| divested | 501796 | 42-479-37656 | DRILL | GATES RANCH "Y" | WEBB | 2000-11-16 | to: ROSETTA RESOURCES OPERATING LP |
| divested | 501728 | 42-479-37653 | DRILL | PETTY RANCH | WEBB | 2000-11-14 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 500335 | 42-479-37631 | DRILL | PETTY RANCH | WEBB | 2000-10-11 | to: WHITE OAK OPERATING COMPANY LLC |
| filed | 500577 | 42-479-37628 | DRILL | GATES RANCH | WEBB | 2000-10-10 | — |
| divested | 500425 | 42-479-37627 | DRILL | GATES RANCH 2 | WEBB | 2000-10-06 | to: ROSETTA RESOURCES OPERATING LP |
| divested | 500424 | 42-479-32458 | RECOMP | PETTY, O. S. | WEBB | 2000-10-06 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 498177 | 42-479-37572 | DRILL | PETTY RANCH | WEBB | 2000-08-11 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 497502 | 42-479-37558 | DRILL | PETTY RANCH | WEBB | 2000-07-28 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 497687 | 42-479-37561 | DRILL | GATES RANCH "Y" | WEBB | 2000-07-26 | to: ROSETTA RESOURCES OPERATING LP |
| divested | 496649 | 42-479-37542 | DRILL | GATES RANCH "Y" | WEBB | 2000-07-06 | to: ROSETTA RESOURCES OPERATING LP |
| divested | 496650 | 42-479-37541 | DRILL | GATES RANCH "Y" | WEBB | 2000-06-29 | to: KERNS O&G INC. |
| divested | 496257 | 42-479-37531 | DRILL | GATES RANCH "Y" | WEBB | 2000-06-19 | to: ROSETTA RESOURCES OPERATING LP |
| divested | 495333 | 42-479-37498 | DRILL | GATES RANCH 6 | WEBB | 2000-05-24 | to: ROSETTA RESOURCES OPERATING LP |
| divested | 493992 | 42-479-37471 | DRILL | GATES RANCH "W" | WEBB | 2000-04-13 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 493920 | 42-479-37470 | DRILL | PETTY RANCH | WEBB | 2000-04-11 | to: WHITE OAK OPERATING COMPANY LLC |
| filed | 493831 | 42-479-36951 | RECOMP | PETTY RANCH | WEBB | 2000-04-10 | — |
| divested | 491814 | 42-479-37430 | DRILL | PETTY RANCH | WEBB | 2000-02-09 | to: ST. MARY LAND & EXPLORATION CO. |
| divested | 490939 | 42-479-37397 | DRILL | PETTY RANCH | WEBB | 2000-01-12 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 490340 | 42-479-37390 | DRILL | PETTY RANCH | WEBB | 1999-12-20 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 489992 | 42-479-37388 | DRILL | GATES RANCH "W" | WEBB | 1999-12-03 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 489455 | 42-479-37378 | DRILL | GATES RANCH 5 | WEBB | 1999-11-15 | to: ROSETTA RESOURCES OPERATING LP |
| filed | 489134 | 42-479-33244 | RENTR | PETTY RANCH | WEBB | 1999-11-05 | — |
| filed | 489134 | 42-479-33244 | RENTR | PETTY RANCH | WEBB | 1999-11-05 | — |
| divested | 488760 | 42-479-37369 | DRILL | GATES RANCH "LE" | WEBB | 1999-10-25 | to: ROSETTA RESOURCES OPERATING LP |
| divested | 487420 | 42-479-37336 | DRILL | PETTY RANCH | WEBB | 1999-09-10 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 486831 | 42-435-34973 | DRILL | ALDWELL-MCPHERSON | SUTTON | 1999-08-23 | to: HIGHMOUNT EXPL & PROD TEXAS LLC |
| divested | 486062 | 42-479-37311 | DRILL | PETTY RANCH | WEBB | 1999-07-23 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 486062 | 42-479-37311 | DRILL | PETTY RANCH | WEBB | 1999-07-23 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 485972 | 42-479-36946 | RECOMP | GATES RANCH | WEBB | 1999-07-20 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 485269 | 42-479-37291 | DRILL | PETTY RANCH | WEBB | 1999-06-18 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 484565 | 42-479-37277 | DRILL | PETTY RANCH | WEBB | 1999-05-18 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 484565 | 42-479-37277 | DRILL | PETTY RANCH | WEBB | 1999-05-18 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 484443 | 42-479-37274 | DRILL | GATES RANCH | WEBB | 1999-05-17 | to: ROSETTA RESOURCES OPERATING LP |
| divested | 484443 | 42-479-37274 | DRILL | GATES RANCH | WEBB | 1999-05-17 | to: ROSETTA RESOURCES OPERATING LP |
| divested | 484443 | 42-479-37274 | DRILL | GATES RANCH | WEBB | 1999-05-17 | to: ROSETTA RESOURCES OPERATING LP |
| divested | 484069 | 42-479-05011 | RENTR | PETTY RANCH | WEBB | 1999-04-26 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 483594 | 42-479-37251 | DRILL | PETTY RANCH | WEBB | 1999-03-31 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 483418 | 42-479-37247 | DRILL | PETTY RANCH | WEBB | 1999-03-24 | to: ROSETTA RESOURCES OPERATING LP |
| divested | 483099 | 42-479-37240 | DRILL | PETTY RANCH | WEBB | 1999-03-10 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 483079 | 42-479-37239 | DRILL | PETTY RANCH | WEBB | 1999-03-05 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 482233 | 42-479-37219 | DRILL | PETTY RANCH | WEBB | 1999-01-26 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 482101 | 42-479-37213 | DRILL | PETTY RANCH | WEBB | 1999-01-25 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 481920 | 42-479-37209 | DRILL | PETTY RANCH | WEBB | 1999-01-08 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 481647 | 42-479-37198 | DRILL | PETTY RANCH | WEBB | 1998-12-29 | to: ROSETTA RESOURCES OPERATING LP |
| divested | 479913 | 42-479-37119 | DRILL | PETTY RANCH | WEBB | 1998-10-06 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 479644 | 42-479-37108 | DRILL | PETTY RANCH | WEBB | 1998-09-24 | to: ST. MARY LAND & EXPLORATION CO. |
| divested | 479644 | 42-479-37108 | DRILL | PETTY RANCH | WEBB | 1998-09-24 | to: ST. MARY LAND & EXPLORATION CO. |
| divested | 479644 | 42-479-37108 | DRILL | PETTY RANCH | WEBB | 1998-09-24 | to: ST. MARY LAND & EXPLORATION CO. |
| divested | 479304 | 42-479-37093 | DRILL | PETTY RANCH | WEBB | 1998-09-09 | to: WHITE OAK OPERATING COMPANY LLC |
| divested | 477643 | 42-435-34871 | DRILL | ALDWELL-MCPHERSON | SUTTON | 1998-07-08 | to: HIGHMOUNT EXPL & PROD TEXAS LLC |