<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-06-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000101594</issuerCik>
        <issuerName>US ENERGY CORP</issuerName>
        <issuerTradingSymbol>USEG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001304550</rptOwnerCik>
            <rptOwnerName>FEINSTEIN MICHAEL H</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5309 E PARADISE LANE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SCOTTSDALE</rptOwnerCity>
            <rptOwnerState>AZ</rptOwnerState>
            <rptOwnerZipCode>85254</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>U.S. Energy Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2006-06-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>785</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>5.730</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1261</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Director Option 6 (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>3.860</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2005-10-14</value>
            </exerciseDate>
            <expirationDate>
                <value>2015-10-13</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>U.S. Energy Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>25000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>25000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Shares issued as payment for services as a non-employee Director for calandar year 2005.</footnote>
        <footnote id="F2">Includes shares given to the Reporting Person as payment as a Non-Employee Director.</footnote>
        <footnote id="F3">Options issued to Reporting Person as a member of the  Issuer's Board of Directors.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>By: Robert Scott Lorimer Attorney in Fact</signatureName>
        <signatureDate>2006-06-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
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X0202
4
2006-06-01
0
0000101594
US ENERGY CORP
USEG
0001304550
FEINSTEIN MICHAEL H
5309 E PARADISE LANE
SCOTTSDALE
AZ
85254
1
0
0
0
U.S. Energy Common Stock
2006-06-01
4
J
0
785
5.730
A
1261
D
Director Option 6 (Right to Buy)
3.860
2005-10-14
2015-10-13
U.S. Energy Common Stock
25000
25000
D
Shares issued as payment for services as a non-employee Director for calandar year 2005.
Includes shares given to the Reporting Person as payment as a Non-Employee Director.
Options issued to Reporting Person as a member of the  Issuer's Board of Directors.
By: Robert Scott Lorimer Attorney in Fact
2006-06-05