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    <schemaVersion>X0704</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

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        <cik>0001473061</cik>
        <entityName>PostRock Energy Corp</entityName>
        <issuerAddress>
            <street1>210 PARK AVENUE, SUITE 2750</street1>
            <city>OKLAHOMA CITY</city>
            <stateOrCountry>OK</stateOrCountry>
            <stateOrCountryDescription>OKLAHOMA</stateOrCountryDescription>
            <zipCode>73102</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>(405)600-7704</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2009</value>
        </yearOfInc>
    </primaryIssuer>

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                <city>Oklahoma City</city>
                <stateOrCountry>OK</stateOrCountry>
                <stateOrCountryDescription>OKLAHOMA</stateOrCountryDescription>
                <zipCode>73102</zipCode>
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                <relationship>Director</relationship>
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                <zipCode>73102</zipCode>
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                <firstName>Lance</firstName>
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                <lastName>Pinson</lastName>
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                <stateOrCountry>OK</stateOrCountry>
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                <zipCode>73102</zipCode>
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                <zipCode>73102</zipCode>
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                <zipCode>73102</zipCode>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Daniel</firstName>
                <lastName>Spears</lastName>
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                <street1>210 Park Avenue, Suite 2750</street1>
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                <zipCode>73102</zipCode>
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    <offeringData>
        <industryGroup>
            <industryGroupType>Oil and Gas</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
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        <federalExemptionsExclusions>
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        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
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            <dateOfFirstSale>
                <value>2010-09-21</value>
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        </typeOfFiling>
        <durationOfOffering>
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        <typesOfSecuritiesOffered>
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            <isDebtType>true</isDebtType>
            <isOptionToAcquireType>true</isOptionToAcquireType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
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        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>Berenson &amp; Co. LLC</recipientName>
                <recipientCRDNumber>28016</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>667 Madison Avenue</street1>
                    <city>New York</city>
                    <stateOrCountry>NY</stateOrCountry>
                    <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                    <zipCode>10065</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <state>TX</state>
                    <description>TEXAS</description>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
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        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>60000000</totalOfferingAmount>
            <totalAmountSold>60000000</totalAmountSold>
            <totalRemaining>0</totalRemaining>
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        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>3</totalNumberAlreadyInvested>
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        <salesCommissionsFindersFees>
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                <dollarAmount>0</dollarAmount>
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            <clarificationOfResponse></clarificationOfResponse>
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        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>PostRock Energy Corp</issuerName>
                <signatureName>Stephen L. DeGiusti</signatureName>
                <nameOfSigner>Stephen L. DeGiusti</nameOfSigner>
                <signatureTitle>General Counsel</signatureTitle>
                <signatureDate>2010-10-06</signatureDate>
            </signature>
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</edgarSubmission>
