transactionShares><transactionValue><value>0</value></transactionValue><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2005-05-15</value></exerciseDate><expirationDate><value>2010-02-07</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>13753</value></underlyingSecurityShar
es></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>13753</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeSecurity><footnotes><footnote id="F1">The 82,823 amount does not include 5,097.43 shares indirectly owned by the reporting person in benefit plans.</footnote></footnotes><ownerSignature><signatureName>J. Stephen Gilbert, Atty in Fact for William R. Klesse</signatureName><signatureDate>2003-05-15</signatureDate></ownerSignature></ownershipDocument>

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