| 346146 | May 5, 1988 | May 5, 1988 | Union Oil Company of California | Andrews | Kemp Deep #1 | 9,700 | 00336147 |
| 346145 | May 5, 1988 | May 5, 1988 | Union Oil Company of California | Crockett | Mary B #1 | 12,000 | 10535520 |
| 345947 | May 4, 1988 | May 4, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #4316D | 8,600 | 00336145 |
| 345946 | May 4, 1988 | May 4, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #4911D | 8,000 | 00336144 |
| 345944 | May 4, 1988 | May 4, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #4912D | 8,000 | 00336143 |
| 345860 | Apr 28, 1988 | Apr 28, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #5001D | 8,000 | 00336140 |
| 344824 | Apr 5, 1988 | Apr 5, 1988 | Union Oil Company of California | Andrews | University "12-E" #3 | 9,900 | 00306571 |
| 343833 | Mar 16, 1988 | Mar 16, 1988 | Union Oil Company of California | Andrews | Crosby State #3 | 9,700 | 00336091 |
| 343748 | Mar 10, 1988 | Mar 10, 1988 | Union Oil Company of California | Andrews | Ford #1 | 9,700 | 00336090 |
| 341580 | Feb 10, 1988 | Feb 10, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #150C | 7,250 | 00336037 |
| 341579 | Feb 10, 1988 | Feb 10, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #549C | 7,750 | 00336040 |
| 341578 | Feb 10, 1988 | Feb 10, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #748C | 7,750 | 00336038 |
| 341577 | Feb 10, 1988 | Feb 10, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #847C | 7,775 | 00336039 |
| 342421 | Feb 9, 1988 | Feb 9, 1988 | Union Oil Company of California | Hockley | Smyer, East (Clearfork) Unit #121 | 6,100 | 21935267 |
| 342420 | Feb 9, 1988 | Feb 9, 1988 | Union Oil Company of California | Hockley | Smyer, East (Clearfork) Unit #122 | 6,100 | 21935266 |
| 342112 | Feb 3, 1988 | Feb 3, 1988 | Union Oil Company of California | Hockley | Smyer, East (Clearfork) Unit #119 | 6,100 | 21935260 |
| 342111 | Feb 3, 1988 | Feb 3, 1988 | Union Oil Company of California | Hockley | Smyer, East (Clearfork) Unit #120 | 6,100 | 21935261 |
| 342109 | Feb 3, 1988 | Feb 3, 1988 | Union Oil Company of California | Andrews | Grafa Deep #3 | 9,700 | 00336046 |
| 341971 | Jan 27, 1988 | Jan 27, 1988 | Union Oil Company of California | Hockley | Smyer, East (Clearfork) Unit #118 | 6,100 | 21935254 |
| 341488 | Jan 19, 1988 | Jan 19, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #3902D | 7,800 | 00336031 |
| 341487 | Jan 19, 1988 | Jan 19, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #3903D | 7,800 | 00336021 |
| 341486 | Jan 19, 1988 | Jan 19, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #4036D | 8,000 | 00336030 |
| 341485 | Jan 19, 1988 | Jan 19, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #4037D | 7,800 | 00336029 |
| 341484 | Jan 19, 1988 | Jan 19, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #4206D | 8,100 | 00336028 |
| 341483 | Jan 19, 1988 | Jan 19, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #4207D | 7,900 | 00336027 |
| 341482 | Jan 19, 1988 | Jan 19, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #4609D | 8,600 | 00336026 |
