| Sauz Ranch Mulatos Pasture #18642-489-30848 | Parker & Parsley Development L.P | Willacy, TXWillamar West (Miocene 5300) | PluggedOil | 7,500 | Apr 3, 1987 | — | — |
| Yturria Frank Etal #142-489-30897 | Quinoco Petroleum Inc. | Willacy, TXLa Sara E. (7890) | PluggedGas | 9,000 | Apr 3, 1987 | — | — |
| Floyd #142-489-30913 | Corpus Christi Oil & Gas Co. | Willacy, TXChapote (10700) | PluggedGas | 13,000 | Mar 26, 1987 | — | — |
| Kleberg R.J. Jr.tr.stillman #4442-489-30609 | Exxon Corp. | Willacy, TXTordilla (J-58) | PluggedGas | 10,400 | Mar 12, 1987 | — | — |
| Sauz Ranch Mulatos Pasture #149 D42-489-00561 | Exxon Corp. | Willacy, TXWillamar West (Miocene 5650) | PluggedOil | 6,500 | Feb 25, 1987 | — | — |
| La Sara #142-489-30742 | Quinoco Petroleum Inc. | Willacy, TXChess (No. 44) | PluggedOil | 8,500 | Feb 2, 1987 | — | — |
| Cavazos J. C. #542-489-30912 | Citation Oil & Gas Corp. | Willacy, TXWillamar (5120) | PluggedOil | 5,600 | Jan 30, 1987 | — | — |
| Sauz Ranch Mulatos Pasture #12042-489-00210 | Exxon Corp. | Willacy, TXWillamar West (Miocene 6300) | PluggedOil | 8,000 | Jan 22, 1987 | — | — |
| Yturria L&C Co. Nct. #20 F42-489-00623 | Cody Energy LLC | Willacy, TXRaymondville (LM-15) | PluggedGas | 7,600 | Jan 20, 1987 | — | — |
| Willamar Community U #242-489-30911 | Citation Oil & Gas Corp. | Willacy, TXWillamar (5120) | PluggedOil | 5,600 | Jan 20, 1987 | — | — |
| Sauz Ranch Mulatos Pasture #151 D42-489-00663 | Chestnut Explor. and Prod. Inc. | Willacy, TXWillamar West | PluggedOil | 8,010 | Dec 10, 1986 | — | — |
| Willamar West Miocene Unit #m 442-489-00565 | Citation Oil & Gas Corp. | Willacy, TXWillamar West (Miocene 5300) | PluggedOil | 6,450 | Dec 1, 1986 | — | — |
| Fox, Gorman et al #142-489-30909 | Ayres, George C. | Willacy, TX | Not on schedule | 8,000 | Nov 18, 1986 | — | — |
| Sauz Ranch Mulatos Pasture #21542-489-30908 | Chestnut Explor. and Prod. Inc. | Willacy, TXWillamar West | PluggedOil | 9,060 | Oct 3, 1986 | — | — |
| Sauz Ranch Mulatos Pasture #7042-489-00218 | Chestnut Explor. and Prod. Inc. | Willacy, TXWillamar | PluggedOil | 7,960 | Sep 8, 1986 | — | — |
| Willamar West Miocene Unit #2242-489-30907 | Amoco Production Company | Willacy, TXWillamar, West (Miocene 5300) | Permitted | 6,500 | Aug 29, 1986 | — | — |
| Yturria Cattle Co #942-489-30638 | Petroleum Management Inc. | Willacy, TXLacal (Frio C-6) | PluggedGas | 8,240 | Aug 7, 1986 | — | — |
| Willamar East Unit #2642-489-30745 | Citation Oil & Gas Corp. | Willacy, TXWillamar | PluggedOil | 9,000 | Jul 22, 1986 | — | — |
| Yturria Cattle Co. #342-489-30692 | Texas Oil and Gas Operating LLC | Willacy, TXLa Sara (5300) | PluggedOil | 6,510 | Jun 4, 1986 | — | — |
| Yturria Cattle Co. #142-489-30906 | Hada J. L. Jr. | Willacy, TXLa Sara (No. 40 Sand) | PluggedOil | 7,000 | May 29, 1986 | — | — |
| Sauz Ranch Mulatos Pasture #182 F42-489-30823 | Cimarex Energy Co. of Colorado | Willacy, TXWillamar West (Miocene 5950) | PluggedOil | 6,800 | May 20, 1986 | — | — |
| Fenstermaker #1__42-489-30905 | — | Willacy, TXWillamar | Plugged | 8,200 | Apr 28, 1986 | — | — |
| Willamar West Miocene Unit #m 642-489-00594 | Citation Oil & Gas Corp. | Willacy, TXWillamar West (Miocene 5300) | Shut inOil | 7,400 | Apr 17, 1986 | — | — |
| Cavazos Nicholas #442-489-00430 | Citation Oil & Gas Corp. | Willacy, TXWillamar | PluggedOil | 7,942 | Mar 18, 1986 | — | — |
| Sauz Ranch Mulatos Past. #18142-489-30825 | Chestnut Explor. and Prod. Inc. | Willacy, TXWillamar West (Miocene 6050 N) | ActiveWater Supply | 6,800 | Mar 12, 1986 | — | — |
