| 2006-08-15 | 623020 | 42-089-32495 | TERRANCE HLAVINKA CATTLE COMPANY #1 | MAIN ENERGY, INC. | DRILL | 12,500 | |
| 2006-08-10 | 624165 | 42-089-32497 | MATTERHORN #1 | RESACA RESOURCES, L.L.C. | DRILL | 14,500 | |
| 2006-08-03 | 623810 | 42-089-32496 | CRANEK #1 | AURORA RESOURCES CORPORATION | DRILL | 4,500 | |
| 2006-07-19 | 622640 | 42-089-32494 | SUNDERMAN #1 | NEW CENTURY EXPLORATION, INC. | DRILL | 14,000 | |
| 2006-07-13 | 622506 | 42-089-32493 | SCHIURRING #1 | SUNRAY OPERATING COMPANY LLC | DRILL | 4,500 | |
| 2006-07-13 | 622506 | 42-089-32493 | SCHIURRING #1 | SUNRAY OPERATING COMPANY LLC | DRILL | 4,500 | |
| 2006-07-12 | 622408 | 42-089-32492 | GLASSCOCK RANCH #1 | C & E OPERATING, INC. | DRILL | 13,000 | |
| 2006-07-11 | 621945 | 42-089-32491 | ZEBU #1 | EVEREST RESOURCE COMPANY | DRILL | 4,750 | |
| 2006-07-11 | 621945 | 42-089-32491 | ZEBU #1 | EVEREST RESOURCE COMPANY | DRILL | 4,750 | |
| 2006-06-13 | 620637 | 42-089-32490 | HLAVINKA #4 | SUE-ANN OPERATING, L.C. | DRILL | 4,050 | |
| 2006-06-08 | 620475 | 42-089-32489 | SCHOELLMANN #2 | TALON DEVELOPMENT COMPANY | DRILL | 4,350 | |
| 2006-06-08 | 620475 | 42-089-32489 | SCHOELLMANN #2 | NEW CENTURY EXPLORATION, INC. | DRILL | 4,500 | |
| 2006-06-08 | 620474 | 42-089-32488 | SCHOELLMANN #1 | TALON DEVELOPMENT COMPANY | DRILL | 2,300 | |
| 2006-06-01 | 620275 | 42-089-32487 | WALIGURA UNIT #2 | ROSETTA RESOURCES OPERATING LP | DRILL | 10,000 | |
| 2006-05-31 | 620118 | 42-089-32486 | BABER ESTATE GU #2 | NEWFIELD EXPLORATION COMPANY | DRILL | 18,000 | |
| 2006-05-31 | 620118 | 42-089-32486 | BABER ESTATE GU #2 | NEWFIELD EXPLORATION COMPANY | DRILL | 16,000 | |
| 2006-05-26 | 620017 | 42-089-32485 | KALLINA #4601 | PETROSEARCH OPERATING CO, LLC | DRILL | 16,500 | |
| 2006-05-19 | 619577 | 42-089-32484 | COLUMBUS TOWNSITE GU #1 | HURD ENTERPRISES, LTD. | DRILL | 12,000 | |
| 2006-05-15 | 619217 | 42-089-32483 | SHOOTER #1R | ROSETTA RESOURCES OPERATING LP | DRILL | 7,250 | |
| 2006-05-04 | 618722 | 42-089-32482 | ANDERSON, MARK N., ET UX #1 | MAGNUM PRODUCING, LP | DRILL | 7,000 | |
| 2006-05-02 | 618538 | 42-089-32481 | CRANEK GAS UNIT #1 | ROSETTA RESOURCES OPERATING LP | DRILL | 7,500 | |
| 2006-05-02 | 618538 | 42-089-32481 | CRANEK GAS UNIT #1 | ROSETTA RESOURCES OPERATING LP | DRILL | 7,500 | |
| 2006-04-28 | 618372 | 42-089-32480 | HOLSTEIN GAS UNIT #1 | ROSETTA RESOURCES OPERATING LP | DRILL | 4,500 | |
| 2006-04-28 | 618372 | 42-089-32480 | HOLSTEIN GAS UNIT #1 | ROSETTA RESOURCES OPERATING LP | DRILL | 4,760 | |
| 2006-04-28 | 618372 | 42-089-32480 | HOLSTEIN GAS UNIT #1 | ROSETTA RESOURCES OPERATING LP | DRILL | 4,760 | |
