<SUBMISSION>
<ACCESSION-NUMBER>0001437749-11-002635
<TYPE>5
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20101004
<FILING-DATE>20110429
<DATE-OF-FILING-DATE-CHANGE>20110429
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>Marrocco Francis
<CIK>0001436877
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>5
<ACT>34
<FILE-NUMBER>000-51403
<FILM-NUMBER>11791374
</FILING-VALUES>
<MAIL-ADDRESS>
<STREET1>4006 HIGHWAY 44
<CITY>GARYVILLE
<STATE>LA
<ZIP>70076
</MAIL-ADDRESS>
<FORMER-NAME>
<FORMER-CONFORMED-NAME>Marrocco Frank
<DATE-CHANGED>20080605
</FORMER-NAME>
</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>5
<SEQUENCE>1
<FILENAME>rdgdoc.xml
<DESCRIPTION>MARROCCO-FORM 5 2011
<TEXT>
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            <officerTitle>Chief Commercial Officer</officerTitle>
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    <footnotes>
        <footnote id="F1">Shares purchased through the Company's 401(k) Plan, includes both employee pre-tax contributions and employer contributions.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Francis A. Marrocco</signatureName>
        <signatureDate>2011-04-28</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