| Sauz Ranch Mulatos Pasture #19242-489-30903 | Exxon Corp. | Willacy, TXWillamar | Not on schedule | 8,800 | Mar 4, 1986 | — | — |
| Sauz Ranch Mulatos Pasture #19342-489-30904 | Exxon Corp. | Willacy, TXWillamar | Not on schedule | 8,800 | Mar 4, 1986 | — | — |
| Yturria Cattle Co. #1242-489-30711 | Petroleum Management Inc. | Willacy, TXLacal (7990) | PluggedGas | 9,422 | Mar 3, 1986 | — | — |
| Sauz Ranch Mulatos Pasture #4942-489-00162 | Chestnut Explor. and Prod. Inc. | Willacy, TXWillamar West | PluggedOil | 7,950 | Feb 14, 1986 | — | — |
| Robert Todd S. #1__42-489-30902 | — | Willacy, TX | Plugged | 4,600 | Feb 6, 1986 | — | — |
| Sauz Ranch Mulatos Pasture #21742-489-30901 | Exxon Corp. | Willacy, TX | Not on schedule | 9,080 | Jan 31, 1986 | — | — |
| Sauz Ranch Mulatos Pasture #21442-489-30900 | Exxon Corp. | Willacy, TXWillamar | Not on schedule | 8,790 | Jan 30, 1986 | — | — |
| Yturria Cattle Company #1242-489-30751 | Gainco Inc. | Willacy, TXLa Sara (3460 Sand) | PluggedGas | 6,470 | Jan 17, 1986 | — | — |
| Kleberg R. J. Jr. Tr. Stillman #8342-489-30899 | Exxon Corp. | Willacy, TXWildcat | PluggedOil | 15,500 | Jan 16, 1986 | — | — |
| Sauz Ranch Mulatos Pasture #21042-489-30898 | Chestnut Explor. and Prod. Inc. | Willacy, TXWillamar (Graben a-1 Sd. N.) | PluggedOil | 9,040 | Dec 19, 1985 | — | — |
| Sauz Ranch Mulatos Pasture #20842-489-30896 | Chestnut Explor. and Prod. Inc. | Willacy, TXWillamar (Graben a-1 Sd. N.) | PluggedOil | 9,015 | Dec 13, 1985 | — | — |
| La Sal Vieja #3D42-489-00531 | Apache Corporation | Willacy, TXLa Sal Vieja | PluggedGas | 8,905 | Nov 8, 1985 | — | — |
| Yturria Cattle Co. #17 U42-489-30894 | Durango Resources Corp. | Willacy, TXLa Sara (No. 19 Sand) | PluggedOil | 5,500 | Oct 11, 1985 | — | — |
| Willamar West Unit #230WI42-489-30892 | Citation Oil & Gas Corp. | Willacy, TXWillamar West | Shut inOil | 8,200 | Oct 7, 1985 | — | — |
| Sauz Ranch Mulatos Pasture #19442-489-30873 | Shoco Production LLC | Willacy, TXWillamar (Graben a-1 Sd. N.) | ActiveOil | 8,000 | Sep 25, 1985 | — | — |
| Willamar West Unit #228WI42-489-30890 | Citation Oil & Gas Corp. | Willacy, TXWillamar West | PluggedOil | 8,100 | Sep 25, 1985 | — | — |
| Ely W. W. #142-489-00514 | Smith Production Inc. | Willacy, TXChess (No. 38) | PluggedOil | 7,250 | Sep 19, 1985 | — | — |
| Garcia #142-489-30889 | — | Willacy, TX | Plugged | 7,000 | Sep 17, 1985 | — | — |
| Garcia J. A. -a- #142-489-30888 | Southwest Oil & Land Inc. | Willacy, TXLa Sara N. (No. 31-a Sd.) | PluggedOil | 7,000 | Aug 28, 1985 | — | — |
| Willamar West Unit #201WI42-489-30887 | Citation Oil & Gas Corp. | Willacy, TXWillamar West | Shut inOil | 8,100 | Aug 27, 1985 | — | — |
| Sauz Ranch Mulatos Pasture #19942-489-30883 | Exxon Corp. | Willacy, TXWillamar West (Miocene 4500) | PluggedGas | 5,760 | Jul 24, 1985 | — | — |
| Sauz Ranch Mulatos Pasture #20442-489-30877 | Shoco Production LLC | Willacy, TXWillamar West | ActiveOil | 8,070 | Jul 18, 1985 | — | — |
| Sauz Ranch Mulatos Pasture #20042-489-30880 | Chestnut Explor. and Prod. Inc. | Willacy, TXWillamar West | PluggedOil | 9,065 | Jul 18, 1985 | — | — |
| Sauz Ranch Mulatos Pasture #19742-489-30881 | Shoco Production LLC | Willacy, TXWillamar West | Not on scheduleOil | 8,895 | Jul 18, 1985 | — | — |
| Sauz Ranch Mulatos Pasture #19042-489-30882 | Chestnut Explor. and Prod. Inc. | Willacy, TXWillamar West | PluggedOil | 9,100 | Jul 18, 1985 | — | — |