| 382418 | Dec 14, 1990 | Dec 14, 1990 | Union Oil Company of California | Andrews | Parker, J. E. "H" #32 | 9,261 | 00335157 |
| 382417 | Dec 14, 1990 | Dec 14, 1990 | Union Oil Company of California | Andrews | Parker, J. E. "H" #31 | 9,253 | 00335158 |
| 382415 | Dec 14, 1990 | Dec 14, 1990 | Union Oil Company of California | Andrews | Parker, J. E. "H" #30 | 9,255 | 00335159 |
| 382413 | Dec 14, 1990 | Dec 14, 1990 | Union Oil Company of California | Andrews | Parker, J. E. "H" #29 | 9,250 | 00335177 |
| 382316 | Dec 12, 1990 | Dec 12, 1990 | Union Oil Company of California | Andrews | Parker, J. E. "H" #26 | 9,261 | 00334501 |
| 382315 | Dec 12, 1990 | Dec 12, 1990 | Union Oil Company of California | Andrews | Parker, J. E. "H" #21 | 9,435 | 00333965 |
| 382314 | Dec 12, 1990 | Dec 12, 1990 | Union Oil Company of California | Andrews | Parker, J. E. "H" #23 | 9,450 | 00333962 |
| 382313 | Dec 12, 1990 | Dec 12, 1990 | Union Oil Company of California | Andrews | Parker, J. E. "H" #25 | 9,353 | 00334373 |
| 381919 | Dec 4, 1990 | Dec 4, 1990 | Union Oil Company of California | Gaines | North Riley Unit #79 R | 7,350 | 16534288 |
| 381662 | Nov 28, 1990 | Nov 28, 1990 | Union Oil Company of California | Borden | Reinecke Unit #212 | 7,000 | 03331495 |
| 381543 | Nov 26, 1990 | Nov 26, 1990 | Union Oil Company of California | Gaines | North Riley Unit #345 | 7,350 | 16534284 |
| 381542 | Nov 26, 1990 | Nov 26, 1990 | Union Oil Company of California | Gaines | North Riley Unit #344 | 7,350 | 16534283 |
| 381541 | Nov 26, 1990 | Nov 26, 1990 | Union Oil Company of California | Gaines | North Riley Unit #150 | 7,350 | 16534282 |
| 379628 | Nov 20, 1990 | Nov 20, 1990 | Union Oil Company of California | Gaines | North Riley Unit #368 | 7,350 | 16534261 |
| 379628Amendment | Nov 20, 1990 | Nov 20, 1990 | Union Oil Company of California | Gaines | North Riley Unit #368 | 7,350 | 16534261 |
| 379627 | Nov 20, 1990 | Nov 20, 1990 | Union Oil Company of California | Gaines | North Riley Unit #360 | 7,350 | 16534260 |
| 379627Amendment | Nov 20, 1990 | Nov 20, 1990 | Union Oil Company of California | Gaines | North Riley Unit #360 | 7,350 | 16534260 |
| 379626 | Nov 20, 1990 | Nov 20, 1990 | Union Oil Company of California | Gaines | North Riley Unit #350 | 7,350 | 16534259 |
| 379626Amendment | Nov 20, 1990 | Nov 20, 1990 | Union Oil Company of California | Gaines | North Riley Unit #350 | 7,350 | 16534259 |
| 379625 | Nov 20, 1990 | Nov 20, 1990 | Union Oil Company of California | Gaines | North Riley Unit #307 | 7,350 | 16534258 |
| 379625Amendment | Nov 20, 1990 | Nov 20, 1990 | Union Oil Company of California | Gaines | North Riley Unit #307 | 7,350 | 16534258 |
| 379624 | Nov 20, 1990 | Nov 20, 1990 | Union Oil Company of California | Gaines | North Riley Unit #288 | 7,350 | 16534257 |
| 379624Amendment | Nov 20, 1990 | Nov 20, 1990 | Union Oil Company of California | Gaines | North Riley Unit #288 | 7,350 | 16534257 |
| 379623 | Nov 20, 1990 | Nov 20, 1990 | Union Oil Company of California | Gaines | North Riley Unit #347 | 7,350 | 16534256 |
