| COP SWD #142-495-34942 | Boyd & McWilliams Operating LLC only | WinklerKeystone (San Andres) | ActiveInjection | 6,670 | Jan 17, 2024 | 1 | — |
| Rust 24 #5HHZ42-495-34372 | Formentera Operations LLC only | WinklerKeystone (San Andres) | ActiveInjection | 4,844 | Jun 14, 2019 | 1 | Mar 2020 |
| Utf Moreton #1HHZ42-495-34080 | Paladin Petroleum III L.L.C. only | WinklerKeystone (San Andres) | PluggedOil | 5,500 | Mar 7, 2018 | 1 | Jun 2020 |
| K.D. 24 SWD #142-495-34075 | Boyd & McWilliams Operating LLC only | WinklerKeystone (San Andres) | ActiveInjection | 5,880 | Feb 23, 2018 | 1 | — |
| Stonegate #1HHZ42-495-33929 | Paladin Petroleum III L.L.C. only | WinklerKeystone (San Andres) | Shut inOil | 4,633 | Sep 22, 2017 | 1 | Dec 2019 |
| Y T Family Land #142-495-33591 | Paladin Petroleum III L.L.C. only | WinklerKeystone (San Andres) | ActiveInjection | 9,800 | Feb 17, 2017 | 3 | Sep 2015 |
| K.D. #1HHZ42-495-33765 | Paladin Petroleum III L.L.C. only | WinklerKeystone (San Andres) | ActiveOil | 4,625 | Dec 12, 2016 | 1 | Apr 2026 |
| Waddell #17942-495-01331 | Formentera Operations LLC only | WinklerKeystone (San Andres) | Shut inOil | 8,389 | Jul 22, 2015 | 3 | Apr 2026 |
| East Keystone (San a Holt Unit) #912HZ42-495-30339 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | Shut inOil | 4,900 | Aug 31, 2011 | 2 | Apr 2026 |
| East Keystone (San a Holt Unit) #816HZ42-495-30319 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | Shut inOil | 5,300 | Aug 30, 2011 | 2 | Apr 2026 |
| Keystone Cattle Co. #417A42-495-32354 | BCP Resources LLC only | WinklerKeystone (San Andres) | Shut inOil | 7,765 | May 6, 2011 | 5 | Apr 2026 |
| East Keystone (San a Holt Unit) #911HZ42-495-30340 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | Shut inOil | 5,450 | May 3, 2011 | 2 | Apr 2026 |
| East Keystone(san a Holt Unit) #833HHZ42-495-30318 | Formentera Operations LLC only | WinklerKeystone (San Andres) | ActiveOil | 4,297 | Apr 8, 2011 | 3 | Apr 2026 |
| Walton Estate a #542-495-32490 | Saddleback Exploration LLC only | WinklerKeystone (Yates) | PluggedGas | 5,500 | Aug 4, 2009 | 2 | May 2009 |
| Walton J. B. #5742-495-03933 | Hilcorp Energy Company only | WinklerKeystone SW. (San Andres) | Shut inOil | 8,019 | Apr 27, 2007 | 2 | Mar 2026 |
| Waddell #18942-495-01339 | Formentera Operations LLC only | WinklerKeystone (San Andres) | Shut inOil | 8,223 | Dec 11, 2006 | 1 | Apr 2026 |
| Waddell #21242-495-01361 | Formentera Operations LLC only | WinklerKeystone (San Andres) | Shut inOil | 8,378 | Sep 6, 2006 | 2 | Apr 2026 |
| Bashara M. J. #69W42-495-31700 | Hilcorp Energy Company only | WinklerKeystone (San Andres) | PluggedOil | 4,700 | Feb 12, 2003 | 2 | Apr 2026 |
| Walton J. B. #109W42-495-31806 | Hilcorp Energy Company only | WinklerKeystone (San Andres) | Shut inOil | 4,600 | Feb 7, 2003 | 2 | Mar 2026 |
| Bashara M. J. #35W42-495-03711 | Hilcorp Energy Company only | WinklerKeystone (San Andres) | PluggedOil | 4,609 | Jan 2, 2003 | 2 | Apr 2026 |
| East Keystone(san a Holt Unit) #120242-495-30342 | Merit Energy Company only | WinklerKeystone (Holt) | PluggedOil | 5,600 | Jul 16, 2002 | 1 | Aug 2015 |
| East Keystone (San a Holt Unit) #120442-495-30382 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | PluggedOil | 5,600 | Jul 16, 2002 | 1 | Apr 2026 |
| J.J. Perkins C #4A42-495-32550 | Formentera Operations LLC only | WinklerKeystone (San Andres) | Shut inOil | 5,200 | Jun 5, 2002 | 4 | Sep 2017 |
| McCutchen W.A. #8 S42-495-32895 | Teke Production LLC only | WinklerKeystone (San Andres) | Shut inOil | 4,777 | Apr 9, 2002 | 1 | Dec 2023 |
| McCutchen W.A. #6 S42-495-32896 | Teke Production LLC only | WinklerKeystone (San Andres) | Shut inOil | 4,782 | Apr 9, 2002 | 1 | Dec 2023 |
| McCutchen W.A. #7 S42-495-32897 | Teke Production LLC only | WinklerKeystone (San Andres) | PluggedOil | 5,000 | Apr 9, 2002 | 1 | Dec 2023 |
