| University 55 10 #342-413-32753 | Upp Operating LLC | Schleicher, TXOzona NE. (Canyon 7520) | ActiveOil | 8,117 | Apr 13, 2011 | — | — |
| Justin Unit #1HHZ42-121-34135 | Upp Operating LLC | Denton, TXNewark East (Barnett Shale) | ActiveGas | 7,729 | Apr 11, 2011 | — | — |
| Mayer Ranch 36 #1042-435-39349 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,453 | Apr 11, 2011 | — | — |
| Debbie Lane B Unit #11HHZ42-439-35844 | Upp Operating LLC | Tarrant, TXNewark East (Barnett Shale) | ActiveGas | 8,136 | Apr 1, 2011 | — | — |
| Green #442-497-37241 | Upp Operating LLC | Wise, TXLester-Rawle (Strawn 4200) | ActiveOil | 4,384 | Mar 30, 2011 | — | — |
| Rousselot Doris Mayer 26 #142-413-32744 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 8,380 | Mar 22, 2011 | — | — |
| Meador 57 #1142-413-32742 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 8,100 | Mar 18, 2011 | — | — |
| Mayer Edwin S. Jr. 27 #1142-413-32734 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 8,525 | Mar 9, 2011 | — | — |
| Nixon 177 #1142-413-32516 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | Temporarily abandonedGas | 7,615 | Mar 7, 2011 | — | — |
| Pfluger 85 #842-435-34295 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,500 | Mar 1, 2011 | — | — |
| Mayer Edwin S Jr 27 #1342-413-32737 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | ActiveGas | 8,311 | Feb 25, 2011 | — | — |
| Mayer Edwin S Jr 27 #1542-413-32738 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | ActiveGas | 7,710 | Feb 25, 2011 | — | — |
| Mayer Edwin S Jr 27 #1642-413-32739 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | ActiveGas | 8,428 | Feb 25, 2011 | — | — |
| Mayer Edwin S Jr 27 #1242-413-32741 | Upp Operating LLC | Schleicher, TXFawcett (Wolfcamp) | ActiveGas | 7,108 | Feb 25, 2011 | — | — |
| Mayer Edwin S. Jr. 27 #1042-413-32730 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 8,364 | Feb 23, 2011 | — | — |
| Mayer Edwin S Jr 27 #1442-413-32736 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 9,389 | Feb 17, 2011 | — | — |
| Wilson Duke 176 #1542-435-39195 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,650 | Feb 14, 2011 | — | — |
| Vanderstucken Joe M. #542-435-35426 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,781 | Feb 11, 2011 | — | — |
| Debbie Lane a Unit #9HHZ42-439-35715 | Upp Operating LLC | Tarrant, TXNewark East (Barnett Shale) | ActiveGas | 8,112 | Feb 9, 2011 | — | — |
| Marigliano #161042-413-32733 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 9,500 | Feb 1, 2011 | — | — |
| Randee Fawcett Trust B #18RS42-435-39348 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveInjection | 8,860 | Jan 31, 2011 | — | — |
| Powell 14 #442-413-32732 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | Temporarily abandonedGas | 8,560 | Jan 28, 2011 | — | — |
| Bloodworth 140 #10SW42-435-39347 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveInjection | 8,491 | Jan 28, 2011 | — | — |
| Mayer Ranch 36 #942-435-39346 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,585 | Jan 24, 2011 | — | — |
| Debbie Lane a Unit #7HHZ42-439-35685 | Upp Operating LLC | Tarrant, TXNewark East (Barnett Shale) | ActiveGas | 8,034 | Jan 21, 2011 | — | — |
| Debbie Lane B Unit #6HHZ42-439-35683 | Upp Operating LLC | Tarrant, TXNewark East (Barnett Shale) | ActiveGas | 8,125 | Jan 14, 2011 | — | — |
| Hill-Mayer Edwin S. Jr. H #442-435-39340 | Upp Operating LLC | Sutton, TXFawcett (Wolfcamp) | ActiveGas | 8,100 | Dec 29, 2010 | — | — |
| Wilson Duke 173 #20X42-435-39345 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,097 | Dec 27, 2010 | — | — |
| Wilson Duke 171 #1042-435-36863 | Upp Operating LLC | Sutton, TXFawcett (Wolfcamp) | ActiveGas | 8,478 | Dec 21, 2010 | — | — |
| Marigliano #160942-413-32720 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | ActiveGas | 8,200 | Dec 20, 2010 | — | — |
| Wilson Duke #171842-435-36743 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,301 | Dec 20, 2010 | — | — |
| Marigliano #150242-413-32718 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | ActiveGas | 8,600 | Dec 17, 2010 | — | — |
| Mayfield 41 #942-435-36741 | Upp Operating LLC | Sutton, TXFawcett (Wolfcamp) | ActiveGas | 8,550 | Dec 17, 2010 | — | — |
| Hill-Mayer Edwin S. Jr. H #542-435-39341 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,223 | Dec 16, 2010 | — | — |
| University 55 10 #242-413-32717 | Upp Operating LLC | Schleicher, TXSawyer (Leonard) | ActiveOil | 5,927 | Dec 13, 2010 | — | — |
| Hill-Mayer Edwin S. Jr. X #342-435-34461 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,010 | Dec 13, 2010 | — | — |
| Mayer Edwin S. Jr. D 5 #342-435-38749 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,280 | Dec 13, 2010 | — | — |
| Powell 8 #642-413-32714 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 8,700 | Dec 8, 2010 | — | — |
| Reynolds 25 #142-413-32715 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | ActiveGas | 8,000 | Dec 8, 2010 | — | — |
| Powell 14 #342-413-32711 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 8,500 | Nov 23, 2010 | — | — |
| Meador 57 #942-413-32706 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 8,100 | Nov 15, 2010 | — | — |
| Clark 58 #742-413-32709 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | Temporarily abandonedGas | 8,100 | Nov 15, 2010 | — | — |
| Mayfield 41 #2042-435-39343 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,549 | Nov 10, 2010 | — | — |
| Canyon Ranch 106 #13E42-137-32093 | Upp Operating LLC | Edwards, TXSawyer (Canyon) | ActiveGas | 6,700 | Nov 8, 2010 | — | — |
| Shurley RR 2A #842-435-39336 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,422 | Nov 5, 2010 | — | — |
| Shurley RR 1C #442-435-39337 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,201 | Nov 5, 2010 | — | — |
| Shurley RR 5 #742-435-39338 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 720 | Nov 5, 2010 | — | — |
| Canyon Ranch 113 #17E42-137-32092 | Upp Operating LLC | Edwards, TXSawyer (Canyon) | ActiveGas | 6,605 | Nov 4, 2010 | — | — |
| Mayer Edwin S. Jr. 27 #542-413-32701 | Upp Operating LLC | Schleicher, TXSawyer (Strawn North) | ActiveGas | 8,550 | Nov 2, 2010 | — | — |
| Marigliano #160742-413-32703 | Upp Operating LLC | Schleicher, TXSawyer (Canyon) | Temporarily abandonedGas | 8,350 | Nov 1, 2010 | — | — |