| Lancaster 3 #742-435-39208 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,605 | Aug 20, 2009 | — | — |
| Nicks Gerald 8 #742-435-39209 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,800 | Aug 20, 2009 | — | — |
| Canyon Ranch 112 #9E42-137-32022 | Upp Operating LLC | Edwards, TXSawyer (Canyon) | ActiveGas | 7,150 | Aug 13, 2009 | — | — |
| Keene C #342-435-39204 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,824 | Aug 13, 2009 | — | — |
| Canyon Ranch #9015E42-137-32024 | Upp Operating LLC | Edwards, TXSawyer (Canyon) | ActiveGas | 7,350 | Aug 7, 2009 | — | — |
| Kolar #11HHZ42-251-33728 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,816 | Aug 5, 2009 | — | — |
| Uta C Unit #16HHZ42-439-34507 | Upp Operating LLC | Tarrant, TXNewark East (Barnett Shale) | ActiveGas | 8,396 | Aug 5, 2009 | — | — |
| Mayer #5842-435-39202 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,500 | Aug 4, 2009 | — | — |
| Simmons 73 #1342-435-39203 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,100 | Aug 4, 2009 | — | — |
| Shurley #14842-435-39201 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,157 | Aug 3, 2009 | — | — |
| Mayer Minnie H #1042-435-39199 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,350 | Jul 29, 2009 | — | — |
| Mayer Minnie H #942-435-39200 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,197 | Jul 29, 2009 | — | — |
| Shurley 110 #2242-435-39187 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,954 | Jul 24, 2009 | — | — |
| Wilson Duke 176 #1342-435-39194 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,668 | Jul 23, 2009 | — | — |
| Mayer Edwin S. Jr. K #1242-435-39196 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,200 | Jul 23, 2009 | — | — |
| Collier Shurley #2142-435-39197 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,216 | Jul 23, 2009 | — | — |
| Collier Shurley #2042-435-39198 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,310 | Jul 23, 2009 | — | — |
| Evans/Randle #4HHZ42-251-33714 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,522 | Jul 21, 2009 | — | — |
| Wilson Duke #175342-435-39193 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,620 | Jul 21, 2009 | — | — |
| Evans/Randle #2HHZ42-251-33711 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,525 | Jul 20, 2009 | — | — |
| Evans/Randle #3HHZ42-251-33712 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,467 | Jul 20, 2009 | — | — |
| Shurley 110 #2542-435-39189 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,803 | Jul 17, 2009 | — | — |
| Mayer 17 #1142-435-39190 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,600 | Jul 16, 2009 | — | — |
| Mayer 1028 #342-435-39192 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,350 | Jul 15, 2009 | — | — |
| Jones Ranch 157 #342-435-39191 | Upp Operating LLC | Sutton, TXSawyer (Leonard) | ActiveGas | 3,500 | Jul 14, 2009 | — | — |
| Gallagher #6HHZ42-251-33702 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,466 | Jul 9, 2009 | — | — |
| Mayer 18 #942-435-39186 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,352 | Jul 8, 2009 | — | — |
| Shurley 110 #2642-435-39188 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,910 | Jul 8, 2009 | — | — |
| Wilson Duke 176 #1242-435-39185 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,600 | Jul 3, 2009 | — | — |
| Wilson Duke #177842-435-39184 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,721 | Jul 2, 2009 | — | — |
| Wilson Duke 183 #942-435-39182 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 9,000 | Jun 25, 2009 | — | — |
| H F Alfrey Unit #1HHZ42-251-33694 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,650 | Jun 24, 2009 | — | — |
| H F Alfrey Unit #2HHZ42-251-33695 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,635 | Jun 24, 2009 | — | — |
| Core Lab #8HHZ42-251-33696 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,571 | Jun 24, 2009 | — | — |
| Hill-Ray May E #342-435-39183 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 9,400 | Jun 24, 2009 | — | — |
| Cauthorn 17 #542-435-39181 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,272 | Jun 17, 2009 | — | — |
| Ledezma #2HHZ42-251-33637 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,850 | Jun 16, 2009 | — | — |
| Ledezma Unit #3HHZ42-251-33638 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,006 | Jun 16, 2009 | — | — |
| Ledezma #4HHZ42-251-33640 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,886 | Jun 16, 2009 | — | — |
| Mayer Edwin S. Jr. 27 #242-413-32592 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 8,760 | Jun 12, 2009 | — | — |
| U.S. Lime #30HHZ42-251-33670 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,337 | Jun 9, 2009 | — | — |
| US Lime #31HHZ42-251-33671 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,311 | Jun 9, 2009 | — | — |
| US Lime #32HHZ42-251-33672 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,260 | Jun 9, 2009 | — | — |
| Hill-Mayer Edwin S. Jr. OO #242-413-32591 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | ActiveGas | 8,300 | Jun 8, 2009 | — | — |
| Cauthorn Ranch 134 #442-435-39177 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,200 | Jun 8, 2009 | — | — |
| Rolling Hills a Unit #1HHZ42-439-34390 | Upp Operating LLC | Tarrant, TXNewark East (Barnett Shale) | ActiveGas | 8,361 | Jun 4, 2009 | — | — |
| Rolling Hills B Unit #2HHZ42-439-34391 | Upp Operating LLC | Tarrant, TXNewark East (Barnett Shale) | ActiveGas | 8,410 | Jun 4, 2009 | — | — |
| Rolling Hills a Unit #3HHZ42-439-34392 | Upp Operating LLC | Tarrant, TXNewark East (Barnett Shale) | ActiveGas | 8,520 | Jun 4, 2009 | — | — |
| U.S. Lime #29HHZ42-251-32915 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,225 | May 27, 2009 | — | — |
| U.S. Lime #28HHZ42-251-32916 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,227 | May 27, 2009 | — | — |