| Mae Lottie #142-211-32203 | Atlas Operating LLC | HemphillHiggins S. (Tonkawa) | Shut inOil | 12,611 | Mar 12, 1998 | 2 | Oct 2015 |
| Dougherty M. P. #760742-215-32518 | Atlas Operating LLC | HidalgoTexan Gardens (7400) | PluggedOil | 9,000 | Mar 10, 1998 | 1 | Feb 2014 |
| Goldsmith J. B. #4542-499-31895 | Atlas Operating LLC | WoodQuitman | ActiveInjection | 6,513 | Mar 5, 1998 | 1 | Aug 2026 |
| Kuester Unit #2HHZ42-123-31826 | Atlas Operating LLC | De WittYoakum (Edwards) | ActiveGas | 16,500 | Mar 4, 1998 | 1 | Aug 2026 |
| Crew Unit a-342 #1 HHZ42-241-30652 | Atlas Operating LLC | JasperBrookeland (Austin Chalk 8800) | ActiveOil | 17,175 | Mar 2, 1998 | 1 | May 2026 |
| Sykes Albert Unit #342-399-34591 | Atlas Operating LLC | RunnelsCree-Sykes (Gardner Upper) | PluggedOil | 5,700 | Feb 27, 1998 | 1 | Nov 2011 |
| Cree Sykes Unit #90542-399-34587 | Atlas Operating LLC | RunnelsCree-Sykes (Gardner Upper) | PluggedOil | 5,700 | Feb 10, 1998 | 1 | Aug 2026 |
| Swantner #242-215-32369 | Atlas Operating LLC | HidalgoTexan Gardens-Tabasco N. (Cons) | Temporarily abandonedGas | 8,000 | Nov 7, 1997 | 2 | Aug 2012 |
| Reinecke Unit #25442-033-31466 | Atlas Operating LLC | BordenReinecke | Shut inOil | 6,859 | Oct 24, 1997 | 2 | Aug 2026 |
| Pearl Unit a-340 #1HZ42-241-30644 | Atlas Operating LLC | JasperBrookeland (Austin Chalk 8800) | ActiveGas | 16,381 | Oct 2, 1997 | 1 | Jun 2026 |
| Peters/Sklar #142-239-32968 | Atlas Operating LLC | JacksonEl Toro Max (AY-3) | PluggedGas | 11,500 | Sep 30, 1997 | 3 | Feb 2013 |
| Reinecke Unit #1SD42-033-31690 | Atlas Operating LLC | BordenReinecke | Shut inOil | 4,100 | Aug 8, 1997 | 1 | Aug 2026 |
| Reinecke Unit #2SD42-033-31691 | Atlas Operating LLC | BordenReinecke | Shut inOil | 4,100 | Aug 8, 1997 | 1 | Aug 2026 |
| Reinecke Unit #3SD42-033-31692 | Atlas Operating LLC | BordenReinecke | Shut inOil | 4,100 | Aug 8, 1997 | 1 | Aug 2026 |
| Reinecke Unit #4SD42-033-31693 | Atlas Operating LLC | BordenReinecke | PluggedOil | 4,100 | Aug 8, 1997 | 1 | Aug 2026 |
| Bennett Mills Estate Fee #7HZ42-047-00403 | Atlas Operating LLC | BrooksMills Bennett (Consolidated) | PluggedOil | 6,100 | Jul 21, 1997 | 4 | Aug 2026 |
| Hidalgo Willacy #14B42-215-32096 | Atlas Operating LLC | HidalgoTexan Gardens-Tabasco N. (Cons) | Temporarily abandonedGas | 9,927 | Jul 21, 1997 | 4 | Jun 2023 |
| Hill Ranch #142-161-31442 | Atlas Operating LLC | FreestoneMarsters N.E. | ActiveGas | 11,577 | Jul 14, 1997 | 1 | Jun 2026 |
| Arco Fee Upr a-19 #1 HHZ42-241-30640 | Atlas Operating LLC | JasperBrookeland (Austin Chalk 8800) | ActiveOil | 16,764 | Jul 11, 1997 | 1 | Mar 2025 |
| West Hylton #142-353-32569 | Atlas Operating LLC | NolanHylton NW. (Cambrian) | PluggedOil | 6,700 | Jul 3, 1997 | 1 | — |
| Corby #1 Gas Unit #142-289-31269 | Atlas Operating LLC | LeonBear Grass (Travis Peak) | ActiveGas | 15,700 | Jun 19, 1997 | 2 | Jun 2026 |
| Helmcamp #242-289-31270 | Atlas Operating LLC | LeonJewett (Travis Peak) | ActiveGas | 10,416 | Jun 13, 1997 | 1 | Jun 2026 |
| Bennett Mills Estate Fee #5942-047-31767 | Atlas Operating LLC | BrooksMills Bennett (Consolidated) | PluggedOil | 5,000 | May 30, 1997 | 1 | Aug 2026 |
| Mills Bennett Estate Fee #6042-047-31764 | Atlas Operating LLC | BrooksMills Bennett (Consolidated) | PluggedGas | 9,000 | May 8, 1997 | 1 | — |
| Dougherty M. P. #b 142-215-32419 | Atlas Operating LLC | HidalgoTexan Gardens-Tabasco N. (Cons) | PluggedGas | 9,000 | May 6, 1997 | 1 | Dec 2015 |
| Herrera Gregorio et al #442-311-32602 | Atlas Operating LLC | McMullenSan Miguel Creek (Wilcox Cons.) | ActiveOil | 6,100 | Apr 16, 1997 | 2 | Aug 2026 |
