| M. Koopmann Unit A G-2-282723 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 1.31M | 7.18M | Aug 2017 – Aug 2026 |
| Hilmer Koopmann a 274 G-2-291965 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 802K | 3.32M | Apr 2022 – Aug 2026 |
| Mann Trust Unit G-6-199176 | Zarvona Energy LLC only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 794K | 4.48M | Dec 2003 – Aug 2026 |
| Cannon G-3-271318 | Square Mile Energy, L.L.C. only | Glasscock (Wilcox 11,200) | Colorado | 1 | 755K | 16.1M | Sep 2013 – Aug 2026 |
| Hilmer Koopmann a 274 G-2-291898 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 746K | 3.56M | Mar 2021 – Aug 2026 |
| Hilmer Koopmann a 274 G-2-291956 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 712K | 3.12M | Apr 2022 – Aug 2026 |
| Hilmer Koopmann a 274 G-2-280750 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 698K | 2.6M | Jul 2016 – Feb 2021 |
| Channelview Townsite "B" G-3-171232 | Ballard Exploration Company,inc. only | Channelview (Yegua 10,000) | Harris | 1 | 692K | 29.4M | Nov 1998 – Jul 2026 |
| Koopmann (Allocation) G-2-274000 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 691K | 2.7M | Mar 2014 – Aug 2026 |
| West Channelview Townsite G-3-177910 | Ballard Exploration Company,inc. only | Channelview (Yegua 10,000) | Harris | 1 | 690K | 28.7M | May 2000 – Aug 2026 |
| Hilmer Koopmann a 274 G-2-259552 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 672K | 2.69M | Aug 2010 – Aug 2026 |
| Banner 57-1-21 G-10-279043 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 658K | 2.17M | Dec 2016 – Aug 2026 |
| Hilmer Koopmann a 274 G-2-280714 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 608K | 2.39M | Jun 2016 – Aug 2026 |
| Hilmer Koopmann a 274 G-2-280856 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 605K | 2.46M | Jun 2016 – Oct 2020 |
| Bargmann Trust Unit B G-2-266766 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 586K | 2.74M | May 2012 – Aug 2026 |
| Hilmer Koopmann a 274 G-2-280713 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 580K | 2.2M | Jun 2016 – Oct 2020 |
| N Steinmann Unit B G-2-290417 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 579K | 3.91M | Dec 2020 – Aug 2026 |
| Bargmann Trust Unit B G-2-282423 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 559K | 2.4M | May 2017 – Aug 2026 |
| Roxanne Fee 46 G-10-285251 | Capitan Energy, Incorporated only | Ford, West (Wolfcamp) | Culberson | 1 | 550K | 3.87M | Aug 2017 – Aug 2026 |
| Roxanne Fee 46 G-10-279347 | Capitan Energy, Incorporated only | Ford, West (Wolfcamp) | Culberson | 1 | 545K | 3.73M | Nov 2015 – Aug 2026 |
| M. Koopmann Unit A G-2-282947 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 468K | 2.19M | Aug 2017 – Jul 2025 |
| Bargmann Trust Unit B G-2-282461 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 467K | 2.37M | May 2017 – Jul 2026 |
| Hilmer Koopmann a 274 G-2-278316 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 467K | 2.16M | Jul 2015 – Jun 2026 |
| N. Steinmann Unit B G-2-299055 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 449K | 2.85M | Feb 2025 – Aug 2026 |
| Houston Ship Channel Unit G-3-192683 | Ballard Exploration Company,inc. only | Yellow Rose (Yegua Y-2) | Harris | 1 | 441K | 28M | Oct 2002 – Aug 2026 |
