| 1997-04-04 | 460752 | 42-479-36670 | SOUTH CALLAGHAN RANCH #152 | MOBIL PRODUCING TX. & N.M. INC. | DRILL | 10,000 | |
| 1997-04-03 | 460669 | 42-479-36667 | SOUTH CALLAGHAN RANCH #149 | MOBIL PRODUCING TX. & N.M. INC. | DRILL | 10,000 | |
| 1997-04-03 | 460651 | 42-479-36666 | MACMAHON, P. A. #10 | CHEVRON U. S. A. INC. | DRILL | 7,500 | |
| 1997-04-03 | 460651 | 42-479-36666 | MACMAHON, P. A. #10 | CHEVRON U. S. A. INC. | DRILL | 6,747 | |
| 1997-04-03 | 460648 | 42-479-36665 | CHEVRON - EDITH CARR #5 | CHEVRON U. S. A. INC. | DRILL | 10,500 | |
| 1997-04-03 | 460645 | 42-479-35775 | MACMAHON, P. A. #7ST | CHEVRON U. S. A. INC. | RENTR | 7,500 | |
| 1997-04-02 | 460512 | 42-479-36664 | VAQUILLAS RANCH 1631 #3 | SONAT EXPLORATION CO. - HOUSTON | DRILL | 10,000 | |
| 1997-03-27 | 460420 | 42-479-35752 | PENA, H. L. #1 | ENRON OIL & GAS COMPANY | RECOMP | 7,704 | |
| 1997-03-27 | 460414 | 42-479-36663 | MARTINEZ, D.S. #5 | COLUMBUS ENERGY CORP. | DRILL | 7,900 | |
| 1997-03-26 | 460368 | 42-479-36662 | CARR, EDITH J. #6 | CONOCO INC. | DRILL | 9,700 | |
| 1997-03-21 | 460218 | 42-479-36661 | MARTIN, SOPHIE J. #9 | MICHAEL PETROLEUM CORPORATION | DRILL | 10,500 | |
| 1997-03-21 | 460218 | 42-479-36661 | MARTIN, SOPHIE J. #9 | MICHAEL PETROLEUM CORPORATION | DRILL | 10,500 | |
| 1997-03-21 | 460217 | 42-479-36660 | MARTIN, J. C. III #15 | MICHAEL PETROLEUM CORPORATION | DRILL | 10,500 | |
| 1997-03-20 | 460108 | 42-479-36659 | BRUNI, LILIA #6 | MICHAEL PETROLEUM CORPORATION | DRILL | 10,000 | |
| 1997-03-18 | 457289 | 42-479-36210 | ZIMMERMAN #1 | SAMSON LONE STAR LP | RECOMP | 10,600 | |
| 1997-03-12 | 459832 | 42-479-36658 | VAQUILLAS RANCH LTD #50 | CONOCO INC. | DRILL | 10,100 | |
| 1997-03-12 | 459831 | 42-479-36657 | VAQUILLAS RANCH LTD #51 | CONOCO INC. | DRILL | 10,600 | |
| 1997-03-12 | 459628 | 42-479-33582 | VAQUILLAS RANCH G #34 | CONOCO INC. | RECOMP | 12,490 | |
| 1997-03-11 | 459643 | 42-479-33460 | LOPEZ, ALONZO #1 | MARQUEE CORPORATION | RECOMP | 8,702 | |
| 1997-03-10 | 459621 | 42-479-36656 | HUBBERD "F" #1 | TRANSTEXAS GAS CORPORATION | DRILL | 9,800 | |
| 1997-03-10 | 459621 | 42-479-36656 | HUBBERD "F" #1 | TRANSTEXAS GAS CORPORATION | DRILL | 9,800 | |
| 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 | |