$PTEN
Market Cap:
$PTEN SEC Filings
| Filing | Filed On |
|---|---|
| SC 13G/A | 21 Jan 1998 |
| AMENDMENT NO. 1 TO FORM S-3 | 14 Jan 1998 |
| SCHEDULE 13G | 09 Jan 1998 |
| FORM 8-K FOR PERIOD ENDING JANUARY 7, 1998 | 07 Jan 1998 |
| FORM 8-K FOR PERIOD ENDING DECEMBER 29, 1997 | 07 Jan 1998 |
| FORM 8-K FOR PERIOD ENDING DECEMBER 30, 1997 | 07 Jan 1998 |
| FORM S-3 | 05 Jan 1998 |
| FORM 8-K | 24 Dec 1997 |
| AMENDMENT NO. 2 TO FORM 8-K | 18 Dec 1997 |
| DEFINITIVE SPECIAL PROXY | 02 Dec 1997 |
| AMENDMENT NO. 1 TO FORM S-3 | 20 Nov 1997 |
| PRE. PROXY SPECIAL MEETING | 19 Nov 1997 |
| FORM 10-Q FOR QUARTER ENDED SEPTEMBER 30, 1997 | 13 Nov 1997 |
| FORM S-3 | 05 Nov 1997 |
| FORM S-8 | 04 Nov 1997 |
| POST-EFFECTIVE AMENDMENT NO. 2 TO FORM S-8 | 04 Nov 1997 |
| AMENDMENT NO. 1 TO SCHEDULE 13G-CLOYCE A. TALBOTT | 24 Oct 1997 |
| AMENDMENT NO. 1 TO SCHEDULE 13G-TALBOTT FAMILY | 24 Oct 1997 |
| FORM S-8 | 11 Sep 1997 |
| FORM 8-K | 27 Aug 1997 |
