UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940 ( ) Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instructions 1(b). 1. Name and Address of Reporting Person: Robert D. Hardy, 16825 Northchase Dr., Suite 1200, Houston, TX 77060 2. Issuer Name and Ticker or Trading Symbol: NL Industries, Inc. (NL) 3. IRS or Social Security Number of Reporting Person, if an entity (Voluntary): 4. Statement for Month/Day/Year: November 20, 2002 5. If Amendment, Date of Original (Month/Day/Year): 6. Relationship of Reporting Person(s) to Issuer (Check all applicable): ( ) Director ( ) 10% Owner ( X ) Officer (give title below) ( ) Other (specify below) Vice President, Chief Financial Officer, Controller, Treasurer and Assistant Secretary 7. Individual or Joint/Group Filing (Check Applicable Line): ( X ) Form filed by One Reporting Person; ( ) Form filed by More than One Reporting Person TABLE I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned LINE ONE: 1. Title of Security (Instr. 3): Common Stock 2. Transaction Date (Month/Day/Year): November 20, 2002 2A. Deemed Execution Date if any (Month/Day/Year): 3. Transaction Code (Instr. 8): Code F V N/A 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5): Amount 16,344 (A) or (D) (D) Price $18.00 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4): 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4): D 7. Nature of Indirect Beneficial Ownership (Instr. 4): LINE TWO: 1. Title of Security (Instr. 3): Common Stock 2. Transaction Date (Month/Day/Year): November 20, 2002 2A.Deemed Execution Date if any (Month/Day/Year): 3. Transaction Code (Instr. 8): Code M V N/A 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5): Amount 4,000 (A) or (D) (A) Price $11.875 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4): 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4): D 7. Nature of Indirect Beneficial Ownership (Instr. 4): LINE THREE: 1. Title of Security (Instr. 3): Common Stock 2. Transaction Date(Month/Day/Year): November 20, 2002 2A. Deemed Execution Date if any (Month/Day/Year): 3. Transaction Code (Instr. 8): Code M V N/A 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5): Amount 6,000 (A) or (D) (A) Price $11.2813 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4): 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4): D 7. Nature of Indirect Beneficial Ownership (Instr. 4): LINE FOUR: 1. Title of Security (Instr. 3): Common Stock 2. Transaction Date (Month/Day/Year): November 20, 2002 2A. Deemed Execution Date if any (Month/Day/Year): 3. Transaction Code (Instr. 8): Code M V N/A 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5): Amount 6,000 (A) or (D) (A) Price $12.7813 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4): 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4): D 7. Nature of Indirect Beneficial Ownership (Instr. 4): LINE FIVE: 1. Title of Security (Instr. 3): Common Stock 2. Transaction Date (Month/Day/Year): November 20, 2002 2A. Deemed Execution Date if any (Month/Day/Year): 3. Transaction Code (Instr. 8): Code M V N/A 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5): Amount 4,000 (A) or (D) (A) Price $13.375 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4): 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4): D 7. Nature of Indirect Beneficial Ownership (Instr. 4): LINE SIX: 1. Title of Security (Instr. 3): Common Stock 2. Transaction Date (Month/Day/Year): November 20, 2002 2A.Deemed Execution Date if any (Month/Day/Year): 3. Transaction Code (Instr. 8): Code M V N/A 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5): Amount 3,425 (A) or (D) (A) Price $14.25 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4): 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4): D 7. Nature of Indirect Beneficial Ownership (Instr. 4): LINE SEVEN: 1. Title of Security (Instr. 3): Common Stock 2. Transaction Date (Month/Day/Year): November 20, 2002 2A. Deemed Execution Date if any (Month/Day/Year): 3. Transaction Code (Instr. 8): Code D V N/A 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5): Amount 3,653 (A) or (D) (D) Price $18.00 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4): 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4): D 7. Nature of Indirect Beneficial Ownership (Instr. 4): LINE EIGHT: 1. Title of Security (Instr. 