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

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2013-06-28</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001358071</issuerCik>
        <issuerName>CONCHO RESOURCES INC</issuerName>
        <issuerTradingSymbol>CXO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001580332</rptOwnerCik>
            <rptOwnerName>Schroer Brenda R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>600 W. ILLINOIS AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>ONE CONCHO CENTER</rptOwnerStreet2>
            <rptOwnerCity>MIDLAND</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>79701</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>VP and CAO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <remarks>The reporting person does not beneficially own any securities at the time of her appointment.</remarks>

    <ownerSignature>
        <signatureName>/s/ Travis L. Counts, as attorney-in-fact</signatureName>
        <signatureDate>2013-07-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
