| Holman #261342-435-39314 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,123 | Aug 17, 2010 | — | — |
| Holman #250442-435-39313 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,325 | Aug 13, 2010 | — | — |
| Powell 4 #442-413-32675 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | ActiveGas | 8,401 | Aug 11, 2010 | — | — |
| Epps H.C. #39 #1642-435-39309 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,125 | Aug 6, 2010 | — | — |
| Cusenbary 58 #1842-435-39308 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,100 | Aug 5, 2010 | — | — |
| Clements Psa #13HHZ42-251-34066 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,824 | Aug 4, 2010 | — | — |
| Marigliano #170242-413-32673 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | ActiveGas | 8,500 | Aug 4, 2010 | — | — |
| Cusenbary 58 #1942-435-39307 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,120 | Aug 4, 2010 | — | — |
| Powell 13A #1HHZ42-413-32668 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | Temporarily abandonedGas | 7,548 | Jul 28, 2010 | — | — |
| Stevens Gas Unit #10HHZ42-497-37117 | Upp Operating LLC | Wise, TXNewark East (Barnett Shale) | ActiveGas | 7,501 | Jul 27, 2010 | — | — |
| Ford/Ellis Psa #8HHZ42-251-34053 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,983 | Jul 26, 2010 | — | — |
| Ford/Ellis Psa #9HHZ42-251-34054 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,887 | Jul 26, 2010 | — | — |
| Parmer 30 #542-413-32665 | Upp Operating LLC | Schleicher, TXOzona NE. (Canyon 7520) | ActiveGas | 8,700 | Jul 21, 2010 | — | — |
| University 54 24 #642-413-32631 | Upp Operating LLC | Schleicher, TXOzona NE. (Canyon 7520) | ActiveOil | 8,422 | Jul 14, 2010 | — | — |
| Ryan 19 #342-413-32662 | Upp Operating LLC | Schleicher, TXOzona NE. (Canyon 7520) | ActiveGas | 8,612 | Jul 14, 2010 | — | — |
| Cusenbary WR 39 #1342-435-39303 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,027 | Jul 2, 2010 | — | — |
| Cusenbary WR 39 #1042-435-39304 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,056 | Jul 2, 2010 | — | — |
| Cusenbary WR 39 #1442-435-39305 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,015 | Jul 2, 2010 | — | — |
| Marigliano #160342-413-32666 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | ActiveGas | 8,269 | Jul 1, 2010 | — | — |
| Cusenbary 58 #1742-435-39302 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,122 | Jun 25, 2010 | — | — |
| Mayer Ranch 36 #842-435-39297 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,700 | Jun 23, 2010 | — | — |
| Cusenbary 58 #1642-435-39301 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,100 | Jun 23, 2010 | — | — |
| Marigliano #160442-413-32664 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | ActiveGas | 8,350 | Jun 21, 2010 | — | — |
| Marigliano #170142-413-32663 | Upp Operating LLC | Schleicher, TXOzona NE. (Canyon 7520) | ActiveGas | 8,570 | Jun 18, 2010 | — | — |
| Thornton Unit #5HHZ42-439-35231 | Upp Operating LLC | Tarrant, TXNewark East (Barnett Shale) | ActiveGas | 8,467 | Jun 18, 2010 | — | — |
| Thornton Unit #6HHZ42-439-35232 | Upp Operating LLC | Tarrant, TXNewark East (Barnett Shale) | ActiveGas | 8,377 | Jun 18, 2010 | — | — |
| Thornton Unit #7HHZ42-439-35233 | Upp Operating LLC | Tarrant, TXNewark East (Barnett Shale) | ActiveGas | 8,334 | Jun 18, 2010 | — | — |
| Thornton Unit #8HHZ42-439-35234 | Upp Operating LLC | Tarrant, TXNewark East (Barnett Shale) | ActiveGas | 8,400 | Jun 18, 2010 | — | — |
| Mayer Edwin S. Jr. E #3442-413-32659 | Upp Operating LLC | Schleicher, TXBuckhorn (Wilberns) | Temporarily abandonedGas | 11,021 | Jun 10, 2010 | — | — |
| Geren #21HHZ42-251-34016 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,368 | Jun 8, 2010 | — | — |
| Mayer Edwin S. Jr. P #1442-413-32655 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 8,753 | Jun 8, 2010 | — | — |
| Mayer Edwin S Jr 27 #442-413-32660 | Upp Operating LLC | Schleicher, TXKelley (Ellenburger) | ActiveGas | 8,553 | Jun 8, 2010 | — | — |
| Southard Farms (Psa) #8HHZ42-251-34012 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,915 | Jun 7, 2010 | — | — |
| Southard Farms (Psa) #7HHZ42-251-34011 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,915 | Jun 4, 2010 | — | — |
| Mayer Ranch 36 #142-435-38641 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,560 | Jun 4, 2010 | — | — |
| Canyon Ranch #9112E42-137-32084 | Upp Operating LLC | Edwards, TXSawyer (Canyon) | Temporarily abandonedGas | 6,739 | Jun 3, 2010 | — | — |
| Southard Farms (Psa) #6HHZ42-251-34005 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,967 | Jun 3, 2010 | — | — |
| Canyon Ranch #9113E42-137-32083 | Upp Operating LLC | Edwards, TXSawyer (Canyon) | ActiveGas | 6,807 | Jun 2, 2010 | — | — |
| Mayer Edwin S. Jr. #80342-435-34920 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,200 | Jun 2, 2010 | — | — |
| Hill-Mayer Edwin S. Jr B #742-435-38900 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,050 | May 28, 2010 | — | — |
| Canyon Ranch 113 #14E42-137-32082 | Upp Operating LLC | Edwards, TXSawyer (Canyon) | ActiveGas | 6,600 | May 26, 2010 | — | — |
| Canyon Ranch 113 #13E42-137-32081 | Upp Operating LLC | Edwards, TXSawyer (Canyon) | ActiveGas | 6,700 | May 25, 2010 | — | — |
| Mayer Edwin S. Jr. N #2042-413-32657 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 8,700 | May 25, 2010 | — | — |
| Johnson JO Nell 18 #742-435-39294 | Upp Operating LLC | Sutton, TXJO Nell (Canyon D) | ActiveGas | 9,300 | May 25, 2010 | — | — |
| Mayer Ranch 40 #742-435-39295 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,600 | May 25, 2010 | — | — |
| Canyon Ranch #1069X42-435-39296 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,812 | May 21, 2010 | — | — |
| Swapo II a Unit #1HHZ42-439-35169 | Upp Operating LLC | Tarrant, TXNewark East (Barnett Shale) | ActiveGas | 8,043 | May 21, 2010 | — | — |
| Canyon Ranch 106 #12E42-137-32080 | Upp Operating LLC | Edwards, TXSawyer (Canyon) | ActiveGas | 6,618 | May 20, 2010 | — | — |
| Mayer Ranch QQQ #15342-435-33399 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,237 | May 19, 2010 | — | — |
| Richardson Kolar Psa #4HHZ42-251-34002 | Upp Operating LLC | Johnson, TXNewark East (Barnett Shale) | ActiveGas | 6,821 | May 18, 2010 | — | — |