| Jones 118 #542-435-32569 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,400 | Sep 17, 1981 | — | — |
| Fields 52 #442-435-32568 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,000 | Sep 11, 1981 | — | — |
| Jones 120 #542-435-32562 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,400 | Aug 25, 1981 | — | — |
| Shannon 51 #342-435-32524 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 8,300 | Jun 17, 1981 | — | — |
| Davis Mary Gayle #403142-435-32501 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,500 | Apr 29, 1981 | — | — |
| Askew Guy Wyatt et al #104442-435-32502 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,500 | Apr 29, 1981 | — | — |
| Shurley 123 #5A42-435-32459 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,700 | Feb 5, 1981 | — | — |
| Fields 15 #542-435-32451 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,100 | Jan 16, 1981 | — | — |
| Askew Guy Wyatt #205442-435-32445 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,500 | Dec 31, 1980 | — | — |
| David 109 #642-435-32437 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,700 | Dec 18, 1980 | — | — |
| Hull #242-435-32434 | Highmount Expl & Prod Texas LLC | Sutton, TXSonora (Canyon Upper) | PluggedGas | 6,300 | Dec 10, 1980 | — | — |
| Wallace 50 #142-435-32425 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,900 | Nov 10, 1980 | — | — |
| Askew & Glimp 55 #442-435-32416 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,000 | Oct 16, 1980 | — | — |
| Kelly 35 #242-435-32395 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 8,200 | Sep 5, 1980 | — | — |
| Hudspeth H #1X42-435-32363 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 8,000 | Jul 10, 1980 | — | — |
| Fawcett 130 #442-435-32299 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,300 | Jan 10, 1980 | — | — |
| Fields 52 #342-435-32292 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,300 | Dec 19, 1979 | — | — |
| Friess Pauline C #311142-435-32281 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,500 | Dec 11, 1979 | — | — |
| Shurley 96 #442-435-32273 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,500 | Dec 6, 1979 | — | — |
| Simmons 72 #342-435-32245 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,500 | Oct 19, 1979 | — | — |
| Espy 57 #342-435-32201 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,200 | Jul 13, 1979 | — | — |
| Diebitsch 70 #342-435-32193 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,400 | Jul 6, 1979 | — | — |
| Shurley 98 #342-435-32171 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,900 | Apr 30, 1979 | — | — |
| Shurley 98 #442-435-32168 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,900 | Apr 26, 1979 | — | — |
| Galbreath 78 #242-435-32102 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,400 | Sep 27, 1978 | — | — |
| Galbreath 91 #242-435-32093 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,250 | Jul 10, 1978 | — | — |
| Mayer Minnie H. B #142-435-31298 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 8,095 | May 17, 1978 | — | — |
| Hunt 19 #142-105-31940 | Highmount Expl & Prod Texas LLC | Crockett, TXSawyer (Canyon) | PluggedGas | 10,600 | May 8, 1978 | — | — |
| Meckel #1642-435-32058 | Highmount Expl & Prod Texas LLC | Sutton, TXSonora (Canyon Upper) | PluggedGas | 6,500 | Mar 6, 1978 | — | — |
| Wallace 77 #342-435-32048 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 5,000 | Feb 27, 1978 | — | — |
| Dunbar Ned #1042-435-32047 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,250 | Feb 23, 1978 | — | — |
| Sawyer 168 #342-435-32028 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,250 | Jan 9, 1978 | — | — |
| Meckel #1242-435-32025 | Highmount Expl & Prod Texas LLC | Sutton, TXSonora (Canyon Upper) | PluggedGas | 6,500 | Jan 4, 1978 | — | — |
| Meckel #1342-435-32026 | Highmount Expl & Prod Texas LLC | Sutton, TXSonora (Canyon Upper) | PluggedGas | 6,500 | Jan 4, 1978 | — | — |
| Wallace 65 #142-435-32009 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 4,950 | Nov 28, 1977 | — | — |
| Epps Hattie #603942-435-32000 | Highmount Expl & Prod Texas LLC | Sutton, TXHolman Ranch N (Penn) | PluggedGas | 6,500 | Nov 3, 1977 | — | — |
| Vanderstucken 1 #242-435-31997 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 4,350 | Oct 31, 1977 | — | — |
| Johansen Majory R. #342-435-31399 | Highmount Expl & Prod Texas LLC | Sutton, TXWhitehead (Strawn) | PluggedGas | 9,700 | Oct 14, 1977 | — | — |
| Johansen Majory R. #242-435-31400 | Highmount Expl & Prod Texas LLC | Sutton, TXWhitehead (Strawn) | PluggedGas | 9,700 | Oct 14, 1977 | — | — |
| Vanderstucken 69 #342-435-31940 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,100 | Sep 9, 1977 | — | — |
| Simmons 71 #242-435-31956 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,200 | Aug 4, 1977 | — | — |
| Jenkins F. J. a #142-137-30389 | Highmount Expl & Prod Texas LLC | Edwards, TXSawyer (Canyon) | PluggedGas | 6,600 | Jul 25, 1977 | — | — |
| Shannon 51 #242-435-31941 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,250 | Jul 22, 1977 | — | — |
| Simmons 72 #142-435-31930 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,200 | Jun 24, 1977 | — | — |
| Shannon 52 #242-435-31924 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,200 | Jun 13, 1977 | — | — |
| Canyon Ranch #1102E42-137-30141 | Highmount Expl & Prod Texas LLC | Edwards, TXFrances Hill (Penn) | PluggedGas | — | — | — | — |
| Canyon Ranch #0021E42-137-30216 | Highmount Expl & Prod Texas LLC | Edwards, TXSawyer (Canyon) | PluggedGas | — | — | — | — |
| Canyon Ranch #0011E42-137-30219 | Highmount Expl & Prod Texas LLC | Edwards, TXSawyer (Canyon) | PluggedGas | — | — | — | — |
| Canyon Ranch #0022E42-137-30221 | Highmount Expl & Prod Texas LLC | Edwards, TXSawyer (Canyon) | PluggedGas | — | — | — | — |
| Canyon Ranch #0013E42-137-30258 | Highmount Expl & Prod Texas LLC | Edwards, TXSawyer (Canyon) | PluggedGas | — | — | — | — |