| 1991-04-12 | 386740 | 42-051-33224 | BRINKMAN-GREEN UNIT #2 | UNION PACIFIC RESOURCES COMPANY | DRILL | 12,600 | Y |
| 1991-04-11 | 386677 | 42-051-33222 | BARTON-STUFFLEBEME UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 11,000 | Y |
| 1991-04-11 | 386677 | 42-051-33222 | BARTON-STUFFLEBEME UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 10,150 | Y |
| 1991-04-10 | 386619 | 42-051-33220 | SCAMARDO, MORRIS #3 | UNION PACIFIC RESOURCES COMPANY | DRILL | 11,700 | Y |
| 1991-04-01 | 386249 | 42-051-33218 | HUTCHINGS, ROBERT #1H | TORCH OPERATING COMPANY | DRILL | 14,800 | Y |
| 1991-04-01 | 386249 | 42-051-33218 | HUTCHINGS, ROBERT #H 1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 16,000 | Y |
| 1991-03-28 | 386094 | 42-051-33217 | LYONS #S 1WD | TRINITY PRODUCTS CO. | DRILL | 6,000 | |
| 1991-03-19 | 385753 | 42-051-33215 | PATRICK #1 | U. S. OPERATING, INC. | DRILL | 10,300 | Y |
| 1991-03-19 | 385753 | 42-051-33215 | PATRICK #1 | EDCO ENERGY, INC. | DRILL | 8,223 | Y |
| 1991-03-19 | 385527 | 42-051-33213 | MARION FALCO UNIT #1 | TEXACO E & P INC. | DRILL | 14,000 | Y |
| 1991-03-19 | 385527 | 42-051-33213 | MARION FALCO UNIT #1 | TEXACO E & P INC. | DRILL | 14,000 | Y |
| 1991-03-15 | 385786 | 42-051-33216 | BARTON-LIGHTSEY UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 12,000 | Y |
| 1991-03-15 | 385786 | 42-051-33216 | BARTON-LIGHTSEY UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 12,000 | Y |
| 1991-03-15 | 385786 | 42-051-33216 | BARTON-LIGHTSEY UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 10,730 | Y |
| 1991-03-12 | 385622 | 42-051-33214 | ELSIK-GIESENSCHLAG #1 | CHRISTICO PETROLEUM COMPANY | DRILL | 12,000 | Y |
| 1991-03-12 | 385272 | 42-051-33210 | TELG #5 | ALEXANDER ENERGY CORPORATION | DRILL | 12,165 | Y |
| 1991-03-12 | 384582 | 42-051-31938 | KUCERA, ALVIN #1H | COLUMBIA GAS DEVELOPMENT CORP. | RECOMP | 9,200 | Y |
| 1991-03-05 | 385325 | 42-051-33212 | SCAMARDO-SCAMARDO UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 12,700 | Y |
| 1991-03-05 | 385325 | 42-051-33212 | SCAMARDO-SCAMARDO UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 12,700 | Y |
| 1991-03-05 | 385325 | 42-051-33212 | M. SCAMARDO "B" #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 12,700 | Y |
| 1991-03-05 | 385315 | 42-051-33211 | BERAN-DWORSKY UNIT #2 | UNION PACIFIC RESOURCES COMPANY | DRILL | 11,800 | Y |
| 1991-03-01 | 385249 | 42-051-33209 | SAM UNIT #1 | WCS OIL AND GAS CORPORATION | DRILL | 12,500 | Y |
| 1991-02-28 | 385079 | 42-051-33207 | ALFORD, HALCUT #2 | RESERVE PRODUCTION, INC. | DRILL | 12,000 | Y |
| 1991-02-28 | 385078 | 42-051-33206 | BUCKMAN #3 | RESERVE PRODUCTION, INC. | DRILL | 12,000 | Y |
| 1991-02-28 | 385077 | 42-051-33205 | BUCKMAN #2 | RESERVE PRODUCTION, INC. | DRILL | 12,000 | Y |
