| 356664 | Mar 6, 1989 | Mar 6, 1989 | Union Oil Company of California | Andrews | Dollarhide Unit #1214C | 7,730 | 00336338 |
| 356633 | Mar 6, 1989 | Mar 6, 1989 | Union Oil Company of California | Andrews | Dollarhide Unit #1334C | 7,630 | 00336339 |
| 356632 | Mar 6, 1989 | Mar 6, 1989 | Union Oil Company of California | Andrews | Dollarhide Unit #8076C | 7,650 | 00336334 |
| 356631 | Mar 6, 1989 | Mar 6, 1989 | Union Oil Company of California | Andrews | Dollarhide Unit #706D | 7,800 | 00336335 |
| 356630 | Mar 6, 1989 | Mar 6, 1989 | Union Oil Company of California | Andrews | Dollarhide Unit #704D | 7,850 | 00336336 |
| 356629 | Mar 6, 1989 | Mar 6, 1989 | Union Oil Company of California | Andrews | Dollarhide Unit #703D | 7,800 | 00336337 |
| 356419 | Feb 27, 1989 | Feb 27, 1989 | Union Oil Company of California | Andrews | Dollarhide Unit #705 D | 7,880 | 00336331 |
| 356418 | Feb 27, 1989 | Feb 27, 1989 | Union Oil Company of California | Andrews | Dollarhide Unit #801 D | 7,950 | 00336332 |
| 355878 | Feb 17, 1989 | Feb 17, 1989 | Union Oil Company of California | Sterling | Foster, W. L. Jr. "B" #18 | 2,450 | 43131742 |
| 355831 | Feb 14, 1989 | Feb 14, 1989 | Union Oil Company of California | Ochiltree | Farnsworth Unit #805 | 7,770 | 35730116 |
| 355963 | Feb 13, 1989 | Feb 13, 1989 | Union Oil Company of California | Andrews | Parker, J. E. "P" #3 | 9,875 | 00336314 |
| 355860 | Feb 9, 1989 | Feb 9, 1989 | Union Oil Company of California | Andrews | University "12-E" #5 | 10,275 | 00306596 |
| 355755 | Feb 9, 1989 | Feb 9, 1989 | Union Oil Company of California | Ector | Moss Unit #1619 | 5,010 | 13536030 |
| 355753 | Feb 9, 1989 | Feb 9, 1989 | Union Oil Company of California | Ector | Moss Unit #1418 | 5,050 | 13536028 |
| 355752 | Feb 9, 1989 | Feb 9, 1989 | Union Oil Company of California | Ector | Moss Unit #1419 | 5,000 | 13536027 |
| 355751 | Feb 9, 1989 | Feb 9, 1989 | Union Oil Company of California | Ector | Moss Unit #1420 | 5,050 | 13536034 |
| 355871 | Feb 8, 1989 | Feb 8, 1989 | Union Oil Company of California | Howard | Hamlin #1 | 9,200 | 22734414 |
| 355758 | Feb 8, 1989 | Feb 8, 1989 | Union Oil Company of California | Ector | Moss Unit #2408 | 5,100 | 13536033 |
| 355757 | Feb 8, 1989 | Feb 8, 1989 | Union Oil Company of California | Ector | Moss Unit #2407 | 5,100 | 13536032 |
| 355756 | Feb 8, 1989 | Feb 8, 1989 | Union Oil Company of California | Ector | Moss Unit #2406 | 5,100 | 13536031 |
| 355754 | Feb 8, 1989 | Feb 8, 1989 | Union Oil Company of California | Ector | Moss Unit #1417 | 5,000 | 13536029 |
| 355724 | Feb 2, 1989 | Feb 2, 1989 | Union Oil Company of California | Andrews | Parker, J. E. "AA" #3 | 9,801 | 00336160 |
| 355713 | Jan 31, 1989 | Jan 31, 1989 | Union Oil Company of California | Pecos | Schneemann State #1 | 6,000 | 37136134 |
| 355689 | Jan 30, 1989 | Jan 30, 1989 | Union Oil Company of California | Borden | Reinecke Unit #224R | 7,000 | 03331384 |
| 355620 | Jan 27, 1989 | Jan 27, 1989 | Union Oil Company of California | Ector | Moss Unit #1416 | 4,950 | 13536026 |
