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

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2007-09-27</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001402175</issuerCik>
        <issuerName>Hicks Acquisition CO I Inc.</issuerName>
        <issuerTradingSymbol>TOH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001413614</rptOwnerCik>
            <rptOwnerName>Armes Joseph B</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>100 CRESCENT COURT</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1200</rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75201</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President, CEO and CFO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <remarks>The Power of Attorney, executed by the Joseph B. Armes authorizing Thomas O. Hicks, Jr. to sign and file filings relating to the Issuer on Joseph B. Armes' behalf is attached hereto as Exhibit A.</remarks>

    <ownerSignature>
        <signatureName>/s/ Joseph B. Armes</signatureName>
        <signatureDate>2007-09-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
