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

    <schemaVersion>X0502</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001471499</cik>
        <entityName>OFFSHORE HYDROCARBON MAPPING PLC</entityName>
        <issuerAddress>
            <street1>THE TECHNOLOGY CENTRE,</street1>
            <street2>CLAYMORE DRIVE, BRIDGE OF DON</street2>
            <city>ABERDEEN</city>
            <stateOrCountry>X0</stateOrCountry>
            <zipCode>AB23 8GD</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>44(0)8704296581</issuerPhoneNumber>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <jurisdictionOfInc>UNITED KINGDOM</jurisdictionOfInc>
        <entityType>Limited Liability Company</entityType>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Richard</firstName>
                <middleName></middleName>
                <lastName>Cooper</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>THE TECHNOLOGY CENTRE,</street1>
                <street2>CLAYMORE DRIVE, BRIDGE OF DON</street2>
                <city>ABERDEEN</city>
                <stateOrCountry>X0</stateOrCountry>
                <zipCode>AB23 8GD</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>David</firstName>
                <middleName></middleName>
                <lastName>Pratt</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>THE TECHNOLOGY CENTRE,</street1>
                <street2>CLAYMORE DRIVE, BRIDGE OF DON</street2>
                <city>ABERDEEN</city>
                <stateOrCountry>X0</stateOrCountry>
                <zipCode>AB23 8GD</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Lucy</firstName>
                <middleName></middleName>
                <lastName>MacGregor</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>THE TECHNOLOGY CENTRE,</street1>
                <street2>CLAYMORE DRIVE, BRIDGE OF DON</street2>
                <city>ABERDEEN</city>
                <stateOrCountry>X0</stateOrCountry>
                <zipCode>AB23 8GD</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Robert</firstName>
                <middleName>Ian</middleName>
                <lastName>Auckland</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>THE TECHNOLOGY CENTRE,</street1>
                <street2>CLAYMORE DRIVE, BRIDGE OF DON</street2>
                <city>ABERDEEN</city>
                <stateOrCountry>X0</stateOrCountry>
                <zipCode>AB23 8GD</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Keith</firstName>
                <middleName></middleName>
                <lastName>Lough</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>THE TECHNOLOGY CENTRE,</street1>
                <street2>CLAYMORE DRIVE, BRIDGE OF DON</street2>
                <city>ABERDEEN</city>
                <stateOrCountry>X0</stateOrCountry>
                <zipCode>AB23 8GD</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Thierry</firstName>
                <middleName></middleName>
                <lastName>Le Roux</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>THE TECHNOLOGY CENTRE,</street1>
                <street2>CLAYMORE DRIVE, BRIDGE OF DON</street2>
                <city>ABERDEEN</city>
                <stateOrCountry>X0</stateOrCountry>
                <zipCode>AB23 8GD</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Alan</firstName>
                <middleName></middleName>
                <lastName>Faichney</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>THE TECHNOLOGY CENTRE,</street1>
                <street2>CLAYMORE DRIVE, BRIDGE OF DON</street2>
                <city>ABERDEEN</city>
                <stateOrCountry>X0</stateOrCountry>
                <zipCode>AB23 8GD</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Oil and Gas</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>$5,000,001 - $25,000,000</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>04</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2009-09-14</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>172160</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>172160</totalOfferingAmount>
            <totalAmountSold>172160</totalAmountSold>
            <totalRemaining>0</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>1</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>OFFSHORE HYDROCARBON MAPPING PLC</issuerName>
                <signatureName>/s/ Robert Ian Auckland</signatureName>
                <nameOfSigner>ROBERT IAN AUCKLAND</nameOfSigner>
                <signatureTitle>CHIEF FINANCIAL OFFICER AND COMPANY SECRETARY</signatureTitle>
                <signatureDate>2009-09-15</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
