| Genini #312742-435-38966 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,362 | May 19, 2008 | — | — |
| Kemp a #9HHZ42-251-32819 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,011 | May 16, 2008 | — | — |
| Kemp a #11HHZ42-251-32820 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,980 | May 16, 2008 | — | — |
| Kemp a #10HHZ42-251-32821 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,973 | May 16, 2008 | — | — |
| Genini #313242-435-38961 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,450 | May 16, 2008 | — | — |
| Ward 114 #2142-435-38980 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,050 | May 16, 2008 | — | — |
| Ward 114 #2242-435-38981 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,880 | May 16, 2008 | — | — |
| Kemp a #7HHZ42-251-32816 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,921 | May 15, 2008 | — | — |
| Kemp a #8HHZ42-251-32818 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,991 | May 15, 2008 | — | — |
| Genini #312942-435-38956 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,955 | May 15, 2008 | — | — |
| Genini #313042-435-38957 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,329 | May 15, 2008 | — | — |
| Genini #313142-435-38958 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,940 | May 15, 2008 | — | — |
| Cca #2HHZ42-251-32685 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | PluggedGas | 10,000 | May 13, 2008 | — | — |
| Cusenbary 58 #942-435-38979 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,922 | May 8, 2008 | — | — |
| Ryan #220442-413-32520 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 8,700 | May 6, 2008 | — | — |
| Mayer Edwin S. Jr. B 38 #642-435-38977 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,540 | May 6, 2008 | — | — |
| Powell 23 #1142-413-32519 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 8,600 | May 5, 2008 | — | — |
| Little Buddy #12HHZ42-251-32871 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 7,397 | May 1, 2008 | — | — |
| Little Buddy #11HHZ42-251-32881 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 7,556 | May 1, 2008 | — | — |
| Pallmeyer Unit #7HHZ42-251-32430 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 7,746 | Apr 30, 2008 | — | — |
| Pallmeyer #8HHZ42-251-32436 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 7,557 | Apr 30, 2008 | — | — |
| Canyon Ranch #117S42-435-38971 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,401 | Apr 30, 2008 | — | — |
| Mayer 37 #1642-435-38972 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,009 | Apr 29, 2008 | — | — |
| Leonard #6HHZ42-251-32848 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,297 | Apr 28, 2008 | — | — |
| Ferguson Foundation #6HHZ42-251-32869 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,146 | Apr 28, 2008 | — | — |
| University 56-22 #1442-105-40646 | Upp Operating LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,778 | Apr 26, 2008 | — | — |
| Powell 4 #142-413-32518 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 8,400 | Apr 26, 2008 | — | — |
| Jerry Johnson 3.9 #1X42-435-38969 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 9,723 | Apr 26, 2008 | — | — |
| Leonard #5HHZ42-251-32846 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,236 | Apr 25, 2008 | — | — |
| Leonard #4HHZ42-251-32847 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,245 | Apr 25, 2008 | — | — |
| Atkins 119 #142-413-32517 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 7,150 | Apr 22, 2008 | — | — |
| Canyon Ranch #838X42-435-38934 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,940 | Apr 22, 2008 | — | — |
| Canyon Ranch #312S42-435-38963 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 4,951 | Apr 22, 2008 | — | — |
| Orr Unit #1HZ42-139-30496 | Upp Operating LLC | Ellis, TXNewark East (Barnett Shale) | ActiveGas | 8,465 | Apr 21, 2008 | — | — |
| Dodson #5HHZ42-251-32827 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,359 | Apr 21, 2008 | — | — |
| Kemp a #6HHZ42-251-32815 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,933 | Apr 18, 2008 | — | — |
| Dodson #3HHZ42-251-32824 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,410 | Apr 18, 2008 | — | — |
| Dodson #4HHZ42-251-32825 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,407 | Apr 18, 2008 | — | — |
| Dodson #2HHZ42-251-32826 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,440 | Apr 18, 2008 | — | — |
| Stewart #20442-435-38955 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,512 | Apr 18, 2008 | — | — |
| Stewart #785842-435-38962 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,336 | Apr 18, 2008 | — | — |
| Hill-Mayer Edwin S. Jr. Z #8X42-435-38953 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,025 | Apr 17, 2008 | — | — |
| Mayer Edwin S. Jr. #100442-435-38946 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,185 | Apr 16, 2008 | — | — |
| Stewart #30942-435-38954 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,536 | Apr 16, 2008 | — | — |
| Kemp B #8HHZ42-251-32786 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,143 | Apr 14, 2008 | — | — |
| Mittel Ben #2342-435-38951 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 7,150 | Apr 14, 2008 | — | — |
| Epps H. C. 39 #1242-435-38950 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,102 | Apr 11, 2008 | — | — |
| Brown-Johnston #2HHZ42-251-32794 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,053 | Apr 10, 2008 | — | — |
| Bone Ranch #4HHZ42-367-34444 | Upp Operating LLC | Parker, TXNewark East (Barnett Shale) | ActiveGas | 6,560 | Apr 10, 2008 | — | — |
| Bone Ranch #5HHZ42-367-34445 | Upp Operating LLC | Parker, TXNewark East (Barnett Shale) | ActiveGas | 6,667 | Apr 10, 2008 | — | — |