| Lehmann-Von Minden G-3-144582 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Fayette | 1 | 436K | 4.47M | Feb 1993 – Aug 2026 |
| J.C. Mann Gas Unit G-4-145065 | Dewbre Petroleum Corporation only | Cadre (Vicksburg Patriot) | Hidalgo | 1 | 420K | 24.7M | Apr 1993 – Aug 2026 |
| Bargmann Trust Unit B G-2-282867 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 419K | 2.06M | May 2017 – Sep 2024 |
| Bargmann Trust Unit B G-2-282675 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 417K | 1.8M | May 2017 – Aug 2026 |
| N Steinmann Unit A G-2-266815 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 407K | 2.29M | Nov 2012 – Aug 2026 |
| Banner 57-1-21 G-10-279225 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 404K | 4.99M | Dec 2016 – Aug 2026 |
| N Steinmann Unit B G-2-290336 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 403K | 2.8M | Dec 2020 – Aug 2026 |
| Channelview Townsite "A" G-3-168102 | Ballard Exploration Company,inc. only | Channelview (Yegua 10,000) | Harris | 1 | 397K | 13.4M | Feb 1998 – Aug 2026 |
| Houston Ship Channel Unit -A- G-3-234163 | Ballard Exploration Company,inc. only | Yellow Rose (Yegua Y-2) | Harris | 1 | 377K | 27.6M | Feb 2007 – Aug 2026 |
| Sullivan Deep "C" G-4-179054 | Paleo Oil Company LLC only | Ann Mag (Vicksburg Cons.) | Brooks | 1 | 372K | 2.09M | Jul 2000 – Sep 2025 |
| TSL 33100/TR 48/ G-4-180005 | White Marlin Operating Co, LLC only | Encinal Channel (FB-2A, M-4) | Nueces | 1 | 368K | 10.8M | Sep 2000 – Oct 2022 |
| N. Steinmann Unit B G-2-299020 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 365K | 2.45M | Feb 2025 – Aug 2026 |
| Hilmer Koopmann a 274 G-2-291964 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 364K | 1.4M | Apr 2022 – Aug 2026 |
| Hannah G-3-223018 | Hilcorp Energy Company only | Hartburg, S.E. (Yegua Cons.) | Orange | 1 | 363K | 4.22M | Oct 2006 – Jun 2018 |
| Bargmann Trust Unit B G-2-282894 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 360K | 1.58M | May 2017 – Aug 2026 |
| Hannah G-3-282399 | Hilcorp Energy Company only | Hartburg, S. (Hackberry 1ST) | Orange | 1 | 358K | 837K | Feb 2017 – Aug 2026 |
| Sullivan Deep "A" G-4-163979 | Paleo Oil Company LLC only | Ann Mag (Vicksburg Cons.) | Brooks | 1 | 344K | 4.61M | Jun 1997 – Jul 2026 |
| Balbo-Adrianna West G-10-290523 | Halcon Operating Co., Inc. only | Phantom (Wolfcamp) | Pecos | 1 | 335K | 2.6M | Jul 2017 – Jul 2026 |
| N. Steinmann Unit B G-2-298909 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 335K | 2.36M | Feb 2025 – Aug 2026 |
| Roxanne Fee 46 G-10-288671 | Capitan Energy, Incorporated only | Ford, West (Wolfcamp) | Culberson | 1 | 328K | 2.71M | May 2019 – Aug 2026 |
| Yendrey G-2-168912 | Sue-Ann Operating, L.C. only | Big 12 (Yegua AY-3) | Jackson | 1 | 325K | 6.17M | Feb 1998 – Aug 2026 |
| State Annex 57-T2-28 G-10-287067 | BPX Operating Company only | Phantom (Wolfcamp) | Reeves | 1 | 322K | 2.16M | Jul 2018 – Aug 2026 |
| State Tiemann 56-T2-28 G-10-281608 | BPX Operating Company only | Phantom (Wolfcamp) | Reeves | 1 | 311K | 1.2M | May 2016 – Aug 2026 |
| Roxanne Fee 46 G-10-288706 | Capitan Energy, Incorporated only | Ford, West (Wolfcamp) | Culberson | 1 | 311K | 2.5M | May 2019 – Aug 2026 |
| M. Koopmann Unit A G-2-266281 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 307K | 1.22M | Jul 2012 – Dec 2024 |