WASHINGTON, DC 20549



                                    FORM 8-K



                                 CURRENT REPORT



                Pursuant to Section 13 or 15(d) of the Securities
                              Exchange Act of 1934



                          Date of Report: May 20, 2004




                               NL INDUSTRIES, INC.
             (Exact name of Registrant as specified in its charter)



   New Jersey                          1-640                       13-5267260
 (State or other                    (Commission                   (IRS Employer
 jurisdiction of                    File Number)                 Identification
 incorporation)                                                        No.)



      5430 LBJ Freeway, Suite 1700, Dallas, TX                    75240-2697
      (Address of principal executive offices)                    (Zip Code)



                                 (972) 233-1700
              (Registrant's telephone number, including area code)



             (Former name or address, if changed since last report)

Item 9:  Regulation FD Disclosure

     Pursuant to Item 9 of this current report,  the registrant hereby furnishes
the  information set forth in the press release issued on May 20, 2004 a copy of
which is attached hereto as Exhibit 99.1 and incorporated herein by reference.

     The information,  including the exhibit,  the registrant  furnishes in this
Item 9 and  Exhibit  99.1 of this report is not deemed  "filed" for  purposes of
section 18 of the  Securities  Exchange  Act of 1934,  as amended,  or otherwise
subject to the  liabilities  of that section.  Registration  statements or other
documents  filed  with  the  Securities  and  Exchange   Commission   shall  not
incorporate this information by reference,  except as otherwise expressly stated
in such filing.


                                    SIGNATURE


     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.

                                        NL INDUSTRIES, INC.
                                           (Registrant)




                                        By:    /s/ Gregory M. Swalwell
                                               ----------------------------
                                               Gregory M. Swalwell
                                               Vice President, Finance




Date:  May 20, 2004



                                INDEX TO EXHIBITS


Exhibit No.      Description
- -----------      --------------------------------------------------

99.1             Press release dated May 20, 2004 issued by NL Industries, Inc.



NL INDUSTRIES, INC.                  Contact: Gregory M. Swalwell
Three Lincoln Centre                          Vice President, Finance and Chief
5430 LBJ Freeway, Suite 1700                  Financial Officer
Dallas, Texas   75240-2697                    (972) 233-1700
- -------------------------------------------------------------------------------
PRESS RELEASE
- -------------------------------------------------------------------------------

FOR IMMEDIATE RELEASE

           NL INDUSTRIES, INC. ANNOUNCES 2004 SECOND QUARTER DIVIDEND,
                  RESULTS OF ANNUAL MEETING OF SHAREHOLDERS AND
                  INTENT TO IMPLEMENT ITS DIVERSIFICATION PLAN

     DALLAS,  TEXAS - May 20, 2004 - NL Industries,  Inc.  (NYSE:  NL) announced
that its board of directors has declared a regular  quarterly  dividend equal to
twenty cents ($.20) per share on its common stock.  The dividend will be paid in
the form of common stock of Kronos Worldwide,  Inc. ("Kronos") (NYSE: KRO) owned
by the Company, valued based on the closing sale price of Kronos common stock on
May 19,  2004 of $30.00 per share.  The  dividend  is payable on July 5, 2004 to
shareholders  of record at the close of business on June 11, 2004.  Shareholders
will receive cash in lieu of fractional shares of Kronos common stock to be paid
in the dividend.

     At NL's annual  meeting of  shareholders  held today,  six  directors  were
elected for terms of one year. NL's directors are Cecil H. Moore,  Jr., Glenn R.
Simmons,  Harold C. Simmons,  General  Thomas P. Stafford  (retired),  Steven L.
Watson and Terry N. Worrell.

     NL also announced  today that, as part of its previously  disclosed plan to
diversify  its  holdings  and  business  interests,  NL  intends  to enter  into
discussions with Valhi, Inc. (NYSE:  VHI) regarding the possible  acquisition by
NL of up to the  approximately  69% of the  outstanding  common  stock  of CompX
International  Inc.  (NYSE:  CIX) owned by Valhi.  NL has formed a committee  of
independent  directors to consider and negotiate the potential terms pursuant to
which a purchase  of a  controlling  interest in CompX from Valhi may be made by
NL. There can be no assurance as to the final terms of a transaction or that any
transaction will be consummated, and no agreement or understanding regarding the
potential terms of any such transaction have been proposed.

     NL Industries,  Inc. is a major international  producer of titanium dioxide
pigments through its subsidiary Kronos.

     The statements in this release  relating to matters that are not historical
facts are  forward-looking  statements that represent  management's  beliefs and
assumptions based on currently available information.  Although NL believes that
the expectations reflected in such forward-looking statements are reasonable, it
cannot give any  assurances  that these  expectations  will prove to be correct.
Such statements by their nature involve substantial risks and uncertainties that
could  significantly  impact expected  results,  and actual future results could
differ materially from those described in such forward-looking statements. While
it is not possible to identify all factors,  NL continues to face many risks and
uncertainties.  Among the factors  that could  cause  actual  future  results to
differ materially include, but are not limited to:

o    Future supply and demand for NL's products,
o    The cyclicality of certain of NL's businesses,
o    Customer inventory levels,
o    Changes in raw material and other operating costs,
o    The possibility of labor disruptions,
o    General global economic and political conditions,
o    Competitive products and substitute products,
o    Customer and competitor strategies,
o    The impact of pricing and production decisions,
o    Competitive technology positions,
o    Fluctuations in currency exchange rates,
o    Operating interruptions,
o    The ability of NL to renew or refinance credit facilities,
o    The ultimate  outcome of income tax audits,  tax settlement  initiatives or
     other tax controversies,
o    Environmental matters,
o    Government laws and regulations and possible changes therein,
o    The ultimate resolution of pending litigation, and
o    Possible future litigation.

     Should one or more of these risks  materialize (or the consequences of such
a development  worsen),  or should the underlying  assumptions  prove incorrect,
actual results could differ  materially  from those  forecasted or expected.  NL
disclaims any  intention or  obligation to update or revise any  forward-looking
statement whether as a result of new information, future events or otherwise.


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