NL INDUSTRIES INC — Director's Dealing 2011

Nov 28, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: NL INDUSTRIES INC (NL)
CIK: 0000072162
Period of Report: 2011-11-23

Reporting Person: SIMMONS HAROLD C (Director, Chairman of the Board & CEO, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-11-23	Common stock $0.125 par value	P	10000	$12.1314	Acquired	399385	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common stock $0.125 par value	40387531	Indirect
Common stock $0.125 par value	1052054	Direct
Common stock $0.125 par value	222100	Indirect
Common stock $0.125 par value	2000	Indirect

Footnotes

F1: Open market purchase by the reporting person's spouse.

F2: The price reported in Column 4 is a weighted average price. These acquisitions involved purchases at 13 different prices ranging from $11.94 to $12.25 per share. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the U.S. Security and Exchange Commission, upon request, the full information regarding these purchases.

F3: Directly held by the reporting person's spouse. The reporting person disclaims beneficial ownership of any shares of the issuer's common stock that his spouse holds.

F4: Directly held by Valhi, Inc. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationship to the reporting person.

F5: Directly held by TIMET Finance Management Company. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationship to the reporting person.

F6: Directly held by Kronos Worldwide, Inc. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationship to the reporting person.