| Wright #1B42-227-34663 | Cobra Oil & Gas Corporation | HowardMiddleton (Canyon Reef) | PluggedOil | 9,300 | Nov 12, 1991 | 2 | Aug 2011 |
| Frapart-Carruth #242-089-31845 | Cobra Oil & Gas Corporation | ColoradoGarwood West (9800) | PluggedGas | 9,100 | Oct 24, 1991 | 1 | Jan 1993 |
| Cato-Holmes Unit #142-197-30954 | Cobra Oil & Gas Corporation | HardemanKadane Cato (Congl) | ActiveOil | 8,020 | Jul 12, 1991 | 2 | Aug 2026 |
| Cato Glenn #342-197-31044 | Cobra Oil & Gas Corporation | HardemanKadane Cato (Congl) | PluggedOil | 8,400 | Jun 3, 1991 | 2 | Jul 2008 |
| Hill Katherine Trust #142-213-30669 | Cobra Oil & Gas Corporation | HendersonThomas Lake (Cotton Valley) | PluggedGas | 12,103 | Aug 22, 1990 | 1 | Oct 1994 |
| Frapart-Carruth Trust #142-089-31797 | Cobra Oil & Gas Corporation | ColoradoGarwood West (9800) | PluggedGas | 9,100 | Jun 6, 1990 | 2 | Jun 1993 |
| Schmoker Lambert Tabor Unit #142-197-31110 | Cobra Oil & Gas Corporation | HardemanChillicothe S. (Miss. Lime) | ActiveOil | 8,067 | Nov 22, 1989 | 1 | Aug 2026 |
| Chew W. D. #142-315-30764 | Cobra Oil & Gas Corporation | MarionGreen Fox (Pettit) | PluggedOil | 6,500 | Sep 13, 1989 | 1 | — |
| Wilbanks Christine M. #142-213-30632 | Cobra Oil & Gas Corporation | HendersonThomas Lake (Cotton Valley) | PluggedGas | 12,103 | Aug 10, 1989 | 3 | Feb 1995 |
| Cato Glenn #442-197-31092 | Cobra Oil & Gas Corporation | HardemanKadane Cato (Congl) | PluggedOil | 8,400 | Mar 29, 1989 | 1 | Jul 2008 |
| East Hamel Gas Unit #142-089-31717 | Cobra Oil & Gas Corporation | ColoradoHamel East (9600) | PluggedGas | 10,000 | Feb 10, 1988 | 2 | — |
| Cato Glenn #142-197-30775 | Cobra Oil & Gas Corporation | HardemanKadane Cato (Congl) | PluggedOil | 8,600 | Sep 16, 1987 | 2 | Jul 2008 |
| Vogtsberger Robert -a- #842-009-39696 | Cobra Oil & Gas Corporation | ArcherVogtsberger Pool | ActiveOil | 5,248 | Feb 18, 1987 | 1 | Aug 2026 |
| Pate #142-419-30524 | Cobra Oil & Gas Corporation | ShelbyStockman (Travis Peak) | PluggedGas | 8,500 | Jun 23, 1986 | 2 | — |
| Heydrick #142-447-34420 | Cobra Oil & Gas Corporation | ThrockmortonThrockmorton County Regular | PluggedOil | 5,500 | Jun 27, 1985 | 1 | — |
| Crump #142-401-32020 | Cobra Oil & Gas Corporation | RuskCaledonia (Rodessa) | PluggedOil | 7,350 | May 17, 1985 | 1 | — |
| Upshur County S L #111542-023-31171 | Cobra Oil & Gas Corporation | BaylorBaylor County Regular | PluggedOil | 5,500 | Mar 21, 1985 | 1 | — |
| Polk County School Land #32942-447-34357 | Cobra Oil & Gas Corporation | ThrockmortonElbert N. (Miss.) | PluggedOil | 5,200 | Mar 4, 1985 | 1 | — |
| Vogtsberger August #1042-009-38748 | Cobra Oil & Gas Corporation | ArcherVogtsberger Pool | ActiveInjection | 5,688 | Jan 25, 1985 | 1 | Aug 2026 |
| Vogtsberger August #1142-009-38741 | Cobra Oil & Gas Corporation | ArcherVogtsberger Pool | ActiveOil | 5,600 | Jan 22, 1985 | 1 | Aug 2026 |
| Chandler-Bell Unit #142-197-30794 | Cobra Oil & Gas Corporation | HardemanLucky Boys (Miss.) | ActiveOil | 8,253 | Nov 13, 1984 | 1 | Aug 2026 |
| Walser C. #342-197-30772 | Cobra Oil & Gas Corporation | HardemanWalser (Miss) | ActiveOil | 8,105 | Oct 11, 1984 | 1 | Aug 2026 |
| Mayo Unit NO.1 #242-077-33481 | Cobra Oil & Gas Corporation | ClayJoy Northeast (Ellenburger) | PluggedOil | 6,100 | Aug 8, 1984 | 1 | Feb 2019 |
| Vogtsberger August #942-009-38257 | Cobra Oil & Gas Corporation | ArcherVogtsberger Pool | ActiveOil | 5,400 | Apr 27, 1984 | 1 | Aug 2026 |
| Walser C. #142-197-30676 | Cobra Oil & Gas Corporation | HardemanWalser (Miss) | ActiveOil | 8,030 | Apr 25, 1984 | 1 | Aug 2026 |