| 355619 | Jan 27, 1989 | Jan 27, 1989 | Union Oil Company of California | Ector | Moss Unit #1415 | 4,950 | 13536025 |
| 355478 | Jan 24, 1989 | Jan 24, 1989 | Union Oil Company of California | Ector | Moss Unit #9014 | 4,760 | 13536022 |
| 355185 | Jan 17, 1989 | Jan 17, 1989 | Union Oil Company of California | Andrews | Parker, J. E. "B" #12 | 9,720 | 00336308 |
| 355185Amendment | Jan 17, 1989 | Jan 17, 1989 | Union Oil Company of California | Andrews | Parker, J. E. "B" #12 | 9,800 | 00336308 |
| 355082 | Jan 12, 1989 | Jan 12, 1989 | Union Oil Company of California | Borden | Reinecke Unit #243 | 7,000 | 03331381 |
| 355081 | Jan 12, 1989 | Jan 12, 1989 | Union Oil Company of California | Borden | Reinecke Unit #255 | 7,000 | 03331382 |
| 355080 | Jan 12, 1989 | Jan 12, 1989 | Union Oil Company of California | Borden | Reinecke Unit #234 | 7,000 | 03331380 |
| 355079 | Jan 12, 1989 | Jan 12, 1989 | Union Oil Company of California | Borden | Reinecke Unit #224 | 7,000 | 03331379 |
| 355078 | Jan 12, 1989 | Jan 12, 1989 | Union Oil Company of California | Borden | Reinecke Unit #296 | 7,000 | 03331383 |
| 354968 | Jan 12, 1989 | Jan 12, 1989 | Union Oil Company of California | Andrews | Dollarhide Unit #1060C | 7,800 | 00336302 |
| 354967 | Jan 12, 1989 | Jan 12, 1989 | Union Oil Company of California | Andrews | Dollarhide Unit #3451C | 7,800 | 00336301 |
| 354962 | Jan 12, 1989 | Jan 12, 1989 | Union Oil Company of California | Andrews | Dollarhide Unit #3352C | 7,800 | 00336304 |
| 354970 | Jan 11, 1989 | Jan 11, 1989 | Union Oil Company of California | Andrews | Dollarhide Unit #1059D | 8,300 | 00336305 |
| 354965 | Jan 11, 1989 | Jan 11, 1989 | Union Oil Company of California | Andrews | Dollarhide Unit #8029D | 8,200 | 00336306 |
| 354964 | Jan 11, 1989 | Jan 11, 1989 | Union Oil Company of California | Andrews | Dollarhide Unit #902D | 8,300 | 00336307 |
| 354885 | Jan 4, 1989 | Jan 4, 1989 | Union Oil Company of California | Andrews | Dollarhide Unit #3253C | 7,800 | 00336299 |
| 354742 | Dec 29, 1988 | Dec 29, 1988 | Union Oil Company of California | Ector | Moss Unit #8013 | 4,840 | 13536016 |
| 354741 | Dec 29, 1988 | Dec 29, 1988 | Union Oil Company of California | Ector | Moss Unit #8014 | 4,820 | 13536017 |
| 354740 | Dec 29, 1988 | Dec 29, 1988 | Union Oil Company of California | Ector | Moss Unit #9011 | 4,785 | 13536018 |
| 354739 | Dec 29, 1988 | Dec 29, 1988 | Union Oil Company of California | Ector | Moss Unit #9012 | 4,800 | 13536019 |
| 354612 | Dec 28, 1988 | Dec 28, 1988 | Union Oil Company of California | Andrews | Parker, J. E. "F" #3 | 9,195 | 00307746 |
| 354582 | Dec 22, 1988 | Dec 22, 1988 | Union Oil Company of California | Ector | Moss Unit #506 | 4,800 | 13536014 |
| 354508 | Dec 22, 1988 | Dec 22, 1988 | Union Oil Company of California | Sterling | Foster, W. L. Jr. "B" #19U | 3,200 | 43131744 |
| 354536 | Dec 21, 1988 | Dec 21, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #2515 C | 8,428 | 00304837 |
| 354139 | Dec 9, 1988 | Dec 9, 1988 | Union Oil Company of California | Val Verde | Hodge #1 | 13,150 | 46530473 |
