-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 EfNqWVBd4xtZv51hLizGYwMEHLj7JYYaUiZli2uwEbYcp4OgLVX8LG2Op48FwhBb
 vktrE8N6QPow7zoHU5iIcQ==

<SEC-DOCUMENT>0001031523-03-000023.txt : 20031229
<SEC-HEADER>0001031523-03-000023.hdr.sgml : 20031225
<ACCEPTANCE-DATETIME>20031229125636
ACCESSION NUMBER:		0001031523-03-000023
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031223
FILED AS OF DATE:		20031229

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SIMPLOT J R
		CENTRAL INDEX KEY:			0000947911

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-11516
		FILM NUMBER:		031074857

	BUSINESS ADDRESS:	
		STREET 1:		999 MAIN ST
		CITY:			BOISE
		STATE:			IA
		ZIP:			83702
		BUSINESS PHONE:		2083362110

	MAIL ADDRESS:	
		STREET 1:		999 MAIN ST
		CITY:			BOISE
		STATE:			IA
		ZIP:			83702

	FORMER NAME:	
		FORMER CONFORMED NAME:	SIMPLOT J R ET AL
		DATE OF NAME CHANGE:	19950712

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			REMINGTON OIL & GAS CORP
		CENTRAL INDEX KEY:			0000874992
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				752369148
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		8201 PRESTON RD
		STREET 2:		SUITE 600
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75225
		BUSINESS PHONE:		2148908000

	MAIL ADDRESS:	
		STREET 1:		8201 PRESTON RD
		STREET 2:		SUITE 600
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75225-6211

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BOX ENERGY CORP
		DATE OF NAME CHANGE:	19930328
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>

<ownershipDocument>

    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2003-12-23</periodOfReport>


    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000874992</issuerCik>
        <issuerName>REMINGTON OIL &amp; GAS CORP</issuerName>
        <issuerTradingSymbol>REM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000947911</rptOwnerCik>
            <rptOwnerName>SIMPLOT J R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>999 MAIN ST</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BOISE</rptOwnerCity>
            <rptOwnerState>ID</rptOwnerState>
            <rptOwnerZipCode>83702</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>

        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2003-12-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>G</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>52000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5425928</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See FN</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>

    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">See Item 7, Nature of Indirect Beneficial Interest</footnote>
        <footnote id="F2">2,785,028 shares are directly owned by JRS Properties III L.P. (&quot;JRS Properties III&quot;).  The J.R. Simplot Self Declaration of Revocable Trust (the &quot;Trust&quot;), of which Mr. J.R. Simplot is the beneficiary and trustee, controls JRS Properties III.  The Trust, and a trust for the benefit of Mr. Simplot's spouse (&quot;Mrs. Simplot's Trust&quot;) which exercises no investment control, hold approximately 79.6% of the beneficial interest in the shares owned by JRS Properties III.

2,640,900 shares are directly owned by JRS Properties L.P. (&quot;JRS Properties&quot;). (Of these shares, 950,000 shares are subject to previously-reported variable share forward sale contracts.)  The Trust controls JRS Properties.  The Trust and Mrs. Simplot's Trust hold approximately 98.7% of the beneficial interest in the shares owned by JRS Properties.</footnote>
    </footnotes>


    <ownerSignature>
        <signatureName>J.R. Simplot, by Ronald N. Graves, as Attorney-in-Fact</signatureName>
        <signatureDate>2003-12-29</signatureDate>
    </ownerSignature>
    <ownerSignature>
        <signatureName>J.R. Simplot Self Declaration of Revocable Trust, By J.R. Simplot, Trustee, by Ronald N. Graves, as Attorney-in-Fact</signatureName>
        <signatureDate>2003-12-29</signatureDate>
    </ownerSignature>

</ownershipDocument>

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