<SUBMISSION>
<ACCESSION-NUMBER>0001181431-09-000006
<TYPE>5
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20081231
<FILING-DATE>20090102
<DATE-OF-FILING-DATE-CHANGE>20090102
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>Morgan Mary F
<CIK>0001297136
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>5
<ACT>34
<FILE-NUMBER>001-16417
<FILM-NUMBER>09500175
</FILING-VALUES>
<BUSINESS-ADDRESS>
<PHONE>(210) 345-2000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>P.O. BOX 696000
<CITY>SAN ANTONIO
<STATE>TX
<ZIP>78269-6000
</MAIL-ADDRESS>
</REPORTING-OWNER>
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>NuStar Energy L.P.
<CIK>0001110805
<ASSIGNED-SIC>4610
<IRS-NUMBER>742956831
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>2330 NORTH LOOP 1604 WEST
<CITY>SAN ANTONIO
<STATE>TX
<ZIP>78248
<PHONE>2109182000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>2330 NORTH LOOP 1604 WEST
<CITY>SAN ANTONIO
<STATE>TX
<ZIP>78248
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>VALERO L P
<DATE-CHANGED>20020110
</FORMER-COMPANY>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>SHAMROCK LOGISTICS LP
<DATE-CHANGED>20000331
</FORMER-COMPANY>
</ISSUER>
<DOCUMENT>
<TYPE>5
<SEQUENCE>1
<FILENAME>rrd225385.xml
<DESCRIPTION>EXIT REPORT FOR MARY MORGAN
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>5</documentType>

    <periodOfReport>2008-12-31</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <form3HoldingsReported>0</form3HoldingsReported>

    <form4TransactionsReported>0</form4TransactionsReported>

    <issuer>
        <issuerCik>0001110805</issuerCik>
        <issuerName>NuStar Energy L.P.</issuerName>
        <issuerTradingSymbol>NS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001297136</rptOwnerCik>
            <rptOwnerName>Morgan Mary F</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2330 NORTH LOOP 1604 WEST</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN ANTONIO</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>78248</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Senior Vice President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <remarks>Effective January 1, 2009, Mary F. Morgan began serving as Senior Vice President - European Operations.  In her new role, Ms. Morgan is no longer performing policy-making functions for the Issuer as such term is defined in Rule 16a-1(f) under the Securities Exchange Act of 1934 (the &quot;Act&quot;) and, therefore, pursuant to Rules 3b-7 and 16a-1(f) under the Act and Items 401(b) and 402(a)(3) of Regulation S-K, is no longer an &quot;officer&quot; for purposes of Section 16 of the Securities Exchange Act of 1934.</remarks>

    <ownerSignature>
        <signatureName>Elizabeth E. Clifton, as Attorney-In-Fact for Mary F. Morgan</signatureName>
        <signatureDate>2008-12-31</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
