| Brown,jack W. 2 #142-435-39062 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 9,825 | Aug 4, 2008 | — | — |
| Mayer Edwin S. Jr. B 38 #342-435-39063 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,603 | Aug 4, 2008 | — | — |
| Mayer Edwin S. Jr. B 38 #242-435-39064 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,600 | Aug 2, 2008 | — | — |
| Stewart #30842-435-39065 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 5,511 | Aug 2, 2008 | — | — |
| Mayer Edwin S. Jr. B 39 #242-435-39058 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,671 | Aug 1, 2008 | — | — |
| Mayer Edwin S. Jr. B 39 #342-435-39059 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,090 | Aug 1, 2008 | — | — |
| Mayer Edwin S. Jr. B 39 #442-435-39060 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,702 | Aug 1, 2008 | — | — |
| Mittel Ben #2542-435-39061 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,752 | Jul 31, 2008 | — | — |
| Stewart #20742-435-39052 | Highmount Expl & Prod Texas LLC only | Sutton, TXSawyer (Canyon) | PluggedGas | 5,750 | Jul 30, 2008 | — | — |
| Mayer Edwin S. Jr. B 39 #142-435-39057 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,650 | Jul 30, 2008 | — | — |
| Simmons 3 #1042-435-39055 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,166 | Jul 28, 2008 | — | — |
| Evans 120 #242-435-39049 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 7,309 | Jul 24, 2008 | — | — |
| Diebitsch 70 #1642-435-39050 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,193 | Jul 24, 2008 | — | — |
| Canyon Ranch #311S42-435-39016 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,463 | Jul 22, 2008 | — | — |
| Canyon Ranch #310S42-435-39020 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,330 | Jul 22, 2008 | — | — |
| Shurley 123 #2842-435-39041 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,679 | Jul 22, 2008 | — | — |
| Shurley 123 #2942-435-39042 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,666 | Jul 22, 2008 | — | — |
| Shurley 123 #3042-435-39043 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,665 | Jul 22, 2008 | — | — |
| Shurley 123 #3142-435-39044 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,710 | Jul 22, 2008 | — | — |
| Shurley 123 #3242-435-39045 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,664 | Jul 22, 2008 | — | — |
| Simmons 72 #1642-435-39048 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,108 | Jul 22, 2008 | — | — |
| Lancaster 185 #342-435-39051 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,225 | Jul 22, 2008 | — | — |
| Shurley 123 #2742-435-39040 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,653 | Jul 21, 2008 | — | — |
| Stewart #20842-435-39047 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,512 | Jul 21, 2008 | — | — |
| Stewart #20642-435-39046 | Highmount Expl & Prod Texas LLC only | Sutton, TXSawyer (Canyon) | PluggedGas | 5,750 | Jul 18, 2008 | — | — |
| Kelly 102 #2842-435-38286 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,503 | Jul 17, 2008 | — | — |
| Kelly 102 #2642-435-38287 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,473 | Jul 17, 2008 | — | — |
| Kelly 102 #2742-435-38288 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,534 | Jul 17, 2008 | — | — |
| Kelly 102 #2942-435-38542 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,499 | Jul 17, 2008 | — | — |
| Kelly 102 #3042-435-38544 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,471 | Jul 17, 2008 | — | — |
| Kelly 102 #3142-435-38545 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,538 | Jul 17, 2008 | — | — |
| Stewart #10642-435-39037 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 5,110 | Jul 17, 2008 | — | — |
| Stewart #31142-435-39038 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 5,335 | Jul 17, 2008 | — | — |
| Stewart #30742-435-39039 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,700 | Jul 17, 2008 | — | — |
| Stewart #10542-435-39035 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 5,095 | Jul 16, 2008 | — | — |
| Stewart #31042-435-39036 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,490 | Jul 16, 2008 | — | — |
| Jones 122 #1842-435-39033 | Robert C. Brower LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,430 | Jul 11, 2008 | — | — |
| Sawyer a 144 #1242-435-39028 | Robert C. Brower LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,748 | Jul 9, 2008 | — | — |
| Sawyer 145 #2042-435-39030 | Robert C. Brower LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 7,164 | Jul 9, 2008 | — | — |
| Sawyer 145 #1242-435-39031 | Robert C. Brower LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 7,100 | Jul 9, 2008 | — | — |
| Sawyer 146 #1242-435-39032 | Robert C. Brower LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,193 | Jul 9, 2008 | — | — |
| Mayer Ranch 35 #1242-435-39025 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,700 | Jul 7, 2008 | — | — |
| Mayer Ranch 35 #1342-435-39026 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,445 | Jul 7, 2008 | — | — |
| Mayer Ranch 35 #1142-435-39027 | Upp Operating LLC only | Sutton, TXKelley (Ellenburger) | ActiveGas | 8,617 | Jul 7, 2008 | — | — |
| Mayer Ranch 40 #1142-435-39024 | Upp Operating LLC only | Sutton, TXKelley (Ellenburger) | ActiveGas | 8,618 | Jul 3, 2008 | — | — |
| Pfluger 85 #1042-435-34936 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,410 | Jul 1, 2008 | — | — |
| Sawyer 169 #1442-435-39021 | Robert C. Brower LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 7,284 | Jun 30, 2008 | — | — |
| Sawyer 170 #1342-435-39023 | Robert C. Brower LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,287 | Jun 30, 2008 | — | — |
| Sawyer 169 #942-435-39022 | Robert C. Brower LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 7,287 | Jun 28, 2008 | — | — |
| Jones 97 #1542-435-39015 | Robert C. Brower LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,617 | Jun 26, 2008 | — | — |