| Bonner #442-161-33092 | Atlas Operating LLC | Freestone, TXLoper (Cotton Valley Lime) | ActiveGas | 12,203 | Oct 12, 2004 | — | — |
| Husky #1742-383-35469 | Atlas Operating LLC | Reagan, TXPrice (Grayburg) | ActiveOil | 2,756 | Oct 12, 2004 | — | — |
| Lopez G. G. #242-047-32048 | Atlas Operating LLC | Brooks, TXEncinitas (Lower Vicksburg) | ActiveGas | 9,700 | Oct 8, 2004 | — | — |
| Temple-Inland III #3HZ42-225-31032 | Atlas Operating LLC | Houston, TXDecker Switch (Pettit) | ActiveGas | 10,017 | Sep 30, 2004 | — | — |
| Hurta #242-157-32235 | Atlas Operating LLC | Fort Bend, TXNeedville | Shut inOil | 6,010 | Sep 27, 2004 | — | — |
| Lopez G. G. #142-047-32020 | Atlas Operating LLC | Brooks, TXEncinitas (Lower Vicksburg) | ActiveGas | 11,070 | Sep 17, 2004 | — | — |
| Husky #2142-383-35471 | Atlas Operating LLC | Reagan, TXPrice (Grayburg) | Shut inOil | 2,693 | Sep 3, 2004 | — | — |
| Katz (Strawn) Unit #1442HZ42-433-32436 | Atlas Operating LLC | Stonewall, TXKatz (Strawn) | PluggedOil | 5,820 | Sep 2, 2004 | — | — |
| Temple-Inland II #2HZ42-225-31030 | Atlas Operating LLC | Houston, TXDecker Switch (Pettit) | ActiveGas | 10,240 | Aug 6, 2004 | — | — |
| Pena Creek Unit #18642-127-33250 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveOil | 3,250 | Jul 30, 2004 | — | — |
| Pena Creek Unit #13142-127-33245 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveOil | 3,320 | Jul 19, 2004 | — | — |
| Pena Creek Unit #17042-127-33246 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | Shut inOil | 3,310 | Jul 8, 2004 | — | — |
| Pena Creek Unit #16742-127-33243 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveOil | 3,600 | Jun 23, 2004 | — | — |
| Pena Creek Unit #13042-127-33244 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | Shut inOil | 3,500 | Jun 23, 2004 | — | — |
| Lamkin C. W. #542-353-32827 | Atlas Operating LLC | Nolan, TXHylton NW. (Cambrian) | PluggedOil | 6,500 | Jun 22, 2004 | — | — |
| Pena Creek Unit #16342-127-33242 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveOil | 3,340 | Jun 15, 2004 | — | — |
| Hickey #642-325-33590 | Atlas Operating LLC | Medina, TXAdams (Olmos Navarro) | Temporarily abandonedGas | 1,140 | Jun 8, 2004 | — | — |
| Bonner #342-161-32998 | Atlas Operating LLC | Freestone, TXLoper (Cotton Valley Lime) | ActiveGas | 12,200 | May 18, 2004 | — | — |
| Pena Creek Unit #8842-127-33240 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveOil | 3,330 | May 14, 2004 | — | — |
| Pena Creek Unit #8642-127-33239 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | Shut inOil | 3,320 | May 13, 2004 | — | — |
| Pena Creek Unit #8742-127-33241 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveOil | 3,320 | May 13, 2004 | — | — |
| Pena Creek Unit #15342-127-33238 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | Shut inOil | 3,500 | May 3, 2004 | — | — |
| Doyle Truitt #242-497-35582 | Atlas Operating LLC | Wise, TXNewark East (Barnett Shale) | ActiveOil | 8,475 | Apr 15, 2004 | — | — |
| Jack #4142-415-34091 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | Shut inOil | 3,530 | Apr 8, 2004 | — | — |
| Jack #33W42-415-34087 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | ActiveInjection | 3,530 | Apr 6, 2004 | — | — |
| Jack #34W42-415-34088 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | ActiveInjection | 3,530 | Apr 6, 2004 | — | — |
| Jack #35W42-415-34089 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | Shut inOil | 3,525 | Apr 6, 2004 | — | — |
| Jack #4042-415-34090 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | Shut inOil | 3,550 | Apr 6, 2004 | — | — |
| McLaughlin Acct. 2 #141W42-415-34070 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | Shut inOil | 3,970 | Apr 1, 2004 | — | — |
| Thurston #1442-415-34072 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | Shut inOil | 3,555 | Apr 1, 2004 | — | — |
| McLaughlin Acct. 1 #13342-415-34081 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | Shut inOil | 3,540 | Apr 1, 2004 | — | — |
| McLaughlin Acct. 1 #137W42-415-34082 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | ActiveInjection | 3,535 | Apr 1, 2004 | — | — |
| McLaughlin Acct. 1 #138W42-415-34083 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | Shut inOil | 3,550 | Apr 1, 2004 | — | — |
| Jack #3142-415-34084 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | ActiveInjection | 3,540 | Mar 31, 2004 | — | — |
| Jack #32W42-415-34085 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | ActiveInjection | 3,525 | Mar 31, 2004 | — | — |
| Gertie #16W42-415-34076 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | PluggedOil | 3,500 | Mar 16, 2004 | — | — |
| Gertie #17W42-415-34077 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | ActiveInjection | 3,525 | Mar 16, 2004 | — | — |
| McLaughlin Acct. 1 #13442-415-34073 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | ActiveOil | 3,540 | Mar 11, 2004 | — | — |
| Jack #42W42-415-34074 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | ActiveInjection | 3,540 | Mar 11, 2004 | — | — |
| McLaughlin Acct. 2 #13942-415-34068 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | ActiveInjection | 3,985 | Mar 5, 2004 | — | — |
| McLaughlin Acct. 2 #14042-415-34069 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | Shut inOil | 3,976 | Mar 5, 2004 | — | — |
| McLaughlin Acct. 2 #142W42-415-34071 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | Shut inOil | 3,990 | Mar 5, 2004 | — | — |
| McLaughlin Acct. 1 #13042-415-33927 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | Shut inOil | 7,850 | Mar 1, 2004 | — | — |
| Adams H. E. -C- #1642-103-34981 | Atlas Operating LLC | Crane, TXDune East (Wolfcamp) | Shut inOil | 8,062 | Feb 18, 2004 | — | — |
| Bennett Mills Estate Fee #6942-047-32129 | Atlas Operating LLC | Brooks, TXMills Bennett (Consolidated) | Temporarily abandonedGas | 4,760 | Feb 13, 2004 | — | — |
| Robertson-Mulholland #742-383-35376 | Atlas Operating LLC | Reagan, TXPrice (Grayburg) | ActiveOil | 2,664 | Feb 9, 2004 | — | — |
| Ball Fred #1042-383-35377 | Atlas Operating LLC | Reagan, TXPrice (Grayburg) | ActiveOil | 2,650 | Feb 2, 2004 | — | — |
| Ball Fred #1142-383-35378 | Atlas Operating LLC | Reagan, TXPrice (Grayburg) | Shut inOil | 2,663 | Feb 2, 2004 | — | — |
| Robertson-Mulholland #842-383-35374 | Atlas Operating LLC | Reagan, TXPrice (Grayburg) | ActiveOil | 2,665 | Jan 22, 2004 | — | — |
| McLaughlin Acct. 1 #13542-415-34052 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | PluggedOil | 3,700 | Jan 22, 2004 | — | — |