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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,
 JQLckSUaaOsi5KeX6c2w2DpEGM5xjRXyJ3Gb20TEkWHIGMYzwQMaEMRVC78KYT6A
 Nus8tDxG397cxialPNsnvw==

<SEC-DOCUMENT>0000095304-03-000049.txt : 20031120
<SEC-HEADER>0000095304-03-000049.hdr.sgml : 20031120
<ACCEPTANCE-DATETIME>20031120152745
ACCESSION NUMBER:		0000095304-03-000049
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031118
FILED AS OF DATE:		20031120

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			NAKU ROLF D
		CENTRAL INDEX KEY:			0001174602

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-06841
		FILM NUMBER:		031015499

	BUSINESS ADDRESS:	
		STREET 1:		1801 MARKET STREET
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19103-1699

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SUNOCO INC
		CENTRAL INDEX KEY:			0000095304
		STANDARD INDUSTRIAL CLASSIFICATION:	PETROLEUM REFINING [2911]
		IRS NUMBER:				231743282
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		TEN PENN CENTER
		STREET 2:		1801 MARKET ST
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19103-1699
		BUSINESS PHONE:		2159773000

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SUN CO INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SUN OIL CO
		DATE OF NAME CHANGE:	19760608
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c0001174602d20031120f4f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-11-18</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000095304</issuerCik><issuerName>SUNOCO INC</issuerName>        <issuerTradingSymbol>SUN</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001174602</rptOwnerCik><rptOwnerName>NAKU ROLF D</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>1801 MARKET STREET</rptOwnerStreet1><rptOwnerStreet2></rptOwnerStreet2><rptOwnerCity>PHILADELPHIA</rptOwnerCity><rptOwnerState>PA</rptOwnerState><rptOwnerZipCode>19103-1699</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>Senior Vice President</officerTitle><otherText></otherText></reportingOwnerRelationship></reportingOwner><nonDeriva
tiveTable><nonDerivativeTransaction><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-11-18</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved><footnoteId id="F1"/></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>13500</value></transactionShares><transactionPricePerShare><value>27.875</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>20589.1</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></nonDerivativeTransaction>
<nonDerivativeTransaction><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-11-18</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>9922</value></transactionShares><transactionPricePerShare><value>44.82</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>10667.1</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeHolding><securityTi
tle><value>Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>1635</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>ESOP Trust</value></natureOfOwnership></ownershipNature></nonDerivativeHolding></nonDerivativeTable><derivativeTable><derivativeTransaction><securityTitle><value>Stock Options (Right to buy)</value></securityTitle><conversionOrExercisePrice><value>27.875</value></conversionOrExercisePrice><transactionDate><value>2003-11-18</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved><footnoteId id="F1"/></transactionCoding><transactionAmounts><transactionShares><value>13500</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><tra
nsactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2002-12-06</value></exerciseDate><expirationDate><value>2010-12-06</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>16500</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>3000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">Cash exercise of 13,500 stock options granted in 2000 at option price of $27.875 in compliance with Rule 16(b)3 under the Sunoco, Inc. Long-Term Performance Enhancement Plan ("LTPEP").</footnote></footnotes><ownerSignature><signatureName>/s/ Ann C. Mule
, Attorney-in-fact for</signatureName><signatureDate>2003-11-20</signatureDate></ownerSignature></ownershipDocument>

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