<SEC-DOCUMENT>0001035002-13-000016.txt : 20130411
<SEC-HEADER>0001035002-13-000016.hdr.sgml : 20130411
<ACCEPTANCE-DATETIME>20130411145143
ACCESSION NUMBER:		0001035002-13-000016
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20130411
FILED AS OF DATE:		20130411
DATE AS OF CHANGE:		20130411

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CST Brands, Inc.
		CENTRAL INDEX KEY:			0001562039
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-AUTO DEALERS & GASOLINE STATIONS [5500]
		IRS NUMBER:				461365950
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ONE VALERO WAY
		CITY:			SAN ANTONIO
		STATE:			TX
		ZIP:			78249
		BUSINESS PHONE:		210-345-2000

	MAIL ADDRESS:	
		STREET 1:		ONE VALERO WAY
		CITY:			SAN ANTONIO
		STATE:			TX
		ZIP:			78249

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Corner Store Holdings, Inc.
		DATE OF NAME CHANGE:	20121113

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			VALERO ENERGY CORP/TX
		CENTRAL INDEX KEY:			0001035002
		STANDARD INDUSTRIAL CLASSIFICATION:	PETROLEUM REFINING [2911]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35743
		FILM NUMBER:		13756011

	BUSINESS ADDRESS:	
		STREET 1:		P.O. BOX 696000
		CITY:			SAN ANTONIO
		STATE:			TX
		ZIP:			78269-6000
		BUSINESS PHONE:		2103452000

	MAIL ADDRESS:	
		STREET 1:		P.O. BOX 696000
		CITY:			SAN ANTONIO
		STATE:			TX
		ZIP:			78269-6000
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2013-04-11</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001562039</issuerCik>
        <issuerName>CST Brands, Inc.</issuerName>
        <issuerTradingSymbol>CST</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001035002</rptOwnerCik>
            <rptOwnerName>VALERO ENERGY CORP/TX</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>P.O. BOX 696000</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN ANTONIO</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>78269-6000</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, $0.01 par value</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>J. Stephen Gilbert, Secretary and Disclosure and Compliance Officer</signatureName>
        <signatureDate>2013-04-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
