-----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,
 S224wdYwZBi1Q8pogisfPD+rMlEfWiprNy2f6aqufgCVG920gcFwXkRXDwUTTWu3
 2QVRhKWn0KuiVkdmIhdWqA==

<SEC-DOCUMENT>0001181431-04-001930.txt : 20040108
<SEC-HEADER>0001181431-04-001930.hdr.sgml : 20040108
<ACCEPTANCE-DATETIME>20040108190736
ACCESSION NUMBER:		0001181431-04-001930
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040106
FILED AS OF DATE:		20040108

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PREMCOR INC
		CENTRAL INDEX KEY:			0001159119
		STANDARD INDUSTRIAL CLASSIFICATION:	PETROLEUM REFINING [2911]
		IRS NUMBER:				431851087
		STATE OF INCORPORATION:			DE

	BUSINESS ADDRESS:	
		STREET 1:		1700 EAST PUTNAM AVENUE
		STREET 2:		SUITE 400
		CITY:			OLD GREENWICH
		STATE:			CT
		ZIP:			06870
		BUSINESS PHONE:		2036987500

	MAIL ADDRESS:	
		STREET 1:		1700 EAST PUTNAM AVENUE
		STREET 2:		SUITE 400
		CITY:			OLD GREENWICH
		STATE:			CT
		ZIP:			06870

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MCCLAVE WILKES III
		CENTRAL INDEX KEY:			0001174919

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-16827
		FILM NUMBER:		04516420

	BUSINESS ADDRESS:	
		STREET 1:		C/O PREMCOR INC
		STREET 2:		1700 EAST PUTNAM AVENUE, SUITE 400
		CITY:			OLD GREENWICH
		STATE:			CT
		ZIP:			06870
		BUSINESS PHONE:		2036987500

	MAIL ADDRESS:	
		STREET 1:		C/O PREMCOR INC
		STREET 2:		1700 EAST PUTNAM AVENUE, SUITE 400
		CITY:			OLD GREENWICH
		STATE:			CT
		ZIP:			06870
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd28409.xml
<DESCRIPTION>OPTION GRANT
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2004-01-06</periodOfReport><notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0001159119</issuerCik>
        <issuerName>PREMCOR INC</issuerName>
        <issuerTradingSymbol>PCO</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001174919</rptOwnerCik>
            <rptOwnerName>MCCLAVE WILKES III</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O PREMCOR INC.</rptOwnerStreet1>
            <rptOwnerStreet2>1700 EAST PUTNAM AVENUE, SUITE 400</rptOwnerStreet2>
            <rptOwnerCity>OLD GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06870</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><derivativeTable><derivativeTransaction><securityTitle><value>Stock Option</value></securityTitle><conversionOrExercisePrice><value>26.14</value></conversionOrExercisePrice><transactionDate><value>2004-01-06</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>2500</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><footnoteId id="F1"/></exerciseDate><expirationDate><value>2014-01-06</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecur
ityShares><value>2500</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>2500</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">The ten-year option vests in five equal annual installments beginning on January 6, 2005.</footnote></footnotes><ownerSignature><signatureName>Michael D. Gayda, Attorney-in-Fact</signatureName><signatureDate>2004-01-08</signatureDate></ownerSignature></ownershipDocument>



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