| 379623Amendment | Nov 20, 1990 | Nov 20, 1990 | Union Oil Company of California | Gaines | North Riley Unit #347 | 7,350 | 16534256 |
| 379622 | Nov 20, 1990 | Nov 20, 1990 | Union Oil Company of California | Gaines | North Riley Unit #265 | 7,350 | 16534255 |
| 379622Amendment | Nov 20, 1990 | Nov 20, 1990 | Union Oil Company of California | Gaines | North Riley Unit #265 | 7,350 | 16534255 |
| 379621 | Nov 20, 1990 | Nov 20, 1990 | Union Oil Company of California | Gaines | North Riley Unit #327 | 7,350 | 16534254 |
| 379620 | Nov 20, 1990 | Nov 20, 1990 | Union Oil Company of California | Gaines | North Riley Unit #308 | 7,350 | 16534253 |
| 379620Amendment | Nov 20, 1990 | Nov 20, 1990 | Union Oil Company of California | Gaines | North Riley Unit #308 | 7,350 | 16534253 |
| 381072 | Nov 14, 1990 | Nov 14, 1990 | Union Oil Company of California | Andrews | University "GG" #2 | 9,900 | 00336849 |
| 380458 | Oct 31, 1990 | Oct 31, 1990 | Union Oil Company of California | Andrews | Dollarhide Unit #4019S | 10,036 | 00303583 |
| 380456 | Oct 31, 1990 | Oct 31, 1990 | Union Oil Company of California | Gaines | Beck #1 | 8,100 | 16534279 |
| 380456Amendment | Oct 31, 1990 | Oct 31, 1990 | Union Oil Company of California | Gaines | Beck #1 | 8,297 | 16534279 |
| 380140 | Oct 25, 1990 | Oct 25, 1990 | Union Oil Company of California | Ector | Moss Unit #6019 | 4,680 | 13536376 |
| 380140Amendment | Oct 25, 1990 | Oct 25, 1990 | Union Oil Company of California | Ector | Moss Unit #6019 | 4,680 | 13536376 |
| 380139 | Oct 25, 1990 | Oct 25, 1990 | Union Oil Company of California | Ector | Moss Unit #2111 | 4,700 | 13536375 |
| 380138 | Oct 25, 1990 | Oct 25, 1990 | Union Oil Company of California | Ector | Moss Unit #2210 | 4,700 | 13536374 |
| 379964 | Oct 22, 1990 | Oct 22, 1990 | Union Oil Company of California | Andrews | Dollarhide Unit #1685 | 6,900 | 00304904 |
| 379707 | Oct 17, 1990 | Oct 17, 1990 | Union Oil Company of California | Andrews | University -JB- #1 | 9,900 | 00335377 |
| 379705 | Oct 17, 1990 | Oct 17, 1990 | Union Oil Company of California | Andrews | Fasken Block "FA" #1 | 12,550 | 00303623 |
| 379102 | Oct 16, 1990 | Oct 16, 1990 | Union Oil Company of California | Andrews | University "JC" #2 | 9,950 | 00336817 |
| 379391 | Oct 12, 1990 | Oct 12, 1990 | Union Oil Company of California | Andrews | Phillps University "DD" #2 | 9,700 | 00336821 |
| 379109 | Oct 12, 1990 | Oct 12, 1990 | Union Oil Company of California | Andrews | University "JA" #2 | 9,850 | 00336818 |
| 379109Amendment | Oct 12, 1990 | Oct 12, 1990 | Union Oil Company of California | Andrews | University "JA" #2 | 8,680 | 00336818 |
| 379196 | Oct 9, 1990 | Oct 9, 1990 | Union Oil Company of California | Gaines | North Riley Unit #1312 | 7,350 | 16534239 |
| 379185 | Oct 9, 1990 | Oct 9, 1990 | Union Oil Company of California | Gaines | North Riley Unit #1311 | 7,350 | 16534241 |
| 378668 | Oct 1, 1990 | Oct 1, 1990 | Union Oil Company of California | Andrews | Antelope University #2 | 9,975 | 00336814 |
| 378101 | Sep 28, 1990 | Sep 28, 1990 | Union Oil Company of California | Scurry | Stratton, R. B. #8 | 3,286 | 41504219 |
