| Willamar West Unit #229WI42-489-30891 | Citation Oil & Gas Corp. only | WillacyWillamar West | PluggedOil | 8,150 | May 9, 2014 | 2 | Apr 2026 |
| Sauz Ranch Mulatos Pasture #18542-489-30846 | Shoco Production LLC only | WillacyWillamar West (Miocene 5100) | ActiveInjection | 8,100 | Sep 18, 2013 | 4 | May 2017 |
| Sauz Ranch Mulatos Pasture #20242-489-30878 | Chestnut Explor. and Prod. Inc. only | WillacyWillamar West (Miocene 6700) | PluggedOil | 9,070 | Feb 15, 2013 | 3 | May 2017 |
| Sauz Ranch Mulatos Pasture #20742-489-30876 | Chestnut Explor. and Prod. Inc. only | WillacyWillamar West (Miocene 6700) | PluggedOil | 9,060 | Feb 13, 2013 | 4 | May 2017 |
| Sauz Ranch Mulatos Pasture #20642-489-30875 | Chestnut Explor. and Prod. Inc. only | WillacyWillamar West | PluggedOil | 9,070 | May 18, 2012 | 2 | May 2017 |
| Sauz Ranch Mulatos Pasture #20142-489-30879 | Chestnut Explor. and Prod. Inc. only | WillacyWillamar West (Miocene 5100) | PluggedOil | 9,075 | May 18, 2012 | 5 | May 2017 |
| Willamar West Miocene Unit #m 4442-489-30126 | Citation Oil & Gas Corp. only | WillacyWillamar West (Miocene 5300) | ActiveOil | 7,980 | Apr 26, 2012 | 1 | Apr 2026 |
| Willamar West Miocene Unit #m 3842-489-30926 | Citation Oil & Gas Corp. only | WillacyWillamar West (Miocene 5300) | Shut inOil | 8,050 | Feb 28, 2005 | 2 | Apr 2026 |
| Willamar West Unit #20042-489-30805 | Citation Oil & Gas Corp. only | WillacyWillamar West | Shut inOil | 8,100 | Jun 30, 2004 | 2 | Apr 2026 |
| Lozano Antonio #1042-489-30886 | Citation Oil & Gas Corp. only | WillacyWillamar West (Miocene 4400) | Temporarily abandonedGas | 8,114 | Jun 30, 2004 | 4 | Apr 2026 |
| Garcia Teodoro #742-489-30800 | Citation Oil & Gas Corp. only | WillacyWildcat | PluggedOil | 8,150 | Dec 11, 2003 | 2 | Apr 2026 |
| Cavazos J C #642-489-30815 | Citation Oil & Gas Corp. only | WillacyWillamar | PluggedOil | 8,150 | Dec 11, 2003 | 3 | Apr 2026 |
| Bucy #842-489-30794 | Citation Oil & Gas Corp. only | WillacyWillamar | Shut inOil | 8,100 | Dec 4, 2003 | 3 | Apr 2026 |
| Willamar West Unit #166WI42-489-30810 | Citation Oil & Gas Corp. only | WillacyWillamar West | PluggedOil | 8,053 | Dec 4, 2003 | 2 | Apr 2026 |
| Willamar West Unit #190WI42-489-30811 | Citation Oil & Gas Corp. only | WillacyWillamar West | Shut inOil | 8,100 | Apr 2, 2003 | 2 | Apr 2026 |
| Willamar West Unit #3442-489-00317 | Citation Oil & Gas Corp. only | WillacyWillamar West | Shut inOil | 8,042 | Feb 6, 2003 | 1 | Apr 2026 |
| Raymond Lenora C. #442-489-30884 | Citation Oil & Gas Corp. only | WillacyWillamar West (Miocene 4500) | Temporarily abandonedGas | 8,050 | Jan 23, 2003 | 4 | Apr 2026 |
| Willamar West Unit #142-489-00283 | Citation Oil & Gas Corp. only | WillacyWillamar West (Miocene 6700) | PluggedOil | 7,764 | Jul 3, 2002 | 2 | Apr 2026 |
| Willamar West Miocene Unit #m 2842-489-30756 | Citation Oil & Gas Corp. only | WillacyWillamar West (Miocene 4700) | Shut inOil | 8,100 | Jun 11, 2002 | 3 | Apr 2026 |
| Bucy G. W. #342-489-00365 | Citation Oil & Gas Corp. only | WillacyWillamar West (SM-4100) | PluggedGas | 7,967 | Feb 2, 1999 | 1 | Apr 2026 |
| Willamar West Unit #194WI42-489-30885 | Citation Oil & Gas Corp. only | WillacyWillamar West | PluggedOil | 8,100 | Dec 22, 1998 | 3 | Apr 2026 |
| Sauz Ranch Mulatos Pasture #1042-489-00205 | Chestnut Explor. and Prod. Inc. only | WillacyWillamar West | PluggedOil | 7,951 | Jul 3, 1998 | 3 | May 2017 |
| Willamar West Unit #163WI42-489-30807 | Citation Oil & Gas Corp. only | WillacyWillamar West | PluggedOil | 8,100 | Jun 24, 1998 | 2 | Apr 2026 |
| Cavazos Nicolas #242-489-00428 | Citation Oil & Gas Corp. only | WillacyWillamar (5150) | PluggedGas | 8,059 | May 23, 1997 | 2 | Apr 2026 |
| Sauz Ranch Mulatos Pasture #17642-489-30747 | Shoco Production LLC only | WillacyWillamar West | ActiveOil | 8,050 | Oct 31, 1996 | 2 | Mar 2026 |