| 1991-02-28 | 385008 | 42-051-33204 | GIESENSCHLAG, W. H. "B" #2 | TEXACO E & P INC. | DRILL | 13,500 | Y |
| 1991-02-27 | 385122 | 42-051-33208 | DESTEFANO-COOPER UNIT #1 | WILLIAMS, CLAYTON W., JR., INC. | DRILL | 8,200 | Y |
| 1991-02-20 | 377726 | 42-051-31284 | MACHAN, ROBERT AND MACHAN, A. D. #1H | TEXAS GULF HORIZONTAL, INC. | RENTR | 8,000 | Y |
| 1991-02-19 | 384737 | 42-051-31502 | SEBESTA, EARL #1 | AGGIELAND I SALT WATER DISP. LTD | RENTR | 6,000 | |
| 1991-02-15 | 384693 | 42-051-33203 | ACCURSO-PORTER UNIT #1 | WILLIAMS, CLAYTON W., JR., INC. | DRILL | 8,400 | Y |
| 1991-02-15 | 384693 | 42-051-33203 | ACCURSO-PORTER UNIT #1 | WILLIAMS, CLAYTON W., JR., INC. | DRILL | 8,400 | Y |
| 1991-02-14 | 384665 | 42-051-33202 | SIPTAK #1 | ENERGY DISCOVERY GROUP, INC. | DRILL | 8,000 | Y |
| 1991-02-13 | 384618 | 42-051-33201 | KNESEK-MAREK UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 13,300 | Y |
| 1991-02-13 | 384481 | 42-051-33199 | RATCLIFFE-HYVL UNIT #1 | COX & PERKINS EXPLORATION, INC. | DRILL | 12,100 | Y |
| 1991-02-12 | 384574 | 42-051-33200 | BAISY-WASHINGTON #1 | LANDMARK EXPLORATION INC. | DRILL | 11,700 | Y |
| 1991-02-12 | 384574 | 42-051-33200 | BAISY-WASHINGTON #1 | LANDMARK EXPLORATION INC. | DRILL | 10,850 | Y |
| 1991-02-11 | 384533 | 42-051-33198 | BRYAN #1 | UNITED OIL & MINERALS, INC. | DRILL | 10,000 | Y |
| 1991-02-08 | 384396 | 42-051-33197 | WEEBER #3 | UNITED OIL & MINERALS, INC. | DRILL | 10,000 | Y |
| 1991-02-07 | 383827 | 42-051-33191 | MIKESKA UNIT #1 | CHRISTICO PETROLEUM COMPANY | DRILL | 11,000 | Y |
| 1991-02-06 | 384274 | 42-051-33196 | BROWN - ACCURSO UNIT #1 | WILLIAMS, CLAYTON W., JR., INC. | DRILL | 8,300 | Y |
| 1991-02-04 | 384129 | 42-051-33195 | CHMELAR ET AL #1 | COLUMBIA GAS DEVELOPMENT CORP. | DRILL | 9,000 | Y |
| 1991-02-04 | 384128 | 42-051-33194 | FILIPONE #8 | COLUMBIA GAS DEVELOPMENT CORP. | DRILL | 9,300 | Y |
| 1991-01-31 | 384090 | 42-051-33193 | RAINBOW #1 | ULTRAMAR OIL AND GAS LIMITED | DRILL | 13,200 | Y |
| 1991-01-25 | 383894 | 42-051-33192 | KEY #6 | CRESCENT EXPLORATION COMPANY | DRILL | 3,550 | |
| 1991-01-23 | 383557 | 42-051-33190 | HUBERT LEWIS UNIT #1 | TEXACO PRODUCING INC. | DRILL | 13,500 | Y |
| 1991-01-22 | 383569 | 42-051-32235 | BARNHART #1 | SENECA RESOURCES CORP. | RECOMP | 12,544 | |
| 1991-01-15 | 383483 | 42-051-33188 | G. W. UNIT #1 | CHRISTICO PETROLEUM COMPANY | DRILL | 12,000 | Y |
| 1991-01-15 | 383482 | 42-051-33189 | S. G. UNIT #1 | CHRISTICO PETROLEUM COMPANY | DRILL | 12,000 | Y |
| 1991-01-15 | 383482 | 42-051-33189 | S. G. UNIT #1 | CHRISTICO PETROLEUM COMPANY | DRILL | 13,000 | Y |
| 1991-01-14 | 383375 | 42-051-33186 | PORTER-PORTER "B" UNIT #1 | UNION PACIFIC RESOURCES COMPANY | DRILL | 13,500 | Y |