| Sievers Unit A O-2-10110 | Burlington Resources O & G Co LP only | Eagleville (Eagle Ford-2) | De Witt | 9 | 2.72M | 5.94M | Nov 2012 – Aug 2026 |
| Sievers a Unit G-10-282695 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 694K | 4.36M | May 2017 – Aug 2026 |
| Sievers State Unit 2-1 O-10-48311 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 4 | 685K | 2.37M | Aug 2016 – Aug 2026 |
| Sievers 2-35 South Unit G-10-287434 | Coterra Energy Operating Co. only | Phantom (Wolfcamp) | Reeves | 1 | 633K | 2.57M | Apr 2019 – Aug 2026 |
| Sievers State Unit 2-1 G-10-287317 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 550K | 2.27M | Jun 2019 – Aug 2026 |
| Sievers 2-35 North Unit E G-10-287339 | Coterra Energy Operating Co. only | Phantom (Wolfcamp) | Reeves | 1 | 543K | 2.68M | Apr 2019 – Aug 2026 |
| Sievers Unit 2-29 O-10-48069 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 2 | 495K | 1.42M | Jul 2016 – Aug 2026 |
| Sievers 2-35 South Unit G-10-295683 | Coterra Energy Operating Co. only | Phantom (Wolfcamp) | Reeves | 1 | 430K | 2.28M | Oct 2023 – Aug 2026 |
| Sievers 2-35 North Unit C G-10-296122 | Coterra Energy Operating Co. only | Phantom (Wolfcamp) | Reeves | 1 | 407K | 2.19M | Oct 2023 – Aug 2026 |
| Agro-Dynamics G-3-189844 | Ballard Exploration Company,inc. only | Devers, SW (Cook Mountain) | Liberty | 1 | 389K | 5.81M | Feb 2002 – Nov 2005 |
| Sievers 2-35 South Unit G-10-295601 | Coterra Energy Operating Co. only | Phantom (Wolfcamp) | Reeves | 1 | 387K | 2.2M | Oct 2023 – Aug 2026 |
| Sievers 2-35 North Unit B G-10-296121 | Coterra Energy Operating Co. only | Phantom (Wolfcamp) | Reeves | 1 | 364K | 1.47M | Oct 2023 – Aug 2026 |
| Sievers 2-35 South Unit G-10-295682 | Coterra Energy Operating Co. only | Phantom (Wolfcamp) | Reeves | 1 | 310K | 1.32M | Oct 2023 – Aug 2026 |
| Warzecha-Sievers Ulw O-2-11581 | Burlington Resources O & G Co LP only | Eagleville (Eagle Ford-2) | De Witt | 1 | 292K | 668K | Jul 2018 – Jul 2025 |
| Sievers 2-35 O-10-46116 | Coterra Energy Operating Co. only | Phantom (Wolfcamp) | Reeves | 1 | 288K | 933K | Aug 2014 – Nov 2025 |
| Sievers Unit 2-39 G-10-279381 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 287K | 1.69M | Dec 2015 – Aug 2026 |
| Sievers 2-35 North Unit D G-10-296123 | Coterra Energy Operating Co. only | Phantom (Wolfcamp) | Reeves | 1 | 274K | 1.45M | Oct 2023 – Aug 2026 |
| Sievers Unit 2-33 O-10-48179 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 266K | 600K | Jul 2016 – Aug 2026 |
| Sievers State Unit 2-1 G-10-287319 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 254K | 1.22M | May 2019 – Aug 2026 |
| Sievers 2-35 South Unit G-10-295793 | Coterra Energy Operating Co. only | Phantom (Wolfcamp) | Reeves | 1 | 241K | 1.18M | Oct 2023 – Aug 2026 |
| Sievers 01 G-2-261037 | Marathon Oil EF LLC only | De Witt (Eagle Ford Shale) | De Witt | 1 | 220K | 1.81M | May 2011 – Mar 2022 |
| Sievers Unit A O-2-11505 | Burlington Resources O & G Co LP only | Sugarkane (Austin Chalk) | De Witt | 1 | 202K | 605K | Jul 2018 – Jul 2026 |
| Texaco Fee "C" G-3-188558 | Ballard Exploration Company,inc. only | Devers, SW (Cook Mountain) | Liberty | 1 | 172K | 8.51M | Nov 2001 – Mar 2011 |
| Daniel et Al O-3-17483 | Quail Creek Oil Corporation only | Devers (Frio 5900) | Liberty | 2 | 158K | 120K | by Jan 1993 – Aug 2026 |
| RDH Farms G-3-231762 | Ballard Exploration Company,inc. only | Devers, SW (Cook Mountain) | Liberty | 1 | 143K | 5.33M | Aug 2007 – Aug 2026 |
