| Seeligson Zone 21-B Unit #113242-273-01418 | Logas Energy LLC only | KlebergZone 21-B Trend | ActiveGas | 8,000 | May 6, 2022 | 3 | Apr 2026 |
| Seeligson Zone 21-B Unit #115742-273-01559 | Logas Energy LLC only | KlebergZone 21-B Trend | ActiveGas | 7,100 | May 2, 2022 | 1 | Apr 2026 |
| King Ranch Borregos #435 D42-273-01897 | EOG Resources Inc. only | KlebergZone 21-B Trend | PluggedGas | 7,570 | Jan 25, 2013 | 5 | Feb 2024 |
| King Ranch Borregos #332 F42-273-01332 | EOG Resources Inc. only | KlebergBorregos (Consolidated Gas) | PluggedGas | 6,975 | Aug 26, 2010 | 1 | — |
| Seeligson Unit #0146B42-249-31960 | Sue-Ann Operating L.C. only | Jim WellsSeeligson (Combined Zones) | Temporarily abandonedGas | 6,647 | Feb 26, 2010 | 4 | Apr 2026 |
| King Ranch Borregos #61042-273-31868 | EOG Resources Inc. only | KlebergBorregos (Consolidated Gas) | PluggedGas | 7,900 | Feb 9, 2009 | 5 | Oct 2011 |
| King Ranch Borregos #64042-273-32347 | Exxon Mobil Corporation only | KlebergBorregos (Consolidated Gas) | PluggedGas | 11,700 | Oct 6, 2005 | 5 | Aug 2008 |
| Tijerina H. C. de #9042-249-30122 | Chesapeake Operating Inc. only | Jim WellsT.-C.-B. ( 7000 Charles) | PluggedGas | 7,550 | Jul 30, 2004 | 4 | Dec 2004 |
| King Ranch Tijerina #J10542-273-01644 | Exxon Mobil Corporation only | KlebergT.-C.-B. (Upper Frio Cons.) | PluggedGas | 6,900 | Nov 17, 2003 | 1 | — |
| Canales P #5042-249-03146 | Sue-Ann Operating L.C. only | Jim WellsSeeligson (Consolidated) | ActiveOil | 7,550 | Mar 22, 2002 | 1 | Apr 2026 |
| King Ranch Borregos #25642-273-00458 | Exxon Mobil Corporation only | KlebergBorregos (Consolidated Gas) | PluggedGas | 8,000 | Jan 30, 2002 | 5 | Aug 2000 |
| King Ranch Borregos #15242-273-01339 | Exxon Mobil Corporation only | KlebergZone 21-B Trend | PluggedGas | 6,845 | Aug 22, 2001 | 1 | — |
| Canales A. T. #4842-249-03721 | Forest Oil Corporation only | Jim WellsTijerina-Canales-Blucher ( H-58) | PluggedGas | 7,300 | Feb 27, 2001 | 2 | Dec 1995 |
| King Ranch Borregos #6542-273-00108 | Exxon Mobil Corporation only | KlebergZone 21-B Trend | PluggedGas | 8,500 | Apr 6, 2000 | 1 | — |
| King Ranch Borregos #61642-273-31913 | Exxon Mobil Corporation only | KlebergBorregos (Consolidated Gas) | PluggedGas | 7,400 | Sep 17, 1999 | 3 | Jun 2000 |
| King Ranch Borregos #611 D42-273-31889 | Exxon Mobil Corporation only | KlebergZone 21-B Trend | PluggedGas | 7,900 | Sep 13, 1999 | 5 | Sep 2000 |
| Wilkinson A. D. #142-249-03313 | Low-End Oil LLC only | Jim WellsZone 21-B Trend | PluggedGas | 7,515 | Dec 28, 1998 | 3 | Jan 2003 |
| Borregos K. R. & Seeligson #20D42-273-01299 | EOG Resources Inc. only | KlebergBorregos (Combined Zones) | PluggedOil | 6,871 | Oct 22, 1998 | 1 | Feb 2024 |
| King Ranch Borregos #49042-273-30148 | Exxon Mobil Corporation only | KlebergBorregos (Consolidated Gas) | PluggedGas | 6,935 | Apr 29, 1998 | 1 | Apr 2004 |
| King Ranch Borregos #49842-273-30229 | Exxon Mobil Corporation only | KlebergBorregos (Consolidated Gas) | PluggedGas | 7,000 | Dec 2, 1997 | 1 | — |
| King Ranch Tijerina #j 842-249-03264 | EOG Resources Inc. only | Jim WellsZone 21-B Trend | PluggedGas | 6,658 | Aug 29, 1997 | 1 | — |
| King Ranch Borregos #291 F42-273-00459 | EOG Resources Inc. only | KlebergZone 21-B Trend | PluggedGas | 7,350 | Aug 15, 1997 | 7 | Dec 2024 |
| King Ranch Borregos #60842-273-31869 | EOG Resources Inc. only | KlebergZone 21-B Trend | PluggedGas | 7,100 | Aug 15, 1997 | 2 | Oct 1997 |
| King Ranch Borregos #547DF42-273-31256 | EOG Resources Inc. only | KlebergBorregos (Consolidated Gas) | PluggedGas | 7,500 | Apr 29, 1997 | 8 | Apr 2015 |
| King Ranch Borregos #318 F42-273-00120 | EOG Resources Inc. only | KlebergZone 21-B Trend | PluggedGas | 7,200 | Sep 9, 1996 | 3 | Feb 2024 |
