-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 VyufwFsSB+SDv9OsXaCGHMRDTXgxQYw+EZs+2KkbqW7sbXWgTgDQH2dlb85of+d8
 +UQGFp6dky0O1pBqjVrouw==

<SEC-DOCUMENT>0001209191-04-034723.txt : 20040706
<SEC-HEADER>0001209191-04-034723.hdr.sgml : 20040705
<ACCEPTANCE-DATETIME>20040706103958
ACCESSION NUMBER:		0001209191-04-034723
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040702
FILED AS OF DATE:		20040706

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WEHRLE GAINES
		CENTRAL INDEX KEY:			0001018129

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-07406
		FILM NUMBER:		04901495

	BUSINESS ADDRESS:	
		STREET 1:		835 HILLCREST DRIVE
		STREET 2:		835
		CITY:			CHARLESTON
		STATE:			WV
		ZIP:			25311

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PRIMEENERGY CORP
		CENTRAL INDEX KEY:			0000056868
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				840637348
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ONE LANDMARK SQ
		CITY:			STAMFORD
		STATE:			CT
		ZIP:			06901
		BUSINESS PHONE:		2033585700

	MAIL ADDRESS:	
		STREET 1:		ONE LANDMARK SQ
		CITY:			STAMFORD
		STATE:			CT
		ZIP:			06901

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	KRM PETROLEUM CORP
		DATE OF NAME CHANGE:	19900614
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>bod16553_bod1egw.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-07-02</periodOfReport>

    <issuer>
        <issuerCik>0000056868</issuerCik>
        <issuerName>PRIMEENERGY CORP</issuerName>
        <issuerTradingSymbol>PNRG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001018129</rptOwnerCik>
            <rptOwnerName>WEHRLE GAINES</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>835 HILLCREST DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CHARLESTON</rptOwnerCity>
            <rptOwnerState>WV</rptOwnerState>
            <rptOwnerZipCode>25311</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.10 par</value>
            </securityTitle>
            <transactionDate>
                <value>2004-07-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>25000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>18.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>673521</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Mr. Wehrle may be deemed the beneficial owner by reason of his position with McJunkin Corporation, the record holder of these shares. This filing is not an admission by Mr. Wehrle that he is, for the purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the beneficial owner of such shares.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ E. Gaines Wehrle</signatureName>
        <signatureDate>2004-07-06</signatureDate>
    </ownerSignature>
</ownershipDocument>

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