| Date | Event |
| 3-Nov-09 | NL INDUSTRIES INC Files SEC form 8-K, Regulation FD Disclosure |
| 29-Oct-09 | NL INDUSTRIES INC Files SEC form 8-K, Regulation FD Disclosure |
| 17-Sep-09 | NL INDUSTRIES INC Files SEC form 8-K, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance |
| 8-Sep-09 | Ex-Date for dividend payment of $0.125 |
| 3-Sep-09 | NL INDUSTRIES INC Files SEC form 8-K, Other Events |
| 5-Aug-09 | NL INDUSTRIES INC Files SEC form 8-K, Regulation FD Disclosure |
| 21-Jul-09 | NL INDUSTRIES INC Files SEC form 8-K, Regulation FD Disclosure |
| 20-Jul-09 | Price hit new 52-week low ($6.12) |
| 10-Jul-09 | Price hit new 52-week low ($6.41) |
| 24-Jun-09 | NL INDUSTRIES INC Files SEC form 8-K, Other Events |
| 8-Jun-09 | Ex-Date for dividend payment of $0.125 |
| 13-May-09 | NL INDUSTRIES INC Files SEC form 8-K, Regulation FD Disclosure |
| 6-May-09 | NL INDUSTRIES INC Files SEC form 8-K, Regulation FD Disclosure |
| 6-May-09 | NL INDUSTRIES INC Files SEC form 10-Q, Quarterly Report |
| 4-May-09 | NL INDUSTRIES INC Files SEC form 8-K, Other Events |
| 26-Mar-09 | NL INDUSTRIES INC Files SEC form 8-K, Other Events |
| 12-Mar-09 | NL INDUSTRIES INC Files SEC form 8-K, Regulation FD Disclosure |
| 12-Mar-09 | NL INDUSTRIES INC Files SEC form 10-K, Annual Report |
| 23-Feb-09 | NL INDUSTRIES INC Files SEC form 8-K, Regulation FD Disclosure |
| 19-Dec-08 | Price hit new 52-week high ($14.57) |
| 5-Nov-08 | NL INDUSTRIES INC Files SEC form 8-K, Entry into a Material Definitive Agreement |
| 3-Nov-08 | NL INDUSTRIES INC Files SEC form 8-K, Regulation FD Disclosure |
| 3-Nov-08 | NL INDUSTRIES INC Files SEC form 10-Q, Quarterly Report |
| 30-Oct-08 | NL INDUSTRIES INC Files SEC form 8-K, Entry into a Material Definitive Agreement, Regulation FD Disclosure |