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Proc-Type: 2001,MIC-CLEAR
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<SEC-DOCUMENT>0001037854-05-000007.txt : 20050520
<SEC-HEADER>0001037854-05-000007.hdr.sgml : 20050520
<ACCEPTANCE-DATETIME>20050520104338
ACCESSION NUMBER:		0001037854-05-000007
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20050519
FILED AS OF DATE:		20050520
DATE AS OF CHANGE:		20050520

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NL INDUSTRIES INC
		CENTRAL INDEX KEY:			0000072162
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL INORGANIC CHEMICALS [2810]
		IRS NUMBER:				135267260
		STATE OF INCORPORATION:			NJ
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		5430 LBJ FREEWAY
		STREET 2:		SUITE 1700
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240-2697
		BUSINESS PHONE:		972-233-1700

	MAIL ADDRESS:	
		STREET 1:		5430 LBJ FREEWAY
		STREET 2:		SUITE 1700
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240-2697

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NATIONAL LEAD CO
		DATE OF NAME CHANGE:	19710520

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SIMMONS HAROLD C
		CENTRAL INDEX KEY:			0001037854
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-00640
		FILM NUMBER:		05846734

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		9722331700

	MAIL ADDRESS:	
		STREET 1:		THREE LINCOLN CENTRE
		STREET 2:		5430 LBJ FREEWAY STE 1700
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240-2697
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<FILENAME>hcs50519nl_ex.xml
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<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-05-19</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000072162</issuerCik>
        <issuerName>NL INDUSTRIES INC</issuerName>
        <issuerTradingSymbol>NL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001037854</rptOwnerCik>
            <rptOwnerName>SIMMONS HAROLD C</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5430 LBJ FREEWAY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1700</rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75240</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman of the Board &amp; CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common stock $0.125 par value</value>
            </securityTitle>
            <transactionDate>
                <value>2005-05-19</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>27800</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common stock $0.125 par value</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>40350931</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>by Valhi</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common stock $0.125 par value</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>222100</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>by TFMC</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common stock $0.125 par value</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>69475</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>by Spouse</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares issued for no cash consideration to nonemployee directors under the NL Industries, Inc. 1998 Long-Term Incentive Plan.</footnote>
        <footnote id="F2">Directly held by Valhi, Inc. See the Additional Information filed as Exhibit 99 to this statement for a description of the
 relationships among the persons joining in this filing.</footnote>
        <footnote id="F3">Directly held by TIMET Finance Management Company. See the Additional Information filed as Exhibit 99 to this statement for a
 description of the relationships among the persons joining in this filing.</footnote>
        <footnote id="F4">Directly held by the Reporting Person's spouse.  The Reporting Person disclaims beneficial ownership of these shares.</footnote>
    </footnotes>

    <remarks>Exhibit Index
99 Additional Information</remarks>

    <ownerSignature>
        <signatureName>A. Andrew R. Louis, Attorney-in-fact, for Harold C. Simmons</signatureName>
        <signatureDate>2005-05-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
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<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>hcs50519nl.htm
<DESCRIPTION>ADDITIONAL INFORMATION
<TEXT>
<HTML>
<HEAD>
<TITLE>
Additional Information
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<BODY>

<P>Additional Information                                           Exhibit 99</P>

     <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Valhi,              Inc.
     (&#147;Valhi&#148;),     and    TIMET    Finance     Management     Company
(&#147;TFMC&#148;)  are the  direct  holders  of  approximately  83.1% and 0.5%,
respectively, of the outstanding common stock of the issuer, NL Industries, Inc.
(&#147;NL&#148;).  Titanium Metals Corporation  (&#147;TIMET&#148;)  is the sole
stockholder of TFMC.</P>

     <P>Tremont LLC (&#147;Tremont&#148;),  Harold C. Simmons' spouse, The Combined Master
Retirement  Trust (the  &#147;CMRT&#148;)  and Valhi are the  direct  holders of
approximately  39.5%,  14.3%, 12.0% and 4.5%, of the outstanding shares of TIMET
common stock.  The ownership of Ms. Simmons is based on the 1,600,000  shares of
the TIMET's 6 3/4% Series A Convertible  Preferred  Stock,  par value $0.01 per
share (the  &#147;Series  A. Preferred  Stock  &#148;),  that she directly owns,
which are convertible  into 2,666,666  shares of the TIMET's common stock.  The
ownership of Valhi  includes  24,500  shares of the  TIMET's  common stock that
Valhi has the right to  acquire  upon  conversion  of 14,700  shares of Series A
Preferred  Stock that Valhi directly  holds.  The  percentage  ownership of the
TIMET's  common stock held by Ms. Simmons and Valhi assumes the full conversion
of  only  the  shares  of  Series  A  Preferred  Stock  owned  by her or  Valhi,
respectively.</P>

