| Mrs May M Ray #542-435-39213 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 9,455 | Sep 15, 2009 | — | — |
| Hill-May M Ray I #342-435-39212 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | PluggedGas | 9,550 | Sep 14, 2009 | — | — |
| Simmons 72 #1942-435-39211 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,150 | Aug 28, 2009 | — | — |
| Wilson Duke 176 #1642-435-39210 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,850 | Aug 27, 2009 | — | — |
| Mayer Ranch 36 #742-435-39206 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,700 | Aug 20, 2009 | — | — |
| Lancaster 3 #642-435-39207 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,609 | Aug 20, 2009 | — | — |
| Lancaster 3 #742-435-39208 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,605 | Aug 20, 2009 | — | — |
| Nicks Gerald 8 #742-435-39209 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,800 | Aug 20, 2009 | — | — |
| Hill-Vanderstucken, Joe M. #542-435-39205 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 8,900 | Aug 18, 2009 | — | — |
| Keene C #342-435-39204 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,824 | Aug 13, 2009 | — | — |
| Mayer #5842-435-39202 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,500 | Aug 4, 2009 | — | — |
| Simmons 73 #1342-435-39203 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,100 | Aug 4, 2009 | — | — |
| Shurley #14842-435-39201 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,157 | Aug 3, 2009 | — | — |
| Mayer Minnie H #1042-435-39199 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,350 | Jul 29, 2009 | — | — |
| Mayer Minnie H #942-435-39200 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,197 | Jul 29, 2009 | — | — |
| Shurley 110 #2242-435-39187 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,954 | Jul 24, 2009 | — | — |
| Wilson Duke 176 #1342-435-39194 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,668 | Jul 23, 2009 | — | — |
| Mayer Edwin S. Jr. K #1242-435-39196 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,200 | Jul 23, 2009 | — | — |
| Collier Shurley #2142-435-39197 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,216 | Jul 23, 2009 | — | — |
| Collier Shurley #2042-435-39198 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,310 | Jul 23, 2009 | — | — |
| Wilson Duke #175342-435-39193 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,620 | Jul 21, 2009 | — | — |
| Shurley 110 #2542-435-39189 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,803 | Jul 17, 2009 | — | — |
| Mayer 17 #1142-435-39190 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,600 | Jul 16, 2009 | — | — |
| Mayer 1028 #342-435-39192 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,350 | Jul 15, 2009 | — | — |
| Jones Ranch 157 #342-435-39191 | Upp Operating LLC only | Sutton, TXSawyer (Leonard) | ActiveGas | 3,500 | Jul 14, 2009 | — | — |
| Mayer 18 #942-435-39186 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,352 | Jul 8, 2009 | — | — |
| Shurley 110 #2642-435-39188 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,910 | Jul 8, 2009 | — | — |
| Wilson Duke 176 #1242-435-39185 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,600 | Jul 3, 2009 | — | — |
| Wilson Duke #177842-435-39184 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,721 | Jul 2, 2009 | — | — |
| Epps 48 #542-435-39180 | Highmount Expl & Prod Texas LLC only | Sutton, TXSawyer (Canyon) | PluggedGas | 7,650 | Jun 26, 2009 | — | — |
| Wilson Duke 183 #942-435-39182 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 9,000 | Jun 25, 2009 | — | — |
| Hill-Ray May E #342-435-39183 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 9,400 | Jun 24, 2009 | — | — |
| Cauthorn 17 #542-435-39181 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,272 | Jun 17, 2009 | — | — |
| Morriss 63 #9SW42-435-39179 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 8,250 | Jun 12, 2009 | — | — |
| Cauthorn Ranch 134 #442-435-39177 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,200 | Jun 8, 2009 | — | — |
| Cauthorn Ranch 26 #1__42-435-39178 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Plugged | 8,650 | Jun 8, 2009 | — | — |
| Mayer Ranch #14__42-435-39176 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Plugged | 8,850 | May 13, 2009 | — | — |
| Richardson 134 #142-435-32207 | American Exploration Company only | Sutton, TXSawyer (Canyon) | PluggedGas | 7,500 | May 5, 2009 | — | — |
| Nicks Gerald 8 #642-435-39175 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,593 | May 4, 2009 | — | — |
| Ward 127 #2042-435-39078 | Upp Operating LLC only | Sutton, TXKelley (Ellenburger) | ActiveGas | 8,460 | Apr 27, 2009 | — | — |
| Epps H. C. #103842-435-30359 | Highmount Expl & Prod Texas LLC only | Sutton, TXHolman Ranch N (Penn) | PluggedGas | 8,000 | Apr 17, 2009 | — | — |
| Harrison D.J. #1__42-435-00090 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Plugged | 8,220 | Apr 14, 2009 | — | — |
| Mayer Ranch 36 #442-435-39173 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,492 | Apr 6, 2009 | — | — |
| McMillian, W.B. "10" #1842-435-39174 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 7,250 | Mar 26, 2009 | — | — |
| Jones Ranch 157 #2__42-435-39170 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Plugged | 7,750 | Mar 12, 2009 | — | — |
| Cauthorn 17 #442-435-39172 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,730 | Feb 13, 2009 | — | — |
| Shurley #14942-435-39164 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,208 | Feb 6, 2009 | — | — |
| Stewart #31942-435-39171 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 4,850 | Feb 6, 2009 | — | — |
| Friess 8 #642-435-39168 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 6,250 | Feb 5, 2009 | — | — |
| Friess 8 #542-435-39169 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 6,250 | Feb 5, 2009 | — | — |