| Cauthorn 16 #642-435-39113 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,975 | Oct 11, 2008 | — | — |
| Holman #26842-435-39114 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,036 | Oct 11, 2008 | — | — |
| Canyon Ranch #8318S42-435-39116 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 5,738 | Oct 11, 2008 | — | — |
| Canyon Ranch #8317S42-435-39117 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 5,738 | Oct 11, 2008 | — | — |
| Canyon Ranch #1276S42-435-39082 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,753 | Oct 10, 2008 | — | — |
| Canyon Ranch #1277S42-435-39083 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,724 | Oct 10, 2008 | — | — |
| Simmons 72.5 #442-435-39120 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,123 | Oct 10, 2008 | — | — |
| Stewart #301442-435-39106 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,491 | Oct 9, 2008 | — | — |
| Holman #26642-435-39105 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,124 | Oct 8, 2008 | — | — |
| Mayfield 46 #2742-435-39096 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,316 | Oct 3, 2008 | — | — |
| Mayfield 46 #2842-435-39097 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,412 | Oct 3, 2008 | — | — |
| Mayfield 46 #2642-435-39098 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,450 | Oct 3, 2008 | — | — |
| Mayfield 46 #2942-435-39099 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,430 | Oct 3, 2008 | — | — |
| Mayfield 46 #3042-435-39100 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,392 | Oct 3, 2008 | — | — |
| Mayfield 40 #2242-435-39101 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,421 | Oct 3, 2008 | — | — |
| Morriss 82 #842-435-39102 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 6,400 | Oct 3, 2008 | — | — |
| Mayfield 40 #2442-435-39103 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,340 | Oct 3, 2008 | — | — |
| Mayfield 40 #2342-435-39104 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,463 | Oct 3, 2008 | — | — |
| Pfluger 85 #2142-435-39093 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,985 | Oct 2, 2008 | — | — |
| Jones Ranch 157 #142-435-39095 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,303 | Oct 1, 2008 | — | — |
| Simmons 3 #1142-435-39094 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,208 | Sep 30, 2008 | — | — |
| Canyon Ranch #2164S42-435-39090 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,925 | Sep 26, 2008 | — | — |
| Nicks Gerald 8 #442-435-39091 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,608 | Sep 26, 2008 | — | — |
| Lancaster 185 #442-435-39092 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,218 | Sep 26, 2008 | — | — |
| Canyon Ranch #2073S42-435-39089 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,236 | Sep 25, 2008 | — | — |
| Stewart #301642-435-39086 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 5,514 | Sep 17, 2008 | — | — |
| Stewart #301542-435-39087 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 5,522 | Sep 17, 2008 | — | — |
| Cusenbary 58 #1042-435-39084 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,020 | Sep 16, 2008 | — | — |
| Stewart #301342-435-39085 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 5,521 | Sep 16, 2008 | — | — |
| Stewart #301242-435-39088 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,519 | Sep 16, 2008 | — | — |
| Canyon Ranch SWD #11542-435-39081 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 8,200 | Sep 15, 2008 | — | — |
| Simmons 72 #1842-435-39075 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,300 | Sep 12, 2008 | — | — |
| Mayer #17A42-435-39054 | Mariner Energy, Inc.permitted by · no operator of record | Sutton, TXMayer Ranch (Canyon) | Not on schedule | 10,000 | Sep 11, 2008 | — | — |
| Simmons 71 #1742-435-39077 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,300 | Sep 10, 2008 | — | — |
| Simmons 71 #1542-435-39079 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,300 | Sep 10, 2008 | — | — |
| Simmons 72 #1742-435-39080 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,350 | Sep 10, 2008 | — | — |
| Bloodworth 140 #942-435-39069 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,510 | Sep 9, 2008 | — | — |
| Simmons 71 #1642-435-39076 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,300 | Sep 6, 2008 | — | — |
| Ward 127 #2342-435-38991 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,443 | Sep 4, 2008 | — | — |
| Meckel a #7442-435-39073 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,518 | Sep 4, 2008 | — | — |
| Mayer Ranch 41 #342-435-39072 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,625 | Sep 3, 2008 | — | — |
| Mayer Ranch 41 #442-435-39074 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,700 | Sep 3, 2008 | — | — |
| Mayer #16A42-435-39053 | Mariner Energy, Inc.permitted by · no operator of record | Sutton, TXMayer Ranch (Canyon) | Not on schedule | 10,000 | Aug 21, 2008 | — | — |
| Vanderstucken Joe M. #1942-435-39070 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,760 | Aug 21, 2008 | — | — |
| Vanderstucken Joe M. #1642-435-39071 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,833 | Aug 21, 2008 | — | — |
| Jones Ranch #186842-435-39056 | Upp Operating LLC only | Sutton, TXEldorado Southwest (Strawn) | ActiveGas | 8,216 | Aug 14, 2008 | — | — |
| Fem #141242-435-39068 | Henry Petroleum LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,855 | Aug 11, 2008 | — | — |
| Richardson 139 #1342-435-39066 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,500 | Aug 7, 2008 | — | — |
| Jones Ranch 156 #742-435-39067 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 7,800 | Aug 7, 2008 | — | — |
| Steen #10142-435-39034 | Upp Operating LLC only | Sutton, TXFawcett (Wolfcamp) | ActiveGas | 5,865 | Aug 5, 2008 | — | — |