| 2006-04-25 | 618063 | 42-089-00537 | OBELGONER #1 | CAGO, INC. | RENTR | 10,800 | |
| 2006-04-20 | 617907 | 42-089-32479 | DONALD HELCAMP #1 | WHITEHEAD PROD. CO., INC. | DRILL | 10,500 | |
| 2006-04-20 | 617907 | 42-089-32479 | HELMCAMP, DONALD #1 | WHITEHEAD PROD. CO., INC. | DRILL | 10,500 | |
| 2006-04-11 | 617368 | 42-089-32478 | SEALY #1 | AKG OPERATING COMPANY | DRILL | 11,000 | |
| 2006-04-10 | 616938 | 42-089-32476 | ENGSTROM #1 | ROSETTA RESOURCES OPERATING LP | DRILL | 5,000 | |
| 2006-04-07 | 616940 | 42-089-32477 | SHOOTER #1 | ROSETTA RESOURCES OPERATING LP | DRILL | 7,250 | |
| 2006-04-07 | 616867 | 42-089-32475 | THOMAS #3 | CAMOIL, INC. | DRILL | 7,000 | |
| 2006-04-05 | 616738 | 42-089-32473 | SHERIDAN GAS UNIT #123 | DOMINION EXPL. & PROD., INC. | DRILL | 11,600 | |
| 2006-04-05 | 615912 | 42-089-30447 | CHESTERVILLE UNIT #10 | SAMSON LONE STAR LP | RECOMP | 6,642 | |
| 2006-03-31 | 616860 | 42-089-30581 | SAMPSON, M. #1 | WHITEHEAD PROD. CO., INC. | RENTR | 9,322 | |
| 2006-03-31 | 616860 | 42-089-30581 | SAMPSON, M. #1 | WHITEHEAD PROD. CO., INC. | RENTR | 9,322 | |
| 2006-03-31 | 616829 | 42-089-32474 | BUTLER GAS UNIT #1 | AURORA RESOURCES CORPORATION | DRILL | 10,000 | |
| 2006-03-31 | 616829 | 42-089-32474 | BUTLER GAS UNIT #1 | AURORA RESOURCES CORPORATION | DRILL | 10,000 | |
| 2006-03-31 | 615908 | 42-089-32300 | CHESTERVILLE UNIT #15 | SAMSON LONE STAR LP | RECOMP | 6,810 | |
| 2006-03-29 | 616511 | 42-089-32472 | LEHRER #1 | JAMEX, INC. | DRILL | 16,000 | |
| 2006-03-28 | 616596 | 42-089-32471 | SHERIDAN GAS UNIT #122 | DOMINION EXPL. & PROD., INC. | DRILL | 11,600 | |
| 2006-03-20 | 616083 | 42-089-32470 | COLOVACA GAS UNIT #1 | CABOT OIL & GAS CORPORATION | DRILL | 17,500 | |
| 2006-03-20 | 616083 | 42-089-32470 | COLOVACA GAS UNIT #1 | CABOT OIL & GAS CORPORATION | DRILL | 17,500 | |
| 2006-03-16 | 615734 | 42-089-32469 | CAMPBELL #2 | NEUHAUS, V. F. PROPERTIES, INC. | DRILL | 6,150 | |
| 2006-03-10 | 615665 | 42-089-32468 | SHERIDAN GAS UNIT #121 | DOMINION EXPL. & PROD., INC. | DRILL | 11,600 | |
| 2006-03-06 | 614919 | 42-089-32467 | WIED #1 | TALON DEVELOPMENT COMPANY | DRILL | 4,600 | |
| 2006-03-06 | 614919 | 42-089-32467 | WIED #1 | NEW CENTURY EXPLORATION, INC. | DRILL | 4,600 | |
| 2006-02-24 | 614846 | 42-089-32466 | GARRETT, WD #2 | PETROHAWK OPERATING COMPANY | DRILL | 18,000 | |
| 2006-02-21 | 614578 | 42-089-32465 | SHERIDAN GAS UNIT #120 | DOMINION EXPL. & PROD., INC. | DRILL | 11,600 | |
| 2006-02-13 | 613969 | 42-089-32087 | GARRISON BUNGE #1 | GARRISON LTD | RECOMP | 6,814 | |