| Willamar West Miocene Unit #3742-489-30763 | Citation Oil & Gas Corp. only | WillacyWillamar West (Miocene 6300) | Temporarily abandonedGas | 8,050 | Feb 8, 1996 | 2 | Apr 2026 |
| Willamar West Unit #17042-489-30771 | Citation Oil & Gas Corp. only | WillacyWillamar West | PluggedOil | 8,102 | Jan 2, 1996 | 2 | Apr 2026 |
| Willamar West Miocene Unit #3642-489-00320 | Citation Oil & Gas Corp. only | WillacyWillamar West (Miocene 6300) | PluggedOil | 8,070 | Feb 7, 1995 | 1 | Apr 2026 |
| Willamar West Unit #148WI42-489-30722 | Citation Oil & Gas Corp. only | WillacyWillamar West | Shut inOil | 8,150 | Jan 17, 1995 | 3 | Apr 2026 |
| Williamar West Miocene Unit #3442-489-30128 | Citation Oil & Gas Corp. only | WillacyWillamar West (Miocene 5850) | PluggedOil | 7,970 | Dec 7, 1994 | 1 | Apr 2026 |
| Willamar West Unit #12342-489-00393 | Citation Oil & Gas Corp. only | WillacyWillamar West | PluggedOil | 8,117 | Oct 3, 1994 | 1 | Apr 2026 |
| Willamar West Unit #12442-489-00394 | Citation Oil & Gas Corp. only | WillacyWillamar West | Shut inOil | 7,762 | Jul 12, 1994 | 1 | Apr 2026 |
| Willamar West Miocene Unit #3342-489-30726 | Citation Oil & Gas Corp. only | WillacyWillamar West (Miocene 4500) | PluggedGas | 8,150 | Nov 16, 1993 | 2 | Apr 2026 |
| Willamar West Miocene Unit #m 3242-489-00255 | Citation Oil & Gas Corp. only | WillacyWillamar West (Miocene 5800) | PluggedGas | 8,015 | Dec 8, 1992 | 1 | Apr 2026 |
| Willamar West Miocene Unit #3142-489-00291 | Citation Oil & Gas Corp. only | WillacyWillamar West (Miocene 5100) | PluggedOil | 8,081 | Dec 7, 1992 | 1 | Apr 2026 |
| Champion Heirs #8342-489-00368 | Citation Oil & Gas Corp. only | WillacyWillamar West (1500) | PluggedGas | 7,998 | Oct 19, 1992 | 3 | Apr 2026 |
| Willamar West Unit #211WI42-489-30779 | Citation Oil & Gas Corp. only | WillacyWillamar West | PluggedOil | 8,200 | Jul 30, 1992 | 2 | Apr 2026 |
| Willamar West Miocene Unit #m 2942-489-30027 | Citation Oil & Gas Corp. only | WillacyWillamar West (Miocene 6300) | Temporarily abandonedGas | 7,960 | Dec 19, 1991 | 1 | Apr 2026 |
| Willamar West Miocene Unit #m 3042-489-80122 | Citation Oil & Gas Corp. only | WillacyWillamar West (Miocene 5300) | ActiveOil | 7,984 | Dec 19, 1991 | 1 | Apr 2026 |
| Williamar West Miocene Unit #m 2342-489-00230 | Citation Oil & Gas Corp. only | WillacyWillamar West (Miocene 5850) | ActiveOil | 7,970 | Jun 10, 1991 | 2 | Apr 2026 |
| Willamar West Miocene Unit #2642-489-00260 | Citation Oil & Gas Corp. only | WillacyWillamar West (Miocene 5100) | PluggedOil | 8,051 | Jun 18, 1990 | 1 | Apr 2026 |
| Willamar West Miocene Unit #2542-489-00257 | Citation Oil & Gas Corp. only | WillacyWillamar West (Miocene 5100) | PluggedOil | 8,010 | Apr 11, 1990 | 1 | Sep 1996 |
| Willamar West Miocene Unit #2742-489-00296 | Citation Oil & Gas Corp. only | WillacyWillamar West (Miocene 6300) | PluggedOil | 8,034 | Apr 11, 1990 | 1 | Jan 1994 |
| Willamar West Miocene Unit #2442-489-30727 | Citation Oil & Gas Corp. only | WillacyWillamar W.(miocene 6400) | ActiveOil | 8,100 | Oct 21, 1988 | 2 | Apr 2026 |
| Sauz Ranch Mulatos Pasture #18342-489-30845 | Exxon Corp. only | WillacyWillamar West (Miocene 6350) | PluggedOil | 9,100 | Oct 4, 1988 | 2 | — |
| Sauz Ranch Mulatos Pasture #4542-489-00151 | Chestnut Explor. and Prod. Inc. only | WillacyWillamar West | PluggedOil | 7,981 | Sep 2, 1988 | 1 | — |
| Sauz Ranch Mulatos Pasture #5142-489-00142 | Chestnut Explor. and Prod. Inc. only | WillacyWillamar West | PluggedOil | 7,953 | Jun 13, 1988 | 1 | May 2017 |
| Sauz Ranch Mulatos Pasture #20542-489-30874 | Chestnut Explor. and Prod. Inc. only | WillacyWillamar West | PluggedOil | 9,100 | Jun 7, 1988 | 2 | — |
| Sauz Ranch Mulatos Pasture #163 D42-489-30591 | Parker & Parsley Development L.P only | WillacyWildcat | PluggedOil | 8,400 | Jun 9, 1987 | 3 | — |
| Sauz Ranch Mulatos Pasture #12042-489-00210 | Exxon Corp. only | WillacyWillamar West (Miocene 6300) | PluggedOil | 8,000 | Jan 22, 1987 | 2 | — |