| East Keystone (San a Holt Unit) #83142-495-05303 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | Shut inOil | 10,280 | Oct 24, 2001 | 2 | Apr 2026 |
| McCutchen W.A. #4S42-495-32881 | Teke Production LLC only | WinklerKeystone (San Andres) | PluggedOil | 5,000 | Jul 24, 2001 | 1 | Dec 2023 |
| McCutchen W.A. #5S42-495-32882 | Teke Production LLC only | WinklerKeystone (San Andres) | Shut inOil | 4,794 | Jul 24, 2001 | 1 | Dec 2023 |
| East Keystone (San a Holt Unit) #80142-495-32566 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | Shut inOil | 5,200 | May 31, 2001 | 3 | Apr 2026 |
| East Keystone (San a Holt Unit) #83042-495-32592 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | ActiveInjection | 5,350 | Feb 12, 2001 | 2 | Apr 2026 |
| McCutchen W.A. #3 S42-495-32838 | Teke Production LLC only | WinklerKeystone (San Andres) | ActiveInjection | 4,781 | Feb 6, 2001 | 1 | Dec 2023 |
| East Keystone (San a Holt Unit) #70442-495-32481 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | ActiveInjection | 5,150 | Dec 20, 2000 | 3 | Apr 2026 |
| East Keystone (San a Holt Unit) #90542-495-32539 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | Shut inOil | 5,600 | Dec 20, 2000 | 2 | Apr 2026 |
| East Keystone (San a Holt Unit) #82942-495-32507 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | ActiveInjection | 5,300 | Dec 19, 2000 | 3 | Apr 2026 |
| East Keystone (San a Holt Unit) #90142-495-32594 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | ActiveInjection | 5,400 | Nov 8, 2000 | 2 | Apr 2026 |
| Trinity a Unit #142-495-32560 | Formentera Operations LLC only | WinklerKeystone (San Andres) | Shut inOil | 5,360 | May 16, 2000 | 2 | Jan 2015 |
| Walton J. B. -C- #10X42-495-32557 | Hilcorp Energy Company only | WinklerKeystone (San Andres) | PluggedOil | 5,500 | Apr 17, 2000 | 2 | Apr 2026 |
| Walton J. B. -C- #1242-495-32558 | Hilcorp Energy Company only | WinklerKeystone (San Andres) | PluggedOil | 5,400 | Apr 17, 2000 | 2 | Apr 2026 |
| Walton J. B. -C- #1142-495-32559 | Hilcorp Energy Company only | WinklerKeystone (San Andres) | ActiveOil | 5,351 | Apr 17, 2000 | 2 | Apr 2026 |
| East Keystone (San a Holt Unit) #90942-495-32763 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | ActiveInjection | 5,405 | Jul 15, 1999 | 2 | Apr 2026 |
| East Keystone (San a Holt Unit) #91342-495-32762 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | ActiveInjection | 5,403 | Jul 13, 1999 | 2 | Apr 2026 |
| East Keystone (San a Holt Unit) #120142-495-30303 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | PluggedOil | 5,285 | Aug 5, 1998 | 1 | Apr 2026 |
| East Keystone (San a Holt Unit) #91742-495-32734 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | ActiveInjection | 5,450 | Aug 5, 1998 | 1 | Apr 2026 |
| East Keystone (San a Holt Unit) #91442-495-30294 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | ActiveOil | 5,240 | Aug 11, 1997 | 1 | Apr 2026 |
| East Keystone (San a Holt Unit) #83742-495-32529 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | ActiveInjection | 5,350 | Apr 25, 1997 | 2 | Apr 2026 |
| East Keystone (San a Holt Unit) #83642-495-32530 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | ActiveOil | 5,300 | Apr 25, 1997 | 2 | Apr 2026 |
| East Keystone (San a Holt Unit) #83542-495-32531 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | ActiveInjection | 5,250 | Apr 25, 1997 | 2 | Apr 2026 |
| East Keystone (San a Holt Unit) #82142-495-32467 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | ActiveInjection | 5,300 | Apr 22, 1997 | 2 | Apr 2026 |
| East Keystone (San a Holt Unit) #40242-495-32549 | Formentera Operations LLC only | WinklerKeystone (Consolidated) | ActiveOil | 5,200 | Apr 9, 1997 | 2 | Apr 2026 |