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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2015-07-27</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001362705</issuerCik>
        <issuerName>Sanchez Production Partners LP</issuerName>
        <issuerTradingSymbol>SPP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001638306</rptOwnerCik>
            <rptOwnerName>Sanchez Patricio D.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1000 MAIN STREET, SUITE 3000</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77002</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Operating Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Units</value>
            </securityTitle>
            <transactionDate>
                <value>2015-07-27</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>196023</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>196023</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By 1988 Trust #14</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Units</value>
            </securityTitle>
            <transactionDate>
                <value>2015-07-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>44910</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>56525</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On July 27, 2015, San Juan Oil &amp; Gas No. 2, Ltd. (&quot;San Juan&quot;) made a pro rata distribution (the &quot;San Juan Distribution&quot;) for no consideration of the 529,792 common units representing limited partner interests (&quot;Units&quot;) of Sanchez Production Partners LP beneficially owned by it to its partners, including 1988 Trust No. 14 (&quot;Trust 14&quot;) (79,469 Units). On July 27, 2015, Sanexco, Ltd. (&quot;Sanexco&quot;)  made a pro rata distribution (the &quot;Sanexco Distribution&quot;) for no consideration of the 529,792 Units beneficially owned by it to its partners, including Trust 14 (116,554 Units).</footnote>
        <footnote id="F2">These Units are owned directly by Trust 14. Patricio Sanchez is a co-trustee, along with A. R. Sanchez, Jr., and beneficiary of Trust 14. Patricio Sanchez may be deemed to share voting and dispositive power over the Units held by Trust 14. Patricio Sanchez disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership by Patricio Sanchez of the reported securities for purposes of Section 16 or any other purpose.</footnote>
        <footnote id="F3">To the extent the the San Juan Distribution and the Sanexco Distribution were pro rata to San Juan's  and Sanexco's partners, respectively, Rule 16a-9(a) under the Act is applicable and thus would exempt the acquisitions of the Units by Trust 14 from Section 16 of the Act.</footnote>
        <footnote id="F4">Represents a grant of Units from the Issuer.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Patricio D. Sanchez</signatureName>
        <signatureDate>2015-07-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