     <P>Valhi   is  the   sole   member   of   Tremont.   Valhi   Group,   Inc.
     (&#147;VGI&#148;),   National  City  Lines,  Inc.   (&#147;National&#148;),
Contran Corporation  (&#147;Contran&#148;),  the Harold Simmons Foundation, Inc.
(the &#147;Foundation&#148;), the Contran Deferred Compensation Trust No. 2 (the
&#147;CDCT No. 2&#148;) and the CMRT are the direct holders of 79.1%, 9.3% 2.1%,
0.9%, 0.4% and 0.1%, respectively,  of the common stock of Valhi. National, NOA,
Inc. (&#147;NOA&#148;) and Dixie Holding Company (&#147;Dixie Holding&#148;) are
the direct holders of approximately 73.3%, 11.4% and 15.3%, respectively, of the
outstanding  common  stock of VGI.  Contran  and NOA are the  direct  holders of
approximately 85.7% and 14.3%, respectively,  of the outstanding common stock of
National.    Contran   and    Southwest    Louisiana    Land    Company,    Inc.
(&#147;Southwest&#148;) are the direct holders of approximately 49.9% and 50.1%,
respectively,  of the outstanding  common stock of NOA. Dixie Rice  Agricultural
Corporation,  Inc. (&#147;Dixie  Rice&#148;) is the direct holder of 100% of the
outstanding common stock of Dixie Holding.  Contran is the holder of 100% of the
outstanding  common  stock  of  Dixie  Rice.  Contran  is  also  the  holder  of
approximately 88.9% of the outstanding common stock of Southwest.
</P>

<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Substantially all of
     Contran&#146;s  outstanding  voting stock is held by trusts established for
the benefit of certain  children  and  grandchildren  of Harold C.  Simmons (the
&#147;Trusts&#148;), of which Mr. Simmons is the sole trustee, or is held by Mr.
Simmons or persons or entities  related to Mr.  Simmons.  As sole trustee of the
Trusts,  Mr.  Simmons  has the power to vote and direct the  disposition  of the
shares of Contran  stock held by the Trusts.  Mr.  Simmons,  however,  disclaims
beneficial ownership of any shares of Contran stock that the Trusts hold.
</P>

<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Harold C. Simmons is the
chairman of the board and chief executive officer of the issuer and the chairman
of the board of each of Tremont, Valhi, VGI, National, NOA, Dixie Holding, Dixie
Rice, Southwest and Contran.</P>

<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Foundation directly holds
approximately 0.9% of the outstanding Valhi common stock. The Foundation is a
tax-exempt foundation organized for charitable purposes. Harold C. Simmons is
the chairman of the board and chief executive officer of the Foundation and may
be deemed to control the Foundation.</P>

<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The CDCT No. 2 directly holds
     approximately  0.4%  of the  outstanding  Valhi  common  stock.  U.S.  Bank
National  Association  serves  as  the  trustee  of  the  CDCT  No.  2.  Contran
established the CDCT  No.&#160;2 as an irrevocable  &#147;rabbi  trust&#148;  to
assist Contran in meeting certain deferred compensation obligations that it owed
to Harold C. Simmons.  If the CDCT No. 2 assets are insufficient to satisfy such
obligations,  Contran is obligated to satisfy the balance of such obligations as
they come due. Pursuant to the terms of the CDCT No.&#160;2, Contran (i) retains
the power to vote the shares of Valhi common stock held directly by the CDCT No.
2; (ii) retains  dispositive  power over such shares and (iii) may be deemed the
indirect beneficial owner of such shares.</P>

<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The CMRT directly holds
approximately 12.0% of the outstanding shares of TIMET common stock and 0.1% of
the outstanding shares of Valhi common stock. Valhi established the CMRT to
permit the collective investment by master trusts that maintain the assets of
certain employee benefit plans Valhi and related companies adopt. Harold C.
Simmons is the sole trustee of the CMRT and a member of the trust investment
committee for the CMRT. Valhi&#146;s board of directors selects the trustee and
members of the trust investment committee for the CMRT. Mr. Simmons is a
participant in one or more of the employee benefit plans that invest through the
CMRT. He disclaims beneficial ownership of any shares held by the CMRT, except
to the extent of his individual vested beneficial interest, if any, in the
assets held by the CMRT.</P>

<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;By virtue of the holding of
     the  offices,  the stock  ownership  and his  service  as  trustee,  all as
described above, (a) Mr. Simmons may be deemed to control the entities described
above and (b) Mr.  Simmons and certain of such entities may be deemed to possess
indirect  beneficial  ownership of shares of NL common stock that Valhi and TFMC
hold directly. However, Mr. Simmons disclaims beneficial ownership of the shares
of NL common stock beneficially  owned,  directly or indirectly,  by any of such
entities.</P>

<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;NL and a subsidiary of
     NL directly own 3,522,967  shares and 1,186,200  shares,  respectively,  of
Valhi common stock.  Pursuant to Delaware law, Valhi treats the shares of Valhi
common stock that NL and the subsidiary of NL own directly as treasury
stock for voting  purposes and for the purposes of this statement are not deemed
outstanding.</P>

<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Harold C. Simmons' spouse is
     the  direct  owner of  1,600,000  shares of the Series A  Preferred  stock,
69,475 shares of NL common stock and 43,400  shares of Valhi common  stock.  Mr.
Simmons may be deemed to share indirect beneficial ownership of such securities.
Mr. Simmons  disclaims  beneficial  ownership of all securities  that his spouse
holds directly.</P>

<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A trust of which Harold C.
     Simmons  and his  spouse  are  co-trustees  and the  beneficiaries  are the
grandchildren  of his  spouse is the  direct  holder  of 40,000  shares of Valhi
common stock.  Mr. Simmons,  as co-trustee of this trust,  has the power to vote
and direct the  disposition of the shares of Valhi common stock the trust holds.
Mr.  Simmons disclaims  beneficial  ownership of any shares of Valhi common
stock that this trust holds.</P>
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