UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

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

              Date of Report (Date of the earliest event reported)
                                November 14, 2005
                                ----------------

                               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, Texas                   75240-2697
----------------------------------------------                ------------
  (Address of principal executive offices)                     (Zip Code)

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

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

Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2):

[   ]     Written  communications  pursuant to Rule 425 under the Securities Act
          (17 CFR 230.425)

[   ]     Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17
          CFR 240.14a-12)

[   ]     Pre-commencement  communications  pursuant to Rule 14d-2(b)  under the
          Exchange Act (17 CFR 240.14d-2(b))

[   ]     Pre-commencement  communications  pursuant to Rule 13e-4(c)  under the
          Exchange Act (17 CFR 240.13e-4(c))

Item 4.02 Non-Reliance on Previously  Issued  Financial  Statements or a Related
          Audit Report or Completed Interim Review.


(a) On November 14, 2005, the Company and its audit committee concluded that the
Company  would file a Form  10-K/A for the year ended  December  31, 2004 ("Form
10K/A")  and a Form  10-Q/A for the  quarters  ended March 31, 2005 and June 30,
2005  (the  "Form  10-Q/A's").   In  connection  with  the  preparation  of  its
consolidated  financial statements for the quarter ended September 30, 2005, the
Company   concluded  that  certain   misstatements  had  been  reported  in  its
previously-issued  consolidated  financial statements included in its (i) Annual
Report on Form 10-K for the year  ended  December  31,  2004  filed on March 30,
2005,  as amended on May 31,  2005  ("Original  Form  10-K") and (ii)  Quarterly
Reports on Form 10-Q for the  quarters  ended  March 31,  2005 and June 30, 2005
filed on May 10,  2005 and  August 3, 2005,  respectively  (the  "Original  Form
10-Q's").  Such misstatements  relate to the provision for income taxes, related
deferred income tax balances and other comprehensive income.


As a result of the  restatements  to  correct  for the  misstatements  discussed
above,  the  Company's  previously  issued  consolidated   financial  statements
contained in its (i) Annual Report on Form 10-K for the year ended  December 31,
2004 filed on March 30, 2005, as amended on May 31, 2005  ("Original Form 10-K")
and (ii)  Quarterly  Reports on Form 10-Q for the quarters  ended March 31, 2005
and June 30,  2005 filed on May 10, 2005 and August 3, 2005,  respectively  (the
"Original Form 10-Q's") should no longer be relied upon.

The Company is still in the process of evaluating these misstatements.  However,
based  on the  information  currently  available  to the  Company,  the  Company
believes that, among other things,  certain  previously-reported  provisions for
income taxes  recognized as a direct  reduction to the  Company's  stockholders'
equity  (retained  earnings  and  additional  paid-in  capital)  may  instead be
included in the  determination of the Company's  consolidated net income for the
affected periods,  and the aggregate effect of the restatements are not expected
to impact previously-reported cash flows from operating activities.

The  guidance  set  forth  in  Auditing  Standard  No. 2 of the  Public  Company
Accounting  Oversight  Board  states  that a  restatement  of  previously-issued
financial  statements  to reflect the  correction  of a  misstatement  should be
regarded as at least a significant  control deficiency and as a strong indicator
that a material weakness in internal control over financial reporting exists. In
connection  with the expected  filing of the Form 10-K/A and Form 10-Q/A's,  the
Company will also consider the effect of the  restatements  as it relates to the
Company's  previously-reported  assessments of the effectiveness of its internal
control over  financial  reporting  as of December 31, 2004,  March 31, 2005 and
June 30,  2005.  The  Company  believes  it is likely  that one or more  control
deficiencies  will be identified as a result of the  restatements  that would be
deemed to be a  material  weakness  and  therefore  preclude  the  Company  from
concluding that its internal  control over financial  reporting was effective as
of such dates.  In such an event,  the  Company's  previous  conclusion  that it
maintained  effective internal control over financial  reporting as of March 31,
2005 and June 30, 2005,  in each case as reported in Item 4 of the Original Form
10-Q's, would no longer be able to be relied upon and would be restated when the
Company files the Form 10-Q/A's.  The Company had previously  concluded that its
internal  control over  financial  reporting was  ineffective as of December 31,
2004 with respect to another matter.



As noted  above,  the  Company  is  still in the  process  of  evaluating  these
misstatements.  Upon  completion of the Company's  evaluation,  the Company will
file an amendment to the Current  Report to more fully describe the items giving
rise to the  restatements,  and quantify the effect of such  restatements to the
Company's  consolidated financial statements contained in the Original Form 10-K
and the Original Form 10-Q's.


The  Company's  management  and  audit  committee  have  discussed  the  matters
disclosed  in this Form 8-K with the  Company's  independent  registered  public
accounting firm, PricewaterhouseCoopers LLP.

                                   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 and Chief Financial Officer



Date:  November 14, 2005