| Canyon Ranch #2162SHHZ42-435-34818 | Upp Operating LLC only | SuttonKelley (Ellenburger) | ActiveGas | 6,711 | Mar 16, 2018 | 2 | Jul 2026 |
| Powell 7 #242-413-32813 | Upp Operating LLC only | SchleicherSawyer (Strawn North) | ActiveGas | 8,400 | Jan 30, 2012 | 2 | Jul 2026 |
| Mayer Ranch 40 #1342-435-39357 | Upp Operating LLC only | SuttonSawyer (Strawn North) | ActiveGas | 8,599 | Jul 21, 2011 | 1 | Jul 2026 |
| Mayer Edwin S Jr 27 #1442-413-32736 | Upp Operating LLC only | SchleicherSawyer (Strawn North) | ActiveGas | 9,389 | Feb 17, 2011 | 2 | Jul 2026 |
| University 54 21 #242-413-32716 | Enervest Operating L.L.C. only | SchleicherKelley (Ellenburger) | PluggedGas | 8,275 | Dec 10, 2010 | 2 | Apr 2016 |
| Reynolds 25 #142-413-32715 | Upp Operating LLC only | SchleicherSawyer (Canyon) | ActiveGas | 8,000 | Dec 8, 2010 | 1 | Jul 2026 |
| Marigliano #160442-413-32664 | Upp Operating LLC only | SchleicherSawyer (Canyon) | ActiveGas | 8,350 | Jun 21, 2010 | 2 | Jul 2026 |
| Mayer Edwin S Jr 27 #442-413-32660 | Upp Operating LLC only | SchleicherKelley (Ellenburger) | ActiveGas | 8,553 | Jun 8, 2010 | 1 | Jul 2026 |
| Diebitsch 70 #1942-435-39282 | Upp Operating LLC only | SuttonSawyer (Strawn North) | ActiveGas | 8,100 | Apr 23, 2010 | 1 | Jul 2026 |
| Mayer Edwin S. Jr. 27 #342-413-32646 | Upp Operating LLC only | SchleicherSawyer (Strawn North) | ActiveGas | 8,594 | Apr 16, 2010 | 1 | Jul 2026 |
| Shannon 52 #2442-435-39278 | Upp Operating LLC only | SuttonSawyer (Canyon) | ActiveGas | 8,150 | Apr 14, 2010 | 1 | Jul 2026 |
| Hill-Rousselot B #442-413-32639 | Upp Operating LLC only | SchleicherSawyer (Canyon) | ActiveGas | 8,812 | Mar 31, 2010 | 1 | Jul 2026 |
| Nicks Gerald 5 #1342-435-39271 | Upp Operating LLC only | SuttonSawyer (Strawn North) | ActiveGas | 8,668 | Mar 24, 2010 | 1 | Jul 2026 |
| Jones Ranch #186942-435-39265 | Upp Operating LLC only | SuttonEldorado Southwest (Strawn) | ActiveGas | 8,197 | Feb 9, 2010 | 1 | Jul 2026 |
| Mayer Edwin S. Jr. E #1342-413-32623 | Upp Operating LLC only | SchleicherSawyer (Strawn North) | ActiveGas | 8,400 | Jan 15, 2010 | 1 | Jul 2026 |
| Nicks Gerald 5 #1242-435-39246 | Upp Operating LLC only | SuttonSawyer (Strawn North) | ActiveGas | 8,738 | Dec 17, 2009 | 1 | Jul 2026 |
| Mayer Edwin S. Jr. 27 #242-413-32592 | Upp Operating LLC only | SchleicherSawyer (Strawn North) | ActiveGas | 8,760 | Jun 12, 2009 | 2 | Jul 2026 |
| Ward 127 #2042-435-39078 | Upp Operating LLC only | SuttonKelley (Ellenburger) | ActiveGas | 8,460 | Apr 27, 2009 | 2 | Jul 2026 |
| Mayer Ranch 40 #842-435-39146 | Upp Operating LLC only | SuttonKelley (Ellenburger) | ActiveGas | 8,458 | Jan 30, 2009 | 1 | Jul 2026 |
| Mayer Edwin S. Jr. N #1442-413-32573 | Upp Operating LLC only | SchleicherKelley (Ellenburger) | ActiveGas | 8,550 | Jan 2, 2009 | 1 | Jul 2026 |
| Mayer Ranch 40 #1042-435-39142 | Upp Operating LLC only | SuttonSawyer (Canyon) | ActiveGas | 8,601 | Dec 30, 2008 | 1 | Jul 2026 |
| Canyon Ranch #121E42-137-31707 | Upp Operating LLC only | EdwardsSawyer (Canyon) | ActiveGas | 7,320 | Dec 3, 2008 | 3 | Jul 2026 |
| Mayer Ranch 40 #942-435-39133 | Upp Operating LLC only | SuttonSawyer (Canyon) | ActiveGas | 8,550 | Nov 17, 2008 | 1 | Jul 2026 |
| Childress 15 #342-105-40894 | Upp Operating LLC only | CrockettKelley (Ellenburger) | Temporarily abandonedGas | 8,751 | Nov 14, 2008 | 1 | Jul 2026 |
| Simmons 72.5 #542-435-39121 | Upp Operating LLC only | SuttonKelley (Ellenburger) | ActiveGas | 8,140 | Oct 13, 2008 | 1 | Jul 2026 |
