<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-08-25</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000874992</issuerCik><issuerName>REMINGTON OIL &amp; GAS CORP</issuerName>        <issuerTradingSymbol>REM</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001196568</rptOwnerCik><rptOwnerName>CRAIG STEVEN J</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>8201 PRESTON ROAD, SUITE 600</rptOwnerStreet1><rptOwnerStreet2></rptOwnerStreet2><rptOwnerCity>DALLAS</rptOwnerCity><rptOwnerState>TX</rptOwnerState><rptOwnerZipCode>75225</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>Senior Vice-President</officerTitle></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-08-25</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>10000</value></transactionShares><transactionPricePerShare><value>18.5016</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>39550</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><footnotes></footnotes><remarks></remarks><ownerSignature><signatureName>/s/ Steven J. Craig</signatureName><signatureDate>2003-08-27</signatureDate></ownerSignature></ownershipDocument>