| 353979 | Dec 5, 1988 | Dec 5, 1988 | Union Oil Company of California | Garza | Stoker, K. et UX "C" #20 | 5,400 | 16932892 |
| 353979Amendment | Dec 5, 1988 | Dec 5, 1988 | Union Oil Company of California | Garza | Stoker, K. et UX "C" #20 | 5,400 | 16932892 |
| 353582 | Nov 22, 1988 | Nov 22, 1988 | Union Oil Company of California | Andrews | Logsdon, C. W. "B" #15 | 5,000 | 00307837 |
| 353364 | Nov 16, 1988 | Nov 16, 1988 | Union Oil Company of California | Montague | Rowland, J. W. "B" #14 | 1,200 | 33732780 |
| 353290 | Nov 15, 1988 | Nov 15, 1988 | Union Oil Company of California | Pecos | Neal, Roxie #1 | 22,681 | 37110686 |
| 352390 | Oct 17, 1988 | Oct 17, 1988 | Union Oil Company of California | Andrews | Parker, J. E. -H- #19 | 9,410 | 00333499 |
| 352389 | Oct 17, 1988 | Oct 17, 1988 | Union Oil Company of California | Andrews | Parker, J. E. "AB" #2 | 9,702 | 00335289 |
| 352082 | Oct 12, 1988 | Oct 12, 1988 | Union Oil Company of California | Gaines | North Riley Unit #145 | 7,400 | 16534007 |
| 352081 | Oct 12, 1988 | Oct 12, 1988 | Union Oil Company of California | Gaines | North Riley Unit #148R | 7,400 | 16534008 |
| 352080 | Oct 12, 1988 | Oct 12, 1988 | Union Oil Company of California | Gaines | North Riley Unit #146 | 7,400 | 16534006 |
| 352005 | Oct 6, 1988 | Oct 6, 1988 | Union Oil Company of California | Gaines | North Riley Unit #130 | 7,400 | 16534005 |
| 351463 | Sep 21, 1988 | Sep 21, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #2516E | 9,900 | 00336245 |
| 350282 | Sep 20, 1988 | Sep 20, 1988 | Union Oil Company of California | Andrews | University 12-E #1 | 7,375 | 00306535 |
| 351264 | Sep 16, 1988 | Sep 16, 1988 | Union Oil Company of California | Andrews | Parker, J. E. "B" #3 | 9,740 | 00307744 |
| 351261 | Sep 16, 1988 | Sep 16, 1988 | Union Oil Company of California | Andrews | Clark, Frank #7 | 12,440 | 00305585 |
| 350886 | Sep 8, 1988 | Sep 8, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #4318D | 8,200 | 00336236 |
| 350849 | Sep 2, 1988 | Sep 2, 1988 | Union Oil Company of California | Andrews | University 12-F #1 | 10,275 | 00306536 |
| 350764 | Sep 2, 1988 | Sep 2, 1988 | Union Oil Company of California | Borden | Reinecke Unit #264 | 7,100 | 03331366 |
| 350646 | Aug 30, 1988 | Aug 30, 1988 | Union Oil Company of California | Borden | Reinecke Unit #246 | 7,100 | 03331365 |
| 350646Amendment | Aug 30, 1988 | Aug 30, 1988 | Union Oil Company of California | Borden | Reinecke Unit #246 | 7,100 | 03331365 |
| 350602 | Aug 26, 1988 | Aug 26, 1988 | Union Oil Company of California | Borden | Reinecke Unit #221 | 7,100 | 03331363 |
| 350470 | Aug 24, 1988 | Aug 24, 1988 | Union Oil Company of California | Borden | Reinecke Unit #253 | 7,100 | 03331360 |
| 350468 | Aug 24, 1988 | Aug 24, 1988 | Union Oil Company of California | Borden | Reinecke Unit #233 | 7,100 | 03331361 |
| 350465 | Aug 24, 1988 | Aug 24, 1988 | Union Oil Company of California | Andrews | Ford #18 | 9,900 | 00336234 |
| 350244 | Aug 18, 1988 | Aug 18, 1988 | Union Oil Company of California | Garza | Stoker "K" et UX "C" #19 | 3,250 | 16932877 |