| Powell 3 #242-413-32561 | Upp Operating LLC only | SchleicherSawyer (Canyon) | ActiveGas | 8,388 | Sep 26, 2008 | 1 | Jul 2026 |
| University 54 17 #542-413-32560 | Upp Operating LLC only | SchleicherOzona NE. (Canyon 7520) | ActiveGas | 8,365 | Sep 23, 2008 | 1 | Jul 2026 |
| Mayer Ranch 41 #342-435-39072 | Upp Operating LLC only | SuttonSawyer (Canyon) | ActiveGas | 8,625 | Sep 3, 2008 | 1 | Jul 2026 |
| Mayer Ranch 41 #442-435-39074 | Upp Operating LLC only | SuttonSawyer (Strawn North) | ActiveGas | 8,700 | Sep 3, 2008 | 1 | Jul 2026 |
| Canyon Ranch #5003E42-137-31751 | Upp Operating LLC only | EdwardsSawyer (Canyon) | ActiveGas | 6,874 | Jul 21, 2008 | 3 | Jul 2026 |
| Mayer Ranch 35 #1342-435-39026 | Upp Operating LLC only | SuttonSawyer (Strawn North) | ActiveGas | 8,445 | Jul 7, 2008 | 1 | Jul 2026 |
| Mayer Ranch 35 #1142-435-39027 | Upp Operating LLC only | SuttonKelley (Ellenburger) | ActiveGas | 8,617 | Jul 7, 2008 | 1 | Jul 2026 |
| Mayer Ranch 40 #1142-435-39024 | Upp Operating LLC only | SuttonKelley (Ellenburger) | ActiveGas | 8,618 | Jul 3, 2008 | 1 | Jul 2026 |
| University 54-24 #142-413-32528 | Upp Operating LLC only | SchleicherKelley (Ellenburger) | ActiveGas | 8,300 | Jun 27, 2008 | 1 | Jul 2026 |
| Canyon Ranch #505E42-137-31726 | Upp Operating LLC only | EdwardsKelley (Ellenburger) | Temporarily abandonedGas | 7,018 | Feb 13, 2004 | 1 | Jul 2026 |
| Canyon Ranch 212 #3E42-137-31709 | Upp Operating LLC only | EdwardsKelley (Ellenburger) | ActiveGas | 7,135 | Oct 23, 2003 | 2 | Jul 2026 |
| Canyon Ranch 213 #11E42-137-31695 | Upp Operating LLC only | EdwardsKelley (Ellenburger) | Temporarily abandonedGas | 7,300 | Jul 31, 2003 | 1 | Jul 2026 |
| Canyon Ranch #0051EHHZ42-137-31177 | Upp Operating LLC only | EdwardsKelley (Ellenburger) | ActiveGas | 9,100 | Mar 24, 2003 | 2 | Jul 2026 |
| Canyon Ranch #2102E42-137-31665 | Upp Operating LLC only | EdwardsKelley (Ellenburger) | Temporarily abandonedGas | 7,090 | Mar 5, 2003 | 3 | Jul 2026 |
| Canyon Ranch #2122E42-137-31662 | Upp Operating LLC only | EdwardsKelley (Ellenburger) | ActiveGas | 7,272 | Feb 14, 2003 | 2 | Jul 2026 |
| Canyon Ranch #2142E42-137-31658 | Upp Operating LLC only | EdwardsKelley (Ellenburger) | Temporarily abandonedGas | 7,400 | Dec 6, 2002 | 1 | Jul 2026 |
| Mann-McDonald #0051EHHZ42-137-31464 | Upp Operating LLC only | EdwardsKelley (Ellenburger) | ActiveGas | 6,677 | May 1, 1998 | 2 | Jul 2026 |
| Canyon Ranch #2121EHZ42-137-31037 | Enervest Operating L.L.C. only | EdwardsKelley (Ellenburger) | PluggedGas | 7,005 | May 1, 1997 | 3 | Jun 2014 |
| Canyon Ranch #2161SHZ42-435-33693 | Enervest Operating L.L.C. only | SuttonKelley (Ellenburger) | PluggedGas | 7,000 | Apr 10, 1997 | 3 | Feb 2017 |
| Canyon Ranch #5012EHHZ42-137-31307 | Upp Operating LLC only | EdwardsKelley (Ellenburger) | Temporarily abandonedGas | 9,189 | Feb 20, 1997 | 1 | Jul 2026 |
| Canyon Ranch #2141EHHZ42-137-31291 | Upp Operating LLC only | EdwardsKelley (Ellenburger) | Temporarily abandonedGas | 6,772 | Sep 30, 1996 | 1 | Jul 2026 |
| Canyon Ranch #2133EHHZ42-137-31287 | Upp Operating LLC only | EdwardsKelley (Ellenburger) | Temporarily abandonedGas | 9,902 | Aug 26, 1996 | 1 | Jul 2026 |
| Canyon Ranch #1271SHHZ42-435-34599 | Upp Operating LLC only | SuttonKelley (Ellenburger) | ActiveGas | 9,945 | Jul 3, 1996 | 1 | Jul 2026 |
| Canyon Ranch #2204EHHZ42-137-31254 | Upp Operating LLC only | EdwardsKelley (Ellenburger) | ActiveGas | 10,171 | May 10, 1996 | 2 | Jul 2026 |
| Canyon Ranch #501EHHZ42-137-31222 | Upp Operating LLC only | EdwardsKelley (Ellenburger) | ActiveGas | 8,477 | Oct 11, 1995 | 1 | Jul 2026 |