| Mayfield 41 #942-435-36741 | Upp Operating LLC only | Sutton, TXFawcett (Wolfcamp) | ActiveGas | 8,550 | Dec 17, 2010 | — | — |
| Hill-Mayer Edwin S. Jr. H #542-435-39341 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,223 | Dec 16, 2010 | — | — |
| Holman #260942-435-39344 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TXSawyer (Canyon) | Not on schedule | 7,300 | Dec 16, 2010 | — | — |
| Hill-Mayer Edwin S. Jr. X #342-435-34461 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,010 | Dec 13, 2010 | — | — |
| Mayer Edwin S. Jr. D 5 #342-435-38749 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,280 | Dec 13, 2010 | — | — |
| Mayfield 41 #2042-435-39343 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,549 | Nov 10, 2010 | — | — |
| Shurley RR 2A #842-435-39336 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,422 | Nov 5, 2010 | — | — |
| Shurley RR 1C #442-435-39337 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,201 | Nov 5, 2010 | — | — |
| Shurley RR 5 #742-435-39338 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 720 | Nov 5, 2010 | — | — |
| Keene C #4HHZ42-435-39342 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 8,995 | Nov 4, 2010 | — | — |
| Epps H.C. #39 #1842-435-39322 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,000 | Oct 29, 2010 | — | — |
| Fawcett Randee Trust B #1042-435-37311 | Upp Operating LLC only | Sutton, TXSawyer (Leonard) | ActiveGas | 8,668 | Oct 22, 2010 | — | — |
| Ward 127 #1842-435-37143 | Upp Operating LLC only | Sutton, TXFawcett (Wolfcamp) | ActiveGas | 7,000 | Oct 14, 2010 | — | — |
| Mayer Ranch FF #300442-435-39339 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,317 | Oct 14, 2010 | — | — |
| Mayer Edwin S. Jr. D #40342-435-39335 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,450 | Oct 13, 2010 | — | — |
| Kelly 124 #3342-435-39334 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,785 | Oct 5, 2010 | — | — |
| Kelly 126 #3042-435-39329 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,786 | Oct 1, 2010 | — | — |
| Duke Wilson 173 #2042-435-39333 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Plugged | 9,450 | Oct 1, 2010 | — | — |
| Simmons 3 #1342-435-39332 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 7,950 | Sep 30, 2010 | — | — |
| Cauthorn 86 #1242-435-39330 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,565 | Sep 29, 2010 | — | — |
| Wilson Duke 175 #442-435-39331 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,650 | Sep 29, 2010 | — | — |
| Genini #392742-435-39317 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 9,350 | Sep 28, 2010 | — | — |
| Kelly 115 #3342-435-39325 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,432 | Sep 27, 2010 | — | — |
| Shurley 142 #3342-435-39326 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,926 | Sep 27, 2010 | — | — |
| Mayfield 33 #2642-435-39327 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 8,800 | Sep 27, 2010 | — | — |
| Mayer #5942-435-39328 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 8,650 | Sep 27, 2010 | — | — |
| Holman #261442-435-39323 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 7,118 | Sep 22, 2010 | — | — |
| Epps H.C. #39 #1942-435-39324 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,018 | Sep 22, 2010 | — | — |
| Ward 114 #2342-435-38982 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 7,900 | Sep 21, 2010 | — | — |
| Epps H.C. #39 #1742-435-39321 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,002 | Sep 20, 2010 | — | — |
| Canyon Ranch 106 #10X42-435-39319 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,726 | Sep 13, 2010 | — | — |
| Mayer Ranch K #100442-435-39320 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 8,550 | Sep 13, 2010 | — | — |
| Mayer Edwin S Jr #2542-435-39318 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 8,550 | Sep 10, 2010 | — | — |
| Hicks 57 #142-435-31134 | Upp Operating LLC only | Sutton, TXFawcett (Wolfcamp) | ActiveGas | 5,122 | Sep 9, 2010 | — | — |
| Mayer Ranch 41 #642-435-39306 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,758 | Sep 2, 2010 | — | — |
| Ward Rip -E- #142-435-30881 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,200 | Aug 26, 2010 | — | — |
| Ward R.C. #642-435-34254 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,222 | Aug 23, 2010 | — | — |
| Wilson Duke #160342-435-39315 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 9,350 | Aug 19, 2010 | — | — |
| Wilson Duke #160542-435-39316 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 9,350 | Aug 19, 2010 | — | — |
| Wilson Duke 185 #1742-435-39312 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 9,100 | Aug 17, 2010 | — | — |
| Holman #261342-435-39314 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,123 | Aug 17, 2010 | — | — |
| Holman #250442-435-39313 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,325 | Aug 13, 2010 | — | — |
| Wilson Duke 176 #1442-435-39310 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 9,350 | Aug 11, 2010 | — | — |
| Wilson Duke 184 #1142-435-39311 | Highmount Expl & Prod Texas LLCpermitted by · no operator of record | Sutton, TX | Not on schedule | 9,350 | Aug 11, 2010 | — | — |
| Epps H.C. #39 #1642-435-39309 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,125 | Aug 6, 2010 | — | — |
| Cusenbary 58 #1842-435-39308 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,100 | Aug 5, 2010 | — | — |
| Cusenbary 58 #1942-435-39307 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,120 | Aug 4, 2010 | — | — |
| Cusenbary WR 39 #1342-435-39303 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,027 | Jul 2, 2010 | — | — |
| Cusenbary WR 39 #1042-435-39304 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,056 | Jul 2, 2010 | — | — |
| Cusenbary WR 39 #1442-435-39305 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,015 | Jul 2, 2010 | — | — |