| King #7HHZ42-251-31647 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,346 | Sep 7, 2007 | — | — |
| Clark #4HHZ42-251-32206 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,862 | Sep 6, 2007 | — | — |
| Valliant L. R. #2942-435-38643 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 9,000 | Sep 6, 2007 | — | — |
| Valliant L. R. #3042-435-38644 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,855 | Sep 6, 2007 | — | — |
| Hill-Mayer Minnie HC #642-435-38647 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,300 | Sep 6, 2007 | — | — |
| Mittel R. H. #442-435-38687 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 7,214 | Sep 6, 2007 | — | — |
| Mittel R. H. #542-435-38688 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 7,225 | Sep 6, 2007 | — | — |
| Mittel R. H. #842-435-38689 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 7,067 | Sep 6, 2007 | — | — |
| Mayer Edwin S. Jr. #110342-435-34908 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,200 | Sep 4, 2007 | — | — |
| Shurley RR 1A #942-435-38633 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,284 | Sep 4, 2007 | — | — |
| Shurley RR 1A #1042-435-38634 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,850 | Sep 4, 2007 | — | — |
| Shurley RR 1A #1142-435-38635 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,975 | Sep 4, 2007 | — | — |
| Shurley RR 1A #1342-435-38637 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,575 | Sep 4, 2007 | — | — |
| Shurley RR 1A #1542-435-38638 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,814 | Sep 4, 2007 | — | — |
| Shurley RR 1A #1642-435-38639 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 9,050 | Sep 4, 2007 | — | — |
| Martin Unit #5HHZ42-251-32199 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,592 | Aug 31, 2007 | — | — |
| Watkins #2HHZ42-251-32194 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,280 | Aug 30, 2007 | — | — |
| Watkins #3HHZ42-251-32196 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,067 | Aug 30, 2007 | — | — |
| Watkins #4HHZ42-251-32197 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,146 | Aug 30, 2007 | — | — |
| Brown Jack W. A. #342-435-38596 | Upp Operating LLC | Sutton, TXWhitehead (Strawn) | ActiveGas | 9,301 | Aug 30, 2007 | — | — |
| Hill-Mayer Edwin S. Jr. U #642-435-38681 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,200 | Aug 30, 2007 | — | — |
| Hill-Mayer Edwin S. Jr. U #742-435-38682 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,225 | Aug 30, 2007 | — | — |
| Wilson Duke 187 #1842-435-38665 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 9,250 | Aug 29, 2007 | — | — |
| Wilson Duke 187 #2042-435-38666 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 9,400 | Aug 29, 2007 | — | — |
| Canyon Ranch #9218S42-435-38609 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,800 | Aug 28, 2007 | — | — |
| Richardson 4 #1142-435-38667 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,373 | Aug 28, 2007 | — | — |
| Richardson 4 #1242-435-38668 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,381 | Aug 28, 2007 | — | — |
| Richardson 4 #1342-435-38669 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,407 | Aug 28, 2007 | — | — |
| Mayer Ranch EE #290442-435-38670 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,100 | Aug 28, 2007 | — | — |
| Mayer Edwin S. Jr. C #10442-435-38671 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,050 | Aug 28, 2007 | — | — |
| Mayer Ranch EE #290542-435-38672 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,073 | Aug 28, 2007 | — | — |
| Mayer Minnie H. JJ #330342-435-38673 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,198 | Aug 28, 2007 | — | — |
| Hill-Vanderstucken a #742-435-38674 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,623 | Aug 28, 2007 | — | — |
| Hill-Mayer Edwin S. Jr. X #642-435-38677 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,050 | Aug 28, 2007 | — | — |
| Green #3 HHZ42-497-36337 | Upp Operating LLC | Wise, TXNewark East (Barnett Shale) | ActiveGas | 7,147 | Aug 28, 2007 | — | — |
| Martin #2HHZ42-251-31992 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,593 | Aug 27, 2007 | — | — |
| Martin Unit #3HHZ42-251-32008 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,622 | Aug 27, 2007 | — | — |
| Martin #4HHZ42-251-32009 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,566 | Aug 27, 2007 | — | — |
| Mayer 20A #942-435-38485 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,836 | Aug 27, 2007 | — | — |
| Canyon Ranch #8218S42-435-38663 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,530 | Aug 27, 2007 | — | — |
| Stewart Unit #5HHZ42-251-32184 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,426 | Aug 24, 2007 | — | — |
| Moran #1HHZ42-251-32188 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,165 | Aug 24, 2007 | — | — |
| Epps H. C. 38 #1142-435-38675 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,732 | Aug 23, 2007 | — | — |
| Little Buddy #1HHZ42-251-32156 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 7,521 | Aug 22, 2007 | — | — |
| Little Buddy #3HHZ42-251-32157 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 7,388 | Aug 22, 2007 | — | — |
| Little Buddy #5HHZ42-251-32158 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 7,547 | Aug 22, 2007 | — | — |
| Little Buddy #6HHZ42-251-32159 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 7,435 | Aug 20, 2007 | — | — |
| Little Buddy #7HHZ42-251-32160 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,490 | Aug 20, 2007 | — | — |
| Kemp a #4HHZ42-251-32161 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,062 | Aug 20, 2007 | — | — |
| Kemp a #3HHZ42-251-32162 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,298 | Aug 20, 2007 | — | — |