| Raywood Investments G-3-227054 | Ballard Exploration Company,inc. only | Devers, NW. (Lower Cook Mtn. 1) | Liberty | 1 | 142K | 881K | Mar 2006 – Jul 2008 |
| Agro-Dynamics G-3-221506 | Ballard Exploration Company,inc. only | Devers, NW. (Lower Cook Mtn. 1) | Liberty | 1 | 107K | 2.42M | Nov 2005 – Dec 2008 |
| Prospect Company G-3-208397 | Ballard Exploration Company,inc. only | Devers, SW (Cook Mountain) | Liberty | 1 | 104K | 1.09M | Oct 2003 – Nov 2005 |
| Sievers 01 G-2-268942 | Marathon Oil EF LLC only | De Witt (Eagle Ford Shale) | De Witt | 1 | 100K | 982K | Sep 2012 – Aug 2026 |
| Governor G-3-236973 | CML Exploration, LLC only | Devers (Yegua 11400) | Liberty | 1 | 87.5K | 1.98M | Feb 2008 – Oct 2015 |
| Agro-Dynamics Unit G-3-206047 | Ballard Exploration Company,inc. only | Devers, SW (Cook Mountain) | Liberty | 1 | 84.1K | 1.39M | Apr 2004 – Feb 2008 |
| Eversberg, C. R. O-2-3415 | Allegiant Resources, LLC only | Ganado, West (4700 Zone) | Jackson | 3 | 76.4K | 74.9K | by Jan 1993 – Jul 2013 |
| Evers, W. J. O-7-6274 | Linder, John Operating Co., LLC only | East Texas | Upshur | 2 | 69.1K | 194 | by Jan 1993 – Aug 2026 |
| Ladd G-3-276611 | Ballard Exploration Company,inc. only | Devers, NW. (Lower Cook Mtn. 1) | Liberty | 1 | 61.9K | 840K | Feb 2014 – Aug 2026 |
| Sievers O-2-7338 | Inland Ocean, Inc. only | Holly, East (Massive) | De Witt | 1 | 61.8K | 18 | by Jan 1993 – Nov 2007 |
| Agro-Dynamics Unit G-3-254378 | Ballard Exploration Company,inc. only | Devers, NW. (Lower Cook Mtn. 1) | Liberty | 1 | 57.3K | 3.32M | Mar 2008 – May 2014 |
| Neversuch -B- O-8-1960 | Lainco, Inc. only | Royston | Fisher | 3 | 48K | 35 | by Jan 1993 – Aug 2026 |
| Savage O-3-27593 | Rumble Energy LLC only | Wadsworth (Eversore Hazzardi) | Matagorda | 1 | 39.1K | 113K | Jul 2019 – Oct 2024 |
| Boyt G-3-215066 | Apache Corporation only | Devers, S. (Cook Mountain) | Liberty | 1 | 32K | 1.52M | Jan 2006 – Jun 2009 |
| Daniel G-3-244803 | CML Exploration, LLC only | Devers (Yegua 11400) | Liberty | 1 | 29.5K | 1.12M | Nov 2008 – Nov 2015 |
| Sievers, W.A. O-1-5096 | Bastrop Energy Group only | Luling-Branyon | Caldwell | 8 | 28.6K | 6K | by Jan 1993 – Aug 2026 |
| Johnson, Weldon & Ida Sue "A" O-11-61223 | Bevers SWD, Inc. only | Ida Sue (Strawn) | Kent | 1 | 25.9K | 922 | by Jan 1993 – Aug 2021 |
| Sievers, Johanna O-2-4716 | Chaparral Energy, L.L.C. only | Holly (Yegua 4500) | De Witt | 3 | 24.2K | 35 | by Jan 1993 – Mar 2007 |
| Evers O-7-6095 | Elms Oil Company only | East Texas | Upshur | 5 | 18.9K | 5.59K | by Jan 1993 – Jul 2026 |
| Niebuhr-Eversberg O-2-11824 | Angel Operating LLC only | Ganado, West (4700 Zone) | Jackson | 1 | 16.8K | 30.8K | Aug 2018 – Sep 2021 |
| Sievers, Gus O-2-2938 | Finaly Resources LLC only | Holly, East (Massive) | De Witt | 2 | 13.1K | 105 | by Jan 1993 – Mar 2002 |
| Daniel G-3-290227 | Ballard Exploration Company,inc. only | Devers, S. (Cook Mountain) | Liberty | 1 | 12.6K | 1.55M | Oct 2020 – Aug 2022 |
| Sievers, Edwald et Al O-2-5133 | Long Trusts, The only | Holly (Yegua 4600 Up.) | De Witt | 1 | 12.3K | 68 | by Jan 1993 – Sep 2005 |
| Sievers, Alvin F. G-2-128481 | Bettis, Boyle & Stovall only | Belitz (9000 Wilcox) | De Witt | 1 | 11K | 629K | by Jan 1993 – Mar 2015 |
| Neversuch "C" O-8-27932 | Lainco, Inc. only | Royston | Fisher | 2 | 10.4K | 0 | Jul 1996 – Apr 2007 |