| Mayfield 46 #2642-435-39098 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,450 | Oct 3, 2008 | — | — |
| Mayfield 46 #2942-435-39099 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,430 | Oct 3, 2008 | — | — |
| Mayfield 46 #3042-435-39100 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,392 | Oct 3, 2008 | — | — |
| Mayfield 40 #2242-435-39101 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,421 | Oct 3, 2008 | — | — |
| Mayfield 40 #2442-435-39103 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,340 | Oct 3, 2008 | — | — |
| Mayfield 40 #2342-435-39104 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,463 | Oct 3, 2008 | — | — |
| Mitchell #80342-137-31987 | Upp Operating LLC | Edwards, TXSawyer (Canyon) | ActiveGas | 5,936 | Oct 2, 2008 | — | — |
| Wilson #8HHZ42-251-33322 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,697 | Oct 2, 2008 | — | — |
| Pfluger 85 #2142-435-39093 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,985 | Oct 2, 2008 | — | — |
| Jones Ranch 157 #142-435-39095 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,303 | Oct 1, 2008 | — | — |
| Ryan #220642-413-32562 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 8,501 | Sep 30, 2008 | — | — |
| Simmons 3 #1142-435-39094 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,208 | Sep 30, 2008 | — | — |
| Powell 3 #242-413-32561 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | ActiveGas | 8,388 | Sep 26, 2008 | — | — |
| Canyon Ranch #2164S42-435-39090 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,925 | Sep 26, 2008 | — | — |
| Nicks Gerald 8 #442-435-39091 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,608 | Sep 26, 2008 | — | — |
| Lancaster 185 #442-435-39092 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,218 | Sep 26, 2008 | — | — |
| Canyon Ranch #2073S42-435-39089 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,236 | Sep 25, 2008 | — | — |
| Page #4HHZ42-251-33296 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,364 | Sep 24, 2008 | — | — |
| Page #1HHZ42-251-33294 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,429 | Sep 23, 2008 | — | — |
| University 54 17 #742-413-32559 | Upp Operating LLC | Schleicher, TXOzona NE. (Canyon 7520) | ActiveGas | 8,330 | Sep 23, 2008 | — | — |
| University 54 17 #542-413-32560 | Upp Operating LLC | Schleicher, TXOzona NE. (Canyon 7520) | ActiveGas | 8,365 | Sep 23, 2008 | — | — |
| Meador 57 #742-413-32558 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | ActiveGas | 8,050 | Sep 19, 2008 | — | — |
| Stewart #301642-435-39086 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,514 | Sep 17, 2008 | — | — |
| Stewart #301542-435-39087 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,522 | Sep 17, 2008 | — | — |
| Cusenbary 58 #1042-435-39084 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,020 | Sep 16, 2008 | — | — |
| Stewart #301342-435-39085 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,521 | Sep 16, 2008 | — | — |
| Stewart #301242-435-39088 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,519 | Sep 16, 2008 | — | — |
| Brindley #6HHZ42-251-33272 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,361 | Sep 15, 2008 | — | — |
| Brindley #7HHZ42-251-33273 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,199 | Sep 15, 2008 | — | — |
| Brindley #8HHZ42-251-33274 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,308 | Sep 15, 2008 | — | — |
| Brindley #9HHZ42-251-33275 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,199 | Sep 15, 2008 | — | — |
| Canyon Ranch SWD #11542-435-39081 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 8,200 | Sep 15, 2008 | — | — |
| Atkins 119 #3X42-413-32554 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 7,300 | Sep 12, 2008 | — | — |
| Simmons 72 #1842-435-39075 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,300 | Sep 12, 2008 | — | — |
| Broyles a #2HHZ42-221-31314 | Upp Operating LLC | Hood, TXNewark East (Barnett Shale) | ActiveGas | 6,094 | Sep 11, 2008 | — | — |
| Simmons 71 #1742-435-39077 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,300 | Sep 10, 2008 | — | — |
| Simmons 71 #1542-435-39079 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,300 | Sep 10, 2008 | — | — |
| Simmons 72 #1742-435-39080 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,350 | Sep 10, 2008 | — | — |
| Broyles Unit a #4HHZ42-221-31685 | Upp Operating LLC | Hood, TXNewark East (Barnett Shale) | ActiveGas | 6,144 | Sep 9, 2008 | — | — |
| Bloodworth 140 #942-435-39069 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,510 | Sep 9, 2008 | — | — |
| University 56 19 #842-105-40836 | Upp Operating LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,750 | Sep 8, 2008 | — | — |
| Broyles Unit a #3HHZ42-221-31684 | Upp Operating LLC | Hood, TXNewark East (Barnett Shale) | ActiveGas | 6,047 | Sep 8, 2008 | — | — |
| Simmons 71 #1642-435-39076 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,300 | Sep 6, 2008 | — | — |
| University 56 19 #542-105-40827 | Upp Operating LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,750 | Sep 4, 2008 | — | — |
| Jeffers 28 B #542-413-32538 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 8,477 | Sep 4, 2008 | — | — |
| Ward 127 #2342-435-38991 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,443 | Sep 4, 2008 | — | — |
| Meckel a #7442-435-39073 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,518 | Sep 4, 2008 | — | — |
| Southard Farms #3HHZ42-251-33247 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,925 | Sep 3, 2008 | — | — |
| Mayer Ranch 41 #342-435-39072 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,625 | Sep 3, 2008 | — | — |
| Mayer Ranch 41 #442-435-39074 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,700 | Sep 3, 2008 | — | — |