| Watt #142-373-30645 | Core E & P Corp. | Polk, TXLivingston (2020) | PluggedGas | 6,200 | Oct 18, 2000 | — | — |
| Wardlaw-Lindsay #170842-107-30988 | Core E & P Corp. | Crosby, TXForbes (San Andres) | PluggedOil | 4,000 | May 19, 1999 | — | — |
| Eppenauer A. R. -a- #1 U42-103-03325 | Core E & P Corp. | Crane, TXBayview (San Andres) | PluggedOil | 3,750 | Jan 12, 1998 | — | — |
| Wendel A. #1R42-175-31121 | Core E & P Corp. | Goliad, TXSchroeder (Frio 2830) | PluggedGas | 6,000 | Jan 30, 1997 | — | — |
| Wardlaw-Lindsay #142-107-30983 | Core E & P Corp. | Crosby, TXForbes (Glorieta) | PluggedOil | 4,000 | Jan 17, 1997 | — | — |
| McBride/Ragsdale #2D42-409-02865 | Core E & P Corp. | San Patricio, TXTaft South (3800) | PluggedGas | 6,380 | Feb 25, 1994 | — | — |
| Wendel Alonzo et UX #142-175-32162 | Core E & P Corp. | Goliad, TXReichert (Frio 3530) | PluggedGas | 4,000 | Jul 2, 1993 | — | — |
| Preiss Preston et al #142-175-32163 | Core E & P Corp. | Goliad, TXReichert (Miocene 1800) | PluggedGas | 3,000 | Jul 2, 1993 | — | — |
| Holland Kathleen et al Unit 1 #742-175-32695 | Core E & P Corp. | Goliad, TXMaetze (1550 Miocene) | PluggedGas | 1,650 | Mar 4, 1993 | — | — |
| Wendel Alonzo et UX #2A42-175-32694 | Core E & P Corp. | Goliad, TXReichert (Frio 3040) | PluggedGas | 3,650 | Feb 26, 1993 | — | — |
| Preston Preiss et al #342-175-32690 | Core E & P Corp. | Goliad, TXReichert (Miocene 1800) | PluggedGas | 20,003 | Feb 19, 1993 | — | — |
| McBride/Ragsdale #142-409-32416 | Core E & P Corp. | San Patricio, TXTaft South (6280 Sand) | PluggedOil | 6,500 | Dec 23, 1992 | — | — |
| Koch Santa FE Unit #442-245-02550 | Core E & P Corp. | Jefferson, TXStowell (5800) | PluggedOil | 7,650 | Jun 9, 1992 | — | — |
| Steele-Schmucker Unit O/a #3 F42-245-03147 | Core E & P Corp. | Jefferson, TXStowell (Schmucker) | PluggedOil | 8,000 | Dec 17, 1991 | — | — |
| Koch T. F. NCT-1 #3 F42-245-03212 | Core E & P Corp. | Jefferson, TXStowell (Intermediate -B-) | Shut inOil | 8,000 | Apr 3, 1991 | — | — |
| Barber #142-391-31995 | Core E & P Corp. | Refugio, TXBlanco Creek (Frio 4700-Carter) | Temporarily abandonedGas | 6,295 | Dec 11, 1990 | — | — |
| McCoy #1HZ42-163-32901 | Core E & P Corp. | Frio, TXPearsall (Austin Chalk) | PluggedOil | 7,000 | Oct 24, 1990 | — | — |
| Obregon #1HZ42-163-31967 | Core E & P Corp. | Frio, TXPearsall (Austin Chalk) | PluggedOil | 9,500 | Oct 23, 1990 | — | — |
| Hugo II #1HZ42-163-32603 | Core E & P Corp. | Frio, TXPearsall (Austin Chalk) | PluggedOil | 7,000 | Dec 11, 1989 | — | — |
| Morrison #642-175-32431 | Core E & P Corp. | Goliad, TXMarshall (Frio II B) | PluggedGas | 3,500 | Aug 11, 1989 | — | — |
| Ray #142-025-32523 | Core E & P Corp. | Bee, TXPoesta Creek (2700) | PluggedGas | 3,500 | May 26, 1989 | — | — |
| Morrison #442-175-32399 | Core E & P Corp. | Goliad, TXMarshall (Frio VII) | PluggedGas | 3,500 | Apr 21, 1989 | — | — |
| Burns Heirs #242-283-31259 | Core E & P Corp. | La Salle, TXPearsall (Austin Chalk) | PluggedOil | 8,300 | Apr 20, 1989 | — | — |
| Stephenson Margaret #142-163-32571 | Core E & P Corp. | Frio, TXPearsall (Austin Chalk) | PluggedOil | 7,400 | Nov 23, 1988 | — | — |
