| Swantner #342-215-32379 | Atlas Operating LLC | Hidalgo, TXTexan Gardens-Tabasco N. (Cons) | ActiveGas | 9,206 | May 12, 2006 | — | — |
| Cree Sykes Unit #703142-399-34952 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | ActiveOil | 4,171 | May 11, 2006 | — | — |
| Cree Sykes Unit #504142-399-34954 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | ActiveOil | 4,186 | May 11, 2006 | — | — |
| Garrison #142-051-33623 | Atlas Operating LLC | Burleson, TXNoack Cow Herd (3460) | Shut inOil | 3,950 | May 10, 2006 | — | — |
| Burkhart Gas Unit #342-321-32112 | Atlas Operating LLC | Matagorda, TXSilverspoon (Tex SA1 Sand) | Temporarily abandonedGas | 16,650 | May 9, 2006 | — | — |
| Cree Sykes Unit #703042-399-34953 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | ActiveOil | 4,150 | May 9, 2006 | — | — |
| Pena Creek Unit #23042-127-33342 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | Shut inOil | 3,335 | May 8, 2006 | — | — |
| Bonner #1042-161-33576 | Atlas Operating LLC | Freestone, TXLoper (Bossier) | ActiveGas | 12,297 | May 8, 2006 | — | — |
| Bonner #942-161-33578 | Atlas Operating LLC | Freestone, TXLoper (Cotton Valley Lime) | ActiveGas | 12,300 | May 8, 2006 | — | — |
| Hidalgo Willacy #11B42-215-31768 | Atlas Operating LLC | Hidalgo, TXTexan Gardens-Tabasco N. (Cons) | PluggedGas | 10,200 | May 5, 2006 | — | — |
| Heard Gas Unit 2 #742-215-32036 | Atlas Operating LLC | Hidalgo, TXTexan Gardens-Tabasco N. (Cons) | ActiveGas | 8,650 | May 5, 2006 | — | — |
| Cree Sykes Unit #503542-399-34950 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | ActiveOil | 4,291 | May 2, 2006 | — | — |
| Cree Sykes Unit #201842-399-34951 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | ActiveOil | 4,786 | May 2, 2006 | — | — |
| South Pena Creek Unit #43742-127-33336 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveWater Supply | 3,383 | Apr 25, 2006 | — | — |
| South Pena Creek Unit #41742-127-33337 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveOil | 3,368 | Apr 25, 2006 | — | — |
| Grohman #242-399-34945 | Atlas Operating LLC | Runnels, TXHrubetz (Ellen) | PluggedOil | 4,700 | Apr 14, 2006 | — | — |
| Reinecke Unit #96R42-033-00249 | Atlas Operating LLC | Borden, TXReinecke | Shut inOil | 7,050 | Apr 10, 2006 | — | — |
| Reinecke Unit #287A42-033-31330 | Atlas Operating LLC | Borden, TXReinecke | ActiveOil | 7,381 | Apr 10, 2006 | — | — |
| Moore-Stafford #142-239-33370 | Atlas Operating LLC | Jackson, TXMorales North (Wilcox) | ActiveGas | 12,101 | Mar 31, 2006 | — | — |
| Grohman #142-399-34943 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | PluggedOil | 4,700 | Mar 30, 2006 | — | — |
| Cree Sykes Unit #702942-399-34944 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | ActiveOil | 4,165 | Mar 30, 2006 | — | — |
| Cree Sykes Unit #702842-399-34936 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | ActiveOil | 4,160 | Mar 16, 2006 | — | — |
| Bonner #742-161-33488 | Atlas Operating LLC | Freestone, TXLoper (Cotton Valley Lime) | ActiveGas | 12,200 | Mar 13, 2006 | — | — |
| Bonner #842-161-33489 | Atlas Operating LLC | Freestone, TXLoper (Cotton Valley Lime) | ActiveGas | 12,236 | Mar 13, 2006 | — | — |
| Hidalgo Willacy a #242-215-31575 | Atlas Operating LLC | Hidalgo, TXTexan Gardens-Tabasco N. (Cons) | ActiveGas | 8,962 | Mar 8, 2006 | — | — |
