| Knight Ranch G-2-226046 | Welderxp Ltd. | Cannan, South (10100 Wilcox) | 1 | 69.9K | 2.65M | Feb 2007 – Nov 2021 |
| Goree, G. W. O-2-2381 | Britanco, L.L.C. | Goree | 2 | 68.2K | 9.26K | Jan 1993 – Apr 2026 |
| Rancho Salado East Unit A G-2-279612 | Burlington Resources O & G Co LP | Sugarkane (Eagle Ford) | 1 | 67.6K | 3.67M | Dec 2015 – Apr 2026 |
| Malone Unit O-2-9221 | Trailblazer Oil & Gas LLC | Beeville, W. (Hockley) | 1 | 65.2K | 80.4K | Jun 2008 – Apr 2025 |
| Windham A G-2-298175 | Warwick-Artemis, LLC | Sugarkane (Eagle Ford) | 1 | 64.4K | 2.35M | Jul 2024 – Apr 2026 |
| Bridge Unit O-2-7983 | Ramsower Minerals Corporation | Normanna (Hockley 3525) | 1 | 63.9K | 129K | Aug 1994 – Jul 2006 |
| Olson O-2-8576 | Chandler Oil & Gas, LLC | Tuleta (Yegua 4060) | 1 | 62.5K | 74K | Sep 2000 – Nov 2016 |
| Holzmark, Emma O-2-2143 | Eldon Oil Co. | Macdon (Hockley) | 3 | 62.5K | 21 | Jan 1993 – Apr 2026 |
| Brown O-2-9699 | Headwaters Energy Partners, LLC | Fred Long (Hockley 3850) | 2 | 62.2K | 81.2K | Apr 2011 – Aug 2018 |
| Ray, George A. G-2-181073 | Paleo Oil Company LLC | Kerr (Massive) | 1 | 61.4K | 3.42M | Aug 2000 – Dec 2005 |
| Murphy, John O-2-9083 | Bridwell Oil Co. | Papalote, E. (3250) | 1 | 60.6K | 0 | Sep 2006 – Apr 2026 |
| Hollis Unit O-2-10937 | Trailblazer Oil & Gas LLC | Fred Long (Hockley 3850) | 1 | 60.1K | 88.2K | Sep 2014 – Mar 2021 |
| May A O-2-8618 | Apex Energy, Inc. | May Ranch (Hockley) | 1 | 60K | 22.6K | May 1999 – Nov 2013 |
| Malone O-2-9318 | Enco Exploration Company | Beeville, W. (Hockley) | 1 | 59.4K | 54.6K | May 2009 – Nov 2017 |
| Ray, George A. O-2-1131 | Devon Energy Production Co, L.P. | Pettus | 23 | 59.1K | 11.5K | Jan 1993 – Feb 1997 |
| Walter Wernli 01 G-2-271138 | Marathon Oil EF LLC | Sugarkane (Eagle Ford) | 1 | 59.1K | 2.08M | Aug 2013 – Jan 2026 |
| Suffel O-2-8336 | