| Reed 116 #2642-435-38299 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,550 | Jan 30, 2007 | — | — |
| Reed 116 #2442-435-38300 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,543 | Jan 30, 2007 | — | — |
| Kelly 115 #2342-435-38291 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,624 | Jan 29, 2007 | — | — |
| Jones 118 #2742-435-38289 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,423 | Jan 26, 2007 | — | — |
| Jones 118 #2642-435-38290 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,421 | Jan 26, 2007 | — | — |
| Clayton 2 #342-105-40210 | Upp Operating LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,975 | Jan 24, 2007 | — | — |
| Clayton 7 #242-105-40211 | Upp Operating LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,950 | Jan 24, 2007 | — | — |
| Fowler #2 HHZ42-251-31459 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,982 | Jan 24, 2007 | — | — |
| Fowler #3HHZ42-251-31460 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,983 | Jan 24, 2007 | — | — |
| Fowler #4 HHZ42-251-31461 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,833 | Jan 24, 2007 | — | — |
| Hill-Rousselot C #442-413-32433 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | ActiveGas | 8,500 | Jan 24, 2007 | — | — |
| Finder #7HHZ42-251-31437 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,108 | Jan 22, 2007 | — | — |
| Ferguson Foundation #9HHZ42-251-31438 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,240 | Jan 19, 2007 | — | — |
| Morriss Bros. D #442-435-38252 | Upp Operating LLC | Sutton, TXWhitehead (Strawn) | ActiveGas | 9,600 | Jan 19, 2007 | — | — |
| Canyon Ranch 113 #11E42-137-31869 | Upp Operating LLC | Edwards, TXSawyer (Canyon) | ActiveGas | 6,800 | Jan 12, 2007 | — | — |
| Canyon Ranch #1139E42-137-31870 | Upp Operating LLC | Edwards, TXSawyer (Canyon) | ActiveGas | 6,808 | Jan 12, 2007 | — | — |
| Canyon Ranch #1064E42-137-31871 | Upp Operating LLC | Edwards, TXSawyer (Canyon) | Temporarily abandonedGas | 7,009 | Jan 12, 2007 | — | — |
| Canyon Ranch #1063E42-137-31872 | Upp Operating LLC | Edwards, TXSawyer (Canyon) | ActiveGas | 6,893 | Jan 12, 2007 | — | — |
| Maples #1 HHZ42-251-31429 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,686 | Jan 12, 2007 | — | — |
| Bransom Unit #1HHZ42-251-31430 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,208 | Jan 12, 2007 | — | — |
| Kemp a #1HHZ42-251-31433 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 7,903 | Jan 12, 2007 | — | — |
| Kemp a #2HHZ42-251-31434 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 7,881 | Jan 12, 2007 | — | — |
| Finder #6HHZ42-251-31436 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 8,108 | Jan 12, 2007 | — | — |
| Canyon Ranch 207 #17S42-435-38274 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,821 | Jan 12, 2007 | — | — |
| Canyon Ranch #2153S42-435-38279 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,817 | Jan 12, 2007 | — | — |
| University 56-22 #442-105-40198 | Upp Operating LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,850 | Jan 11, 2007 | — | — |
| University 56-22 #342-105-40199 | Upp Operating LLC | Crockett, TXOzona NE. (Canyon 7520) | ActiveGas | 8,850 | Jan 11, 2007 | — | — |
| Richardson 135 #1142-435-38244 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,400 | Jan 11, 2007 | — | — |
| Cusenbary 58 #1142-435-38283 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,950 | Jan 11, 2007 | — | — |
| Cauthorn 86 #842-435-38284 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,564 | Jan 11, 2007 | — | — |
| Galbreath 91 #1342-435-38271 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,415 | Jan 10, 2007 | — | — |
| Morriss 83 #942-435-38281 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,402 | Jan 10, 2007 | — | — |
| Galbreath 65 #1542-435-38247 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,125 | Jan 8, 2007 | — | — |
| Thomson #842-435-38275 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,217 | Jan 8, 2007 | — | — |
| Thomson D #742-435-38276 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | Temporarily abandonedGas | 6,377 | Jan 8, 2007 | — | — |
| Thomson C #1342-435-38278 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,219 | Jan 8, 2007 | — | — |
| Epps H.C. 49 #242-435-38280 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,000 | Jan 8, 2007 | — | — |
| Galbreath 66 #1842-435-38253 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,134 | Jan 5, 2007 | — | — |
| Galbreath 91 #1442-435-38255 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,300 | Jan 5, 2007 | — | — |
| Simmons Ranch #11242-435-38256 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,300 | Jan 5, 2007 | — | — |
| Simmons Ranch #11342-435-38257 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,250 | Jan 5, 2007 | — | — |
| Cauthorn 86 #942-435-38272 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,550 | Jan 5, 2007 | — | — |
| Epps H.C. 49 #342-435-38273 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,000 | Jan 5, 2007 | — | — |
| Reed 100 #2742-435-38246 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,323 | Jan 4, 2007 | — | — |
| Reed 100 #3142-435-38248 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,295 | Jan 4, 2007 | — | — |
| Reed 100 #3042-435-38250 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,350 | Jan 4, 2007 | — | — |
| Reed 100 #2842-435-38251 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,325 | Jan 4, 2007 | — | — |
| Mittel Ben #1442-435-38266 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,375 | Jan 4, 2007 | — | — |
| Mittel Ben #1342-435-38267 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | Temporarily abandonedGas | 6,600 | Jan 4, 2007 | — | — |
| Galbreath 78 #1242-435-38268 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,200 | Jan 4, 2007 | — | — |