| Pfluger 85 #1642-435-35109 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,500 | Mar 24, 2000 | — | — |
| Pfluger 103 #1142-435-35098 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,550 | Mar 21, 2000 | — | — |
| Pfluger 103 #1042-435-35099 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,550 | Mar 21, 2000 | — | — |
| McMillian Leo H. 11 #1242-435-35100 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,650 | Mar 21, 2000 | — | — |
| Pfluger 105 #1742-435-35101 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,600 | Mar 21, 2000 | — | — |
| Pfluger 105 #1642-435-35102 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,600 | Mar 21, 2000 | — | — |
| Pfluger 105 #1042-435-35103 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,600 | Mar 21, 2000 | — | — |
| McMillan W. B. 10 #1342-435-35104 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,650 | Mar 21, 2000 | — | — |
| Pfluger 84 #1642-435-35105 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,550 | Mar 21, 2000 | — | — |
| Ward #5042-435-35084 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,626 | Mar 20, 2000 | — | — |
| Miers a #151642-435-35096 | Robert C. Brower LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 5,650 | Mar 20, 2000 | — | — |
| Miers a #151742-435-35097 | Robert C. Brower LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 5,700 | Mar 20, 2000 | — | — |
| Mayer 18 #542-435-35091 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,350 | Mar 15, 2000 | — | — |
| Mayer 18 #842-435-35092 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,320 | Mar 15, 2000 | — | — |
| Mayer 9 #342-435-35093 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,360 | Mar 15, 2000 | — | — |
| Mayer 4 #342-435-35094 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,450 | Mar 15, 2000 | — | — |
| Mayer 1028 #A30142-435-35095 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,305 | Mar 15, 2000 | — | — |
| Berger #2542-435-35090 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,390 | Mar 10, 2000 | — | — |
| Granger Bluff a #420242-435-35089 | Blackstone Energy Services LLC | Sutton, TXWhitehead (Strawn) | ActiveGas | 9,175 | Mar 6, 2000 | — | — |
| McDermott #442-435-34887 | Grace Petroleum Operating LLC | Sutton, TXBranch North (Canyon Sand) | ActiveGas | 6,200 | Mar 3, 2000 | — | — |
| Jones Ranch #186442-435-34719 | Upp Operating LLC | Sutton, TXEldorado Southwest (Strawn) | Temporarily abandonedGas | 7,800 | Mar 2, 2000 | — | — |
| Vanderstucken #810542-435-35088 | Smith Pipe of Abilene | Sutton, TXFawcett (Wolfcamp) | PluggedGas | 5,450 | Feb 24, 2000 | — | — |
| Ward #4942-435-35083 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,490 | Feb 18, 2000 | — | — |
| Bee County School Land #2R42-435-35085 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,450 | Feb 18, 2000 | — | — |
| Bee County School Land #1042-435-35086 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,500 | Feb 18, 2000 | — | — |
| Bee County School Land #1142-435-35087 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,500 | Feb 18, 2000 | — | — |
| Davis #1142-435-35081 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,090 | Feb 14, 2000 | — | — |
| Davis #1342-435-35082 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,100 | Feb 14, 2000 | — | — |
| Barton #1042-435-35079 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,640 | Feb 11, 2000 | — | — |
| Barton #1142-435-35080 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,580 | Feb 11, 2000 | — | — |
| Deberry a #5442-435-35077 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | Temporarily abandonedGas | 6,680 | Feb 10, 2000 | — | — |
| Deberry a #5142-435-35078 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,680 | Feb 10, 2000 | — | — |
| Meckel #4042-435-35067 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,090 | Feb 9, 2000 | — | — |
| Meckel #4342-435-35068 | Enervest Operating L.L.C. | Sutton, TXSonora (Canyon Upper) | PluggedGas | 6,290 | Feb 9, 2000 | — | — |
| Meckel #4242-435-35069 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 5,980 | Feb 9, 2000 | — | — |
| Meckel #4142-435-35070 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,055 | Feb 9, 2000 | — | — |
| Mayer #2542-435-35071 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,400 | Feb 9, 2000 | — | — |
| Mayer #2642-435-35072 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,327 | Feb 9, 2000 | — | — |
| Mayer #2842-435-35073 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,517 | Feb 9, 2000 | — | — |
| Mayer #2742-435-35074 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,400 | Feb 9, 2000 | — | — |
| Bee County School Land #642-435-35075 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,300 | Feb 9, 2000 | — | — |
| Mayer #3042-435-35076 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,618 | Feb 9, 2000 | — | — |
| Mayer #2142-435-35063 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,550 | Feb 4, 2000 | — | — |
| Canyon Ranch #8316S42-435-35064 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,550 | Feb 4, 2000 | — | — |
| Canyon Ranch #1316S42-435-35065 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,450 | Feb 4, 2000 | — | — |
| Canyon Ranch #1076A42-435-35066 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,550 | Feb 4, 2000 | — | — |
| Canyon Ranch #1074A42-435-35056 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,550 | Feb 3, 2000 | — | — |
| Canyon Ranch #1315S42-435-35057 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,450 | Feb 3, 2000 | — | — |
| Canyon Ranch #8315S42-435-35058 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,550 | Feb 3, 2000 | — | — |
| Canyon Ranch #1314S42-435-35059 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,450 | Feb 3, 2000 | — | — |