3): Common Stock 2. Transaction Date (Month/Day/Year): November 20, 2002 2A. Deemed Execution Date if any (Month/Day/Year): 3. Transaction Code (Instr. 8): Code F V N/A 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5): Amount 3,428 (A) or (D) (D) Price $18.00 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4): 16,344 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4): D 7. Nature of Indirect Beneficial Ownership (Instr. 4): TABLE II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) LINE ONE: 1. Title of Derivative Security (Instr.3): Stock Options (right to buy) 2. Conversion or Exercise Price of Derivative Security: $14.25 3. Transaction Date (Month/Day/Year): November 20, 2002 3A. Deemed Execution Date, if any (Month/Day/Year): 4. Transaction Code (Instr. 8) Code: D V: N/A 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) (A): (D): 1,000 6. Date Exerciseable and Expiration Date (Month/Day/Year) Date Exercisable: February 14, 2001 Expiration Date: February 14, 2006 7. Title and Amount of Underlying Securities (Instr. 3 and 4) Title: Common Stock Amount or Number of Shares: 1,000 8. Price of Derivative Security (Instr. 5): $3.75 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4): -0- 10.Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr.4): D 11. Nature of Indirect Beneficial Ownership (Instr. 4): N/A LINE TWO: 1. Title of Derivative Security (Instr.3): Stock Options (right to buy) 2. Conversion or Exercise Price of Derivative Security: $14.875 3. Transaction Date (Month/Day/Year): November 20, 2002 3A. Deemed Execution Date, if any (Month/Day/Year): 4. Transaction Code (Instr. 8) Code: D V: N/A 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) (A): (D): 10,000 6. Date Exerciseable and Expiration Date (Month/Day/Year) Date Exercisable: February 12, 2002 Expiration Date: February 12, 2007 7. Title and Amount of Underlying Securities (Instr. 3 and 4) Title: Common Stock Amount or Number of Shares: 10,000 8. Price of Derivative Security (Instr. 5): $3.125 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4): -0- 10.Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr.4): D 11. Nature of Indirect Beneficial Ownership (Instr. 4): N/A LINE THREE: 1. Title of Derivative Security (Instr.3): Stock Options (right to buy) 2. Conversion or Exercise Price of Derivative Security: $14.2813 3. Transaction Date (Month/Day/Year): November 20, 2002 3A. Deemed Execution Date, if any (Month/Day/Year): 4. Transaction Code (Instr. 8) Code: D V: N/A 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) (A): (D): 6,000 6. Date Exerciseable and Expiration Date (Month/Day/Year) Date Exercisable: February 10, 2002 Expiration Date: Feburary 10, 2009 7. Title and Amount of Underlying Securities (Instr. 3 and 4) Title: Common Stock Amount or Number of Shares: 6,000 8. Price of Derivative Security (Instr. 5): $3.7187 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4): -0- 10.Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr.4): D 11. Nature of Indirect Beneficial Ownership (Instr. 4): N/A LINE FOUR: 1. Title of Derivative Security (Instr.3): Stock Options (right to buy) 2. Conversion or Exercise Price of Derivative Security: $14.25 3. Transaction Date (Month/Day/Year): November 20, 2002 3A. Deemed Execution Date, if any (Month/Day/Year): 4. Transaction Code (Instr. 8) Code: D V: N/A 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) (A): (D): 8,575 6. Date Exerciseable and Expiration Date (Month/Day/Year) Date Exercisable: Feburary 9, 2002 Expiration Date: Feburary 9, 2010 7. Title and Amount of Underlying Securities (Instr. 3 and 4) Title: Common Stock Amount or Number of Shares: 8,575 8. Price of Derivative Security (Instr. 5): $3.75 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4): -0- 10.Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr.4): D 11. Nature of Indirect Beneficial Ownership (Instr. 4): N/A LINE FIVE: 1. Title of Derivative Security (Instr.3): Stock Options (right to buy) 2. Conversion or Exercise Price of Derivative Security: $11.875 3. Transaction Date (Month/Day/Year): November 20, 2002 3A. Deemed Execution Date, if any (Month/Day/Year): 4. Transaction Code (Instr. 