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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,
 HWBfynAjI4kQc/PrXRsyedCgiV3zj5bLlJwyjAD2Reu/VLuNH0FIynLHtNEulcyK
 Q6wxeGXdpcxa7o+2u+4x+A==

<SEC-DOCUMENT>0001209191-03-019076.txt : 20030826
<SEC-HEADER>0001209191-03-019076.hdr.sgml : 20030826
<ACCEPTANCE-DATETIME>20030826172118
ACCESSION NUMBER:		0001209191-03-019076
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030815
FILED AS OF DATE:		20030826

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GUION DOUGLAS J
		CENTRAL INDEX KEY:			0001228516

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-09408
		FILM NUMBER:		03867175

	BUSINESS ADDRESS:	
		STREET 1:		PO BOX 2756
		CITY:			EDWARDS
		STATE:			CO
		ZIP:			86132-2756
		BUSINESS PHONE:		9709268266

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PRIMA ENERGY CORP
		CENTRAL INDEX KEY:			0000318107
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				841097578
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1099 18TH STREET
		STREET 2:		SUITE 400
		CITY:			DENVER
		STATE:			CO
		ZIP:			80202
		BUSINESS PHONE:		3032972100

	MAIL ADDRESS:	
		STREET 1:		1099 18TH STREET
		STREET 2:		SUITE 400
		CITY:			DENVER
		STATE:			CO
		ZIP:			80202
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-08-15</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000318107</issuerCik><issuerName>PRIMA ENERGY CORP</issuerName>        <issuerTradingSymbol>PENG</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001228516</rptOwnerCik><rptOwnerName>GUION DOUGLAS J</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>1099 18TH STREET</rptOwnerStreet1><rptOwnerStreet2>SUITE 400</rptOwnerStreet2><rptOwnerCity>DENVER</rptOwnerCity><rptOwnerState>CO</rptOwnerState><rptOwnerZipCode>80202-1908</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><se
curityTitle><value>Common stock</value></securityTitle><transactionDate><value>2003-08-15</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>5</transactionFormType><transactionCode>G</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value>E</value></transactionTimeliness><transactionAmounts><transactionShares><value>10000</value></transactionShares><transactionPricePerShare><value>23.45</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>14051</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><derivativeTable><derivativeHolding><securityTitle><value>Stock options</value></securityTitle>
<conversionOrExercisePrice><value>6.67</value></conversionOrExercisePrice><exerciseDate><footnoteId id="F1" /></exerciseDate><expirationDate><value>2008-09-17</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>22500</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>22500</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Stock options</value></securityTitle><conversionOrExercisePrice><value>9.83</value></conversionOrExercisePrice><exerciseDate><footnoteId id="F1" /></exerciseDate><expirationDate><value>2009-09-17</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common stock</value></underlyingSecurityTitle><underlyingSecurityShares><
value>5625</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>5625</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Stock options</value></securityTitle><conversionOrExercisePrice><value>32.33</value></conversionOrExercisePrice><exerciseDate><footnoteId id="F1" /></exerciseDate><expirationDate><value>2010-09-17</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>5625</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>5625</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></
derivativeHolding><derivativeHolding><securityTitle><value>Stock options</value></securityTitle><conversionOrExercisePrice><value>23.56</value></conversionOrExercisePrice><exerciseDate><footnoteId id="F1" /></exerciseDate><expirationDate><value>2011-09-17</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>5625</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>5625</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Stock options</value></securityTitle><conversionOrExercisePrice><value>20.78</value></conversionOrExercisePrice><exerciseDate><footnoteId id="F1" /></exerciseDate><expirationDate><value>2012-09-17</value></expirationDate><underlyingSecurity><underlyi
ngSecurityTitle><value>Common stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>5625</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>5625</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeHolding></derivativeTable><footnotes><footnote id="F1">Stock options vest 20% per year over five years.</footnote></footnotes><remarks></remarks><ownerSignature><signatureName>Sandra J. Irlando as Attorney-in-Fact for Douglas J. Guion</signatureName><signatureDate>2003-08-26</signatureDate></ownerSignature></ownershipDocument>

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