<SEC-DOCUMENT>0001822099-20-000003.txt : 20200910
<SEC-HEADER>0001822099-20-000003.hdr.sgml : 20200910
<ACCEPTANCE-DATETIME>20200910172055
ACCESSION NUMBER:		0001822099-20-000003
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20200903
FILED AS OF DATE:		20200910
DATE AS OF CHANGE:		20200910

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Thomas Cheryl L.
		CENTRAL INDEX KEY:			0001822099

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13175
		FILM NUMBER:		201169320

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

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			VALERO ENERGY CORP/TX
		CENTRAL INDEX KEY:			0001035002
		STANDARD INDUSTRIAL CLASSIFICATION:	PETROLEUM REFINING [2911]
		IRS NUMBER:				741828067
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	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>wf-form3_159977284143011.xml
<DESCRIPTION>FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2020-09-03</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001035002</issuerCik>
        <issuerName>VALERO ENERGY CORP/TX</issuerName>
        <issuerTradingSymbol>VLO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001822099</rptOwnerCik>
            <rptOwnerName>Thomas Cheryl L.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1></rptOwnerStreet1>
            <rptOwnerStreet2>P. O. BOX 696000</rptOwnerStreet2>
            <rptOwnerCity>SAN ANTONIO</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>78269-6000</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SVP &amp; CTO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>42069</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Performance Shares</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2021-01-23</value>
            </exerciseDate>
            <expirationDate>
                <value>2021-01-23</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>8595.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Performance Shares</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2022-01-22</value>
            </exerciseDate>
            <expirationDate>
                <value>2022-01-22</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>6680.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Performance Shares</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2023-01-21</value>
            </exerciseDate>
            <expirationDate>
                <value>2023-01-21</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5024.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Performance shares are payable in shares of common stock ranging from zero to 200 percent.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Ethan A. Jones, as Attorney-in-Fact for Cheryl L. Thomas</signatureName>
        <signatureDate>2020-09-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>thomascheryllpoa.txt
<DESCRIPTION>POA - THOMAS
<TEXT>
July 30, 2020

Valero Energy Corporation
P.O. Box 696000
San Antonio, Texas 78269-6000

Attention:  Corporate Secretary

Re:     Section 16 Reporting

The undersigned hereby constitutes and appoints
J. Stephen Gilbert and Ethan A. Jones,
or any of them, each with power to act without the other,
as my true and lawful attorneys-in-fact and agents,
for me in my name, place and stead, to sign and
file any Form ID, Form 3, Form 4, Form 5, or related
instrument, certificate, or document (including
amendments to these forms and documents) required
to be filed by me pursuant to Section 16(a) of the
Securities Exchange Act of 1934, as amended, with
respect to the Common Stock, $.01 par value, and
any other equity securities of Valero Energy
Corporation.  This authority shall remain in full
force and effect until revoked by me in writing.

Each attorney-in-fact and agent is hereby
authorized to file or cause to be filed with the
Securities and Exchange Commission a duplicate
of this letter to serve as confirmation of
the authority of such attorney-in-fact and
agent to file such forms.

Very truly yours,

(signature) Cheryl L. Thomas
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