| De Tijerina H. C. #1542-249-03245 | Chesapeake Operating Inc. only | Jim WellsT.-C.-B. (Upper Frio Cons.) | PluggedGas | 7,145 | Aug 14, 1996 | 2 | Jun 2007 |
| Seeligson/Zone 21-B/Unit #1190C42-273-30591 | Logas Energy LLC only | KlebergZone 21-B Trend | Temporarily abandonedGas | 6,850 | Jul 5, 1996 | 3 | Mar 2009 |
| Detijerina H. C. #2442-249-03283 | Remora Operating LLC only | Jim WellsTijerina-Canales-Blucher | PluggedOil | 7,192 | Jun 11, 1996 | 1 | Nov 2010 |
| De Tijerina #1742-249-03277 | Remora Operating LLC only | Jim WellsZone 21-B Trend | ActiveGas | 7,507 | Mar 19, 1996 | 1 | Apr 2026 |
| De Tijerina H. C. #7342-249-03638 | Remora Operating LLC only | Jim WellsT.-C.-B. (Upper Frio Cons.) | ActiveGas | 7,250 | Mar 19, 1996 | 1 | Apr 2026 |
| Seelingson Unit #011342-249-02728 | Sue-Ann Operating L.C. only | Jim WellsSeeligson (Combined Zones) | Temporarily abandonedGas | 6,647 | Jan 19, 1996 | 3 | Jan 1997 |
| King Ranch Borregos #13042-273-01138 | Exxon Corp. only | KlebergBorregos (Zone R-3 & 4) | PluggedGas | 7,267 | Aug 11, 1995 | 3 | Feb 1993 |
| Blucher C. F. H. #2342-249-03329 | Logas Energy LLC only | Jim WellsT.-C.-B. (Upper Frio Cons.) | Temporarily abandonedGas | 7,369 | Aug 3, 1995 | 2 | Sep 1996 |
| De Tijerina H. C. #33 T42-249-03298 | Remora Operating LLC only | Jim WellsT.-C.-B. ( 21-B4 W) | Shut inOil | 7,470 | Jul 17, 1995 | 1 | Nov 2004 |
| King Ranch Borregos #m 6B42-273-00415 | Exxon Mobil Corporation only | KlebergBorregos (Consolidated Gas) | PluggedGas | 6,520 | Apr 12, 1995 | 2 | Jan 1995 |
| Canales A. T. #342-249-03355 | Remora Operating LLC only | Jim WellsZone 21-B Trend (Oil) | Shut inOil | 7,587 | Mar 2, 1994 | 1 | Nov 2016 |
| King Ranch Seeligson #e 442-273-01374 | EOG Resources Inc. only | KlebergSeeligson (Consolidated) | PluggedGas | 6,850 | Sep 10, 1993 | 1 | Oct 2010 |
| Seeligson Unit #4346A42-273-01385 | Sue-Ann Operating L.C. only | KlebergSeeligson (Combined Zones) | PluggedOil | 7,003 | Aug 18, 1993 | 2 | Apr 2026 |
| King Ranch Borregos #842-273-00434 | EOG Resources Inc. only | KlebergBorregos (Consolidated Gas) | PluggedGas | 7,803 | Jun 25, 1992 | 2 | Jul 2017 |
| King Ranch Borregos #1242-273-00436 | Exxon Corp. only | KlebergZone 21-B Trend | PluggedGas | 7,501 | Dec 30, 1991 | 1 | — |
| King Ranch Borregos #247 G42-273-00457 | Exxon Corp. only | KlebergBorregos (Zone S- 5) | PluggedGas | 8,500 | Aug 13, 1991 | 1 | Feb 2024 |
| King Ranch Seeligson #c 5142-273-01378 | EOG Resources Inc. only | KlebergSeeligson (Consolidated) | PluggedGas | 7,527 | Jun 14, 1991 | 2 | Mar 2020 |
| Seeligson A.A. #1142-249-02726 | Sue-Ann Operating L.C. only | Jim WellsSeeligson (Consolidated) | ActiveOil | 6,598 | Feb 8, 1991 | 1 | Apr 2026 |
| Blucher C.F.H. #4242-249-03856 | Mobil Producing TX. & N.M. Inc. only | Jim WellsT.-C.-B. (Upper Frio Cons.) | PluggedGas | 7,445 | Dec 7, 1990 | 2 | — |
| King Ranch Borregos #480 F42-273-30074 | Exxon Corp. only | KlebergBorregos (Zone L-5) | PluggedGas | 6,995 | May 29, 1990 | 4 | — |
| King Ranch Borregos #345 F42-273-00471 | Exxon Corp. only | KlebergWildcat | PluggedGas | 7,849 | Apr 4, 1990 | 2 | Feb 2024 |
| King Ranch Seeligson #C196 F42-273-31306 | Exxon Corp. only | KlebergSeeligson (Zone 20-I-1) | PluggedGas | 7,200 | Feb 20, 1990 | 5 | — |
| Borregos K. R. & Seeligson #149 C42-273-01296 | EOG Resources Inc. only | KlebergBorregos (Combined Zones) | PluggedOil | 7,300 | Nov 3, 1989 | 1 | — |
| King Ranch Borregos #158 D42-273-01322 | Exxon Corp. only | KlebergBorregos (Zone J- 3) | PluggedGas | 7,048 | Oct 6, 1989 | 6 | — |
| Stewart-Jones No. 2 #142-249-80053 | Mobil Producing TX. & N.M. Inc. only | Jim WellsT.-C.-B. ( Brooks Upper) | PluggedGas | 7,274 | Aug 31, 1989 | 2 | Aug 1993 |