| Harrison, W. A. G-3-196706 | Horizon Prod. and Operating, LLC only | Smithers Lake, E. (Yegua) | Fort Bend | 1 | 926K | 13.7M | May 2003 – Aug 2024 |
| George Ranch G-3-182228 | Roy Jackson Energy Operating, LL only | Smithers Lake (Yegua EY-1) | Fort Bend | 1 | 521K | 7.71M | Nov 2000 – Apr 2025 |
| Smith Gas Unit 1 G-4-187132 | Roy Jackson Energy Operating, LL only | Kingsville, SW (Cochiti) | Kleberg | 1 | 493K | 3.78M | Oct 2001 – May 2017 |
| George Ranch G-3-182762 | Roy Jackson Energy Operating, LL only | Smithers Lake (Yegua EY-1) | Fort Bend | 1 | 467K | 10.9M | Mar 2001 – Apr 2025 |
| Smith Ike T. G-3-58096 | Zarvona Energy LLC only | Leggett (Woodbine) | Polk | 1 | 448K | 15.8M | Jan 1993 – Jul 2018 |
| Smitherator State G-10-292940 | Petro-Hunt Permian, LLC only | Ford, West (Wolfcamp) | Reeves | 1 | 441K | 5.87M | Feb 2022 – Apr 2026 |
| Smither State Unit 47-38 G-10-281635 | Petro-Hunt Permian, LLC only | Ford, West (Wolfcamp) | Reeves | 1 | 436K | 3.87M | Dec 2016 – Apr 2026 |
| George Ranch G-3-188303 | Bass Enterprises Production Co. only | Smithers Lake (Yegua EY-1) | Fort Bend | 1 | 420K | 2.96M | Apr 2002 – Aug 2004 |
| Wild-Smith G-6-229326 | Burk Royalty Co., Ltd. only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 385K | 6.77M | Jun 2007 – Apr 2026 |
| Smith Gas Unit 1 G-4-193119 | Roy Jackson Energy Operating, LL only | Kingsville, SW (Cochiti) | Kleberg | 1 | 363K | 2.09M | Jan 2003 – Dec 2023 |
| Smith, Loyd C. et al Gas Unit G-3-200482 | Range Production Company only | Cole Creek (Yegua) | Orange | 1 | 347K | 4.92M | Mar 2004 – Jun 2011 |
| Durham Smith Fuente G-10-281895 | Resolute Natural Res. Co., LLC only | Phantom (Wolfcamp) | Reeves | 1 | 347K | 1.58M | Nov 2016 – Apr 2026 |
| Smither State 1 G-10-283439 | Petro-Hunt Permian, LLC only | Ford, West (Wolfcamp) | Reeves | 1 | 336K | 2.52M | Jan 2018 – Apr 2026 |
| George Ranch G-3-192297 | Roy Jackson Energy Operating, LL only | Smithers Lake (Yegua EY-1) | Fort Bend | 1 | 323K | 6.03M | Dec 2002 – Apr 2025 |
| George Ranch G-3-189850 | Roy Jackson Energy Operating, LL only | Smithers Lake (Yegua EY-1) | Fort Bend | 1 | 302K | 11M | Jul 2002 – Apr 2025 |
| Smither State Unit 47-38 G-10-287107 | Petro-Hunt Permian, LLC only | Ford, West (Wolfcamp) | Reeves | 1 | 301K | 8.15M | Mar 2019 – Apr 2026 |
| Vana-Smith (SA) Unit 2 G-2-299635 | FW Eagle Ford I, LLC only | Eagleville (Eagle Ford-2) | Lavaca | 1 | 290K | 462K | Apr 2019 – Apr 2026 |
| Smither State Unit 47-38 G-10-283923 | Petro-Hunt Permian, LLC only | Ford, West (Wolfcamp) | Reeves | 1 | 279K | 2.81M | Apr 2018 – Apr 2026 |
| Ivas Smith 01 G-2-276917 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Live Oak | 1 | 274K | 1.11M | Nov 2014 – Apr 2026 |
| Smith, Loyd C. et al Gas Unit G-3-206237 | Range Production Company only | Cole Creek (Yegua) | Orange | 1 | 274K | 3.71M | Nov 2004 – Jul 2013 |
| Durham Smith Fuente G-10-282285 | Resolute Natural Res. Co., LLC only | Phantom (Wolfcamp) | Reeves | 1 | 271K | 1.38M | Jul 2017 – Apr 2026 |
| Royal Unit B-Smith (SA) D4 G-2-295481 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 267K | 3.66M | Jan 2023 – Apr 2026 |
| Dunagan, Baxter G-3-192285 | Smith Production Inc. only | Felicia, S. (Yegua 11160) | Liberty | 1 | 263K | 5.53M | Dec 2002 – May 2005 |
| Durham Smith Fuente G-10-282284 | Resolute Natural Res. Co., LLC only | Phantom (Wolfcamp) | Reeves | 1 | 260K | 1.32M | Jul 2017 – Apr 2026 |
| Royal Unit B-Smith (SA) D6 G-2-296198 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 254K | 2.75M | Jan 2023 – Apr 2026 |
| George Ranch G-3-187553 | Roy Jackson Energy Operating, LL only | Smithers Lake (Yegua, NM-1) | Fort Bend | 1 | 254K | 3.87M | Dec 2001 – Apr 2025 |
| George Ranch G-3-192678 | Bopco, L.P. only | Smithers Lake (Yegua EY-1) | Fort Bend | 1 | 242K | 2.26M | Jan 2003 – Jul 2009 |
| Royal B-Halepeska-Smith (SA) D1 G-2-295533 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 241K | 3.82M | Feb 2023 – Apr 2026 |
| Ivas Smith 01 G-2-277769 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Live Oak | 1 | 241K | 984K | Nov 2014 – Apr 2026 |
| Ivas Smith 01 G-2-267259 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Live Oak | 1 | 240K | 1.05M | Nov 2012 – Apr 2026 |
| Royal B-Halepeska-Smith (SA) D5 G-2-295354 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 229K | 2.56M | Feb 2023 – Apr 2026 |
| Royal Unit B-Smith (SA) D2 G-2-295318 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 228K | 3.48M | Jan 2023 – Apr 2026 |
| Royal Unit B-Smith (SA) D3 G-2-295684 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 227K | 3.23M | Jan 2023 – Apr 2026 |
| Dugger-Smith Unit G-3-149897 | Anadarko E&P Company LP only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 224K | 2.38M | May 1994 – Nov 2002 |
| Smith Family Unit a Dim G-1-273201 | Ineos USA Oil & Gas LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 215K | 968K | Feb 2014 – Apr 2026 |
| George Ranch G-3-185588 | Roy Jackson Energy Operating, LL only | Smithers Lake (Yegua, AU-1) | Fort Bend | 1 | 200K | 2.17M | Sep 2001 – Apr 2025 |
| Ivas Smith 02 G-2-294354 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Live Oak | 1 | 185K | 1.16M | Mar 2023 – Apr 2026 |
| Smith Family Unit a Dim G-1-273202 | Ineos USA Oil & Gas LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 184K | 676K | Feb 2014 – Apr 2026 |
| Ivas Smith 01 G-2-277808 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Live Oak | 1 | 180K | 643K | Nov 2014 – Apr 2026 |
| Smither State Unit 12-13 G-10-282655 | Petro-Hunt Permian, LLC only | Ford, West (Wolfcamp) | Reeves | 1 | 179K | 2.26M | Jul 2017 – Apr 2026 |
| Ivas Smith 02 G-2-294445 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Live Oak | 1 | 178K | 1.17M | Feb 2023 – Apr 2026 |
| Ivas Smith 02 G-2-294317 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Live Oak | 1 | 167K | 991K | Feb 2023 – Apr 2026 |
| Durham Smith Fuente G-10-282450 | Resolute Natural Res. Co., LLC only | Phantom (Wolfcamp) | Reeves | 1 | 166K | 1.16M | Aug 2017 – Apr 2026 |
| George Ranch AU-1 Gas Unit G-3-210201 | Bopco, L.P. only | Smithers Lake (Yegua, AU-1) | Fort Bend | 1 | 166K | 1.38M | Jun 2005 – Dec 2009 |
| Durham Smith Fuente G-10-279607 | Resolute Natural Res. Co., LLC only | Phantom (Wolfcamp) | Reeves | 1 | 166K | 1.11M | Jul 2016 – Apr 2026 |
| Briscoe Friday Smith G-1-266340 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 159K | 2.18M | Dec 2011 – Apr 2026 |
| Smither State Unit 12-13 G-10-291931 | Petro-Hunt Permian, LLC only | Ford, West (Wolfcamp) | Reeves | 1 | 146K | 4M | Sep 2021 – Apr 2026 |
| Durham Smith Fuente G-10-282283 | Resolute Natural Res. Co., LLC only | Phantom (Wolfcamp) | Reeves | 1 | 146K | 1.01M | Aug 2017 – Apr 2026 |
| Smith Gas Unit 1 G-2-261021 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | De Witt | 1 | 145K | 2.6M | Dec 2010 – Mar 2026 |
| Ivas Smith 02 G-2-294350 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Live Oak | 1 | 142K | 1.3M | Mar 2023 – Apr 2026 |