| 1998-07-17 | 477908 | 42-127-33159 | BRISCOE #1088 | U. S. OPERATING, INC. | DRILL | 5,400 | |
| 1998-05-15 | 474534 | 42-127-00496 | MCKNIGHT "B" #3 | CAVALIER OIL & GAS, INC. | RECOMP | 3,100 | |
| 1998-05-01 | 475721 | 42-127-32995 | EL CID "B" #7 | FIRST ROCK, INC. | RECOMP | 9,000 | Y |
| 1998-04-24 | 475471 | 42-127-33158 | BRISCOE/HULSMAN #1682 | U. S. OPERATING, INC. | DRILL | 6,500 | |
| 1998-04-21 | 475276 | 42-127-33157 | MCKNIGHT UNIT "A" #17 | CAVALIER OIL & GAS, INC. | DRILL | 1,900 | |
| 1998-04-21 | 475276 | 42-127-33157 | MCKNIGHT UNIT #17 | CAVALIER OIL & GAS, INC. | DRILL | 2,600 | |
| 1998-04-21 | 475275 | 42-127-33156 | MCKNIGHT UNIT "B" #18 | CAVALIER OIL & GAS, INC. | DRILL | 1,900 | |
| 1998-04-21 | 475275 | 42-127-33156 | MCKNIGHT UNIT "B" #18 | CAVALIER OIL & GAS, INC. | DRILL | 3,000 | |
| 1998-03-24 | 474539 | 42-127-31711 | GARDNER, E. O. #1 | CARRIZO EXPLORATION, INC. | RENTR | 4,600 | |
| 1998-03-24 | 474538 | 42-127-33124 | MIDWAY #1 | CARRIZO EXPLORATION, INC. | RECOMP | 6,100 | |
| 1998-03-09 | 474086 | 42-127-32297 | TUMLINSON, BERT #6 | KERNS O & G, INC. | RECOMP | 4,800 | |
| 1998-03-05 | 473290 | 42-127-33155 | BRISCOE RANCH #34 | KERNS O & G, INC. | DRILL | 5,200 | |
| 1998-02-25 | 473800 | 42-127-31621 | LUPE, JOHN B. C #7 | OMNI OPERATING COMPANY(A) | RECOMP | 7,503 | |
| 1998-02-25 | 473799 | 42-127-31700 | LUPE, JOHN B. C #8 | OMNI OPERATING COMPANY(A) | RECOMP | 7,380 | |
| 1998-02-25 | 471850 | 42-127-00003 | HALSELL, EWING #1662L | TIDELANDS GAS CORPORATION | RECOMP | 1,750 | |
| 1998-02-17 | 473404 | 42-127-33151 | FITZSIMONS "A' #1714 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,000 | |
| 1998-02-17 | 473403 | 42-127-33152 | FITZSIMONS "A" #2416 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,000 | |
| 1998-02-17 | 473400 | 42-127-33153 | FITZSIMONS "A" #2501 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,000 | |
| 1998-02-17 | 473397 | 42-127-33154 | FITZSIMONS "A' #1713 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,000 | |
| 1998-01-30 | 472386 | 42-127-30902 | MCKNIGHT #1 | CAVALIER OIL & GAS, INC. | RECOMP | 2,600 | |
| 1998-01-29 | 472755 | 42-127-33149 | FITZSIMMONS "A" #5701 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,000 | |
| 1998-01-29 | 472754 | 42-127-33148 | FITZSIMMONS "A" #4205 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,000 | |
| 1998-01-29 | 472753 | 42-127-33150 | FITZSIMMONS "A" #5706 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,000 | |
| 1998-01-29 | 472753 | 42-127-33150 | FITZSIMMONS "A" #5706 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,000 | |
| 1998-01-27 | 472698 | 42-127-33147 | FITZSIMMONS "A" #6113R | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,000 | |
| 1998-01-27 | 472697 | 42-127-33146 | FITZSIMONS, HUGH A. ET AL #4616 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,000 | |
| 1998-01-27 | 472696 | 42-127-33145 | FITZSIMONS, HUGH A. ET AL #4615 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,000 | |
| 1998-01-27 | 472693 | 42-127-33144 | FITZSIMONS, HUGH A. ET AL #4505 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,000 | |
| 1998-01-06 | 471793 | 42-127-33143 | BRISCOE/HULSMAN #1705 | U. S. OPERATING, INC. | DRILL | 6,000 | |
| 1998-01-06 | 471793 | 42-127-33143 | BRISCOE/HULSMAN #1705 | U. S. OPERATING, INC. | DRILL | 5,780 | |
| 1997-12-16 | 471313 | 42-127-33142 | NANCE UNIT #3H | SAGE ENERGY COMPANY | DRILL | 6,800 | Y |
| 1997-12-16 | 471313 | 42-127-33142 | NANCE UNIT #3H | SAGE ENERGY COMPANY | DRILL | 6,800 | Y |
| 1997-12-16 | 471299 | 42-127-33141 | BURCH EXPLORATION GROCE #1 | KLUTTS, CARLOS J. | DRILL | 2,550 | |
| 1997-12-09 | 470461 | 42-127-33140 | SUZANNE #2 | BRONCO Z PRODUCTION | DRILL | 4,000 | |
| 1997-11-10 | 469743 | 42-127-33139 | BRISCOE/HULSMAN #1706B | U. S. OPERATING, INC. | DRILL | 6,700 | |
| 1997-10-30 | 469489 | 42-127-33138 | WILLERSON UNIT #1H | SAGE ENERGY COMPANY | DRILL | 6,700 | Y |
| 1997-10-17 | 468766 | 42-127-33131 | FITZSIMONS "A" #6113 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,500 | |
| 1997-10-17 | 468765 | 42-127-33137 | FITZSIMONS "A" #3616 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,500 | |
| 1997-10-17 | 468764 | 42-127-33136 | FITZSIMONS "A" #4513 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,500 | |
| 1997-10-17 | 468762 | 42-127-33135 | FITZSIMONS "A" #6305 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,500 | |
| 1997-10-17 | 468760 | 42-127-33134 | FITZSIMONS "A" #6308 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,500 | |
| 1997-10-17 | 468759 | 42-127-33133 | FITZSIMONS "A" #4601 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,500 | |
| 1997-10-17 | 468757 | 42-127-33132 | FITZSIMONS "A" #6116 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,500 | |
| 1997-10-15 | 468289 | 42-127-33124 | MIDWAY #1 | CARRIZO EXPLORATION, INC. | DRILL | 6,100 | |
| 1997-10-13 | 468380 | 42-127-33126 | FITZSIMONS "A" #6105 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,500 | |
| 1997-10-13 | 468377 | 42-127-33127 | FITZSIMONS "A" #6104 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,500 | |
| 1997-10-13 | 468376 | 42-127-33128 | FITZSIMONS "A" #3514 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,500 | |
| 1997-10-13 | 468375 | 42-127-33129 | FITZSIMONS "A" #4204 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,500 | |
| 1997-10-09 | 468623 | 42-127-33130 | SUZANNE #1 | BRONCO Z PRODUCTION | DRILL | 4,000 | |
| 1997-10-02 | 468315 | 42-127-33125 | FITZSIMONS "A" #612 | UNION PACIFIC RESOURCES COMPANY | DRILL | 4,500 | |