| Pfluger 85 #2042-435-35396 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,450 | Mar 1, 2001 | — | — |
| Shurley 99 #1742-435-35397 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,600 | Mar 1, 2001 | — | — |
| Shurley 110 #1042-435-35398 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,050 | Mar 1, 2001 | — | — |
| McMillian Leo H. 108 #1742-435-35391 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,600 | Feb 26, 2001 | — | — |
| Pfluger 105 #1842-435-35393 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,558 | Feb 26, 2001 | — | — |
| Davis C #1242-435-35392 | Enervest Operating L.L.C. | Sutton, TXSonora (Canyon Upper) | PluggedGas | 7,000 | Feb 23, 2001 | — | — |
| Davis C #1442-435-35385 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | Temporarily abandonedGas | 6,818 | Feb 22, 2001 | — | — |
| Davis C #942-435-35386 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,844 | Feb 22, 2001 | — | — |
| Mayer #3642-435-35387 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,550 | Feb 22, 2001 | — | — |
| Meckel a #1642-435-35388 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | Temporarily abandonedGas | 6,435 | Feb 22, 2001 | — | — |
| Meckel a #1242-435-35389 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,680 | Feb 22, 2001 | — | — |
| Meckel a #1742-435-35390 | Upp Operating LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,816 | Feb 22, 2001 | — | — |
| Cusenbary 36 #242-435-35344 | Dreyfus, Louis Natural Gas Corp | Sutton, TX | Not on schedule | 5,400 | Feb 21, 2001 | — | — |
| Allison #142-435-35384 | Cyclone Exploration Inc. | Sutton, TXMajor Que Nada (Strawn) | PluggedGas | 6,800 | Feb 21, 2001 | — | — |
| Mayer #4342-435-35380 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,400 | Feb 16, 2001 | — | — |
| Mayer #4242-435-35381 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,402 | Feb 16, 2001 | — | — |
| Mayer #4142-435-35382 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,500 | Feb 16, 2001 | — | — |
| Mayer #3742-435-35383 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,400 | Feb 16, 2001 | — | — |
| Shurley #5942-435-35376 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,207 | Feb 15, 2001 | — | — |
| Shurley #6542-435-35377 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,132 | Feb 15, 2001 | — | — |
| Shurley #6842-435-35378 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,105 | Feb 15, 2001 | — | — |
| Shurley #6442-435-35379 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,239 | Feb 15, 2001 | — | — |
| Miers a #140942-435-35375 | Robert C. Brower LLC | Sutton, TXSonora (Canyon Upper) | ActiveGas | 5,779 | Feb 14, 2001 | — | — |
| Glasscock H. E. Etal #29342-435-35371 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,700 | Feb 12, 2001 | — | — |
| Glasscock Lillian Bell #320342-435-35372 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 7,601 | Feb 12, 2001 | — | — |
| Mayer #3942-435-35373 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,550 | Feb 12, 2001 | — | — |
| Mayer #4442-435-35374 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,550 | Feb 12, 2001 | — | — |
| Mayer #3842-435-35368 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,450 | Feb 8, 2001 | — | — |
| Mayer #4042-435-35369 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,550 | Feb 8, 2001 | — | — |
| Sawyer 112 #1742-435-35370 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,750 | Feb 8, 2001 | — | — |
| Glasscock H. E. 28 #242-435-35367 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,632 | Feb 5, 2001 | — | — |
| Hudspeth I #442-435-35366 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,516 | Feb 2, 2001 | — | — |
| David 109 #1742-435-35358 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,481 | Feb 1, 2001 | — | — |
| David 109 #1842-435-35359 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,550 | Feb 1, 2001 | — | — |
| McMillian Leo H. -11- #1742-435-35361 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,575 | Feb 1, 2001 | — | — |
| McMillan W. B. 14 #1842-435-35362 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,500 | Feb 1, 2001 | — | — |
| Shurley 94 #1042-435-35363 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,150 | Feb 1, 2001 | — | — |
| Shurley 95 #942-435-35364 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,250 | Feb 1, 2001 | — | — |
| Shurley 96 #1142-435-35365 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,350 | Feb 1, 2001 | — | — |
| Sawyer 128 #1642-435-35355 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 7,150 | Jan 30, 2001 | — | — |
| Jones 120 #1742-435-35356 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 6,400 | Jan 30, 2001 | — | — |
| Cusenbary 71 #242-435-35340 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,450 | Jan 29, 2001 | — | — |
| Hudspeth 53 #242-435-35354 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,475 | Jan 24, 2001 | — | — |
| Glasscock Lillian Bell #320242-435-35352 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,750 | Jan 22, 2001 | — | — |
| Nicks Gerald #442-435-35353 | Upp Operating LLC | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,550 | Jan 22, 2001 | — | — |
| Hudspeth I #242-435-35349 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,600 | Jan 18, 2001 | — | — |
| Hudspeth H #342-435-35350 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,650 | Jan 18, 2001 | — | — |
| Glasscock L. B. #29442-435-35351 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 8,500 | Jan 18, 2001 | — | — |
| Cusenbary 71 #442-435-35347 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,500 | Jan 16, 2001 | — | — |
| Cusenbary 71 #1342-435-35348 | Upp Operating LLC | Sutton, TXSawyer (Canyon) | ActiveGas | 5,430 | Jan 16, 2001 | — | — |