| Herrera Gregorio et al #742-311-32845 | Atlas Operating LLC | McMullenSan Miguel Creek (Wilcox Cons.) | PluggedOil | 6,000 | Apr 16, 1997 | 4 | Aug 2026 |
| Petty Morrow #142-353-32553 | Atlas Operating LLC | NolanWildcat | PluggedOil | 4,300 | Apr 2, 1997 | 1 | — |
| Bennett Mills Estate Fee #1NC42-047-31645 | Atlas Operating LLC | BrooksMills Bennett (Consolidated) | ActiveOil | 8,400 | Mar 3, 1997 | 4 | Aug 2026 |
| Temple-Inland Forest Unit a-41 #1HZ42-241-30634 | Atlas Operating LLC | JasperBrookeland (Austin Chalk 8800) | ActiveGas | 11,221 | Feb 13, 1997 | 2 | Jun 2026 |
| Black Ranch D #442-429-35624 | Atlas Operating LLC | StephensStephens County Regular | ActiveOil | 3,345 | Jan 22, 1997 | 1 | Aug 2026 |
| Black Ranch D #342-429-35622 | Atlas Operating LLC | StephensStephens County Regular | ActiveOil | 3,385 | Dec 23, 1996 | 1 | Aug 2026 |
| Jolly Unit #1HZ42-041-31895 | Atlas Operating LLC | BrazosGiddings (Austin Chalk Gas) | ActiveGas | 13,498 | Dec 11, 1996 | 1 | Jun 2026 |
| Arco Fee Unit a-240 #1HZ42-241-30631 | Atlas Operating LLC | JasperBrookeland (Austin Chalk 8800) | ActiveGas | 16,431 | Nov 15, 1996 | 2 | Jun 2026 |
| Blackstone Unit a-293 #2HZ42-351-30672 | Atlas Operating LLC | NewtonBrookeland (Austin Chalk 8800) | ActiveOil | 15,990 | Nov 8, 1996 | 2 | Jun 2026 |
| Urschel a #242-211-32175 | Atlas Operating LLC | HemphillCanadian NE (Douglas) | ActiveGas | 7,040 | Nov 6, 1996 | 1 | Jan 2026 |
| Black Bass a #242-429-35604 | Atlas Operating LLC | StephensStephens County Regular | PluggedOil | 3,999 | Nov 6, 1996 | 1 | Jan 2025 |
| Blackstone Unit a-897 #1 HHZ42-351-30671 | Atlas Operating LLC | NewtonBrookeland (Austin Chalk 8800) | ActiveOil | 15,809 | Nov 5, 1996 | 2 | May 2026 |
| Mills Bennett Estate #5842-047-31742 | Atlas Operating LLC | BrooksMills Bennett (Consolidated) | Temporarily abandonedGas | 8,429 | Nov 1, 1996 | 1 | Jul 2005 |
| Swantner #142-215-32122 | Atlas Operating LLC | HidalgoTexan Gardens-Tabasco N. (Cons) | Temporarily abandonedGas | 8,176 | Nov 1, 1996 | 2 | Mar 2016 |
| Black Bros. #442-429-35603 | Atlas Operating LLC | StephensStephens County Regular | PluggedOil | 3,999 | Oct 30, 1996 | 1 | May 2023 |
| East Pena Creek Unit #48W42-127-33095 | Atlas Operating LLC | DimmitPena Creek (Olmos 2350) | Shut inOil | 2,900 | Oct 14, 1996 | 1 | — |
| Lewis J. C. #242-321-02135 | Atlas Operating LLC | MatagordaDuncan Slough (Frio Cons.) | ActiveGas | 11,687 | Oct 7, 1996 | 1 | Aug 2026 |
| Temple Unit a-86 #1 HHZ42-351-30667 | Atlas Operating LLC | NewtonBrookeland (Austin Chalk 8800) | ActiveOil | 15,690 | Sep 23, 1996 | 3 | May 2026 |
| Stoddard-Lewis Unit #242-321-02142 | Atlas Operating LLC | MatagordaDuncan Slough (Frio Cons.) | Temporarily abandonedGas | 11,500 | Aug 28, 1996 | 2 | Nov 1996 |
| Blackstone Unit a-86 #2 HHZ42-351-30662 | Atlas Operating LLC | NewtonBrookeland (Austin Chalk 8800) | ActiveOil | 16,242 | Aug 26, 1996 | 3 | May 2026 |
| Kirkland-Harris #142-499-80300 | Atlas Operating LLC | WoodQuitman | Shut inOil | 6,355 | Jul 19, 1996 | 1 | Jun 2015 |
| Edingburg Improvement Assoc. #542-215-32329 | Atlas Operating LLC | HidalgoTexan Gardens-Tabasco N. (Cons) | Temporarily abandonedGas | 8,012 | Jul 16, 1996 | 2 | Sep 2023 |
| Champion Int L Unit a-1136 #1 HHZ42-351-30656 | Atlas Operating LLC | NewtonBrookeland (Austin Chalk 8800) | ActiveOil | 15,680 | Jun 28, 1996 | 2 | May 2026 |
| Hill-Lambert GU #142-161-31367 | Atlas Operating LLC | FreestoneMarsters N.E. | ActiveGas | 11,400 | Jun 11, 1996 | 1 | Jun 2026 |