| Canyon Ranch #9316S42-435-36941 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 5,375 | Jun 22, 2004 | — | — |
| Ward #5242-435-36942 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 7,009 | Jun 22, 2004 | — | — |
| Ward #5642-435-36943 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 7,106 | Jun 22, 2004 | — | — |
| Canyon Ranch #1215S42-435-36944 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,450 | Jun 22, 2004 | — | — |
| Ward #5542-435-36945 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 7,000 | Jun 22, 2004 | — | — |
| Carta 114 #942-435-36926 | Robert C. Brower LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,400 | Jun 21, 2004 | — | — |
| Carta 104 #242-435-36927 | Robert C. Brower LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,450 | Jun 21, 2004 | — | — |
| Glasscock Lillian Bell #321442-435-36922 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,550 | Jun 17, 2004 | — | — |
| Glasscock Lillian Bell #320942-435-36923 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,625 | Jun 17, 2004 | — | — |
| Glasscock Lillian Bell #321342-435-36924 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,621 | Jun 17, 2004 | — | — |
| Glasscock Lillian Bell #321042-435-36925 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,631 | Jun 17, 2004 | — | — |
| Shurley #11342-435-36891 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,223 | Jun 16, 2004 | — | — |
| Shurley #11442-435-36892 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,285 | Jun 16, 2004 | — | — |
| Morriss 64 #942-435-36915 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,107 | Jun 16, 2004 | — | — |
| Morriss Ranch #810542-435-36916 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,105 | Jun 16, 2004 | — | — |
| Wilson Duke 171 #1442-435-36917 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,600 | Jun 16, 2004 | — | — |
| Wilson Duke 172 #1342-435-36918 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,666 | Jun 16, 2004 | — | — |
| Wilson Duke 171 #1242-435-36919 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,500 | Jun 16, 2004 | — | — |
| Wilson Duke 188 #1542-435-36920 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,981 | Jun 16, 2004 | — | — |
| Wilson Duke 188 #1642-435-36921 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,930 | Jun 16, 2004 | — | — |
| Aldwell Winnie R. Trust K. #742-435-36908 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,600 | Jun 15, 2004 | — | — |
| Hull 121 #342-435-36906 | Silver Oil & Gas Inc. only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,300 | Jun 14, 2004 | — | — |
| Aldwell Winnie R. Trust K. #442-435-36907 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,605 | Jun 14, 2004 | — | — |
| Canyon Ranch #2072S42-435-36909 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,450 | Jun 14, 2004 | — | — |
| Nicks, Gerald #642-435-36910 | Dominion Oklahoma Texas E&P, Incpermitted by · no operator of record | Sutton, TX | Not on schedule | 8,550 | Jun 14, 2004 | — | — |
| Hudspeth 52 #542-435-36911 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,775 | Jun 14, 2004 | — | — |
| Bee County School Land #1642-435-36912 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,400 | Jun 14, 2004 | — | — |
| Brown / Whitehead 2 #1642-435-36913 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 9,300 | Jun 14, 2004 | — | — |
| Brown / Whitehead 2 #4242-435-36914 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 9,000 | Jun 14, 2004 | — | — |
| Carta 103 #942-435-36900 | Robert C. Brower LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,375 | Jun 10, 2004 | — | — |
| Carta 103 #842-435-36901 | Robert C. Brower LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,375 | Jun 10, 2004 | — | — |
| Aldwell Winnie R. Trust #1442-435-36902 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,600 | Jun 10, 2004 | — | — |
| Aldwell Winnie R. Trust #1642-435-36903 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,625 | Jun 10, 2004 | — | — |
| Aldwell Winnie R. Trust #1742-435-36904 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,600 | Jun 10, 2004 | — | — |
| Aldwell Winnie R. Trust #1942-435-36905 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,612 | Jun 10, 2004 | — | — |
| Hull 121 #442-435-36898 | Silver Oil & Gas Inc. only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,265 | Jun 7, 2004 | — | — |
| Hull 121 #242-435-36899 | Silver Oil & Gas Inc. only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,262 | Jun 7, 2004 | — | — |
| Morriss 81 #242-435-36896 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,225 | Jun 3, 2004 | — | — |
| Cusen Bary 60 #1042-435-36897 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 5,719 | Jun 2, 2004 | — | — |
| Duke Wilson 171 #1142-435-36894 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,714 | May 29, 2004 | — | — |
| Dunbar Ned #8042-435-36895 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,300 | May 28, 2004 | — | — |
| Fields 55 #1642-435-36889 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,100 | May 25, 2004 | — | — |
| Fields 55 #1342-435-36890 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,116 | May 25, 2004 | — | — |
| Duke Wilson 189 #1542-435-36893 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,900 | May 24, 2004 | — | — |
| Shurley #11242-435-36877 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,250 | May 20, 2004 | — | — |
| Steen #7942-435-36884 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 5,933 | May 20, 2004 | — | — |
| Steen #7842-435-36885 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 5,817 | May 20, 2004 | — | — |
| Cauthorn 27 #1142-435-36886 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,707 | May 20, 2004 | — | — |
| Cauthorn 27 #1442-435-36887 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,548 | May 20, 2004 | — | — |
| Meckel #8042-435-36888 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,017 | May 20, 2004 | — | — |