| 378612 | Sep 27, 1990 | Sep 27, 1990 | Union Oil Company of California | Ector | Holt, O. B. "C" #19 | 5,400 | 13536343 |
| 378611 | Sep 27, 1990 | Sep 27, 1990 | Union Oil Company of California | Ector | Holt, O.B. "C" #18 | 5,400 | 13536342 |
| 378610 | Sep 27, 1990 | Sep 27, 1990 | Union Oil Company of California | Ector | Holt, O. B. "C" #12 | 5,400 | 13536341 |
| 378608 | Sep 27, 1990 | Sep 27, 1990 | Union Oil Company of California | Gaines | North Riley Unit #1303 | 7,350 | 16534231 |
| 378408 | Sep 25, 1990 | Sep 25, 1990 | Union Oil Company of California | Andrews | Parker, J. E. "H" #24 | 9,350 | 00334337 |
| 378406 | Sep 25, 1990 | Sep 25, 1990 | Union Oil Company of California | Andrews | Parker, J. E. "H" #20 | 9,450 | 00333785 |
| 378348 | Sep 25, 1990 | Sep 25, 1990 | Union Oil Company of California | Gaines | North Riley Unit #331 | 7,350 | 16534226 |
| 378472 | Sep 24, 1990 | Sep 24, 1990 | Union Oil Company of California | Ector | Moss Unit #9013 | 4,760 | 13536334 |
| 378470 | Sep 24, 1990 | Sep 24, 1990 | Union Oil Company of California | Ector | Moss Unit #9017 | 4,760 | 13536326 |
| 378237 | Sep 20, 1990 | Sep 20, 1990 | Union Oil Company of California | Gaines | North Riley Unit #1302 | 7,350 | 16534213 |
| 378180 | Sep 19, 1990 | Sep 19, 1990 | Union Oil Company of California | Ector | Holt, O. B. "D" #4 | 5,400 | 13536316 |
| 378179 | Sep 19, 1990 | Sep 19, 1990 | Union Oil Company of California | Ector | Holt, O. B. "C" #9 | 5,400 | 13536317 |
| 378178 | Sep 19, 1990 | Sep 19, 1990 | Union Oil Company of California | Ector | Holt, O. B. "C" #10 | 5,400 | 13536318 |
| 378177 | Sep 19, 1990 | Sep 19, 1990 | Union Oil Company of California | Ector | Holt, O. B. "C" #11 | 5,400 | 13536319 |
| 378176 | Sep 19, 1990 | Sep 19, 1990 | Union Oil Company of California | Ector | Holt, O. B. "C" #16 | 5,400 | 13536320 |
| 378175 | Sep 19, 1990 | Sep 19, 1990 | Union Oil Company of California | Ector | Holt, O. B. "C" #17 | 5,400 | 13536321 |
| 377792 | Sep 14, 1990 | Sep 14, 1990 | Union Oil Company of California | Gaines | North Riley Unit #1045 | 7,350 | 16534210 |
| 377791 | Sep 14, 1990 | Sep 14, 1990 | Union Oil Company of California | Gaines | North Riley Unit #1033 | 7,350 | 16534209 |
| 377789 | Sep 14, 1990 | Sep 14, 1990 | Union Oil Company of California | Gaines | North Riley Unit #1032 | 7,350 | 16534206 |
| 377937 | Sep 13, 1990 | Sep 13, 1990 | Union Oil Company of California | Ector | Holt, O. B. "C" #8 | 5,400 | 13536310 |
| 377790 | Sep 13, 1990 | Sep 13, 1990 | Union Oil Company of California | Gaines | North Riley Unit #351 | 7,350 | 16534208 |
| 377790Amendment | Sep 13, 1990 | Sep 13, 1990 | Union Oil Company of California | Gaines | North Riley Unit #351 | 7,350 | 16534208 |
| 377788 | Sep 13, 1990 | Sep 13, 1990 | Union Oil Company of California | Gaines | North Riley Unit #342 | 7,350 | 16534207 |
| 378239 | Sep 11, 1990 | Sep 11, 1990 | Union Oil Company of California | Gaines | North Riley Unit #1111 | 7,350 | 16534214 |
| 377397 | Sep 4, 1990 | Sep 4, 1990 | Union Oil Company of California | Borden | Reinecke Unit #240 | 7,000 | 03331473 |
