| 1997-03-07 | 459551 | 42-479-36655 | PREVOST #5 | COLUMBUS ENERGY CORP. | DRILL | 7,600 | |
| 1997-03-07 | 459551 | 42-479-36655 | PREVOST #5 | COLUMBUS ENERGY CORP. | DRILL | 7,825 | |
| 1997-03-07 | 459470 | 42-479-36653 | RANGE-RODRIGUEZ GAS UNIT #1 | KILLAM OIL CO., LTD. | DRILL | 9,000 | |
| 1997-03-07 | 459470 | 42-479-36653 | RODRIGUEZ - RANGE GAS UNIT #1 | KILLAM OIL CO., LTD. | DRILL | 9,000 | |
| 1997-03-07 | 459470 | 42-479-36653 | RODRIGUEZ - RANGE GAS UNIT #1 | KILLAM OIL CO., LTD. | DRILL | 9,000 | |
| 1997-03-07 | 459442 | 42-479-36654 | D.C.R.C. 101B #20 | UNION PACIFIC RESOURCES COMPANY | DRILL | 5,500 | |
| 1997-03-06 | 459376 | 42-479-36651 | BRUNI-KILLAM "2184" #1 | KILLAM OIL CO., LTD. | DRILL | 11,000 | |
| 1997-03-06 | 459339 | 42-479-33773 | ROSEBERRY, D. L. #1 | CONOCO INC. | RECOMP | 11,100 | |
| 1997-03-05 | 459447 | 42-479-36652 | CHEVRON - CARR, EDITH #4 | CHEVRON U. S. A. INC. | DRILL | 10,700 | |
| 1997-02-28 | 459292 | 42-479-36650 | S. J. MARTIN GU #A 6 | MICHAEL PETROLEUM CORPORATION | DRILL | 11,000 | |
| 1997-02-28 | 459292 | 42-479-36650 | S.J. MARTIN GU #A 6 | MICHAEL PETROLEUM CORPORATION | DRILL | 11,000 | |
| 1997-02-26 | 459172 | 42-479-36649 | BENAVIDES, R.V. "C" #1 | TRANSTEXAS GAS CORPORATION | DRILL | 12,000 | |
| 1997-02-26 | 459172 | 42-479-36649 | BENAVIDES, ROSA V. "C" #1 | TRANSTEXAS GAS CORPORATION | DRILL | 12,000 | |
| 1997-02-26 | 459172 | 42-479-36649 | BENAVIDES, ROSA V. "C" #1 | TRANSTEXAS GAS CORPORATION | DRILL | 12,000 | |
| 1997-02-26 | 457779 | 42-479-36448 | VAQUILLAS RANCH 1631 A #6 | SONAT EXPLORATION CO. - HOUSTON | RECOMP | 10,000 | |
| 1997-02-25 | 459150 | 42-479-36648 | BRISCOE-OLMITOS GU #1A | ENRON OIL & GAS COMPANY | DRILL | 10,800 | |
| 1997-02-25 | 459093 | 42-479-36647 | DCRC 3B #36 | UNION PACIFIC RESOURCES COMPANY | DRILL | 5,500 | |
| 1997-02-24 | 458908 | 42-479-36646 | DCRC 101F #19 | UNION PACIFIC RESOURCES COMPANY | DRILL | 3,000 | |
| 1997-02-24 | 458908 | 42-479-36646 | DCRC 101F #19 | UNION PACIFIC RESOURCES COMPANY | DRILL | 3,000 | |
| 1997-02-18 | 458597 | 42-479-36645 | VAQUILLAS RANCH 1645 #3 | SONAT EXPLORATION CO. - HOUSTON | DRILL | 10,000 | |
| 1997-02-18 | 458263 | 42-479-36641 | CHIMICHANGA #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 12,500 | Y |
| 1997-02-13 | 458441 | 42-479-36642 | PREVOST #7 | COLUMBUS ENERGY CORP. | DRILL | 7,500 | |
| 1997-02-13 | 458441 | 42-479-36642 | PREVOST #7 | COLUMBUS ENERGY CORP. | DRILL | 7,716 | |
| 1997-02-10 | 458489 | 42-479-36644 | VILLAREAL #1 | CHEVRON U. S. A. INC. | DRILL | 9,700 | |
| 1997-02-10 | 458488 | 42-479-36643 | PENA-RODRIQUEZ 'A' #1 | CHEVRON U. S. A. INC. | DRILL | 8,000 | |
| 1997-02-06 | 458280 | 42-479-30855 | WEBB COUNTY SCHOOL LAND #6 | LEWIS PETRO PROPERTIES, INC. | RECOMP | 5,400 | |
