| 1999-10-04 | 488093 | 42-375-31619 | BIVINS #114R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,500 | |
| 1999-09-09 | 487418 | 42-375-31618 | MARSH RANCH #102 | SUNLIGHT EXPLORATION, INC. | DRILL | 4,000 | |
| 1999-09-09 | 487417 | 42-375-31617 | MARSH RANCH #202 | SUNLIGHT EXPLORATION, INC. | DRILL | 4,000 | |
| 1999-08-23 | 486891 | 42-375-31374 | BIVINS RANCH #102 | QUESTAR EXPL. AND PROD. CO. | RECOMP | 7,516 | |
| 1999-08-02 | 486244 | 42-375-31616 | MCBRIDE #98 | LUXOR OIL & GAS, INC. | DRILL | 3,200 | |
| 1999-08-02 | 486244 | 42-375-31616 | MCBRIDE #98 | LUXOR OIL & GAS, INC. | DRILL | 3,200 | |
| 1999-07-26 | 486172 | 42-375-31615 | BIVINS RANCH #1203 | QUESTAR EXPL. AND PROD. CO. | DRILL | 6,000 | |
| 1999-07-26 | 486171 | 42-375-31614 | BIVINS RANCH #1303 | QUESTAR EXPL. AND PROD. CO. | DRILL | 6,000 | |
| 1999-07-21 | 485973 | 42-375-31613 | MASTERSON "36" #159R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,400 | |
| 1999-07-12 | 485707 | 42-375-31612 | MASTERSON "63" #161R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,500 | |
| 1999-06-29 | 485512 | 42-375-31611 | MASTERSON "102" #156R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,300 | |
| 1999-06-17 | 485252 | 42-375-31610 | BIVINS RANCH #2005 | J. W. RESOURCES INC. | DRILL | 2,750 | |
| 1999-06-03 | 484895 | 42-375-31609 | BIVINS #117R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,400 | |
| 1999-06-03 | 484894 | 42-375-31608 | MASTERSON #158R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,000 | |
| 1999-06-03 | 484860 | 42-375-31607 | BIVINS #115R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,500 | |
| 1999-06-03 | 484859 | 42-375-31606 | BIVINS #116R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,500 | |
| 1999-05-27 | 484769 | 42-375-31605 | BIVINS #119R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,500 | |
| 1999-05-27 | 484768 | 42-375-31604 | BIVINS #120R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,500 | |
| 1999-05-25 | 484744 | 42-375-31603 | MASTERSON 83 #157R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,300 | |
| 1999-05-25 | 484743 | 42-375-31602 | MASTERSON 74 #155R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,600 | |
| 1999-05-25 | 484742 | 42-375-31484 | COUGHLIN #A 4 | PIONEER NATURAL RES. USA, INC. | RECOMP | 3,200 | Y |
| 1999-05-25 | 484742 | 42-375-31484 | COUGHLIN #A 4 | PIONEER NATURAL RES. USA, INC. | RECOMP | 3,300 | Y |
| 1999-05-25 | 484741 | 42-375-31601 | MASTERSON 82 #154R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,350 | |
| 1999-05-11 | 484457 | 42-375-31600 | MARSH RANCH #4048 | SUNLIGHT EXPLORATION, INC. | DRILL | 4,000 | |
| 1999-04-12 | 483765 | 42-375-31430 | BIVINS #A193 | PIONEER NATURAL RES. USA, INC. | RECOMP | 3,200 | Y |
| 1999-03-26 | 483482 | 42-375-31481 | BIVINS #A204 | PIONEER NATURAL RES. USA, INC. | RECOMP | 3,400 | Y |
| 1999-03-26 | 483482 | 42-375-31481 | BIVINS #A204 | PIONEER NATURAL RES. USA, INC. | RECOMP | 3,400 | Y |
| 1999-01-04 | 481860 | 42-375-31599 | BIVINS RANCH #3004 | J. W. RESOURCES INC. | DRILL | 2,750 | |
| 1998-12-08 | 481330 | 42-375-31598 | BIVINS "81" #A232 | PIONEER NATURAL RES. USA, INC. | DRILL | 3,300 | |
| 1998-10-23 | 480285 | 42-375-31597 | BIVINS #9806 | COLORADO INTERSTATE GAS CO. | DRILL | 400 | |
| 1998-10-23 | 480283 | 42-375-31596 | BIVINS #9804 | COLORADO INTERSTATE GAS CO. | DRILL | 400 | |
| 1998-08-28 | 479098 | 42-375-00371 | STATE "CR" #1006B | ANADARKO PETROLEUM CORP. | RECOMP | 2,020 | Y |
| 1998-08-28 | 479096 | 42-375-31377 | STATE -CR- #404B | ANADARKO PETROLEUM CORP. | RECOMP | 2,430 | Y |
| 1998-08-28 | 479096 | 42-375-31377 | STATE -CR- #404B | ANADARKO PETROLEUM CORP. | RECOMP | 2,450 | Y |
| 1998-08-10 | 478497 | 42-375-31595 | MASTERSON "10" #149R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,500 | |
| 1998-07-30 | 478336 | 42-375-31594 | BIVINS "34" #A231 | PIONEER NATURAL RES. USA, INC. | DRILL | 3,400 | |
| 1998-07-23 | 478164 | 42-375-31593 | BIVINS D #17R | SEAGULL ENERGY E&P INC. | DRILL | 2,400 | |
| 1998-07-17 | 477854 | 42-375-31591 | BIVINS A #18R | SEAGULL ENERGY E&P INC. | DRILL | 1,960 | |
| 1998-07-14 | 477855 | 42-375-31592 | BIVINS UNIT #17R | SEAGULL ENERGY E&P INC. | DRILL | 1,900 | |
| 1998-07-06 | 477570 | 42-375-31590 | BIVINS "36" #112R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,400 | |
| 1998-07-06 | 477569 | 42-375-31589 | BIVINS "57" #110R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,400 | |
| 1998-06-26 | 477429 | 42-375-31588 | BIVINS "35" #111R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,300 | |
| 1998-06-17 | 476370 | 42-375-31587 | BIVINS "15" #102R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,100 | |
| 1998-06-10 | 476871 | 42-375-31584 | MASTERSON "35" #142R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,500 | |
| 1998-06-10 | 476870 | 42-375-31585 | MASTERSON "10" #137R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,500 | |
| 1998-06-10 | 476869 | 42-375-31586 | BIVINS "31" #107R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,500 | |
| 1998-06-02 | 476631 | 42-375-31582 | CRAWFORD "24" #14R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,500 | |
| 1998-06-02 | 476631 | 42-375-31582 | CRAWFORD "24" #14R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,500 | |
| 1998-06-01 | 476634 | 42-375-31579 | MASTERSON "71" #148R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,500 | |
| 1998-06-01 | 476633 | 42-375-31580 | MASTERSON "81" #141R | PIONEER NATURAL RES. USA, INC. | DRILL | 2,500 | |