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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 ItAI96E/JawU594RI7HAi0oNXltO3JAgJtrrBT4Z5VE5KyUpjjMbgMygcQ+wGal2
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<SEC-DOCUMENT>0001181431-11-003772.txt : 20110114
<SEC-HEADER>0001181431-11-003772.hdr.sgml : 20110114
<ACCEPTANCE-DATETIME>20110114160122
ACCESSION NUMBER:		0001181431-11-003772
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20110112
FILED AS OF DATE:		20110114
DATE AS OF CHANGE:		20110114

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Largess Paul
		CENTRAL INDEX KEY:			0001408978

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34736
		FILM NUMBER:		11530348

	MAIL ADDRESS:	
		STREET 1:		6120 S YALE STE 700
		CITY:			TULSA
		STATE:			OK
		ZIP:			74136

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SemGroup Corp
		CENTRAL INDEX KEY:			0001489136
		STANDARD INDUSTRIAL CLASSIFICATION:	OIL, GAS FIELD SERVICES, NBC [1389]
		IRS NUMBER:				203533152
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		TWO WARREN PLACE
		STREET 2:		6120 SOUTH YALE AVENUE, SUITE 700
		CITY:			TULSA
		STATE:			OK
		ZIP:			74136-4216
		BUSINESS PHONE:		918-524-8100

	MAIL ADDRESS:	
		STREET 1:		TWO WARREN PLACE
		STREET 2:		6120 SOUTH YALE AVENUE, SUITE 700
		CITY:			TULSA
		STATE:			OK
		ZIP:			74136-4216
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd297615.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

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

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001489136</issuerCik>
        <issuerName>SemGroup Corp</issuerName>
        <issuerTradingSymbol>SEMG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001408978</rptOwnerCik>
            <rptOwnerName>Largess Paul</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>TWO WARREN PLACE</rptOwnerStreet1>
            <rptOwnerStreet2>6120 SOUTH YALE AVENUE, SUITE 700</rptOwnerStreet2>
            <rptOwnerCity>TULSA</rptOwnerCity>
            <rptOwnerState>OK</rptOwnerState>
            <rptOwnerZipCode>74136-4216</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP, CAO and Controller</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2011-01-12</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>995</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>26.67</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>7405</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person.  These shares were sold to cover the individual's tax obligations arising from the vesting of shares of restricted stock granted under the SemGroup Corporation Equity Incentive Plan.</footnote>
        <footnote id="F2">This represents the weighted average sales price of the shares. The shares were sold at prices ranging from $26.47 to $26.88.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Candice L. Cheeseman, Power of Attorney for Paul Largess</signatureName>
        <signatureDate>2011-01-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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