| 341481 | Jan 19, 1988 | Jan 19, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #4610D | 8,600 | 00336025 |
| 341480 | Jan 19, 1988 | Jan 19, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #5002D | 8,100 | 00336024 |
| 341479 | Jan 19, 1988 | Jan 19, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #5003D | 8,000 | 00336023 |
| 341478 | Jan 19, 1988 | Jan 19, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #5101D | 8,000 | 00336022 |
| 354971 | Jan 11, 1988 | Jan 11, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #8030 C | 7,800 | 00336303 |
| 341158 | Jan 7, 1988 | Jan 7, 1988 | Union Oil Company of California | Andrews | Dollarhide Unit #5102D | 8,000 | 00336008 |
| 341157 | Jan 7, 1988 | Jan 7, 1988 | Union Oil Company of California | Andrews | Crosby State #2 | 9,700 | 00336007 |
| 354949 | Jan 6, 1988 | Jan 6, 1988 | Union Oil Company of California | Andrews | Ford #19 | 9,800 | 00336300 |
| 340766 | Dec 29, 1987 | Dec 29, 1987 | Union Oil Company of California | Howard | Goodman #1 | 9,500 | 22734239 |
| 340309 | Dec 21, 1987 | Dec 21, 1987 | Union Oil Company of California | Andrews | Dollarhide Unit #1903C | 7,200 | 00335987 |
| 340308 | Dec 21, 1987 | Dec 21, 1987 | Union Oil Company of California | Andrews | Dollarhide Unit #765C | 7,750 | 00335986 |
| 340310 | Dec 18, 1987 | Dec 18, 1987 | Union Oil Company of California | Andrews | Dollarhide Unit #2044C | 7,200 | 00335988 |
| 340220 | Dec 14, 1987 | Dec 14, 1987 | Union Oil Company of California | Crockett | Jones, E. K. #1 | 12,000 | 10535478 |
| 340219 | Dec 14, 1987 | Dec 14, 1987 | Union Oil Company of California | Crockett | Marley "A" #1 | 12,000 | 10535479 |
| 340219Amendment | Dec 14, 1987 | Dec 14, 1987 | Union Oil Company of California | Crockett | Marley "A" #1 | 12,000 | 10535479 |
| 340106 | Dec 14, 1987 | Dec 14, 1987 | Union Oil Company of California | Borden | Reinecke Unit #287 | 7,100 | 03331330 |
| 340105 | Dec 14, 1987 | Dec 14, 1987 | Union Oil Company of California | Borden | Reinecke Unit #285 | 7,100 | 03331331 |
| 340104 | Dec 14, 1987 | Dec 14, 1987 | Union Oil Company of California | Borden | Reinecke Unit #278 | 7,100 | 03331332 |
| 340103 | Dec 14, 1987 | Dec 14, 1987 | Union Oil Company of California | Borden | Reinecke Unit #275 | 7,100 | 03331333 |
| 340145 | Dec 11, 1987 | Dec 11, 1987 | Union Oil Company of California | Andrews | Dollarhide Unit #3213C | 7,200 | 00335985 |
| 340144 | Dec 11, 1987 | Dec 11, 1987 | Union Oil Company of California | Andrews | Dollarhide Unit #2543C | 7,700 | 00335984 |
| 339409 | Nov 25, 1987 | Nov 25, 1987 | Union Oil Company of California | Borden | Reinecke Unit #231 | 7,100 | 03331328 |
| 339408 | Nov 25, 1987 | Nov 25, 1987 | Union Oil Company of California | Borden | Reinecke Unit #252 | 7,100 | 03331327 |
| 339309 | Nov 23, 1987 | Nov 23, 1987 | Union Oil Company of California | Dawson | Henderson #1 | 13,000 | 11532464 |
| 339308 | Nov 23, 1987 | Nov 23, 1987 | Union Oil Company of California | Howard | Grant #1 | 9,500 | 22734234 |
