<SEC-DOCUMENT>0001567619-19-015605.txt : 20190801
<SEC-HEADER>0001567619-19-015605.hdr.sgml : 20190801
<ACCEPTANCE-DATETIME>20190801155402
ACCESSION NUMBER:		0001567619-19-015605
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190731
FILED AS OF DATE:		20190801
DATE AS OF CHANGE:		20190801

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CARVER KRISTY
		CENTRAL INDEX KEY:			0001485581

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07677
		FILM NUMBER:		19992527

	MAIL ADDRESS:	
		STREET 1:		16 SOUTH PENNSYLVANIA AVENUE
		CITY:			OKLAHOMA CITY
		STATE:			OK
		ZIP:			73107

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LSB INDUSTRIES INC
		CENTRAL INDEX KEY:			0000060714
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL INORGANIC CHEMICALS [2810]
		IRS NUMBER:				731015226
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3503 NW 63RD STREET
		STREET 2:		SUITE 500
		CITY:			OKLAHOMA CITY
		STATE:			OK
		ZIP:			73116
		BUSINESS PHONE:		4052354546

	MAIL ADDRESS:	
		STREET 1:		3503 NW 63RD STREET
		STREET 2:		SUITE 500
		CITY:			OKLAHOMA CITY
		STATE:			OK
		ZIP:			73116
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2019-07-31</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000060714</issuerCik>
        <issuerName>LSB INDUSTRIES INC</issuerName>
        <issuerTradingSymbol>LXU</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001485581</rptOwnerCik>
            <rptOwnerName>CARVER KRISTY</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3503 NW 63RD STREET, SUITE 500</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>OKLAHOMA CITY</rptOwnerCity>
            <rptOwnerState>OK</rptOwnerState>
            <rptOwnerZipCode>73116</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SVP/Treasurer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>44747</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">This amount includes: (a) 17,091 shares that were acquired pursuant to Restricted Stock Agreement dated March 4, 2016, pursuant to LSB Industries, Inc. 2008 Incentive Stock Plan, all shares of which have vested; (b) 12,552 shares that were granted pursuant to Restricted Stock Agreement dated December 14, 2017, pursuant to LSB Industries, Inc. 2016 Long Term Incentive Plan (the &quot;2016 Plan&quot;), which will vest on the third anniversary of the grant date; (c) 7,552 shares that were acquired pursuant to Restricted Stock Agreement dated January 3, 2019, pursuant to the 2016 Plan, one-third of which will vest on the first, second and third, anniversaries of the grant date; and (d) 7,552 shares that were acquired pursuant to Restricted Stock Agreement dated December 30, 2018, pursuant to the 2016 Plan, which will vest on the third anniversary of the grant date subject to the achievement of certain performance metrics.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Kristy Carver</signatureName>
        <signatureDate>2019-08-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
