| Creek #970342-435-39400 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Leonard) | PluggedOil | 4,200 | Jul 24, 2012 | — | — |
| Hollenbeck #158542-413-32830 | Highmount Expl & Prod Texas LLC | Schleicher, TXSawyer (Canyon) | PluggedGas | 8,500 | Mar 22, 2012 | — | — |
| Mayer Edwin S. Jr. #142-435-30305 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 8,300 | Mar 25, 2010 | — | — |
| Epps H. C. #103842-435-30359 | Highmount Expl & Prod Texas LLC | Sutton, TXHolman Ranch N (Penn) | PluggedGas | 8,000 | Apr 17, 2009 | — | — |
| Peterson 55 #1 X42-137-31770 | Highmount Expl & Prod Texas LLC | Edwards, TXSawyer (Canyon) | PluggedGas | 9,700 | Oct 19, 2004 | — | — |
| Fields 57 #442-435-35199 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,100 | Aug 1, 2000 | — | — |
| Fields 51 #442-435-32042 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,000 | May 9, 2000 | — | — |
| Fields 57 #242-435-35119 | Highmount Expl & Prod Texas LLC | Sutton, TXFawcett (Wolfcamp) | PluggedGas | 5,800 | Apr 11, 2000 | — | — |
| Vanderstucken 82 #142-435-35037 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 5,500 | Dec 29, 1999 | — | — |
| Aldwell-McPherson #242-435-34973 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 9,000 | Aug 23, 1999 | — | — |
| Dunbar Ned #3842-435-34883 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,000 | Jul 14, 1998 | — | — |
| Aldwell-McPherson #142-435-34871 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 8,800 | Jul 8, 1998 | — | — |
| Dunbar Ned #2842-435-34843 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,500 | May 13, 1998 | — | — |
| Foster Jr 81 #342-465-30581 | Highmount Expl & Prod Texas LLC | Val Verde, TXSimpson-Mann (Canyon) | PluggedGas | 5,950 | Apr 17, 1998 | — | — |
| Foster Jr 81 #142-465-30579 | Highmount Expl & Prod Texas LLC | Val Verde, TXSimpson-Mann (Canyon) | PluggedGas | 5,950 | Apr 3, 1998 | — | — |
| Foster J. R. 81 #242-465-30577 | Highmount Expl & Prod Texas LLC | Val Verde, TXSimpson-Mann (Canyon) | PluggedGas | 5,950 | Mar 16, 1998 | — | — |
| Jones 120 #1442-435-34734 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,350 | Jul 2, 1997 | — | — |
| Foster J.R. 82 #142-465-30553 | Highmount Expl & Prod Texas LLC | Val Verde, TXSimpson-Mann (Canyon) | PluggedGas | 6,200 | Jul 2, 1997 | — | — |
| Foster J.R. 82 #442-465-30554 | Highmount Expl & Prod Texas LLC | Val Verde, TXSimpson-Mann (Canyon) | PluggedGas | 6,200 | Jul 2, 1997 | — | — |
| Bloodworth 140 #642-435-34614 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 8,500 | Aug 8, 1996 | — | — |
| Mayer Minnie H. D-38 #242-435-34495 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 8,100 | Mar 27, 1995 | — | — |
| Mayer Ranch K #100242-435-34453 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 8,200 | Feb 2, 1995 | — | — |
| Fields 17 #242-435-30949 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,202 | Apr 13, 1994 | — | — |
| Steen #3242-435-34151 | Highmount Expl & Prod Texas LLC | Sutton, TXSonora (Canyon Upper) | PluggedGas | 5,700 | Jan 13, 1994 | — | — |
| Fields #242-435-32111 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Wolfcamp) | PluggedGas | 6,000 | Mar 9, 1992 | — | — |
| Canyon Ranch #1123E42-137-31094 | Highmount Expl & Prod Texas LLC | Edwards, TXSawyer (Canyon) | PluggedGas | 6,232 | Jun 17, 1991 | — | — |
| Canyon Ranch #1047S42-435-33803 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 5,400 | May 28, 1991 | — | — |
| Deberry-Boyette Unit #642-435-33742 | Highmount Expl & Prod Texas LLC | Sutton, TXSonora (Canyon Upper) | PluggedGas | 6,700 | Feb 22, 1991 | — | — |
| Vanderstucken 82 #442-435-33566 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 5,900 | Feb 14, 1990 | — | — |
| Fields 15 #642-435-33473 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,090 | May 26, 1989 | — | — |
| Shurley #2242-435-33455 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,200 | Jan 20, 1989 | — | — |
| Canyon Ranch #1391S42-435-33370 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,100 | Aug 21, 1987 | — | — |
| Johansen B #12342-435-33296 | Highmount Expl & Prod Texas LLC | Sutton, TXWhitehead (Strawn) | PluggedGas | 9,200 | Jun 12, 1986 | — | — |
| Mayfield Ranch E #9142-137-30903 | Highmount Expl & Prod Texas LLC | Edwards, TXM. M. W. (Canyon) | PluggedGas | 4,300 | Mar 11, 1985 | — | — |
| Mayfield Ranch C #8842-137-30902 | Highmount Expl & Prod Texas LLC | Edwards, TXM. M. W. (Canyon) | PluggedGas | 5,100 | Mar 4, 1985 | — | — |
| Mayer Ranch ZZ #6542-435-33228 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,250 | Jan 23, 1985 | — | — |
| Mayer Ranch CC #2742-435-33193 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,800 | Aug 27, 1984 | — | — |
| Mayer Ranch y #2342-435-33111 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,800 | Jun 14, 1984 | — | — |
| Mayer Ranch Z #2442-435-33140 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,600 | May 25, 1984 | — | — |
| Mayer Ranch VV #6042-435-33133 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,600 | May 17, 1984 | — | — |
| Mayer Ranch C #342-435-33102 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,500 | May 2, 1984 | — | — |
| Mayer Ranch G #742-435-33099 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,500 | Mar 29, 1984 | — | — |
| Pfluger 105 #742-435-33065 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,000 | Jan 5, 1984 | — | — |
| Fawcett 130 #642-435-33049 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,800 | Nov 22, 1983 | — | — |
| Martin #342-435-33020 | Highmount Expl & Prod Texas LLC | Sutton, TXSonora (Canyon Upper) | PluggedGas | 6,400 | Sep 6, 1983 | — | — |
| Shurley 96 #642-435-32993 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,000 | Jul 15, 1983 | — | — |
| Allison-Miers #710342-435-32980 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 6,000 | May 10, 1983 | — | — |
| Sawyer 168 #642-435-32973 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,900 | May 5, 1983 | — | — |
| Ward 114 #742-435-32962 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 7,650 | Apr 19, 1983 | — | — |
| Friend Joe Estate #2034A42-105-34407 | Highmount Expl & Prod Texas LLC | Crockett, TXSawyer (Canyon) | PluggedGas | 9,500 | Mar 9, 1983 | — | — |