| Karnes W.H. C #942-435-37082 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 9,400 | Sep 7, 2004 | — | — |
| Arco-Phillips #230642-435-37083 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 9,355 | Sep 7, 2004 | — | — |
| Mayer Minnie H D #30442-435-37078 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,309 | Sep 3, 2004 | — | — |
| Morriss 64 #1542-435-37079 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,115 | Sep 3, 2004 | — | — |
| Morriss 64 #1442-435-37080 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,200 | Sep 3, 2004 | — | — |
| Brown/Whitehead 2 #2642-435-37075 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 9,000 | Sep 2, 2004 | — | — |
| Brown/Whitehead 2 #542-435-37076 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,650 | Sep 2, 2004 | — | — |
| Morris 64 #1142-435-37077 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,200 | Sep 2, 2004 | — | — |
| Mayer Minnie H. D #30342-435-37072 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,250 | Sep 1, 2004 | — | — |
| Canyon Ranch #9211S42-435-37073 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,849 | Sep 1, 2004 | — | — |
| Canyon Ranch #9210S42-435-37074 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,695 | Sep 1, 2004 | — | — |
| Canyon Ranch #1143S42-435-37068 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,754 | Aug 31, 2004 | — | — |
| Canyon Ranch #1058 S42-435-37069 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,663 | Aug 31, 2004 | — | — |
| Canyon Ranch #1057S42-435-37070 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,667 | Aug 31, 2004 | — | — |
| Canyon Ranch #1056S_42-435-37071 | Dominion Oklahoma Texas E&P, Incpermitted by · no operator of record | Sutton, TX | Plugged | 5,500 | Aug 31, 2004 | — | — |
| Whitehead 9 #342-435-37056 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,717 | Aug 30, 2004 | — | — |
| Whitehead 1 #242-435-37057 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,700 | Aug 30, 2004 | — | — |
| Whitehead 8 #342-435-37058 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,714 | Aug 30, 2004 | — | — |
| Whitehead 9 #442-435-37059 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,561 | Aug 30, 2004 | — | — |
| Whitehead 8 #442-435-37060 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,425 | Aug 30, 2004 | — | — |
| Whitehead 9 #242-435-37061 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,814 | Aug 30, 2004 | — | — |
| Whitehead 10 #342-435-37062 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,845 | Aug 30, 2004 | — | — |
| Whitehead 10 #242-435-37063 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,561 | Aug 30, 2004 | — | — |
| Whitehead 1 #542-435-37064 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,627 | Aug 30, 2004 | — | — |
| Whitehead 1 #342-435-37065 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,760 | Aug 30, 2004 | — | — |
| Whitehead 10 #442-435-37066 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,722 | Aug 30, 2004 | — | — |
| Whitehead 1 #442-435-37067 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,605 | Aug 30, 2004 | — | — |
| Hudspeth B #10342-435-37052 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,945 | Aug 26, 2004 | — | — |
| Hudspeth 1 #942-435-37053 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,750 | Aug 26, 2004 | — | — |
| Mayfield 34 #1442-435-37054 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,455 | Aug 26, 2004 | — | — |
| Mayfield 34 #1842-435-37055 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,400 | Aug 26, 2004 | — | — |
| Mayfield 40 #1342-435-37050 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,400 | Aug 25, 2004 | — | — |
| Mayfield 40 #1442-435-37051 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,500 | Aug 25, 2004 | — | — |
| Mayfield 34 #1742-435-37047 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,400 | Aug 23, 2004 | — | — |
| Mayfield 34 #1642-435-37048 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,550 | Aug 23, 2004 | — | — |
| Mayfield 34 #1942-435-37049 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,250 | Aug 23, 2004 | — | — |
| Hill-Fawcett Randee Trust D #242-435-37046 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,700 | Aug 19, 2004 | — | — |
| Simmons 71 #742-435-37044 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,872 | Aug 18, 2004 | — | — |
| Brown/Whitehead 2 #5042-435-37045 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,954 | Aug 18, 2004 | — | — |
| Davis E #1442-435-37041 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,202 | Aug 17, 2004 | — | — |
| Deberry #1642-435-37042 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,230 | Aug 17, 2004 | — | — |
| Brown/Whitehead 2 #4842-435-37043 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,950 | Aug 17, 2004 | — | — |
| Wilson Duke #161342-435-37036 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,504 | Aug 16, 2004 | — | — |
| Wilson Duke #161442-435-37037 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,619 | Aug 16, 2004 | — | — |
| Wilson Duke #321342-435-37038 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,823 | Aug 16, 2004 | — | — |
| Wilson Duke #321542-435-37039 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,923 | Aug 16, 2004 | — | — |
| Hill-Fawcett Randee Trust E #442-435-37040 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,600 | Aug 16, 2004 | — | — |
| Hudspeth 1017 #142-435-37033 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,925 | Aug 13, 2004 | — | — |
| Kirby 184 #842-435-37034 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,865 | Aug 13, 2004 | — | — |
| Kirby 1 #1342-435-37035 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 7,855 | Aug 13, 2004 | — | — |