| 1997-02-06 | 458235 | 42-479-36640 | D.C.R.C. 3C #42 | UNION PACIFIC RESOURCES COMPANY | DRILL | 2,800 | |
| 1997-02-05 | 458247 | 42-479-36639 | LAUREL, F. D. # 1390 #6A | LEWIS PETRO PROPERTIES, INC. | DRILL | 6,600 | |
| 1997-02-05 | 458222 | 42-479-36638 | SOUTH CALLAGHAN RANCH #146 | MOBIL PRODUCING TX. & N.M. INC. | DRILL | 9,500 | |
| 1997-02-05 | 458181 | 42-479-36637 | D.C.R.C. 100B #4 | UNION PACIFIC RESOURCES COMPANY | DRILL | 2,000 | |
| 1997-02-05 | 458180 | 42-479-36636 | D.C.R.C. 100B #3 | UNION PACIFIC RESOURCES COMPANY | DRILL | 6,500 | |
| 1997-02-05 | 458179 | 42-479-36635 | D.C.R.C. 100B #5 | UNION PACIFIC RESOURCES COMPANY | DRILL | 1,800 | |
| 1997-01-30 | 457964 | 42-479-36634 | KILLAM & HURD FEE "1690" #2 | KILLAM OIL CO., LTD. | DRILL | 10,000 | |
| 1997-01-29 | 457843 | 42-479-36633 | VAQUILLAS RANCH 136A #4 | SONAT EXPLORATION CO. - HOUSTON | DRILL | 10,500 | |
| 1997-01-29 | 457843 | 42-479-36633 | VAQUILLAS RANCH 136A #4 | SONAT EXPLORATION CO. - HOUSTON | DRILL | 10,500 | |
| 1997-01-23 | 457755 | 42-479-36632 | HIRSCH ESTATE 1771 #5 | CONOCO INC. | DRILL | 9,200 | |
| 1997-01-23 | 457737 | 42-479-36631 | CHEVRON - EDITH CARR #3 | CHEVRON U. S. A. INC. | DRILL | 10,600 | |
| 1997-01-23 | 457659 | 42-479-36629 | K & H FEE "573" #3 | KILLAM OIL CO., LTD. | DRILL | 9,000 | |
| 1997-01-23 | 456613 | 42-479-36605 | VAQUILLAS RANCH A-1 #145 | CONOCO INC. | DRILL | 11,300 | |
| 1997-01-22 | 457697 | 42-479-36630 | B.M.T. #55 | TRANSTEXAS GAS CORPORATION | DRILL | 11,600 | |
| 1997-01-22 | 457697 | 42-479-36630 | B.M.T. #55 | CONOCOPHILLIPS COMPANY | DRILL | 11,600 | |
| 1997-01-22 | 457478 | 42-479-36618 | D.C.R.C. 3B #34 | UNION PACIFIC RESOURCES COMPANY | DRILL | 3,000 | |
| 1997-01-21 | 457565 | 42-479-36627 | SOUTH CALLAGHAN RANCH #143 | MOBIL PRODUCING TX. & N.M. INC. | DRILL | 9,500 | |
| 1997-01-21 | 457565 | 42-479-36627 | SOUTH CALLAGHAN RANCH #143 | MOBIL PRODUCING TX. & N.M. INC. | DRILL | 9,500 | |
| 1997-01-21 | 457565 | 42-479-36627 | SOUTH CALLAGHAN RANCH #143 | MOBIL PRODUCING TX. & N.M. INC. | DRILL | 9,500 | |
| 1997-01-21 | 457564 | 42-479-36626 | SOUTH CALLAGHAN RANCH #145 | MOBIL PRODUCING TX. & N.M. INC. | DRILL | 9,500 | |
| 1997-01-21 | 457564 | 42-479-36626 | SOUTH CALLAGHAN RANCH #145 | MOBIL PRODUCING TX. & N.M. INC. | DRILL | 9,500 | |
| 1997-01-21 | 457564 | 42-479-36626 | SOUTH CALLAGHAN RANCH #145 | MOBIL PRODUCING TX. & N.M. INC. | DRILL | 10,500 | |
| 1997-01-21 | 457564 | 42-479-36626 | SOUTH CALLAGHAN RANCH #145 | MOBIL PRODUCING TX. & N.M. INC. | DRILL | 10,500 | |
| 1997-01-21 | 457563 | 42-479-36628 | SOUTH CALLAGHAN RANCH #144 | MOBIL PRODUCING TX. & N.M. INC. | DRILL | 9,500 | |