| Kemp a #5HHZ42-251-32164 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,941 | Aug 20, 2007 | — | — |
| Kemp a #14HHZ42-251-32165 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,095 | Aug 20, 2007 | — | — |
| Hill-Mayer Edwin S. Jr. O #642-435-38661 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,075 | Aug 20, 2007 | — | — |
| Milford Investments Unit #3HHZ42-251-32155 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,825 | Aug 18, 2007 | — | — |
| Brown Jack W. A. #742-435-38597 | Upp Operating LLC | Sutton, TXWhitehead (Strawn) | ActiveGas | 9,400 | Aug 17, 2007 | — | — |
| Holman A. D. #260442-435-38662 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,921 | Aug 17, 2007 | — | — |
| University 56-22 #2X42-105-40410 | Upp Operating LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,800 | Aug 15, 2007 | — | — |
| U.S. Lime #12HHZ42-251-32151 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,214 | Aug 14, 2007 | — | — |
| U.S. Lime #13HHZ42-251-32152 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 6,220 | Aug 14, 2007 | — | — |
| Espy 57 #1242-435-38648 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,034 | Aug 14, 2007 | — | — |
| Epps H. C. 38 #1242-435-38657 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,692 | Aug 14, 2007 | — | — |
| King #13HHZ42-251-31688 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,405 | Aug 13, 2007 | — | — |
| Mayer Ranch 35 #642-435-38640 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,430 | Aug 13, 2007 | — | — |
| Epps H.C. 49 #642-435-38652 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,882 | Aug 13, 2007 | — | — |
| Epps H. C. 39 #1342-435-38655 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,674 | Aug 13, 2007 | — | — |
| Epps H. C. #39 #1142-435-38656 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,088 | Aug 13, 2007 | — | — |
| University 56-22 #8X42-105-40383 | Upp Operating LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,800 | Aug 10, 2007 | — | — |
| Stewart #4 HHZ42-251-32135 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,501 | Aug 10, 2007 | — | — |
| Lancaster #22HHZ42-367-34515 | Upp Operating LLC | Parker, TXNewark East (Barnett Shale) | ActiveGas | 6,620 | Aug 10, 2007 | — | — |
| Brown Jack W.A. #842-435-38594 | Upp Operating LLC | Sutton, TXWhitehead (Strawn) | ActiveGas | 9,400 | Aug 9, 2007 | — | — |
| Brown Jack W. A. #642-435-38592 | Upp Operating LLC | Sutton, TXWhitehead (Strawn) | ActiveGas | 9,315 | Aug 8, 2007 | — | — |
| Brown Jack W. A. #442-435-38595 | Upp Operating LLC | Sutton, TXWhitehead (Strawn) | ActiveGas | 9,300 | Aug 8, 2007 | — | — |
| Brown Jack W.A. #542-435-38598 | Upp Operating LLC | Sutton, TXWhitehead (Strawn) | ActiveGas | 9,300 | Aug 8, 2007 | — | — |
| Maples #9HHZ42-251-32118 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,589 | Aug 7, 2007 | — | — |
| Stevenson C Unit #2HHZ42-251-32096 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,162 | Aug 4, 2007 | — | — |
| Stevenson C Unit #3HHZ42-251-32098 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,084 | Aug 4, 2007 | — | — |
| Canyon Ranch 115 #24S42-435-38614 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,803 | Aug 2, 2007 | — | — |
| Stewart 3 #442-435-38615 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,060 | Aug 2, 2007 | — | — |
| Canyon Ranch 115 #22S42-435-38616 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,818 | Aug 2, 2007 | — | — |
| Canyon Ranch 115 #23S42-435-38617 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,878 | Aug 2, 2007 | — | — |
| Stewart 78 1/2 #642-435-38618 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,300 | Aug 2, 2007 | — | — |
| Bloodworth #70542-435-38632 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,225 | Aug 1, 2007 | — | — |
| Kemp D #4HHZ42-251-32066 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,985 | Jul 31, 2007 | — | — |
| Double Diamond #8HHZ42-251-32067 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 6,668 | Jul 31, 2007 | — | — |
| Kemp D #5HHZ42-251-32068 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,904 | Jul 31, 2007 | — | — |
| Kemp D #6HHZ42-251-32069 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,845 | Jul 31, 2007 | — | — |
| Double Diamond #9HHZ42-251-32070 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,919 | Jul 31, 2007 | — | — |
| Storm #1HHZ42-251-32071 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 8,277 | Jul 31, 2007 | — | — |
| River Hills #10HHZ42-251-32072 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,604 | Jul 31, 2007 | — | — |
| Lancaster #11HHZ42-367-34496 | Upp Operating LLC | Parker, TXNewark East (Barnett Shale) | ActiveGas | 6,498 | Jul 31, 2007 | — | — |
| Lancaster #12HHZ42-367-34497 | Upp Operating LLC | Parker, TXNewark East (Barnett Shale) | ActiveGas | 6,547 | Jul 31, 2007 | — | — |
| Lancaster #13HHZ42-367-34498 | Upp Operating LLC | Parker, TXNewark East (Barnett Shale) | ActiveGas | 6,599 | Jul 31, 2007 | — | — |
| Archer SWD #142-435-38631 | Upp Operating LLC | Sutton, TXJ. D. Slade (Miss) | ActiveInjection | 6,816 | Jul 31, 2007 | — | — |
| Nicks Gerald 5 #942-435-38626 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,650 | Jul 30, 2007 | — | — |
| Mittel R. H. #342-435-38628 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,407 | Jul 30, 2007 | — | — |
| Mitchell Tom 4 #642-435-38630 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,550 | Jul 30, 2007 | — | — |
| City of Godley Unit #3HHZ42-251-32055 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,992 | Jul 27, 2007 | — | — |
| Nicks Gerald 5 #242-435-38619 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,755 | Jul 27, 2007 | — | — |
| Nicks Gerald 5 #342-435-38620 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,725 | Jul 27, 2007 | — | — |
| Nicks Gerald 5 #542-435-38622 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | Temporarily abandonedGas | 8,825 | Jul 27, 2007 | — | — |