| Kennedy Verna #142-289-31147 | Atlas Operating LLC | Leon, TXBear Grass (Travis Peak) | ActiveGas | 10,100 | Aug 30, 1991 | — | — |
| Thompson B #442-423-31335 | Atlas Operating LLC | Smith, TXChapel Hill (Pettit) | ActiveOil | 8,714 | Jul 24, 1991 | — | — |
| South Pena Creek Unit #49042-127-33017 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | Shut inOil | 3,420 | Jul 16, 1991 | — | — |
| South Pena Creek Unit #48942-127-33018 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveOil | 3,332 | Jul 16, 1991 | — | — |
| South Pena Creek Unit #49142-127-33019 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | Shut inOil | 3,442 | Jul 16, 1991 | — | — |
| Bennett Mills Estate Fee #2342-047-00421 | Atlas Operating LLC | Brooks, TXMills Bennett (Consolidated) | PluggedOil | 6,240 | Jul 10, 1991 | — | — |
| Thompson B #342-423-30572 | Atlas Operating LLC | Smith, TXChapel Hill (Pettit) | PluggedOil | 8,700 | Jun 21, 1991 | — | — |
| East Pena Creek Unit #20542-127-33020 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | Shut inOil | 3,412 | May 30, 1991 | — | — |
| Hidalgo-Willacy #642-215-31975 | Atlas Operating LLC | Hidalgo, TXTexan Gardens-Tabasco N. (Cons) | ActiveGas | 9,150 | May 30, 1991 | — | — |
| South Pena Creek Unit #49442-127-33013 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveInjection | 3,405 | May 29, 1991 | — | — |
| South Pena Creek Unit #49342-127-33014 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | Shut inOil | 3,321 | May 29, 1991 | — | — |
| South Pena Creek Unit #49242-127-33015 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveInjection | 3,338 | May 29, 1991 | — | — |
| East Pena Creek Unit #4642-127-33016 | Atlas Operating LLC | Dimmit, TXPena Creek (San Miguel 3RD) | ActiveOil | 3,489 | May 29, 1991 | — | — |
| Lee-Hefley #10542-483-31257 | Atlas Operating LLC | Wheeler, TXLott Ranch (14500) | Temporarily abandonedGas | 15,060 | May 29, 1991 | — | — |
| Bennett Mills Estate Fee #842-047-00388 | Atlas Operating LLC | Brooks, TXMills Bennett (Consolidated) | Shut inOil | 6,000 | May 24, 1991 | — | — |
| Katz (Strawn) Unit #346242-433-32698 | Atlas Operating LLC | Stonewall, TXKatz (Strawn) | PluggedOil | 5,050 | Apr 8, 1991 | — | — |
| Petty E. #142-353-32165 | Atlas Operating LLC | Nolan, TXE. A. (Dolomite) | PluggedOil | 6,500 | Apr 4, 1991 | — | — |
| Hinrichs-Rust #142-451-00641 | Atlas Operating LLC | Tom Green, TXMurray-Rust (Strawn) | PluggedOil | 4,650 | Mar 29, 1991 | — | — |
| Reinecke Unit #23542-033-31394 | Atlas Operating LLC | Borden, TXReinecke | Shut inOil | 6,807 | Mar 14, 1991 | — | — |
| Black-Bass #342-429-35268 | Atlas Operating LLC | Stephens, TXStephens County Regular | ActiveOil | 3,587 | Feb 11, 1991 | — | — |
| Rugeley Gas Unit #3 U42-321-00946 | Atlas Operating LLC | Matagorda, TXBay City East ( 9900 B) | Temporarily abandonedGas | 12,602 | Jan 22, 1991 | — | — |
| Black Bros. #242-429-35254 | Atlas Operating LLC | Stephens, TXStephens County Regular | PluggedOil | 3,500 | Nov 30, 1990 | — | — |
| Reinecke Unit #21242-033-31495 | Atlas Operating LLC | Borden, TXReinecke | Shut inOil | 6,928 | Nov 28, 1990 | — | — |
| Metzger Gas Unit #542-321-02810 | Atlas Operating LLC | Matagorda, TXBay City East (8150 FB-A) | ActiveGas | 8,601 | Nov 20, 1990 | — | — |
