| Bell S.H. B #5 F42-489-30604 | Exxon Corp. | Willacy, TXWillamar (Graben 6140) | PluggedGas | 8,230 | Feb 14, 1992 | — | — |
| Willamar West Miocene Unit #m 2942-489-30027 | Citation Oil & Gas Corp. | Willacy, TXWillamar West (Miocene 6300) | Temporarily abandonedGas | 7,960 | Dec 19, 1991 | — | — |
| Willamar West Miocene Unit #m 3042-489-80122 | Citation Oil & Gas Corp. | Willacy, TXWillamar West (Miocene 5300) | ActiveOil | 7,984 | Dec 19, 1991 | — | — |
| Richmond Angeline #1__42-489-30935 | — | Willacy, TX | Plugged | 7,400 | Dec 2, 1991 | — | — |
| Yturria Cattle Company #2442-489-30677 | Maynard Oil Co. | Willacy, TXLa Sara NW. (3000) | PluggedOil | 6,200 | Nov 18, 1991 | — | — |
| Cavazos Rogerio #342-489-30934 | API Operating Co. | Willacy, TXWillamar (Rumboogie) | PluggedGas | 5,800 | Sep 30, 1991 | — | — |
| Sauz Ranch Mulatos Pasture #16242-489-30629 | Exxon Corp. | Willacy, TXWildcat | PluggedGas | 8,400 | Sep 26, 1991 | — | — |
| Yturria #1A42-489-30933 | Hanson Production Company | Willacy, TXLago del Ocelot (Frio 12 150) | PluggedGas | 14,000 | Aug 6, 1991 | — | — |
| Williamar West Miocene Unit #m 2342-489-00230 | Citation Oil & Gas Corp. | Willacy, TXWillamar West (Miocene 5850) | ActiveOil | 7,970 | Jun 10, 1991 | — | — |
| Yturria L&L Co. -a- NCT-1 #25 F42-489-00628 | Texaco E & P Inc. | Willacy, TXRaymondville (A-13) | PluggedGas | 7,615 | May 28, 1991 | — | — |
| Cavazos Rogerio #242-489-30931 | API Operating Co. | Willacy, TXWillamar (Rumboogie) | PluggedGas | 5,800 | May 20, 1991 | — | — |
| Willamar Community E #742-489-30853 | Citation Oil & Gas Corp. | Willacy, TXWillamar (6350) | Temporarily abandonedGas | 6,735 | Feb 15, 1991 | — | — |
| Rectifer #142-489-30930 | Mobil Producing TX. & N.M. Inc. | Willacy, TX | Not on schedule | 250 | Jan 16, 1991 | — | — |
| Yturria #1__42-489-30929 | — | Willacy, TX | Plugged | 13,500 | Sep 18, 1990 | — | — |
| Thomas, M. G. et al #342-489-30927 | Exxon Corp. | Willacy, TX | Not on schedule | 14,700 | Aug 10, 1990 | — | — |
| Willamar West Miocene Unit #2642-489-00260 | Citation Oil & Gas Corp. | Willacy, TXWillamar West (Miocene 5100) | PluggedOil | 8,051 | Jun 18, 1990 | — | — |
| Yturria Cattle Company #2342-489-30675 | Maynard Oil Co. | Willacy, TXLa Sara NW. (3000) | PluggedOil | 6,210 | Jun 4, 1990 | — | — |
| Willamar West Miocene Unit #2542-489-00257 | Citation Oil & Gas Corp. | Willacy, TXWillamar West (Miocene 5100) | PluggedOil | 8,010 | Apr 11, 1990 | — | — |
| Willamar West Miocene Unit #2742-489-00296 | Citation Oil & Gas Corp. | Willacy, TXWillamar West (Miocene 6300) | PluggedOil | 8,034 | Apr 11, 1990 | — | — |
| Sauz Ranch Mulatos Pasture #17242-489-30665 | Parker & Parsley Development L.P | Willacy, TXWillamar West (Miocene 5300) | PluggedOil | 6,800 | Feb 28, 1990 | — | — |
| Thomas M.G. et al #242-489-30925 | Exxon Mobil Corporation | Willacy, TXTordilla (M-50 E) | PluggedGas | 15,300 | Jan 4, 1990 | — | — |
| Kleberg Robert J. Jr TR Still. #8442-489-30917 | Exxon Corp. | Willacy, TXTordilla (M-50) | PluggedGas | 18,500 | Aug 3, 1989 | — | — |
| Parham Ellie #1A42-489-30924 | Modern Exploration Inc. | Willacy, TXKing Ranch W. (Miocene 6000) | PluggedGas | 6,200 | Jul 27, 1989 | — | — |
| Hodge Estella #742-489-00563 | Amoco Production Company | Willacy, TXWildcat | PluggedOil | 9,200 | Apr 12, 1989 | — | — |
| Yturria Cattle Company C #142-489-00637 | Texas Oil and Gas Operating LLC | Willacy, TXLa Sara (No. 24 Sd.) | ActiveInjection | 7,620 | Mar 27, 1989 | — | — |
