| Bloodworth 139 #1342-435-39264 | Upp Operating LLC only | Sutton, TXSawyer (Leonard) | ActiveGas | 2,970 | Feb 4, 2010 | — | — |
| Mayer Ranch 41 #742-435-39261 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,675 | Jan 21, 2010 | — | — |
| Mayer Ranch 35 #1542-435-39262 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,733 | Jan 21, 2010 | — | — |
| Sawyer 15 #842-435-39263 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TXSawyer (Canyon) | Not on schedule | 7,700 | Jan 21, 2010 | — | — |
| Fawcett 130 #1342-435-39260 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,304 | Jan 15, 2010 | — | — |
| Becker #30242-435-39258 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,863 | Jan 14, 2010 | — | — |
| Sawyer 15 #742-435-39259 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TXSawyer (Canyon) | Not on schedule | 7,750 | Jan 14, 2010 | — | — |
| Fawcett 130 #1442-435-39257 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,370 | Jan 12, 2010 | — | — |
| Lancaster 155 #1142-435-39256 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TXSawyer (Canyon) | Not on schedule | 6,850 | Jan 11, 2010 | — | — |
| Kelly 125 #3742-435-39253 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,120 | Jan 8, 2010 | — | — |
| Mayer Edwin S. Jr. B 38 #842-435-39255 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,700 | Jan 8, 2010 | — | — |
| Mittel R. H. #1742-435-39249 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 7,060 | Jan 6, 2010 | — | — |
| Sawyer-Jones #140242-435-39252 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,804 | Jan 6, 2010 | — | — |
| Shannon 52 #2342-435-39248 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,160 | Jan 5, 2010 | — | — |
| Lancaster 155 #1042-435-39251 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,670 | Jan 5, 2010 | — | — |
| Sawyer-Jones 190 #1342-435-39250 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 9,000 | Jan 4, 2010 | — | — |
| Diebitsch 70 #1742-435-39247 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,200 | Dec 30, 2009 | — | — |
| Nicks Gerald 5 #1242-435-39246 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,738 | Dec 17, 2009 | — | — |
| Simmons 3 #242-435-39245 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,200 | Dec 10, 2009 | — | — |
| Mittel R. H. #642-435-39244 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 7,050 | Dec 4, 2009 | — | — |
| Simmons 3 #442-435-39238 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,150 | Dec 3, 2009 | — | — |
| Mittel #127242-435-39243 | Upp Operating LLC only | Sutton, TXFawcett (Wolfcamp) | ActiveGas | 6,968 | Dec 3, 2009 | — | — |
| Cauthorn 17 #642-435-39239 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,250 | Dec 2, 2009 | — | — |
| Mayer Ranch 40 #642-435-39240 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,650 | Dec 2, 2009 | — | — |
| Holman #261142-435-39242 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,193 | Dec 2, 2009 | — | — |
| Wilson Duke #341742-435-39241 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,800 | Dec 1, 2009 | — | — |
| Reinhardt 6 #1742-435-39237 | Upp Operating LLC only | Sutton, TXSawyer (Leonard) | ActiveGas | 3,100 | Nov 30, 2009 | — | — |
| Cauthorn Ranch 134 #342-435-39235 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,800 | Nov 25, 2009 | — | — |
| Deberry Heirs #1442-435-39236 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,627 | Nov 25, 2009 | — | — |
| Wilson Duke 177 #1042-435-39234 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 9,100 | Nov 24, 2009 | — | — |
| Mayer Ranch 36 #2__42-435-39233 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Plugged | 8,750 | Nov 23, 2009 | — | — |
| Deberry Heirs #1542-435-39231 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,735 | Nov 18, 2009 | — | — |
| Holman #261042-435-39232 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,096 | Nov 18, 2009 | — | — |
| Mayer Ranch 35 #1642-435-39229 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,713 | Nov 16, 2009 | — | — |
| Holman 25 #342-435-39230 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,103 | Nov 16, 2009 | — | — |
| Mayer Ranch 40 #542-435-39227 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 8,298 | Nov 12, 2009 | — | — |
| Wilson Duke #1537__42-435-39228 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TXSawyer (Canyon) | Plugged | 7,500 | Nov 12, 2009 | — | — |
| Mayer Ranch 35 #1742-435-39226 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,650 | Nov 9, 2009 | — | — |
| Wilson Duke #341642-435-39225 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,840 | Oct 21, 2009 | — | — |
| Shurley #16442-435-39220 | Upp Operating LLC only | Sutton, TXFawcett (Wolfcamp) | ActiveGas | 6,250 | Oct 20, 2009 | — | — |
| Wilson Duke #340942-435-39224 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,869 | Oct 20, 2009 | — | — |
| Lancaster 155 #842-435-39223 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,600 | Oct 16, 2009 | — | — |
| Ward #8042-435-39221 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,850 | Oct 15, 2009 | — | — |
| Lancaster 155 #942-435-39222 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,600 | Oct 14, 2009 | — | — |
| Canyon Ranch 127 #10S42-435-39219 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,570 | Sep 29, 2009 | — | — |
| Canyon Ranch #1274S42-435-39217 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,750 | Sep 23, 2009 | — | — |
| Canyon Ranch #1279S42-435-39218 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,750 | Sep 23, 2009 | — | — |
| Mittel R. H. #1542-435-39216 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 7,100 | Sep 22, 2009 | — | — |
| Mittel R. H. #1642-435-39215 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 7,278 | Sep 21, 2009 | — | — |
| Simmons 3 #1242-435-39214 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,100 | Sep 16, 2009 | — | — |