| Flinn Heirs #142-409-32153 | Core E & P Corp. | San Patricio, TXTaft South (7200 Sand) | PluggedOil | 7,500 | May 26, 1988 | — | — |
| Flinn Heirs #342-409-32223 | Core E & P Corp. | San Patricio, TXTaft South (2470 Sand) | PluggedGas | 7,800 | Jan 22, 1988 | — | — |
| Koch Santa FE Unit #6 H42-245-02552 | Core E & P Corp. | Jefferson, TXStowell (5930) | PluggedOil | 8,000 | May 15, 1987 | — | — |
| Oconnor M. E. #6 T42-391-31205 | Core E & P Corp. | Refugio, TXWoodsboro (3500) | PluggedGas | 6,000 | Dec 17, 1985 | — | — |
| Koch Santa FE Unit #8 F42-245-03403 | Core E & P Corp. | Jefferson, TXStowell (Englin-Marg) | PluggedOil | 8,332 | Aug 16, 1985 | — | — |
| Walton Lillian #142-013-33333 | Core E & P Corp. | Atascosa, TXVelma (Buda Lime) | PluggedOil | 7,400 | Apr 16, 1985 | — | — |
| Martin Jim #242-013-32951 | Core E & P Corp. | Atascosa, TXLa Parita | Shut inOil | 5,550 | Sep 26, 1984 | — | — |
| Koch T.F. NCT-1 #442-245-30210 | Core E & P Corp. | Jefferson, TXStowell (Englin-Marg) | PluggedGas | 8,011 | Aug 16, 1984 | — | — |
| Martin Jim #142-013-32721 | Core E & P Corp. | Atascosa, TXLa Parita | Shut inOil | 5,750 | May 9, 1984 | — | — |
| Koch-Santa FE Unit #142-245-02547 | Core E & P Corp. | Jefferson, TXStowell (Intermediate U-2) | PluggedOil | 7,710 | Dec 1, 1983 | — | — |
| Waltom Lillian #342-013-32447 | Core E & P Corp. | Atascosa, TXVelma (ESCONDID0) | PluggedOil | 5,000 | Nov 28, 1983 | — | — |
| Campbell #142-013-32448 | Core E & P Corp. | Atascosa, TXVelma (ESCONDID0) | PluggedOil | 5,000 | Nov 28, 1983 | — | — |
| Waltom Lillian #242-013-32388 | Core E & P Corp. | Atascosa, TXVelma (ESCONDID0) | PluggedOil | 5,000 | Sep 26, 1983 | — | — |
| Wallis -B- #1042-475-32798 | Core E & P Corp. | Ward, TXWard South | PluggedOil | 2,750 | Apr 21, 1983 | — | — |
| Waltom Lillian #142-013-31773 | Core E & P Corp. | Atascosa, TXVelma (ESCONDID0) | PluggedOil | 4,800 | Dec 13, 1982 | — | — |
| Koch-Santa FE Unit #242-245-02548 | Core E & P Corp. | Jefferson, TXStowell (5800) | PluggedGas | 6,850 | Jan 30, 1979 | — | — |
| Valmore Unit #2 F42-245-02545 | Core E & P Corp. | Jefferson, TXStowell (7350) | PluggedOil | — | — | — | — |
| Koch-Santa FE Unit #5 H42-245-02551 | Core E & P Corp. | Jefferson, TXStowell (Miocene 5800) | PluggedGas | — | — | — | — |
| Koch T. F. NCT-1 #142-245-02573 | Core E & P Corp. | Jefferson, TXStowell (Englin-Marg) | Shut inOil | 7,898 | — | — | — |
| Koch T.f.nct-1 #242-245-02574 | Core E & P Corp. | Jefferson, TXStowell (Crawford U-1) | Temporarily abandonedGas | 7,782 | — | — | — |
| Koch T. F. NCT-2 #242-245-02576 | Core E & P Corp. | Jefferson, TXStowell (Crawford U-1) | PluggedOil | — | — | — | — |
| Koch Santa FE Unit #7 D42-245-03116 | Core E & P Corp. | Jefferson, TXStowell (6650) | PluggedOil | — | — | — | — |
| Schmucker S. J. #142-245-81485 | Core E & P Corp. | Jefferson, TXStowell | PluggedOil | — | — | — | — |
| Reed D. C. -a- #142-371-01158 | Core E & P Corp. | Pecos, TXNetterville | PluggedOil | — | — | — | — |
| Abell #142-371-02036 | Core E & P Corp. | Pecos, TXNetterville | PluggedOil | — | — | — | — |
| Abell #242-371-02037 | Core E & P Corp. | Pecos, TXNetterville | PluggedOil | — | — | — | — |