| Curtiss W. E. #1 D42-447-33738 | Cobra Oil & Gas Corporation | ThrockmortonThrockmorton County Regular | PluggedOil | 1,100 | Aug 16, 1983 | 1 | — |
| Curt - Ham Unit #142-447-33602 | Cobra Oil & Gas Corporation | ThrockmortonGuy (Miss) | PluggedOil | 4,999 | May 27, 1983 | 1 | — |
| Tabor-Tabor #142-197-30477 | Cobra Oil & Gas Corporation | HardemanBerry West (Miss) | ActiveInjection | 8,361 | Dec 2, 1982 | 1 | Oct 2021 |
| Miller C #142-033-30815 | Cobra Oil & Gas Corporation | BordenJ.R.D. 7 (Wichita Albany) | PluggedOil | 8,600 | Sep 1, 1982 | 1 | — |
| Curtiss W. E. #142-447-33266 | Cobra Oil & Gas Corporation | ThrockmortonThrockmorton County Regular | PluggedOil | 5,200 | Aug 5, 1982 | 1 | — |
| Sims B. O. #142-481-31854 | Cobra Oil & Gas Corporation | WhartonGolden Rod (Frio 4200) | PluggedGas | 5,000 | May 20, 1982 | 2 | — |
| Mayo Joe Unit #2 #242-077-82414 | Cobra Oil & Gas Corporation | ClayJoy N.W. (Marble Falls) | ActiveOil | 6,013 | Jan 27, 1982 | 1 | Aug 2026 |
| Spears #142-197-30442 | Cobra Oil & Gas Corporation | HardemanBerry (Miss.) | ActiveOil | 8,835 | Dec 21, 1981 | 1 | Aug 2026 |
| Hodgson #104142-211-31403 | Cobra Oil & Gas Corporation | HemphillFeldman (Morrow Upper) | PluggedOil | 12,000 | Oct 22, 1981 | 1 | — |
| Jones W.W. Unit #142-077-32264 | Cobra Oil & Gas Corporation | ClayVera (Strawn) | ActiveOil | 6,016 | Jul 7, 1981 | 1 | Aug 2026 |
| Mayo Joe Unit #1 #142-077-32270 | Cobra Oil & Gas Corporation | ClayJoy N.W. (Marble Falls) | ActiveOil | 6,020 | Jun 19, 1981 | 1 | Aug 2026 |
| Ellisor Estate #142-149-30305 | Cobra Oil & Gas Corporation | FayetteSmithville (Austin Chalk) | PluggedOil | 7,500 | May 11, 1981 | 2 | — |
| Holt W. I. AB #4CS42-077-32086 | Cobra Oil & Gas Corporation | ClayJoy N.W. (Marble Falls) | ActiveOil | 6,005 | Feb 10, 1981 | 1 | Aug 2026 |
| Holt W. I. AB #3CS42-077-32087 | Cobra Oil & Gas Corporation | ClayJoy N.W. (Marble Falls) | PluggedOil | 6,150 | Feb 10, 1981 | 1 | Aug 2026 |
| Barnett Unit #142-149-30718 | Cobra Oil & Gas Corporation | FayetteGiddings (Austin Chalk-3) | PluggedOil | 9,000 | Sep 10, 1980 | 1 | — |
| Zimmerhanzel Unit #142-149-30719 | Cobra Oil & Gas Corporation | FayetteGiddings (Austin Chalk-3) | PluggedOil | 8,000 | Sep 10, 1980 | 1 | — |
| Benbrook #142-021-30273 | Cobra Oil & Gas Corporation | BastropGiddings (Austin Chalk-3) | PluggedOil | 7,500 | Mar 13, 1980 | 1 | — |
| Miller R. N. #242-033-30556 | Cobra Oil & Gas Corporation | BordenSeven J. West (Strawn) | PluggedOil | 8,600 | Jan 23, 1980 | 1 | — |
| Holt W. I. AB #2CS42-077-31646 | Cobra Oil & Gas Corporation | ClayJoy N.W. (Marble Falls) | ActiveGas | 5,971 | Jan 21, 1980 | 1 | Aug 2026 |
| Ellisor Estate #242-149-30416 | Cobra Oil & Gas Corporation | FayetteSmithville (Austin Chalk) | PluggedOil | 7,500 | Nov 5, 1979 | 1 | — |
| Ellisor Estate #342-149-30417 | Cobra Oil & Gas Corporation | FayetteSmithville (Olmos) | PluggedOil | 7,200 | Nov 5, 1979 | 1 | — |
| Holt W. I. AB #1CS42-077-31344 | Cobra Oil & Gas Corporation | ClayJoy N.W. (Marble Falls) | ActiveInjection | 6,004 | Jun 18, 1979 | 2 | Aug 2026 |
| Robinson Guy #542-363-30914 | Cobra Oil & Gas Corporation | Palo PintoBrad SW. (Big Saline Congl.) | PluggedGas | 1,600 | Oct 30, 1978 | 1 | — |
| Belew B. J. #242-033-30470 | Cobra Oil & Gas Corporation | BordenMyrtle N. (Strawn) | PluggedOil | 8,000 | Apr 17, 1978 | 1 | — |
| Veenstra A.T. #142-021-30089 | Cobra Oil & Gas Corporation | BastropSmithville (Buda) | PluggedOil | 6,930 | Sep 21, 1977 | 1 | — |