-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 GvM2wUCz/y16jdpz5QirEA==

<SEC-DOCUMENT>0001182750-04-000010.txt : 20041213
<SEC-HEADER>0001182750-04-000010.hdr.sgml : 20041213
<ACCEPTANCE-DATETIME>20041213135917
ACCESSION NUMBER:		0001182750-04-000010
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20041209
FILED AS OF DATE:		20041213
DATE AS OF CHANGE:		20041213

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SHANNON MARGARET B
		CENTRAL INDEX KEY:			0001182750

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10570
		FILM NUMBER:		041198333

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		7138955829

	MAIL ADDRESS:	
		STREET 1:		5500 NORTHWEST CENTRAL DRIVE
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77092

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BJ SERVICES CO
		CENTRAL INDEX KEY:			0000864328
		STANDARD INDUSTRIAL CLASSIFICATION:	OIL, GAS FIELD SERVICES, NBC [1389]
		IRS NUMBER:				630084140
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		5500 NW CENTRAL DR
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77210
		BUSINESS PHONE:		7134624239

	MAIL ADDRESS:	
		STREET 1:		5500 NORTHWEST CENTRAL DR
		STREET 2:		5500 NORTHWEST CENTRAL DR
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77092
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c0001182750d20041213f4f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-12-09</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000864328</issuerCik>
        <issuerName>BJ SERVICES CO</issuerName>
        <issuerTradingSymbol>BJS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001182750</rptOwnerCik>
            <rptOwnerName>SHANNON MARGARET B</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5500 NORTHWEST CENTRAL DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77092</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP-General Counsel, Secretary</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Options (Right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>47.02</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2004-12-09</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>6297</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2005-12-09</value>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2011-12-09</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>6297</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6297</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Option vests in annual installments of one-third of the shares commencing on December 9, 2005.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Margaret B. Shannon</signatureName>
        <signatureDate>2004-12-13</signatureDate>
    </ownerSignature>
</ownershipDocument>

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