| Espy 57 #1442-435-38861 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 5,975 | Feb 8, 2008 | — | — |
| Espy 56 #1842-435-38864 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,125 | Feb 8, 2008 | — | — |
| Espy 57 #1742-435-38865 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 6,300 | Feb 8, 2008 | — | — |
| Espy 56 #2142-435-38868 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,000 | Feb 8, 2008 | — | — |
| Nobles Ranch a #342-435-38831 | Upp Operating LLC only | Sutton, TXWhitehead (Strawn) | PluggedGas | 9,650 | Feb 7, 2008 | — | — |
| Espy 57 #1642-435-38863 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,079 | Feb 7, 2008 | — | — |
| Espy 56 #1942-435-38866 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 6,350 | Feb 7, 2008 | — | — |
| Espy 56 #2042-435-38867 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,061 | Feb 7, 2008 | — | — |
| Jones Ranch 156 #642-435-38860 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 7,553 | Feb 6, 2008 | — | — |
| Thorp #190242-435-38859 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | Temporarily abandonedGas | 10,515 | Feb 5, 2008 | — | — |
| Shurley RR 1C #742-435-38833 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,350 | Feb 4, 2008 | — | — |
| Jones Ranch #30942-435-38854 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,978 | Feb 4, 2008 | — | — |
| Jones Ranch #31042-435-38855 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,108 | Feb 4, 2008 | — | — |
| Shannon 52 #2142-435-38856 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,025 | Feb 4, 2008 | — | — |
| Shannon 52 #2242-435-38857 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,025 | Feb 4, 2008 | — | — |
| Davis F #1942-435-38852 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | Temporarily abandonedGas | 5,842 | Feb 1, 2008 | — | — |
| Brown-Whitehead 41 #542-435-38817 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 9,400 | Jan 30, 2008 | — | — |
| Brown-Whitehead 41 #442-435-38823 | Upp Operating LLC only | Sutton, TXWhitehead (Strawn) | ActiveGas | 9,400 | Jan 30, 2008 | — | — |
| Kelly 125 #3342-435-38847 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,675 | Jan 25, 2008 | — | — |
| Kelly 125 #3542-435-38848 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,892 | Jan 25, 2008 | — | — |
| Davis #2142-435-38853 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,225 | Jan 25, 2008 | — | — |
| Kelly 125 #3142-435-38842 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,880 | Jan 24, 2008 | — | — |
| Kelly 125 #3042-435-38844 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,989 | Jan 24, 2008 | — | — |
| Kelly 125 #3242-435-38845 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,732 | Jan 24, 2008 | — | — |
| Kelly 124 #3242-435-38846 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,775 | Jan 24, 2008 | — | — |
| Kelly 124 #2942-435-38849 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,625 | Jan 24, 2008 | — | — |
| Shannon 51 #1842-435-38850 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,025 | Jan 24, 2008 | — | — |
| Shannon 51 #1742-435-38851 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,075 | Jan 24, 2008 | — | — |
| Bloodworth 7 #842-435-38813 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 8,600 | Jan 23, 2008 | — | — |
| Morriss 62 #742-435-38843 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,860 | Jan 23, 2008 | — | — |
| Ward John a #942-435-38838 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,616 | Jan 22, 2008 | — | — |
| Kelly 125 #2842-435-38840 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,975 | Jan 22, 2008 | — | — |
| Kelly 125 #2942-435-38841 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,863 | Jan 22, 2008 | — | — |
| Whitehead 6 #342-435-38820 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 9,450 | Jan 17, 2008 | — | — |
| Whitehead 6 #542-435-38821 | Upp Operating LLC only | Sutton, TXWhitehead (Strawn) | ActiveGas | 9,093 | Jan 17, 2008 | — | — |
| Whitehead 6 #442-435-38822 | Upp Operating LLC only | Sutton, TXWhitehead (Strawn) | ActiveGas | 9,200 | Jan 17, 2008 | — | — |
| Whitehead 6 #742-435-38825 | Upp Operating LLC only | Sutton, TXWhitehead (Strawn) | ActiveGas | 9,200 | Jan 17, 2008 | — | — |
| Ward John a #1042-435-38834 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,928 | Jan 17, 2008 | — | — |
| Morriss 63 #842-435-38839 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 5,925 | Jan 17, 2008 | — | — |
| Ward 114 #2542-435-38835 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 7,900 | Jan 15, 2008 | — | — |
| Mayer Ranch 35 #1042-435-38837 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,625 | Jan 15, 2008 | — | — |
| Wilson Duke 171 #1842-435-38783 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,550 | Jan 14, 2008 | — | — |
| Wilson Duke 171 #1942-435-38784 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,526 | Jan 14, 2008 | — | — |
| Wilson Duke 171 #2042-435-38785 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,900 | Jan 14, 2008 | — | — |
| Wilson Duke 171 #2142-435-38786 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,635 | Jan 14, 2008 | — | — |
| Wilson Duke 171 #2242-435-38787 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,650 | Jan 14, 2008 | — | — |
| Wilson Duke 171 #2342-435-38788 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,521 | Jan 14, 2008 | — | — |
| Wilson Duke 171 #2442-435-38790 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,574 | Jan 14, 2008 | — | — |
| Wilson Duke 171 #2542-435-38791 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,400 | Jan 14, 2008 | — | — |
| Wilson Duke 171 #2642-435-38792 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,920 | Jan 14, 2008 | — | — |