8) Code: M V: N/A 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) (A): (D): 4,000 6. Date Exerciseable and Expiration Date (Month/Day/Year) Date Exercisable: February 12, 2002 Expiration Date: February 12, 2007 7. Title and Amount of Underlying Securities (Instr. 3 and 4) Title: Common Stock Amount or Number of Shares: 4,000 8. Price of Derivative Security (Instr. 5): $11.875 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4): -0- 10.Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr.4): D 11. Nature of Indirect Beneficial Ownership (Instr. 4): N/A LINE SIX: 1. Title of Derivative Security (Instr.3): Stock Options (right to buy) 2. Conversion or Exercise Price of Derivative Security: $13.375 3. Transaction Date (Month/Day/Year): November 20, 2002 3A. Deemed Execution Date, if any (Month/Day/Year): 4. Transaction Code (Instr. 8) Code: M V: N/A 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) (A): (D): 4,000 6. Date Exerciseable and Expiration Date (Month/Day/Year) Date Exercisable: February 12, 2002 Expiration Date: February 12, 2007 7. Title and Amount of Underlying Securities (Instr. 3 and 4) Title: Common Stock Amount or Number of Shares: 4,000 8. Price of Derivative Security (Instr. 5): $13.375 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4): -0- 10.Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr.4): D 11. Nature of Indirect Beneficial Ownership (Instr. 4): N/A LINE SEVEN: 1. Title of Derivative Security (Instr.3): Stock Options (right to buy) 2. Conversion or Exercise Price of Derivative Security: $11.2813 3. Transaction Date (Month/Day/Year): November 20, 2002 3A. Deemed Execution Date, if any (Month/Day/Year): 4. Transaction Code (Instr. 8) Code: M V: N/A 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) (A): (D): 6,000 6. Date Exerciseable and Expiration Date (Month/Day/Year) Date Exercisable: Feburary 10, 2002 Expiration Date: February 10, 2009 7. Title and Amount of Underlying Securities (Instr. 3 and 4) Title: Common Stock Amount or Number of Shares: 6,000 8. Price of Derivative Security (Instr. 5): $11.2813 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4): -0- 10.Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr.4): D 11. Nature of Indirect Beneficial Ownership (Instr. 4): N/A LINE EIGHT: 1. Title of Derivative Security (Instr.3): Stock Options (right to buy) 2. Conversion or Exercise Price of Derivative Security: $12.7813 3. Transaction Date (Month/Day/Year): November 20, 2002 3A. Deemed Execution Date, if any (Month/Day/Year): 4. Transaction Code (Instr. 8) Code: M V: N/A 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) (A): (D): 6,000 6. Date Exerciseable and Expiration Date (Month/Day/Year) Date Exercisable: Feburary 10, 2002 Expiration Date: February 10, 2009 7. Title and Amount of Underlying Securities (Instr. 3 and 4) Title: Common Stock Amount or Number of Shares: 6,000 8. Price of Derivative Security (Instr. 5): $12.7813 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4): -0- 10.Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr.4): D 11. Nature of Indirect Beneficial Ownership (Instr. 4): N/A LINE NINE: 1. Title of Derivative Security (Instr.3): Stock Options (right to buy) 2. Conversion or Exercise Price of Derivative Security: $14.25 3. Transaction Date (Month/Day/Year): November 20, 2002 3A. Deemed Execution Date, if any (Month/Day/Year): 4. Transaction Code (Instr. 8) Code: M V: N/A 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) (A): (D): 3,425 6. Date Exerciseable and Expiration Date (Month/Day/Year) Date Exercisable: Feburary 9, 2002 Expiration Date: Feburary 9, 2010 7. Title and Amount of Underlying Securities (Instr. 3 and 4) Title: Common Stock Amount or Number of Shares: 3,425 8. Price of Derivative Security (Instr. 5): $14.25 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4): -0- 10.Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4): D 11. Nature of Indirect Beneficial Ownership (Instr. 4): N/A Explanation of Responses: _______________________________________ November 21, 2002 **Signature of Reporting Person Date Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. * If the form is filed by more than one reporting person, see Instruction 4(b)(v). ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). Note: File three copies of this Form, on of which must be manually signed. If space is insufficient, see Instruction 6 for procedure