| Canyon Ranch #1010S42-435-38322 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,221 | Feb 23, 2007 | — | — |
| Canyon Ranch #1011S42-435-38323 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 4,600 | Feb 23, 2007 | — | — |
| Canyon Ranch #1012S42-435-38328 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 4,900 | Feb 23, 2007 | — | — |
| Acu #5 HHZ42-251-31535 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,631 | Feb 22, 2007 | — | — |
| Acu #4 HHZ42-251-31533 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,665 | Feb 21, 2007 | — | — |
| Bowerman a #1 HHZ42-251-31534 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,535 | Feb 21, 2007 | — | — |
| Richardson 4 #1042-435-38311 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,450 | Feb 21, 2007 | — | — |
| Canyon Ranch 126 #17S42-435-38318 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,500 | Feb 21, 2007 | — | — |
| Canyon Ranch 126 #18S42-435-38319 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,500 | Feb 21, 2007 | — | — |
| Acu #3 HHZ42-251-31531 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,649 | Feb 20, 2007 | — | — |
| Acu #2 HHZ42-251-31532 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,722 | Feb 20, 2007 | — | — |
| Joe Friend Estate 34 #342-105-40235 | Upp Operating LLC | Crockett, TXSawyer (Canyon) | Temporarily abandonedGas | 9,400 | Feb 16, 2007 | — | — |
| Canyon Ranch 207 #10S42-435-38315 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,700 | Feb 16, 2007 | — | — |
| Canyon Ranch 207 #13S42-435-38316 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,700 | Feb 16, 2007 | — | — |
| Canyon Ranch 207 #9S42-435-38317 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,711 | Feb 16, 2007 | — | — |
| University 54-17 #442-413-32438 | Upp Operating LLC | Schleicher, TXOzona NE. (Canyon 7520) | ActiveGas | 8,248 | Feb 15, 2007 | — | — |
| Shurley RR 1A #1442-435-38313 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,024 | Feb 15, 2007 | — | — |
| Mittel #150142-435-38314 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 7,106 | Feb 15, 2007 | — | — |
| Reinhardt 6 #1442-435-38312 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,450 | Feb 14, 2007 | — | — |
| Duke Wilson 188 #1842-435-38262 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,812 | Feb 13, 2007 | — | — |
| Duke Wilson 189 #2042-435-38264 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,950 | Feb 13, 2007 | — | — |
| Duke Wilson 189 #2342-435-38265 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,630 | Feb 13, 2007 | — | — |
| Wilson Duke 188 #2442-435-38259 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 9,150 | Feb 12, 2007 | — | — |
| Duke Wilson 172 #1742-435-38260 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,900 | Feb 12, 2007 | — | — |
| Duke Wilson 172 #2042-435-38261 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,900 | Feb 12, 2007 | — | — |
| Wilson Duke 188 #2042-435-38263 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,809 | Feb 12, 2007 | — | — |
| Wilson Duke 189 #2542-435-38270 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,809 | Feb 12, 2007 | — | — |
| Jones Ranch #155242-435-38309 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 7,545 | Feb 12, 2007 | — | — |
| Jones Ranch #155142-435-38310 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 7,229 | Feb 12, 2007 | — | — |
| Rayburn Unit #6HHZ42-251-31504 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 8,320 | Feb 10, 2007 | — | — |
| Rayburn Unit #5HHZ42-251-31499 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,141 | Feb 9, 2007 | — | — |
| Barron #3 HHZ42-251-31500 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,552 | Feb 9, 2007 | — | — |
| Vanderstucken 65 #942-435-38308 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 4,250 | Feb 8, 2007 | — | — |
| Little Buddy #2 HHZ42-251-31488 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 7,516 | Feb 6, 2007 | — | — |
| Rayburn Unit #4HHZ42-251-31489 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,137 | Feb 6, 2007 | — | — |
| Rousselot Ranch a #11342-413-32435 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | ActiveGas | 8,500 | Feb 6, 2007 | — | — |
| Canyon Ranch 2 #3S42-435-38307 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 4,700 | Feb 6, 2007 | — | — |
| Beil #5 HHZ42-251-31484 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,892 | Feb 5, 2007 | — | — |
| Clark #3HHZ42-251-31487 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,987 | Feb 5, 2007 | — | — |
| Reinhardt 6 #1542-435-38305 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,350 | Feb 5, 2007 | — | — |
| Brown-Johnston #1HHZ42-251-31483 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,968 | Feb 2, 2007 | — | — |
| Sledge Sisters #2HHZ42-251-31478 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 1,729 | Feb 1, 2007 | — | — |
| Sledge Sisters #3 HHZ42-251-31480 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,824 | Feb 1, 2007 | — | — |
| Sledge Sisters #1HHZ42-251-31475 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,959 | Jan 31, 2007 | — | — |
| Richardson 6 #742-435-38303 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,430 | Jan 31, 2007 | — | — |
| Reed 116 #2842-435-38293 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,541 | Jan 30, 2007 | — | — |
| Reed 116 #2742-435-38295 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,688 | Jan 30, 2007 | — | — |
| Kelly 115 #2442-435-38296 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,625 | Jan 30, 2007 | — | — |
| Kelly 115 #2642-435-38297 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,460 | Jan 30, 2007 | — | — |
| Kelly 115 #2542-435-38298 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,623 | Jan 30, 2007 | — | — |