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<FILING-DATE>20100413
<DATE-OF-FILING-DATE-CHANGE>20100413
<REPORTING-OWNER>
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<CONFORMED-NAME>Marrocco Francis
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<STATE>LA
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<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>Blackwater Midstream Corp.
<CIK>0001292518
<ASSIGNED-SIC>4220
<IRS-NUMBER>262590455
<FISCAL-YEAR-END>0331
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<BUSINESS-ADDRESS>
<STREET1>660 LABAUVE DRIVE
<CITY>WESTWEGO
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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>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Francis Morrocco</signatureName>
        <signatureDate>2010-04-12</signatureDate>
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</SUBMISSION>