| 338434 | Nov 6, 1987 | Nov 6, 1987 | Union Oil Company of California | Sutton | Phillips, H. M. #1 | 10,500 | 43533398 |
| 337883 | Oct 23, 1987 | Oct 23, 1987 | Union Oil Company of California | Andrews | Parker, J. E. "AB" #4 | 9,304 | 00335773 |
| 337882 | Oct 23, 1987 | Oct 23, 1987 | Union Oil Company of California | Andrews | Parker, J. E. "AB" #3 | 9,307 | 00335763 |
| 336280 | Sep 21, 1987 | Sep 21, 1987 | Union Oil Company of California | Crockett | Barnes, E.M. #1 | 12,000 | 10535438 |
| 336279 | Sep 21, 1987 | Sep 21, 1987 | Union Oil Company of California | Howard | Long #1 | 9,450 | 22734196 |
| 336048 | Sep 16, 1987 | Sep 16, 1987 | Union Oil Company of California | Gaines | North Riley Unit #212 | 7,550 | 16533754 |
| 336047 | Sep 16, 1987 | Sep 16, 1987 | Union Oil Company of California | Gaines | North Riley Unit #142 | 7,450 | 16533753 |
| 335065 | Sep 10, 1987 | Sep 10, 1987 | Union Oil Company of California | Ector | Moss Unit #210 | 4,900 | 13535625 |
| 335068 | Sep 9, 1987 | Sep 9, 1987 | Union Oil Company of California | Ector | Moss Unit #1614 | 4,900 | 13535628 |
| 335067 | Sep 9, 1987 | Sep 9, 1987 | Union Oil Company of California | Ector | Moss Unit #618 | 4,900 | 13535623 |
| 335066 | Sep 9, 1987 | Sep 9, 1987 | Union Oil Company of California | Ector | Moss Unit #209 | 4,900 | 13535624 |
| 335063 | Sep 9, 1987 | Sep 9, 1987 | Union Oil Company of California | Ector | Moss Unit #910 | 4,900 | 13535627 |
| 335146 | Aug 31, 1987 | Aug 31, 1987 | Union Oil Company of California | Andrews | Parker, J. E. "P" #2 | 9,700 | 00335912 |
| 335145 | Aug 31, 1987 | Aug 31, 1987 | Union Oil Company of California | Andrews | Parker, Bessie O. #4 | 9,800 | 00335913 |
| 335144Amendment | Aug 31, 1987 | Aug 31, 1987 | Union Oil Company of California | Andrews | Parker, Bessie O. #3 | 9,740 | 00335914 |
| 335143 | Aug 31, 1987 | Aug 31, 1987 | Union Oil Company of California | Andrews | Parker, J. E. "AC" #1 | 9,800 | 00335915 |
| 335064 | Aug 31, 1987 | Aug 31, 1987 | Union Oil Company of California | Ector | Moss Unit #812 | 4,900 | 13535626 |
| 333589 | Aug 28, 1987 | Aug 28, 1987 | Union Oil Company of California | Garza | Stoker, K et UX "C" #17 | 5,400 | 16932790 |
| 334672 | Aug 19, 1987 | Aug 19, 1987 | Union Oil Company of California | Andrews | Ford "C" #2 | 9,700 | 00335907 |
| 334447 | Aug 18, 1987 | Aug 18, 1987 | Union Oil Company of California | Crockett | University "DD" #7 | 2,770 | 10535425 |
| 334446 | Aug 18, 1987 | Aug 18, 1987 | Union Oil Company of California | Crockett | University "DD" #8 | 2,770 | 10535426 |
| 334300 | Aug 12, 1987 | Aug 12, 1987 | Union Oil Company of California | Andrews | Dollarhide Unit #3540C | 7,735 | 00335880 |
| 334298 | Aug 12, 1987 | Aug 12, 1987 | Union Oil Company of California | Andrews | Dollarhide Unit #3441C | 7,785 | 00335886 |
| 334296 | Aug 12, 1987 | Aug 12, 1987 | Union Oil Company of California | Andrews | Dollarhide Unit #3239C | 7,700 | 00335885 |
| 334374 | Aug 11, 1987 | Aug 11, 1987 | Union Oil Company of California | Andrews | Parker, J. E. "B" #3 | 9,740 | 00307744 |
