| McLaughlin Acct. 1 #13642-415-34053 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | ActiveOil | 3,538 | Jan 22, 2004 | — | — |
| Jack #30W42-415-34054 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | ActiveInjection | 3,535 | Jan 22, 2004 | — | — |
| Jack #29W42-415-34055 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | Shut inOil | 3,533 | Jan 22, 2004 | — | — |
| Jack #27W42-415-34056 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | Shut inOil | 3,540 | Jan 22, 2004 | — | — |
| Jack #28W42-415-34057 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | Shut inOil | 3,533 | Jan 22, 2004 | — | — |
| Jack #26W42-415-34058 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | Shut inOil | 3,540 | Jan 22, 2004 | — | — |
| Jack #3642-415-34059 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | Shut inOil | 3,525 | Jan 22, 2004 | — | — |
| Jack #3742-415-34060 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | Shut inOil | 3,540 | Jan 22, 2004 | — | — |
| Jack #3842-415-34061 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | PluggedOil | 3,700 | Jan 22, 2004 | — | — |
| Jack #3942-415-34062 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | Shut inOil | 3,533 | Jan 22, 2004 | — | — |
| Bonner #242-161-32842 | Atlas Operating LLC | Freestone, TXLoper (Cotton Valley Lime) | ActiveGas | 12,212 | Dec 29, 2003 | — | — |
| Kennedy Lower Conglomerate Unit #90442-337-33590 | Atlas Operating LLC | Montague, TXKennedy (Congl. Lower) | ActiveOil | 6,766 | Nov 25, 2003 | — | — |
| Pena Creek Unit #8542-127-33228 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveOil | 3,420 | Oct 24, 2003 | — | — |
| Kennedy Lower Conglomerate Unit #50242-337-32981 | Atlas Operating LLC | Montague, TXKennedy (Congl. Lower) | ActiveWater Supply | 4,003 | Oct 8, 2003 | — | — |
| Kennedy Lower Conglomerate Unit #60342-337-33579 | Atlas Operating LLC | Montague, TXKennedy (Congl. Lower) | ActiveInjection | 6,835 | Oct 7, 2003 | — | — |
| Pena Creek Unit #8342-127-33227 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | Shut inOil | 3,300 | Oct 6, 2003 | — | — |
| Myers #5742-127-32097 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 2ND) | Shut inOil | 3,362 | Oct 1, 2003 | — | — |
| Lopez #542-047-32102 | Atlas Operating LLC | Brooks, TXRucias N. (FB L) | ActiveGas | 12,208 | Sep 24, 2003 | — | — |
| Pena Creek Unit #8442-127-33225 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveOil | 3,400 | Sep 23, 2003 | — | — |
| Pena Creek Unit #12842-127-33224 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveOil | 3,508 | Sep 17, 2003 | — | — |
| McLaughlin Acct. 1 #131W42-415-34028 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | ActiveInjection | 3,530 | Sep 16, 2003 | — | — |
| McLaughlin Acct. 1 #132W42-415-34029 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | ActiveInjection | 3,520 | Sep 16, 2003 | — | — |
| Jack #25W42-415-34030 | Atlas Operating LLC | Scurry, TXDiamond -M- (Clear Fork) | Shut inOil | 3,525 | Sep 16, 2003 | — | — |
| Helmcamp #342-289-31385 | Atlas Operating LLC | Leon, TXJewett (Travis Peak) | ActiveGas | 10,451 | Sep 11, 2003 | — | — |
| Williford #242-161-32752 | Atlas Operating LLC | Freestone, TXBurleson Hill (Bossier) | ActiveGas | 13,450 | Sep 3, 2003 | — | — |
| Bonner #142-161-32724 | Atlas Operating LLC | Freestone, TXLoper (Cotton Valley Lime) | ActiveGas | 12,200 | Aug 1, 2003 | — | — |
| Garcitas Ranch a #242-469-33746 | Atlas Operating LLC | Victoria, TXGarcitas Creek (6032) | ActiveGas | 7,350 | Aug 1, 2003 | — | — |
| Garrett Gas Unit #2HHZ42-123-31164 | Atlas Operating LLC | De Witt, TXYoakum (Edwards) | ActiveGas | 17,660 | Jul 28, 2003 | — | — |
| Goldsmith J. B. #5742-499-32007 | Atlas Operating LLC | Wood, TXQuitman (Eagle Ford) | ActiveOil | 4,407 | Jul 24, 2003 | — | — |
| Pena Creek Unit #8242-127-33218 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | Shut inOil | 3,310 | Jul 22, 2003 | — | — |
| Carter GU #1 #542-213-30858 | Atlas Operating LLC | Henderson, TXMalakoff South (Travis Peak) | ActiveGas | 9,466 | Jul 2, 2003 | — | — |
| East Pena Creek Unit #5342-127-33210 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | Shut inOil | 3,430 | Jun 19, 2003 | — | — |
| Pena Creek Unit #8042-127-33211 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveOil | 3,350 | Jun 19, 2003 | — | — |
| Pena Creek Unit #8142-127-33212 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveOil | 3,350 | Jun 19, 2003 | — | — |
| Goldsmith J. B. #5642-499-32000 | Atlas Operating LLC | Wood, TXQuitman | ActiveOil | 6,265 | May 30, 2003 | — | — |
| Blackstone Minerals a-342 #1HZ42-241-30625 | Atlas Operating LLC | Jasper, TXBrookeland (Austin Chalk 8800) | ActiveGas | 15,745 | May 14, 2003 | — | — |
| Guinn Gas Unit #242-289-31295 | Atlas Operating LLC | Leon, TXJewett (Pettit) | ActiveGas | 10,516 | Apr 30, 2003 | — | — |
| Goldsmith J. B. #5142-499-31903 | Atlas Operating LLC | Wood, TXQuitman | ActiveInjection | 6,500 | Apr 30, 2003 | — | — |
| Lopez G. G. #342-047-32062 | Atlas Operating LLC | Brooks, TXEncinitas (V-19) | ActiveGas | 10,600 | Apr 16, 2003 | — | — |
| Temple Industries Unit #3HHZ42-241-30572 | Atlas Operating LLC | Jasper, TXBrookeland (Austin Chalk 8800) | Temporarily abandonedGas | 11,249 | Apr 2, 2003 | — | — |
| Pena Creek Unit #7742-127-33206 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | Shut inOil | 3,330 | Mar 20, 2003 | — | — |
| Pena Creek Unit #7542-127-33201 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveWater Supply | 3,325 | Mar 18, 2003 | — | — |
| Pena Creek Unit #7842-127-33202 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveOil | 3,308 | Mar 18, 2003 | — | — |
| Pena Creek Unit #7942-127-33203 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveOil | 3,264 | Mar 18, 2003 | — | — |
| Pena Creek Unit #12742-127-33204 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveOil | 3,500 | Mar 18, 2003 | — | — |
| Pena Creek Unit #21142-127-33205 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveOil | 3,460 | Mar 18, 2003 | — | — |
| East Pena Creek Unit #4942-127-33197 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | Shut inOil | 3,430 | Mar 11, 2003 | — | — |
| East Pena Creek Unit #5042-127-33198 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | Shut inOil | 3,406 | Mar 11, 2003 | — | — |
| East Pena Creek Unit #5142-127-33199 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | Shut inOil | 3,450 | Mar 11, 2003 | — | — |
| Texan Gardens #142-215-33021 | Atlas Operating LLC | Hidalgo, TXTexan Gardens-Tabasco N. (Cons) | Temporarily abandonedGas | 12,500 | Mar 11, 2003 | — | — |