| 1998-06-05 | 476674 | 42-395-30568 | CYPRESS #2 | NORTHFIELD ENTERPRISES, INC. | DRILL | 8,000 | Y |
| 1998-06-04 | 476677 | 42-395-30567 | BLACKJACK #1 | NORTHFIELD ENTERPRISES, INC. | DRILL | 8,000 | Y |
| 1998-05-20 | 476468 | 42-395-30566 | WILKINSON, B. J. #1 | J-W OPERATING CO. | DRILL | 13,500 | Y |
| 1998-05-19 | 476419 | 42-395-30565 | PRONGHORN UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 8,000 | Y |
| 1998-05-19 | 476419 | 42-395-30565 | PRONGHORN UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 8,000 | Y |
| 1998-04-30 | 475817 | 42-395-30564 | FULTON OL UNIT #1 | WILLIAMS, CLAYTON ENERGY, INC. | DRILL | 6,500 | Y |
| 1998-04-23 | 475573 | 42-395-30563 | MARATHON/T-BAR-X BRIDGES #1 | MARATHON OIL COMPANY | DRILL | 19,000 | Y |
| 1998-04-10 | 475231 | 42-395-30514 | FAZZINO-GLOCKZIN #1H | WCS OIL AND GAS CORPORATION | RECOMP | 9,000 | Y |
| 1998-04-10 | 475203 | 42-395-30534 | GOPHER UNIT #1 | UNION PACIFIC RESOURCES COMPANY | RECOMP | 7,600 | Y |
| 1998-04-10 | 475202 | 42-395-30533 | LORIA, JOSEPHINE UNIT #1 | UNION PACIFIC RESOURCES COMPANY | RECOMP | 7,600 | Y |
| 1998-04-09 | 475149 | 42-395-30562 | J. C. FAZZINO UNIT #1 | WILLIAMS, CLAYTON ENERGY, INC. | DRILL | 16,500 | |
| 1998-04-02 | 474943 | 42-395-30432 | HUDSON-DESTEFANO UNIT #1 | WILLIAMS, CLAYTON ENERGY, INC. | RECOMP | 6,700 | Y |
| 1998-03-24 | 474664 | 42-395-30431 | PEISKEE #1 | MARATHON OIL COMPANY | RECOMP | 14,250 | |
| 1998-03-18 | 474446 | 42-395-30561 | GLOCKZIN-CLOAT #2H | WCS OIL AND GAS CORPORATION | DRILL | 9,000 | Y |
| 1998-03-04 | 474031 | 42-395-30560 | CARIBOU UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 7,200 | Y |
| 1998-02-23 | 473665 | 42-395-30537 | TIMBERWOLF UNIT #1 | UNION PACIFIC RESOURCES COMPANY | RECOMP | 7,400 | Y |
| 1998-02-17 | 473398 | 42-395-30559 | BISON UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 7,000 | Y |
| 1998-02-17 | 473398 | 42-395-30559 | BISON #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 7,000 | Y |
| 1998-02-10 | 473215 | 42-395-30558 | MUSE-FAZZINO UNIT #1 | WILLIAMS, CLAYTON ENERGY, INC. | DRILL | 7,000 | Y |
| 1998-02-10 | 473215 | 42-395-30558 | MUSE-FAZZINO UNIT #1 | WILLIAMS, CLAYTON ENERGY, INC. | DRILL | 7,000 | Y |
| 1998-01-29 | 472750 | 42-395-30557 | BIG HORN UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 7,000 | Y |
| 1998-01-22 | 472545 | 42-395-30538 | WHITETAIL UNIT #1 | UNION PACIFIC RESOURCES COMPANY | RECOMP | 6,500 | Y |
| 1998-01-22 | 472545 | 42-395-30538 | WHITETAIL UNIT #1 | UNION PACIFIC RESOURCES COMPANY | RECOMP | 7,500 | Y |
| 1998-01-21 | 472211 | 42-395-30499 | BROUGHTON-LEWIS HEIRS UNIT #1 | WILLIAMS, CLAYTON ENERGY, INC. | FLD-XFR | 6,500 | Y |
| 1997-12-22 | 471569 | 42-395-30301 | MERRYMAN GAS UNIT NO.1 #2 | HERD PRODUCING COMPANY, INC. | RECOMP | 12,070 | |
