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    <schemaVersion>X0708</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001092289</cik>
        <entityName>TRANSATLANTIC PETROLEUM LTD.</entityName>
        <issuerAddress>
            <street1>16803 DALLAS PARKWAY</street1>
            <city>ADDISON</city>
            <stateOrCountry>TX</stateOrCountry>
            <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
            <zipCode>75001</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>214-220-4323</issuerPhoneNumber>
        <jurisdictionOfInc>BERMUDA</jurisdictionOfInc>
        <issuerPreviousNameList>
            <previousName>TransAtlantic Petroleum Corp.</previousName>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <previousName>TRANSATLANTIC PETROLEUM CORP.</previousName>
            <previousName>TRANSATLANTIC PETROLEUM CORP</previousName>
        </edgarPreviousNameList>
        <entityType>Other</entityType>
        <entityTypeOtherDesc>Bermuda Exempted Company with Limited Liability</entityTypeOtherDesc>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
        </yearOfInc>
    </primaryIssuer>

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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Noah</firstName>
                <middleName>Malone</middleName>
                <lastName>Mitchell 3rd</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>16803 Dallas Parkway</street1>
                <city>Addison</city>
                <stateOrCountry>TX</stateOrCountry>
                <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
                <zipCode>75001</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Chairman of the Board of Directors and Chief Executive Officer of the Issuer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Todd</firstName>
                <middleName>C.</middleName>
                <lastName>Dutton</lastName>
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                <street1>16803 Dallas Parkway</street1>
                <city>Addison</city>
                <stateOrCountry>TX</stateOrCountry>
                <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
                <zipCode>75001</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>President of the Issuer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Chad</firstName>
                <middleName>D.</middleName>
                <lastName>Burkhardt</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>16803 Dallas Parkway</street1>
                <city>Addison</city>
                <stateOrCountry>TX</stateOrCountry>
                <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
                <zipCode>75001</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Vice President, General Counsel and Corporate Secretary of the Issuer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Harold</firstName>
                <middleName>L.</middleName>
                <lastName>Muncy</lastName>
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                <street1>16803 Dallas Parkway</street1>
                <city>Addison</city>
                <stateOrCountry>TX</stateOrCountry>
                <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
                <zipCode>75001</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Vice President of Geosciences of the Issuer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Galo</firstName>
                <middleName>Fabian</middleName>
                <lastName>Anda</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>16803 Dallas Parkway</street1>
                <city>Addison</city>
                <stateOrCountry>TX</stateOrCountry>
                <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
                <zipCode>75001</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Interim Principal Accounting and Financial Officer and Vice President of Finance of the Issuer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Gregory</firstName>
                <middleName>K.</middleName>
                <lastName>Renwick</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
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                <city>Addison</city>
                <stateOrCountry>TX</stateOrCountry>
                <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
                <zipCode>75001</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Brian</firstName>
                <middleName>E.</middleName>
                <lastName>Bayley</lastName>
            </relatedPersonName>
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                <city>Addison</city>
                <stateOrCountry>TX</stateOrCountry>
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                <zipCode>75001</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Mel</firstName>
                <middleName>G.</middleName>
                <lastName>Riggs</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>16803 Dallas Parkway</street1>
                <city>Addison</city>
                <stateOrCountry>TX</stateOrCountry>
                <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
                <zipCode>75001</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
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            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Bob</firstName>
                <middleName>G.</middleName>
                <lastName>Alexander</lastName>
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                <stateOrCountry>TX</stateOrCountry>
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                <zipCode>75001</zipCode>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Charles</firstName>
                <middleName>J.</middleName>
                <lastName>Campise</lastName>
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                <stateOrCountry>TX</stateOrCountry>
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                <zipCode>75001</zipCode>
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            <relatedPersonRelationshipList>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Jonathon</firstName>
                <lastName>Fite</lastName>
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                <zipCode>75001</zipCode>
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            <relatedPersonRelationshipList>
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            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Randy</firstName>
                <lastName>Rochman</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>16803 Dallas Parkway</street1>
                <city>Addison</city>
                <stateOrCountry>TX</stateOrCountry>
                <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
                <zipCode>75001</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Oil and Gas</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>$25,000,001 - $100,000,000</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06b</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2017-10-02</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>1842008</totalOfferingAmount>
            <totalAmountSold>1842008</totalAmountSold>
            <totalRemaining>0</totalRemaining>
            <clarificationOfResponse>Issuer issued an aggregate of 2,591,384 common shares to holders of the Issuer?s 12.0% Series A Convertible Redeemable Preferred Shares (the ?Series A Preferred Shares?) as payment of the quarterly dividend on the Series A Preferred Shares.</clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>10</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>TRANSATLANTIC PETROLEUM LTD.</issuerName>
                <signatureName>/s/ Chad Burkhardt</signatureName>
                <nameOfSigner>Chad Burkhardt</nameOfSigner>
                <signatureTitle>Vice President, General Counsel and Secretary</signatureTitle>
                <signatureDate>2017-10-20</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