| 377396 | Sep 4, 1990 | Sep 4, 1990 | Union Oil Company of California | Borden | Reinecke Unit #220 | 7,100 | 03331472 |
| 377394 | Sep 4, 1990 | Sep 4, 1990 | Union Oil Company of California | Borden | Reinecke Unit #201 | 7,000 | 03331471 |
| 377393 | Sep 4, 1990 | Sep 4, 1990 | Union Oil Company of California | Borden | Reinecke Unit #207 | 7,000 | 03331470 |
| 377391 | Sep 4, 1990 | Sep 4, 1990 | Union Oil Company of California | Borden | Reinecke Unit #200 | 7,000 | 03331469 |
| 377023 | Aug 30, 1990 | Aug 30, 1990 | Union Oil Company of California | Gaines | North Riley Unit #1044 | 7,350 | 16534199 |
| 376890 | Aug 21, 1990 | Aug 21, 1990 | Union Oil Company of California | Borden | Reinecke Unit #203 | 7,000 | 03331467 |
| 376658 | Aug 15, 1990 | Aug 15, 1990 | Union Oil Company of California | Borden | Reinecke Unit #254 | 7,000 | 03331466 |
| 376657 | Aug 15, 1990 | Aug 15, 1990 | Union Oil Company of California | Borden | Reinecke Unit #298 | 7,000 | 03331465 |
| 376656 | Aug 15, 1990 | Aug 15, 1990 | Union Oil Company of California | Gaines | North Riley Unit #1232 | 7,350 | 16534195 |
| 376562 | Aug 13, 1990 | Aug 13, 1990 | Union Oil Company of California | Ector | Moss Unit #6020 | 4,704 | 13536283 |
| 376063 | Jul 30, 1990 | Jul 30, 1990 | Union Oil Company of California | Gaines | North Riley Unit #235 | 7,350 | 16534192 |
| 370561 | Jul 30, 1990 | Jul 30, 1990 | Union Oil Company of California | Andrews | Parker, J. E. -H- #27 | 9,271 | 00335160 |
| 375489 | Jul 16, 1990 | Jul 16, 1990 | Union Oil Company of California | Borden | Reineke Unit #285 | 6,709 | 03331331 |
| 375342 | Jul 9, 1990 | Jul 9, 1990 | Union Oil Company of California | Andrews | Deford Unit #3 | 12,662 | 00303609 |
| 374648 | Jun 18, 1990 | Jun 18, 1990 | Union Oil Company of California | Andrews | Antelope University #1 | 9,900 | 00336772 |
| 374571Amendment | Jun 15, 1990 | Jun 15, 1990 | Union Oil Company of California | Henderson | Cresslenn Ranch #2 | 13,645 | 21330666 |
| 374467 | Jun 13, 1990 | Jun 13, 1990 | Union Oil Company of California | Ector | Moss Unit #1313 | 4,713 | 13536266 |
| 373571 | Jun 7, 1990 | Jun 7, 1990 | Union Oil Company of California | Gaines | North Riley Unit #259 | 7,350 | 16534171 |
| 374042 | Jun 1, 1990 | Jun 1, 1990 | Union Oil Company of California | Ector | Moss Unit #1309 | 4,705 | 13536257 |
| 374003 | Jun 1, 1990 | Jun 1, 1990 | Union Oil Company of California | Ector | Moss Unit #1307 | 4,702 | 13536254 |
| 374001 | Jun 1, 1990 | Jun 1, 1990 | Union Oil Company of California | Ector | Moss Unit #1308 | 4,710 | 13536255 |
| 373998 | Jun 1, 1990 | Jun 1, 1990 | Union Oil Company of California | Ector | Moss Unit #1311 | 4,709 | 13536256 |
| 373855 | May 25, 1990 | May 25, 1990 | Union Oil Company of California | Ector | Moss Unit #1421 | 4,695 | 13536252 |
| 373569 | May 23, 1990 | May 23, 1990 | Union Oil Company of California | Gaines | North Riley Unit #260 | 7,350 | 16534172 |
| 373679 | May 21, 1990 | May 21, 1990 | Union Oil Company of California | Andrews | Ford #23 | 9,900 | 00336762 |
| 373679Amendment | May 21, 1990 | May 21, 1990 | Union Oil Company of California | Andrews | Ford #23 | 9,808 | 00336762 |