| 334374Amendment | Aug 11, 1987 | Aug 11, 1987 | Union Oil Company of California | Andrews | Parker, J. E. "B" #3 | 4,680 | 00307744 |
| 334202 | Aug 7, 1987 | Aug 7, 1987 | Union Oil Company of California | Andrews | Dollarhide Unit #3542C | 7,650 | 00335878 |
| 333963 | Aug 3, 1987 | Aug 3, 1987 | Union Oil Company of California | Howard | Newton #1 | 9,450 | 22734182 |
| 333101 | Jul 21, 1987 | Jul 21, 1987 | Union Oil Company of California | Andrews | Iverson Deep #2 | 9,700 | 00335855 |
| 332886 | Jul 14, 1987 | Jul 14, 1987 | Union Oil Company of California | Andrews | Grafa Deep #2 | 9,700 | 00335848 |
| 332885 | Jul 14, 1987 | Jul 14, 1987 | Union Oil Company of California | Andrews | Argo State #1 | 9,700 | 00335849 |
| 332590 | Jul 7, 1987 | Jul 7, 1987 | Union Oil Company of California | Andrews | Parker, J. E. "A" #4 | 9,155 | 00307750 |
| 332049 | Jun 25, 1987 | Jun 25, 1987 | Union Oil Company of California | Gaines | North Riley Unit #273 | 7,460 | 16533652 |
| 332048 | Jun 25, 1987 | Jun 25, 1987 | Union Oil Company of California | Gaines | North Riley Unit #337 | 7,460 | 16533653 |
| 332041 | Jun 25, 1987 | Jun 25, 1987 | Union Oil Company of California | Gaines | North Riley Unit #342 | 7,460 | 16534207 |
| 331910 | Jun 24, 1987 | Jun 24, 1987 | Union Oil Company of California | Gaines | North Riley Unit #335 | 7,460 | 16533651 |
| 331909 | Jun 24, 1987 | Jun 24, 1987 | Union Oil Company of California | Gaines | North Riley Unit #325 | 7,460 | 16533650 |
| 330487 | Jun 19, 1987 | Jun 19, 1987 | Union Oil Company of California | Andrews | University "C" #1 | 8,100 | 00303227 |
| 331546 | Jun 17, 1987 | Jun 17, 1987 | Union Oil Company of California | Borden | Reinecke Unit #265 | 6,857 | 03331289 |
| 331479 | Jun 15, 1987 | Jun 15, 1987 | Union Oil Company of California | Andrews | Dollarhide Unit #8061C | 7,160 | 00335830 |
| 331423 | Jun 12, 1987 | Jun 12, 1987 | Union Oil Company of California | Andrews | Dollarhide Unit #11112C | 7,160 | 00335829 |
| 331517 | Jun 11, 1987 | Jun 11, 1987 | Union Oil Company of California | Andrews | Crosby State #1 | 9,525 | 00335831 |
| 331374 | Jun 11, 1987 | Jun 11, 1987 | Union Oil Company of California | Gaines | North Riley Unit #279 | 7,390 | 16533647 |
| 331237 | Jun 9, 1987 | Jun 9, 1987 | Union Oil Company of California | Gaines | North Riley Unit #299 | 7,385 | 16533644 |
| 331236 | Jun 9, 1987 | Jun 9, 1987 | Union Oil Company of California | Gaines | North Riley Unit #314 | 7,380 | 16533643 |
| 331208 | Jun 4, 1987 | Jun 4, 1987 | Union Oil Company of California | Andrews | Union #1 Amoco Ford "C" #1 | 9,520 | 00335620 |
| 331088 | Jun 4, 1987 | Jun 4, 1987 | Union Oil Company of California | Crockett | West, Wayne Ranch "B" #4 | 11,932 | 10535377 |
| 331069 | Jun 2, 1987 | Jun 2, 1987 | Union Oil Company of California | Andrews | Dollarhide Unit #8081C | 7,660 | 00335819 |
| 330601 | May 21, 1987 | May 21, 1987 | Union Oil Company of California | Andrews | Dollarhide Unit #5306D | 8,240 | 00335816 |