| Durrett #242-155-30384 | Blackbrush O & G LLC | Foard, TXThalia (Wichita Falls) | ActiveGas | 2,575 | Feb 2, 1999 | — | — |
| Durrett #642-155-30559 | Blackbrush O & G LLC | Foard, TXThalia (Wichita Falls) | ActiveGas | 2,174 | Jan 25, 1999 | — | — |
| Gamble #742-155-30596 | Blackbrush O & G LLC | Foard, TXThalia (Wichita Falls) | ActiveGas | 964 | Jan 8, 1999 | — | — |
| Johnson-Kuehn Trust Unit #242-155-30597 | Blackbrush O & G LLC | Foard, TXThalia (Wichita Falls) | ActiveGas | 1,006 | Jan 8, 1999 | — | — |
| Kuehn Ward #742-155-30595 | Blackbrush O & G LLC | Foard, TXThalia (Wichita Falls) | ActiveGas | 1,000 | Jan 5, 1999 | — | — |
| Kuehn #142-155-30263 | Blackbrush O & G LLC | Foard, TXThalia (Wichita Falls) | ActiveGas | 2,416 | Dec 2, 1998 | — | — |
| Gordon Gas Unit #442-025-32888 | Blackbrush O & G LLC | Bee, TXPawnee (Edwards) | ActiveGas | 14,000 | Apr 15, 1998 | — | — |
| Schulz 2H Gas Unit #2HHZ42-297-34264 | Blackbrush O & G LLC | Live Oak, TXThree Rivers (Edwards) | ActiveGas | 14,800 | Jul 10, 1997 | — | — |
| Morales Fred #342-163-32278 | Blackbrush O & G LLC | Frio, TXPearsall (Navarro Sand) | Shut inOil | 7,350 | May 12, 1997 | — | — |
| J A Leppard Gas Unit #1HZ42-025-30389 | Blackbrush O & G LLC | Bee, TXPawnee (Edwards) | ActiveGas | 14,200 | Mar 3, 1997 | — | — |
| Benham Gas Unit #1HZ42-297-30826 | Blackbrush O & G LLC | Live Oak, TXPawnee (Edwards) | ActiveGas | 14,208 | Jan 15, 1997 | — | — |
| Matthews Estate #342-155-30366 | Blackbrush O & G LLC | Foard, TXThalia (Wichita Falls) | ActiveGas | 2,726 | Nov 20, 1996 | — | — |
| Turner Gas Unit #2HZ42-025-30478 | Blackbrush O & G LLC | Bee, TXPawnee (Edwards) | ActiveGas | 14,150 | Sep 11, 1996 | — | — |
| Johnson-Hammonds #242-155-30588 | Blackbrush O & G LLC | Foard, TXThalia (Wichita Falls) | PluggedGas | 2,000 | May 28, 1996 | — | — |
| Mathews J. F. #142-155-30412 | Blackbrush O & G LLC | Foard, TXThalia (Wichita Falls) | ActiveGas | 2,354 | Apr 16, 1996 | — | — |
| Abston #142-155-30309 | Blackbrush O & G LLC | Foard, TXThalia (Wichita Falls) | ActiveGas | 2,106 | Aug 2, 1994 | — | — |
| Hildebrand Ira #1HZ42-163-32062 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | PluggedOil | 7,200 | Jun 15, 1993 | — | — |
| Arrow-Hildebrand #4 #4HZ42-163-32108 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | PluggedOil | 6,900 | Apr 15, 1993 | — | — |
| Hildebrand #5HZ42-163-33151 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | PluggedOil | 7,500 | Feb 24, 1993 | — | — |
| Shiner Ranch -B- #6HZ42-163-33149 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | ActiveOil | 11,456 | Feb 18, 1993 | — | — |
| Hildebrand #4HZ42-163-33143 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | PluggedOil | 7,300 | Dec 23, 1992 | — | — |
| Shiner Ranch -B- #5HZ42-163-33136 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | PluggedOil | 7,180 | Nov 13, 1992 | — | — |
| Hildebrand #3HZ42-163-33139 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | PluggedOil | 7,300 | Oct 22, 1992 | — | — |
| Ft. Worth National Bank Gas Unit #342-123-31713 | Blackbrush O & G LLC | De Witt, TXBuchel (Edwards) | ActiveGas | 13,748 | Oct 2, 1992 | — | — |
| Shiner Ranch #7HZ42-163-33134 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | PluggedOil | 7,500 | Sep 16, 1992 | — | — |