| Yturria Land & Cattle #1__42-489-30921 | — | Willacy, TXChapote (10700) | Plugged | 11,500 | Jan 23, 1989 | — | — |
| Yturria Frank D. et al Unit 1 #1__42-489-30922 | — | Willacy, TX | Plugged | 15,000 | Jan 20, 1989 | — | — |
| Fox Gorman Etal #142-489-00381 | Phoenix Oil Field Equipment Co. | Willacy, TXWillamar | Shut inOil | 7,766 | Dec 14, 1988 | — | — |
| Willamar West Miocene Unit #2442-489-30727 | Citation Oil & Gas Corp. | Willacy, TXWillamar W.(miocene 6400) | ActiveOil | 8,100 | Oct 21, 1988 | — | — |
| Jaehne Laverne #142-489-30683 | Clay Energy | Willacy, TXJabrand (Frio 9575) | PluggedGas | 10,300 | Oct 18, 1988 | — | — |
| Sauz Ranch Mulatos Pasture #18342-489-30845 | Exxon Corp. | Willacy, TXWillamar West (Miocene 6350) | PluggedOil | 9,100 | Oct 4, 1988 | — | — |
| Sauz Ranch Mulatos Pasture #4542-489-00151 | Chestnut Explor. and Prod. Inc. | Willacy, TXWillamar West | PluggedOil | 7,981 | Sep 2, 1988 | — | — |
| Fox Gorman et al #1__42-489-30920 | — | Willacy, TX | Plugged | 8,500 | Aug 30, 1988 | — | — |
| Cavazos Rogerio #142-489-30916 | API Operating Co. | Willacy, TXWillamar (5200) | PluggedGas | 8,000 | Aug 9, 1988 | — | — |
| Hawk Island Gas Unit #1__42-489-30919 | — | Willacy, TX | Plugged | 11,000 | Jul 7, 1988 | — | — |
| Kleberg R.J. Jr TR Stillman #842-489-00552 | Exxon Corp. | Willacy, TXTordilla (I-47 S) | PluggedGas | 10,650 | Jul 6, 1988 | — | — |
| Sauz Ranch Mulatos Pasture #12242-489-00128 | Shoco Production LLC | Willacy, TXWillamar (Graben C-1 Sand N.) | PluggedOil | 8,000 | Jun 15, 1988 | — | — |
| Sauz Ranch Mulatos Pasture #5142-489-00142 | Chestnut Explor. and Prod. Inc. | Willacy, TXWillamar West | PluggedOil | 7,953 | Jun 13, 1988 | — | — |
| Sauz Ranch Mulatos Pasture #20542-489-30874 | Chestnut Explor. and Prod. Inc. | Willacy, TXWillamar West | PluggedOil | 9,100 | Jun 7, 1988 | — | — |
| Sauz Ranch Mulatos Pasture #2642-489-00192 | Exxon Corp. | Willacy, TXWillamar (Graben a-1 Sd. N.) | PluggedGas | 7,950 | Mar 17, 1988 | — | — |
| Sauz Ranch Mulatos Pasture #16542-489-30635 | Exxon Corp. | Willacy, TXWillamar West (Miocene 5850) | PluggedOil | 8,500 | Feb 18, 1988 | — | — |
| Yturria Cattle Co. #242-489-30910 | Hada J. L. Jr. | Willacy, TXLa Sara (No. 38 Sand) | PluggedOil | 7,050 | Feb 18, 1988 | — | — |
| Yturria L&C Co. NCT-2 #5442-489-30918 | Apollo Petro Fuels LLC | Willacy, TXRaymondville (Consolidated) | Temporarily abandonedGas | 8,500 | Dec 18, 1987 | — | — |
| Williamar West Miocene Unit #m 1842-489-30829 | Citation Oil & Gas Corp. | Willacy, TXWillamar West (Miocene 5850) | ActiveOil | 6,500 | Nov 12, 1987 | — | — |
| Yturria Cattle Co. #442-489-00011 | Mabee Petroleum Corp. | Willacy, TXLa Sara NW. (3000) | PluggedGas | 3,400 | Nov 5, 1987 | — | — |
| Baughman M.A. #142-489-30116 | Mitchell Energy Corporation | Willacy, TXLa Sal Vieja (8 9680-9935) | PluggedGas | 11,500 | Oct 5, 1987 | — | — |
| Yturria L & C Co. NCT-2 #27 H42-489-00621 | Petro-Hunt Corporation | Willacy, TXRaymondville (A-10) | PluggedOil | 7,650 | Sep 3, 1987 | — | — |
| Yturria Cattle Co. #342-489-30914 | Discovery Petroleum L.L.C. | Willacy, TXLa Sara (No. 8 Sand) | Shut inOil | 3,510 | Jul 10, 1987 | — | — |
| Willamar East Unit #2942-489-30915 | Citation Oil & Gas Corp. | Willacy, TXWillamar | ActiveOil | 7,880 | Jul 10, 1987 | — | — |
| Sauz Ranch Mulatos Pasture #163 D42-489-30591 | Parker & Parsley Development L.P | Willacy, TXWildcat | PluggedOil | 8,400 | Jun 9, 1987 | — | — |