| Cree Sykes Unit #702642-399-34933 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | ActiveOil | 4,160 | Mar 6, 2006 | — | — |
| Cree Sykes Unit #603242-399-34929 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | ActiveOil | 4,330 | Mar 2, 2006 | — | — |
| Cree Sykes Unit #603642-399-34930 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | ActiveOil | 4,236 | Mar 2, 2006 | — | — |
| Cree Sykes Unit #603542-399-34931 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | ActiveOil | 4,200 | Mar 2, 2006 | — | — |
| Cree Sykes Unit #603442-399-34932 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | ActiveOil | 4,145 | Mar 2, 2006 | — | — |
| Rabke-Maspero Unit #142-311-33893 | Atlas Operating LLC | McMullen, TXSan Miguel Creek (Wilcox Cons.) | ActiveOil | 5,800 | Mar 1, 2006 | — | — |
| Cree Sykes Unit #603342-399-34928 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | ActiveOil | 4,236 | Feb 24, 2006 | — | — |
| Cree Sykes Unit #603042-399-34924 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | ActiveOil | 4,151 | Feb 13, 2006 | — | — |
| Cree Sykes Unit #170642-399-34925 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | ActiveOil | 4,154 | Feb 13, 2006 | — | — |
| Hidalgo Willacy #2B42-215-31711 | Atlas Operating LLC | Hidalgo, TXTexan Gardens-Tabasco N. (Cons) | ActiveGas | 9,350 | Feb 8, 2006 | — | — |
| Hidalgo-Willacy #1B42-215-31691 | Atlas Operating LLC | Hidalgo, TXTexan Gardens-Tabasco N. (Cons) | Temporarily abandonedGas | 9,390 | Feb 7, 2006 | — | — |
| Cree Sykes Unit #603142-399-34923 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | Shut inOil | 4,236 | Jan 31, 2006 | — | — |
| Cree Sykes Unit #170542-399-34922 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | ActiveOil | 4,208 | Jan 23, 2006 | — | — |
| Nolan D Fee #442-353-32892 | Atlas Operating LLC | Nolan, TXE. A. (Dolomite) | Shut inOil | 6,272 | Jan 20, 2006 | — | — |
| Nolan D Fee #542-353-32893 | Atlas Operating LLC | Nolan, TXE. A. (Dolomite) | Shut inOil | 6,218 | Jan 20, 2006 | — | — |
| Crossman P.G. et al #242-005-30257 | Atlas Operating LLC | Angelina, TXRaintree (Travis Peak Cons.) | ActiveGas | 15,568 | Jan 17, 2006 | — | — |
| Bluebird Ranch #142-483-32021 | Atlas Operating LLC | Wheeler, TXSilver Creek (Miss) | ActiveGas | 18,150 | Jan 11, 2006 | — | — |
| Simek-Cook Unit #142-123-32076 | Atlas Operating LLC | De Witt, TXYoakum (Wilcox 7300) | Temporarily abandonedGas | 8,996 | Jan 5, 2006 | — | — |
| Zamora S Sand GU #342-215-31756 | Atlas Operating LLC | Hidalgo, TXTexan Gardens-Tabasco N. (Cons) | ActiveGas | 9,600 | Jan 4, 2006 | — | — |
| Davis H. W. a #142-263-00709 | Atlas Operating LLC | Kent, TXClairemont (Penn. Lower) | ActiveOil | 6,786 | Jan 4, 2006 | — | — |
| Cree Sykes Unit #53742-399-34920 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | Shut inOil | 4,354 | Jan 4, 2006 | — | — |
| Lopez #442-047-32088 | Atlas Operating LLC | Brooks, TXEncinitas (V-21) | ActiveGas | 12,144 | Dec 28, 2005 | — | — |
| Cree Sykes Unit #503642-399-34911 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | Shut inOil | 4,475 | Dec 22, 2005 | — | — |
| Lewis J. C. #342-321-02136 | Atlas Operating LLC | Matagorda, TXDuncan Slough (Frio Cons.) | ActiveGas | 11,533 | Dec 20, 2005 | — | — |
| Bonner #642-161-33445 | Atlas Operating LLC | Freestone, TXLoper (Cotton Valley Lime) | ActiveGas | 12,500 | Dec 19, 2005 | — | — |