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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2016-09-20</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001334388</issuerCik>
        <issuerName>PENN WEST PETROLEUM LTD.</issuerName>
        <issuerTradingSymbol>PWE</issuerTradingSymbol>
    </issuer>

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        <reportingOwnerId>
            <rptOwnerCik>0001686917</rptOwnerCik>
            <rptOwnerName>Ho Cheuk Fund</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2906 CHINA RESOURCES BUILDING</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>WANCHAI</rptOwnerCity>
            <rptOwnerState>K3</rptOwnerState>
            <rptOwnerZipCode>00000</rptOwnerZipCode>
            <rptOwnerStateDescription>HONG KONG</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Financial Investor (9.83%)</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

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    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>Jian Qing</signatureName>
        <signatureDate>2016-10-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
