| Bone Ranch #6HHZ42-367-34716 | Upp Operating LLC | Parker, TXNewark East (Barnett Shale) | ActiveGas | 6,626 | Apr 10, 2008 | — | — |
| Holman #25242-435-38947 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,741 | Apr 10, 2008 | — | — |
| Holman #26742-435-38948 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,558 | Apr 10, 2008 | — | — |
| Orr #2HHZ42-139-30495 | Upp Operating LLC | Ellis, TXNewark East (Barnett Shale) | ActiveGas | 8,350 | Apr 9, 2008 | — | — |
| Orr #3HHZ42-139-30497 | Upp Operating LLC | Ellis, TXNewark East (Barnett Shale) | ActiveGas | 8,564 | Apr 9, 2008 | — | — |
| Orr #4HHZ42-139-30501 | Upp Operating LLC | Ellis, TXNewark East (Barnett Shale) | ActiveGas | 8,373 | Apr 9, 2008 | — | — |
| Kemp B #7HHZ42-251-32785 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,969 | Apr 9, 2008 | — | — |
| Thelma Louise #4HHZ42-251-32787 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,028 | Apr 9, 2008 | — | — |
| Thelma Louise #5HHZ42-251-32788 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,872 | Apr 9, 2008 | — | — |
| Canyon Ranch #1079EX42-137-31951 | Upp Operating LLC | Edwards, TXSawyer (Canyon) | Temporarily abandonedGas | 7,147 | Apr 8, 2008 | — | — |
| Canyon Ranch #8219S42-435-38940 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,552 | Apr 8, 2008 | — | — |
| Canyon Ranch #9319S42-435-38941 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,627 | Apr 8, 2008 | — | — |
| Canyon Ranch #8220S42-435-38944 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,500 | Apr 8, 2008 | — | — |
| Canyon Ranch #9318S42-435-38945 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,624 | Apr 8, 2008 | — | — |
| Storm #2HHZ42-251-32779 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 8,087 | Apr 7, 2008 | — | — |
| Storm #3HHZ42-251-32780 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 8,098 | Apr 7, 2008 | — | — |
| Storm #4HHZ42-251-32782 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 8,234 | Apr 7, 2008 | — | — |
| Canyon Ranch #9321S42-435-38942 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,629 | Apr 7, 2008 | — | — |
| Canyon Ranch #9320S42-435-38943 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,627 | Apr 7, 2008 | — | — |
| Meador 57 #542-413-32515 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 8,050 | Apr 3, 2008 | — | — |
| Lett #1HHZ42-251-32766 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,333 | Apr 2, 2008 | — | — |
| Reed 101 #3242-435-38937 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,325 | Apr 1, 2008 | — | — |
| Stewart #30542-435-38939 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,492 | Apr 1, 2008 | — | — |
| Thelma Louise #1HHZ42-251-32753 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,901 | Mar 31, 2008 | — | — |
| Lett #2HHZ42-251-32760 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,480 | Mar 31, 2008 | — | — |
| Thelma Louise #2HHZ42-251-32754 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,050 | Mar 28, 2008 | — | — |
| Thelma Louise #3HHZ42-251-32755 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,888 | Mar 28, 2008 | — | — |
| Shurley RR IF #842-435-38905 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 9,039 | Mar 28, 2008 | — | — |
| Kelly 115 #2742-435-38923 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,486 | Mar 28, 2008 | — | — |
| Kelly 115 #2842-435-38924 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,425 | Mar 28, 2008 | — | — |
| Kelly 115 #2942-435-38925 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,507 | Mar 28, 2008 | — | — |
| Kelly 115 #3242-435-38926 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,442 | Mar 28, 2008 | — | — |
| Reed 116 #2942-435-38927 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,723 | Mar 28, 2008 | — | — |
| Reed 116 #3042-435-38928 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,574 | Mar 28, 2008 | — | — |
| Reed 116 #3142-435-38929 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,530 | Mar 28, 2008 | — | — |
| Canyon Ranch 207 #25S42-435-38933 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,684 | Mar 28, 2008 | — | — |
| Canyon Ranch 207 #23S42-435-38936 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,810 | Mar 28, 2008 | — | — |
| Lett #4HHZ42-251-32751 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,479 | Mar 27, 2008 | — | — |
| Lett #3HHZ42-251-32752 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,315 | Mar 27, 2008 | — | — |
| Canyon Ranch 207 #22S42-435-38935 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,828 | Mar 27, 2008 | — | — |
| Meador 178 #942-413-32513 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | Temporarily abandonedGas | 7,904 | Mar 25, 2008 | — | — |
| Meador 189 #442-413-32514 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | ActiveGas | 7,914 | Mar 25, 2008 | — | — |
| Steen #9942-435-38914 | Upp Operating LLC | Sutton, TXFawcett (Wolfcamp) | ActiveGas | 5,849 | Mar 25, 2008 | — | — |
| University 57 23 #442-413-32511 | Upp Operating LLC | Schleicher, TXOzona NE. (Canyon 7520) | ActiveGas | 8,300 | Mar 24, 2008 | — | — |
| Kelly 35 #842-435-38893 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,074 | Mar 21, 2008 | — | — |
| Kelly 35 #9X42-435-38894 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,079 | Mar 21, 2008 | — | — |
| Kelly 35 #3A42-435-38895 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,299 | Mar 21, 2008 | — | — |
| Kelly 35 #1342-435-38896 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,951 | Mar 21, 2008 | — | — |
| Nicks Gerald 5 #1142-435-38921 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,820 | Mar 21, 2008 | — | — |
| Genini 31 #2142-435-38878 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,300 | Mar 20, 2008 | — | — |