|
Form
|
|
(Filer)
|
Received
(
Period
)
|
| SC 13D/A |
 |
LUFKIN INDUSTRIES INC (GAMCO INVESTORS, INC. ET AL) |
05/17/13 |
| 4 |
|
LUFKIN INDUSTRIES INC(GIFFORD BRIAN J) |
05/15/13 (05/14/13) |
| 4 |
|
LUFKIN INDUSTRIES INC(WIENER THOMAS E) |
05/15/13 (05/14/13) |
| 4 |
|
LUFKIN INDUSTRIES INC(WIENER THOMAS E) |
05/13/13 (05/09/13) |
| SC 13D/A |
|
LUFKIN INDUSTRIES INC(GAMCO INVESTORS, INC. ET AL) |
05/10/13 |
| SC 13G/A |
|
LUFKIN INDUSTRIES INC(EAGLE ASSET MANAGEMENT INC) |
05/10/13 |
| 10-Q |
|
LUFKIN INDUSTRIES INC |
05/10/13 (03/31/13) |
| PREM14A |
|
LUFKIN INDUSTRIES INC |
04/25/13 (04/25/13) |
| DEFA14A |
|
LUFKIN INDUSTRIES INC |
04/24/13 |
| SC 13D |
|
LUFKIN INDUSTRIES INC(GAMCO INVESTORS, INC. ET AL) |
04/17/13 |
| DEFA14A |
|
LUFKIN INDUSTRIES INC |
04/16/13 |
| DEFA14A |
|
LUFKIN INDUSTRIES INC |
04/15/13 |
| DEFA14A |
|
LUFKIN INDUSTRIES INC |
04/12/13 |
| 8-K |
|
LUFKIN INDUSTRIES INC |
04/12/13 (04/12/13) |
| DEFA14A |
|
LUFKIN INDUSTRIES INC |
04/09/13 |
| DEFA14A |
|
LUFKIN INDUSTRIES INC |
04/08/13 |
| 8-K |
|
LUFKIN INDUSTRIES INC |
04/08/13 (04/05/13) |
| DEFA14A |
|
LUFKIN INDUSTRIES INC |
04/08/13 |
| DEF 14A |
|
LUFKIN INDUSTRIES INC |
03/27/13 (05/01/13) |
| 10-K |
|
LUFKIN INDUSTRIES INC |
03/01/13 (12/31/12) |