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

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2018-05-15</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001469510</issuerCik>
        <issuerName>Resolute Energy Corp</issuerName>
        <issuerTradingSymbol>REN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001714521</rptOwnerCik>
            <rptOwnerName>CITARRELLA JOSEPH MICHAEL</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MONARCH ALTERNATIVE CAPITAL LP</rptOwnerStreet1>
            <rptOwnerStreet2>535 MADISON AVENUE, 26TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <remarks>No securities are beneficially owned. Joseph Citarrella, a Managing Principal of Monarch Alternative Capital LP (the &quot;Management Company&quot;), was appointed to the board of directors of the Issuer as a representative of the Management Company and certain of its affiliates. Solely for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, the Management Company and certain of its affiliates may be deemed to be directors-by-deputization by virtue of having representation on the board of directors of the Issuer.</remarks>

    <ownerSignature>
        <signatureName>/s/ Joseph Citarrella</signatureName>
        <signatureDate>2018-05-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
