| Shannon 52 #1342-435-36569 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,009 | Nov 19, 2003 | — | — |
| Aldwell Winnie R. Trust #1142-435-36570 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,600 | Nov 19, 2003 | — | — |
| Davis E #1642-435-36562 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,211 | Nov 17, 2003 | — | — |
| Mayfield 39 #1442-435-36563 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,451 | Nov 17, 2003 | — | — |
| Brown/Whitehead 2 #1242-435-36561 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,723 | Nov 14, 2003 | — | — |
| Baker Friess #3__42-435-36556 | Delray Oil, Inc.permitted by · no operator of record | Sutton, TX | Plugged | 3,400 | Nov 13, 2003 | — | — |
| Wilson Duke #173942-435-36560 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,772 | Nov 13, 2003 | — | — |
| Mayfield 41 #642-435-36557 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,527 | Nov 12, 2003 | — | — |
| Canyon Ranch 104 #17S42-435-36558 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,450 | Nov 12, 2003 | — | — |
| Canyon Ranch 115 #13S42-435-36559 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 5,400 | Nov 12, 2003 | — | — |
| Lancaster 155 #242-435-36553 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 7,501 | Nov 10, 2003 | — | — |
| Brown/Whitehead 2 #2342-435-36554 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,900 | Nov 10, 2003 | — | — |
| Richardson 138 #1142-435-36555 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,311 | Nov 10, 2003 | — | — |
| Kiser #942-435-36528 | R2Q Operating LLC only | Sutton, TXDenison (Strawn) | ActiveGas | 9,122 | Nov 7, 2003 | — | — |
| Canyon Ranch #9311S42-435-36549 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,400 | Nov 7, 2003 | — | — |
| Brown/Whitehead 2 #1842-435-36550 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 9,250 | Nov 7, 2003 | — | — |
| Davis #1642-435-36551 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,261 | Nov 7, 2003 | — | — |
| Canyon Ranch 106 #11S42-435-36552 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 5,450 | Nov 7, 2003 | — | — |
| Kiser #842-435-36527 | R2Q Operating LLC only | Sutton, TXDenison (Strawn) | ActiveGas | 9,130 | Nov 6, 2003 | — | — |
| Kiser #742-435-36529 | R2Q Operating LLC only | Sutton, TXDenison (Strawn) | ActiveGas | 9,200 | Nov 6, 2003 | — | — |
| Davis D #1342-435-36546 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,130 | Nov 6, 2003 | — | — |
| Duke Wilson 188 #1342-435-36547 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,810 | Nov 6, 2003 | — | — |
| Mayfield 34 #1242-435-36548 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,395 | Nov 6, 2003 | — | — |
| Hull #960242-435-36544 | Silver Oil & Gas Inc. only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,200 | Nov 5, 2003 | — | — |
| Hull #960342-435-36545 | Silver Oil & Gas Inc. only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 5,849 | Nov 5, 2003 | — | — |
| Mayer #4842-435-36542 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,508 | Nov 4, 2003 | — | — |
| Richardson 139 #942-435-36543 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,350 | Nov 4, 2003 | — | — |
| Canyon Ranch #8213S42-435-36540 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 5,400 | Nov 3, 2003 | — | — |
| Duke Wilson 21 1/2 #542-435-36541 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 9,350 | Nov 3, 2003 | — | — |
| Canyon Ranch #835X42-435-36539 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,400 | Oct 31, 2003 | — | — |
| Glasscock Lillian Bell #3206X42-435-36538 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,471 | Oct 30, 2003 | — | — |
| Tom Mitchell 2 #542-435-36536 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 8,467 | Oct 29, 2003 | — | — |
| Canyon Ranch #2071 S42-435-36537 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 6,526 | Oct 29, 2003 | — | — |
| Mayfield 32 #842-435-36534 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,664 | Oct 24, 2003 | — | — |
| Deberry #1742-435-36535 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,300 | Oct 24, 2003 | — | — |
| Mayer #1A42-435-36530 | Zachry Oil and Gas Properties only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,062 | Oct 23, 2003 | — | — |
| Mitchell Tom 1 #842-435-36533 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,472 | Oct 23, 2003 | — | — |
| Barton #1642-435-36531 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,718 | Oct 22, 2003 | — | — |
| Deberry-Berger Unit #1742-435-36532 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,400 | Oct 22, 2003 | — | — |
| Cauthorn Mack 112 #1042-435-36501 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 6,530 | Oct 17, 2003 | — | — |
| Fawcett Bobbie H. #1042-435-36522 | Upp Operating LLC only | Sutton, TXSawyer (Strawn North) | ActiveGas | 8,305 | Oct 10, 2003 | — | — |
| Fawcett Bobbie H. #942-435-36523 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,560 | Oct 10, 2003 | — | — |
| Fawcett Randee Tust C #942-435-36524 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,621 | Oct 10, 2003 | — | — |
| Deberry a #6642-435-36525 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,750 | Oct 10, 2003 | — | — |
| Deberry a #7542-435-36526 | Upp Operating LLC only | Sutton, TXSonora (Canyon Upper) | ActiveGas | 6,400 | Oct 10, 2003 | — | — |
| Randee Fawcett Trust #842-435-36514 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,070 | Oct 7, 2003 | — | — |
| Canyon Ranch #9317S42-435-36517 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,500 | Oct 7, 2003 | — | — |
| Canyon Ranch #925S42-435-36518 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 5,500 | Oct 7, 2003 | — | — |
| Canyon Ranch 115 #12S42-435-36519 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | Temporarily abandonedGas | 5,450 | Oct 7, 2003 | — | — |
| Vanderstucken J. M. #942-435-36520 | Upp Operating LLC only | Sutton, TXSawyer (Canyon) | ActiveGas | 8,818 | Oct 7, 2003 | — | — |