<SUBMISSION>
<ACCESSION-NUMBER>0001437749-11-009222
<TYPE>4/A
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20111201
<FILING-DATE>20111202
<DATE-OF-FILING-DATE-CHANGE>20111202
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>Chatagnier Dale T
<CIK>0001443727
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4/A
<ACT>34
<FILE-NUMBER>000-51403
<FILM-NUMBER>111241411
</FILING-VALUES>
<MAIL-ADDRESS>
<STREET1>BLACKWATER MIDSTREAM CORP., 4006 HWY 44
<STREET2>P.O. BOX D
<CITY>GARYVILLE
<STATE>LA
<ZIP>70051
</MAIL-ADDRESS>
</REPORTING-OWNER>
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>Blackwater Midstream Corp.
<CIK>0001292518
<ASSIGNED-SIC>4220
<IRS-NUMBER>262590455
<FISCAL-YEAR-END>0331
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>660 LABAUVE DRIVE
<CITY>WESTWEGO
<STATE>LA
<ZIP>70094
<PHONE>504-340-3000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>660 LABAUVE DRIVE
<CITY>WESTWEGO
<STATE>LA
<ZIP>70094
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>Laycor Ventures Corp.
<DATE-CHANGED>20040602
</FORMER-COMPANY>
</ISSUER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>rdgdoc.xml
<DESCRIPTION>CHATAGNIER 33.3%>2012>2015
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0304</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2011-12-01</periodOfReport>

    <dateOfOriginalSubmission>2009-03-11</dateOfOriginalSubmission>

    <issuer>
        <issuerCik>0001292518</issuerCik>
        <issuerName>Blackwater Midstream Corp.</issuerName>
        <issuerTradingSymbol>BWMS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001443727</rptOwnerCik>
            <rptOwnerName>Chatagnier Dale T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>660 LABAUVE DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>WESTWEGO</rptOwnerCity>
            <rptOwnerState>LA</rptOwnerState>
            <rptOwnerZipCode>70094</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>Chief Operations Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2009-03-11</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>480690</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>480690</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">These shares of restricted common stock were originally scheduled to vest according to the following schedule (i) 33.3% on January 01, 2010; and (ii) 8.3375% on the last calendar day of each subsequent calendar quarter, until all shares have vested, provided however, that such shares shall vest according to such schedule provided the Reporting Person is employed by the Issuer on such dates, respectively.
Per Unanimous Consent Resolution of the Board of Directors on December 08, 2009 the vesting date for this grant was changed to January 01, 2012, provided the reporting Person is an employee of the Issuer at that time.
Per Unanimous Consent Resolution of the Board of Directors on December 01, 2011 the vesting date for this grant was changed to January 01, 2015, provided the reporting Person is an employee of the Issuer at that time.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Dale Chatagnier</signatureName>
        <signatureDate>2011-12-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
