| Richardson 4 #742-435-35003 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,443 | Oct 12, 1999 | — | — |
| Espy 40 #942-435-35004 | Dreyfus Louis Natural Gas Corp | Sutton, TXSawyer (Canyon) | PluggedGas | 6,000 | Oct 12, 1999 | — | — |
| Askew & Glimp 55 #642-435-35005 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,050 | Oct 12, 1999 | — | — |
| Askew & Glimp 55 #742-435-35006 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,100 | Oct 12, 1999 | — | — |
| Mayer 9 #242-435-35007 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,250 | Oct 12, 1999 | — | — |
| Mayer 17 #342-435-35008 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,300 | Oct 12, 1999 | — | — |
| Mayer 19 #442-435-35009 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,642 | Oct 12, 1999 | — | — |
| Pope "11" #142-435-34996 | — | Sutton, TX | Plugged | 4,800 | Oct 8, 1999 | — | — |
| Richardson 4 #142-435-32356 | Enron Oil & Gas Company | Sutton, TXSawyer (Leonard) | PluggedGas | 8,450 | Oct 5, 1999 | — | — |
| Mayfield 34 #3R42-435-34993 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,500 | Sep 24, 1999 | — | — |
| Allison Lea #4101HHZ42-435-34731 | Anadarko E&P Company LP | Sutton, TXBranch North (Canyon Sand) | PluggedGas | 6,000 | Sep 22, 1999 | — | — |
| Bloodworth 139 #742-435-34991 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 7,500 | Sep 16, 1999 | — | — |
| Mayer 47 #642-435-34992 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,450 | Sep 16, 1999 | — | — |
| Mayer 1028 #142-435-34985 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,450 | Sep 14, 1999 | — | — |
| Mayer Edwin S. Jr. C #10242-435-34480 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | Temporarily abandonedGas | 8,025 | Sep 10, 1999 | — | — |
| Jones Ranch #30242-435-34849 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,070 | Sep 10, 1999 | — | — |
| Canyon Ranch #1311S42-435-34982 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,500 | Sep 10, 1999 | — | — |
| Mayer 1 #342-435-34983 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,500 | Sep 10, 1999 | — | — |
| Mayer 10 #342-435-34984 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,757 | Sep 10, 1999 | — | — |
| Canyon Ranch #8302X42-435-34986 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,400 | Sep 10, 1999 | — | — |
| Canyon Ranch #1073A42-435-34987 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,520 | Sep 10, 1999 | — | — |
| Mayer 1 #442-435-34988 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,600 | Sep 10, 1999 | — | — |
| Canyon Ranch #833X42-435-34989 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,400 | Sep 10, 1999 | — | — |
| Canyon Ranch #8312S42-435-34990 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,500 | Sep 10, 1999 | — | — |
| Richardson 6 #542-435-34898 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,450 | Sep 8, 1999 | — | — |
| Hill-Mayer Edwin S. Jr. B #242-435-34468 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 7,950 | Sep 3, 1999 | — | — |
| Fields 21 #1142-435-34978 | Upp Operating LLC | Sutton, TXFawcett (Wolfcamp) | ActiveGas | 6,050 | Sep 1, 1999 | — | — |
| Mayer 18 #442-435-34979 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,325 | Sep 1, 1999 | — | — |
| Fields 56 #542-435-34980 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,060 | Sep 1, 1999 | — | — |
| Hill-Mayer Edwin S. Jr. CC #342-435-34981 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,300 | Sep 1, 1999 | — | — |
| Espy #290142-435-00204 | — | Sutton, TXSawyer (Canyon) | Plugged | 6,000 | Aug 26, 1999 | — | — |
| Fields Estate #342-435-34974 | Stanolind Operating Corp. | Sutton, TXSawyer (Canyon) | PluggedGas | 5,800 | Aug 26, 1999 | — | — |
| Mayer Edwin S. Jr. #2342-435-34975 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,100 | Aug 26, 1999 | — | — |
| Bee County School Land #542-435-34976 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,400 | Aug 26, 1999 | — | — |
| Davis C #7R42-435-34977 | Smith Pipe of Abilene | Sutton, TXSonora (Canyon Upper) | PluggedGas | 9,000 | Aug 26, 1999 | — | — |
| Richardson 138 #842-435-34891 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,300 | Aug 24, 1999 | — | — |
| Aldwell-McPherson #242-435-34973 | Highmount Expl & Prod Texas LLC | Sutton, TXSawyer (Canyon) | PluggedGas | 9,000 | Aug 23, 1999 | — | — |
| McMillan Leo H. 108 #1442-435-34923 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,500 | Aug 18, 1999 | — | — |
| Fields 20 #1142-435-34972 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,150 | Aug 18, 1999 | — | — |
| Mayer Edwin S. Jr. D #80842-435-34970 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,175 | Aug 16, 1999 | — | — |
| Mayer 15 #742-435-34971 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 8,250 | Aug 16, 1999 | — | — |
| Hill-Mayer Edwin S. Jr. Q #442-435-34966 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,125 | Aug 11, 1999 | — | — |
| Pfluger 103 #742-435-34968 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,565 | Aug 9, 1999 | — | — |
| Pfluger 103 #542-435-34969 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,600 | Aug 9, 1999 | — | — |
| Fields 17 #1542-435-34967 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,050 | Aug 5, 1999 | — | — |
| Ward John a #442-435-34290 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 7,700 | Aug 2, 1999 | — | — |
| Hill-Mayer Minnie H. C #342-435-34505 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,200 | Aug 2, 1999 | — | — |
| Holman 26 #142-435-34960 | Tidwell Production Company | Sutton, TXSonora (Canyon Upper) | PluggedGas | 7,400 | Aug 2, 1999 | — | — |
| Hill-Mayer Edwin S. Jr. J #342-435-34455 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,058 | Jul 28, 1999 | — | — |
| Hill-Mayer Edwin S. Jr. Z #242-435-34569 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,155 | Jul 26, 1999 | — | — |