| Barron Ella D. Gas Unit #442-289-31117 | Atlas Operating LLC | Leon, TXJewett (Pettit) | ActiveGas | 9,880 | Nov 16, 1990 | — | — |
| Black-Bass #242-429-35239 | Atlas Operating LLC | Stephens, TXStephens County Regular | ActiveOil | 3,300 | Oct 24, 1990 | — | — |
| Barron Ella D. Gas Unit #342-289-31095 | Atlas Operating LLC | Leon, TXJewett (Pettit) | ActiveGas | 9,950 | Sep 7, 1990 | — | — |
| Clute M.G. Gas Unit #342-289-31097 | Atlas Operating LLC | Leon, TXJewett (Pettit) | ActiveGas | 9,950 | Sep 7, 1990 | — | — |
| Scott A.J. Gas Unit #342-289-31098 | Atlas Operating LLC | Leon, TXJewett (Pettit) | ActiveGas | 10,010 | Sep 7, 1990 | — | — |
| Reinecke Unit #20742-033-31470 | Atlas Operating LLC | Borden, TXReinecke | Shut inOil | 7,022 | Sep 4, 1990 | — | — |
| Reinecke Unit #20142-033-31471 | Atlas Operating LLC | Borden, TXReinecke | PluggedOil | 7,000 | Sep 4, 1990 | — | — |
| Reinecke Unit #22042-033-31472 | Atlas Operating LLC | Borden, TXReinecke | Shut inOil | 7,020 | Sep 4, 1990 | — | — |
| Kirkland P. J. #142-499-00239 | Atlas Operating LLC | Wood, TXQuitman (Ector-Austin Chalk) | PluggedOil | 6,356 | Aug 22, 1990 | — | — |
| Reinecke Unit #20342-033-31467 | Atlas Operating LLC | Borden, TXReinecke | Shut inOil | 6,995 | Aug 21, 1990 | — | — |
| Katz (Strawn) Unit #222142-269-32002 | Atlas Operating LLC | King, TXKatz (Strawn) | PluggedOil | 5,300 | Aug 14, 1990 | — | — |
| Clute M. G. Gas Unit #242-289-31088 | Atlas Operating LLC | Leon, TXJewett (Pettit) | ActiveGas | 9,950 | Aug 14, 1990 | — | — |
| Scott A.J. Gas Unit #242-289-31086 | Atlas Operating LLC | Leon, TXJewett (Pettit) | ActiveGas | 9,950 | Aug 10, 1990 | — | — |
| Barron Ella D. Gas Unit #242-289-31087 | Atlas Operating LLC | Leon, TXJewett (Pettit) | ActiveGas | 10,000 | Aug 10, 1990 | — | — |
| Reinecke Unit #28542-033-31331 | Atlas Operating LLC | Borden, TXReinecke | Shut inOil | 6,750 | Jul 16, 1990 | — | — |
| Lenderman #242-253-33621 | Atlas Operating LLC | Jones, TXLewis Steffens | Shut inOil | 2,190 | Jul 2, 1990 | — | — |
| Clute #1-C42-289-31078 | Atlas Operating LLC | Leon, TXJewett (Pettit) | ActiveGas | 10,600 | Jun 26, 1990 | — | — |
| Katz (Strawn) Unit #31142-433-01616 | Atlas Operating LLC | Stonewall, TXKatz (Strawn) | PluggedOil | 5,105 | Jun 18, 1990 | — | — |
| Black-Bass #142-429-35207 | Atlas Operating LLC | Stephens, TXStephens County Regular | ActiveOil | 3,306 | Jun 1, 1990 | — | — |
| Whiteman et al #242-073-30778 | Atlas Operating LLC | Cherokee, TXSouthern Pine (Travis Peak) | ActiveGas | 10,916 | May 25, 1990 | — | — |
| Cree Sykes Unit #71942-399-03480 | Atlas Operating LLC | Runnels, TXCree-Sykes (Gardner Upper) | Shut inOil | 3,953 | May 22, 1990 | — | — |
| Katz (Strawn) Unit #156142-207-00500 | Atlas Operating LLC | Haskell, TXKatz (Strawn) | PluggedOil | 5,197 | Apr 26, 1990 | — | — |
| Nolan D Fee #142-353-32135 | Atlas Operating LLC | Nolan, TXE. A. (Dolomite) | ActiveOil | 6,186 | Mar 19, 1990 | — | — |
| Heard Gas Unit #442-215-31929 | Atlas Operating LLC | Hidalgo, TXTexan Gardens-Tabasco N. (Cons) | ActiveGas | 10,550 | Mar 2, 1990 | — | — |
| Edinburg Improvement Association #142-215-31923 | Atlas Operating LLC | Hidalgo, TXTexan Gardens-Tabasco N. (Cons) | ActiveGas | 10,600 | Feb 21, 1990 | — | — |
| Petty -a- #342-353-32131 | Atlas Operating LLC | Nolan, TXE. A. (Dolomite) | PluggedOil | 6,500 | Feb 8, 1990 | — | — |