<SEC-DOCUMENT>0001520006-17-000191.txt : 20170824
<SEC-HEADER>0001520006-17-000191.hdr.sgml : 20170824
<ACCEPTANCE-DATETIME>20170824214235
ACCESSION NUMBER:		0001520006-17-000191
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170822
FILED AS OF DATE:		20170824
DATE AS OF CHANGE:		20170824

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Macalik Robert T
		CENTRAL INDEX KEY:			0001647280

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35410
		FILM NUMBER:		171050351

	MAIL ADDRESS:	
		STREET 1:		5400 LBJ FREEWAY
		STREET 2:		SUITE 1500
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Matador Resources Co
		CENTRAL INDEX KEY:			0001520006
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				274662601
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		5400 LBJ FREEWAY
		STREET 2:		SUITE 1500
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240
		BUSINESS PHONE:		9723715200

	MAIL ADDRESS:	
		STREET 1:		5400 LBJ FREEWAY
		STREET 2:		SUITE 1500
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Matador Holdco, Inc.
		DATE OF NAME CHANGE:	20110505
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_150362534055049.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-08-22</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001520006</issuerCik>
        <issuerName>Matador Resources Co</issuerName>
        <issuerTradingSymbol>MTDR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001647280</rptOwnerCik>
            <rptOwnerName>Macalik Robert T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5400 LBJ FREEWAY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1500</rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75240</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP, Chief Accounting Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2017-08-22</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>778</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>23.23</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>30699</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
                    <footnoteId id="F6"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Represents shares withheld by the Issuer in connection with the reporting person's net share settlement to satisfy tax liability based upon the vesting of 2,083 shares of restricted stock that were granted to the reporting person on August 22, 2016. No shares were sold by the reporting person to satisfy this tax liability.</footnote>
        <footnote id="F2">Includes 6,973 shares of restricted stock granted to the reporting person on July 6, 2017 that vest on the third anniversary of the date of grant.</footnote>
        <footnote id="F3">Includes 5,585 shares of restricted stock granted to the reporting person on February 16, 2017 that vest on the first, second and third anniversaries of the date of grant.</footnote>
        <footnote id="F4">Includes 4,167 shares of restricted stock granted to the reporting person on August 22, 2016 that vest on the second and third anniversaries of the date of grant.</footnote>
        <footnote id="F5">Includes 5,669 shares of restricted stock granted to the reporting person on July 18, 2016 that vest on the third anniversary of the date of grant.</footnote>
        <footnote id="F6">Includes 7,000 shares of restricted stock granted to the reporting person on July 6, 2015 that vest on the third anniversary of the date of grant.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Robert T. Macalik, by Kyle A. Ellis as attorney-in-fact</signatureName>
        <signatureDate>2017-08-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