| 1997-12-19 | 471450 | 42-395-30556 | RAWAH UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 6,300 | Y |
| 1997-12-15 | 471104 | 42-395-30555 | UPR/T-BAR-X DAUNTLESS #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 17,800 | |
| 1997-12-11 | 471109 | 42-395-30554 | WAPITI UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 7,600 | Y |
| 1997-12-10 | 471073 | 42-395-30362 | CARTER GAS UNIT NO.1 #2 | HERD PRODUCING COMPANY, INC. | RECOMP | 12,050 | |
| 1997-11-26 | 470595 | 42-395-30553 | BLACKTAIL UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 8,000 | Y |
| 1997-11-26 | 470578 | 42-395-30552 | ALICE HOELSCHER UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 6,500 | Y |
| 1997-11-25 | 470572 | 42-395-30551 | ANDERSON #1R | WCS OIL AND GAS CORPORATION | DRILL | 9,000 | Y |
| 1997-11-25 | 470572 | 42-395-30551 | ANDERSON #1R | HENRY, JOHN PETROLEUM | DRILL | 12,500 | Y |
| 1997-11-25 | 469103 | 42-395-30544 | COTROPIA-FERRARA UNIT #2 | WILLIAMS, CLAYTON ENERGY, INC. | DRILL | 6,800 | Y |
| 1997-11-10 | 469931 | 42-395-30550 | ANDERSON #1H | WCS OIL AND GAS CORPORATION | DRILL | 9,000 | Y |
| 1997-11-07 | 469836 | 42-395-30549 | SOELL #1 | PATTERSON PETROLEUM, INC. | DRILL | 8,500 | Y |
| 1997-10-31 | 469505 | 42-395-30548 | KAPER UNIT #1 | WILLIAMS, CLAYTON ENERGY, INC. | DRILL | 7,000 | Y |
| 1997-10-30 | 469498 | 42-395-30547 | EASTERLY #1 | UNITED OIL & MINERALS, INC. | DRILL | 7,500 | Y |
| 1997-10-27 | 469346 | 42-395-30546 | RAND-PAULSON RILEY TRUST #4 | BROUGHTON OPERATING CORP. | DRILL | 17,000 | |
| 1997-10-23 | 469104 | 42-395-30545 | COTROPIA-FRAZIER UNIT #1 | WILLIAMS, CLAYTON ENERGY, INC. | DRILL | 6,600 | Y |
| 1997-10-22 | 469137 | 42-395-30543 | JAX UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 7,700 | Y |
| 1997-10-22 | 469137 | 42-395-30543 | JAX UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 7,700 | Y |
| 1997-10-13 | 468708 | 42-395-30542 | BROUGHTON-MCAFEE UNIT #1 | WILLIAMS, CLAYTON ENERGY, INC. | DRILL | 6,550 | Y |
| 1997-10-03 | 468396 | 42-395-30541 | SPILLER T-BAR-X #1 | PATTERSON PETROLEUM, INC. | DRILL | 8,500 | Y |
| 1997-10-03 | 468396 | 42-395-30541 | SPILLER T-BAR-X #1 | PATTERSON PETROLEUM, INC. | DRILL | 8,500 | Y |
| 1997-10-03 | 468372 | 42-395-30540 | BROUGHTON-PERRONE UNIT #1 | WILLIAMS, CLAYTON ENERGY, INC. | DRILL | 7,100 | Y |
| 1997-10-01 | 468237 | 42-395-30539 | RIVERBEND UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 6,600 | Y |
| 1997-09-26 | 468115 | 42-395-30264 | DUNN, J. B. #1 | HUNTER PETROLEUM INC. | RECOMP | 8,000 | Y |
| 1997-09-26 | 468115 | 42-395-30264 | DUNN, J. B. #1 | HUNTER PETROLEUM INC. | RECOMP | 8,000 | Y |
| 1997-09-26 | 468115 | 42-395-30264 | DUNN, J. B. #1 | HUNTER PETROLEUM INC. | RECOMP | 8,000 | Y |