| Hildebrand #2HZ42-163-33130 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | PluggedOil | 7,300 | Jun 26, 1992 | — | — |
| Hildebrand #1HZ42-163-33127 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | PluggedOil | 7,300 | May 7, 1992 | — | — |
| Henry Bues Gas Unit #342-025-32639 | Blackbrush O & G LLC | Bee, TXPawnee (Edwards) | ActiveGas | 13,890 | Mar 6, 1992 | — | — |
| Gray #142-155-30548 | Blackbrush O & G LLC | Foard, TXThalia (Wichita Falls) | ActiveGas | 1,025 | Jan 28, 1992 | — | — |
| Shiner Ranch #3HZ42-163-33093 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | PluggedOil | 7,600 | Aug 9, 1991 | — | — |
| Samuels Leslie P. #1HHZ42-163-33044 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | PluggedOil | 7,500 | Apr 1, 1991 | — | — |
| Shiner Ranch #4HZ42-163-32975 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | PluggedOil | 7,650 | Jan 10, 1991 | — | — |
| Shiner Ranch #2HZ42-163-32976 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | PluggedOil | 7,700 | Jan 10, 1991 | — | — |
| Pearsall Partners/GLG W.a.carnes #6HZ42-163-32962 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | PluggedOil | 9,900 | Dec 31, 1990 | — | — |
| Hildebrand Ira #6HZ42-163-32913 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | PluggedOil | 7,000 | Nov 12, 1990 | — | — |
| Shiner Ranch -a- #a 3HZ42-163-32872 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | PluggedOil | 9,532 | Oct 5, 1990 | — | — |
| Kunkel-Salyer #142-255-31252 | Blackbrush O & G LLC | Karnes, TXHobson | PluggedOil | 4,200 | Aug 6, 1990 | — | — |
| Pearsall Partners/GLG W.a.carnes #4HZ42-163-32767 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | Shut inOil | 9,655 | Jul 2, 1990 | — | — |
| Shiner Ranch #1HZ42-163-32725 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | PluggedOil | 8,000 | May 10, 1990 | — | — |
| Thompson J. C. Jr. #3HZ42-163-32712 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | Shut inOil | 10,310 | May 4, 1990 | — | — |
| Carnes a #2HHZ42-163-32689 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | Shut inOil | 10,560 | Apr 5, 1990 | — | — |
| Pearsall Partners/GLG W.a.carnes #1HZ42-163-32640 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | Shut inOil | 9,483 | Feb 5, 1990 | — | — |
| Matus John Jr. #142-155-30509 | Blackbrush O & G LLC | Foard, TXThalia (Wichita Falls) | ActiveGas | 966 | Jan 17, 1990 | — | — |
| Homeyer Gas Unit #142-255-31244 | Blackbrush O & G LLC | Karnes, TXKenedy Central (Edwards) | ActiveGas | 13,600 | Jan 5, 1990 | — | — |
| Estelle Rolf Gas Unit #542-255-31228 | Blackbrush O & G LLC | Karnes, TXKenedy SW. (Edwards) | ActiveGas | 13,418 | Apr 17, 1989 | — | — |
| Bachman-Woolf-Kuehn Unit #142-155-30500 | Blackbrush O & G LLC | Foard, TXThalia (Wichita Falls) | ActiveGas | 1,027 | Jan 3, 1989 | — | — |
| Pustejovsky #142-255-31209 | Blackbrush O & G LLC | Karnes, TXPanna Maria (Edwards) | PluggedGas | 11,500 | Nov 23, 1988 | — | — |
| Hildebrand SWD #2 #242-163-32570 | Blackbrush O & G LLC | Frio, TXPearsall (Austin Chalk) | PluggedOil | 7,900 | Nov 22, 1988 | — | — |
| Matus J. Estates #342-155-30482 | Blackbrush O & G LLC | Foard, TXThalia (Cisco) | ActiveGas | 1,960 | Oct 9, 1987 | — | — |
| Kuehn #542-155-00334 | Blackbrush O & G LLC | Foard, TXThalia (Wichita Falls) | ActiveGas | 2,106 | Sep 3, 1987 | — | — |