| 350243 | Aug 18, 1988 | Aug 18, 1988 | Union Oil Company of California | Garza | Stoker "K" et UX "C" #18 | 3,150 | 16932876 |
| 350209 | Aug 18, 1988 | Aug 18, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #5055C | 7,800 | 00336225 |
| 350263 | Aug 17, 1988 | Aug 17, 1988 | Union Oil Company of California | Andrews | University "12-E" #4 | 7,255 | 00306591 |
| 349812 | Aug 8, 1988 | Aug 8, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #1100C | 7,800 | 00336222 |
| 349811 | Aug 8, 1988 | Aug 8, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #3246C | 7,770 | 00336220 |
| 349810 | Aug 8, 1988 | Aug 8, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #1584C | 7,770 | 00336221 |
| 349615 | Aug 3, 1988 | Aug 3, 1988 | Union Oil Company of California | Ector | Moss Unit #1508 | 4,800 | 13535946 |
| 349614 | Aug 3, 1988 | Aug 3, 1988 | Union Oil Company of California | Ector | Moss Unit #1507 | 4,800 | 13535945 |
| 349613 | Aug 3, 1988 | Aug 3, 1988 | Union Oil Company of California | Ector | Moss Unit #1509 | 4,850 | 13535944 |
| 349612 | Aug 3, 1988 | Aug 3, 1988 | Union Oil Company of California | Andrews | Parker, J. E. "P" - Amoco #18 | 9,820 | 00336219 |
| 349426 | Jul 26, 1988 | Jul 26, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #2345C | 7,660 | 00336213 |
| 349198 | Jul 21, 1988 | Jul 21, 1988 | Union Oil Company of California | Andrews | Parker, J. E. "A" #6 | 9,820 | 00336212 |
| 348315 | Jun 29, 1988 | Jun 29, 1988 | Union Oil Company of California | Andrews | Ford #2 | 9,800 | 00336196 |
| 348314 | Jun 29, 1988 | Jun 29, 1988 | Union Oil Company of California | Ector | Moss Unit #1306 | 4,800 | 13535903 |
| 348284 | Jun 27, 1988 | Jun 27, 1988 | Union Oil Company of California | Crockett | University "DD" #9 | 2,800 | 10535531 |
| 348283 | Jun 27, 1988 | Jun 27, 1988 | Union Oil Company of California | Crockett | University "DD" #10 | 2,800 | 10535533 |
| 348282 | Jun 27, 1988 | Jun 27, 1988 | Union Oil Company of California | Crockett | University "DD" #11 | 2,800 | 10535532 |
| 347405 | Jun 7, 1988 | Jun 7, 1988 | Union Oil Company of California | Andrews | Parker, J. E. "AD" #1 | 9,800 | 00336170 |
| 347404 | Jun 7, 1988 | Jun 7, 1988 | Union Oil Company of California | Andrews | Parker, J. E. "AA" #2 | 9,800 | 00336169 |
| 347037 | May 27, 1988 | May 27, 1988 | Union Oil Company of California | Andrews | Kemp Deep #2 | 9,700 | 00336168 |
| 346775 | May 19, 1988 | May 19, 1988 | Union Oil Company of California | Andrews | Parker, J. E. "AB" #1 | 8,700 | 00335648 |
| 346774 | May 19, 1988 | May 19, 1988 | Union Oil Company of California | Andrews | Logsdon, C. W. "B" #11 | 5,000 | 00307833 |
| 346360 | May 10, 1988 | May 10, 1988 | Union Oil Company of California | Andrews | Parker "AE" #1 | 9,800 | 00336160 |
| 346360Amendment | May 10, 1988 | May 10, 1988 | Union Oil Company of California | Andrews | Parker "AA" #3 | 9,800 | 00336160 |
| 346361 | May 6, 1988 | May 6, 1988 | Union Oil Company of California | Andrews | Parker, Bessie O. "11" #2 | 9,800 | 00336159 |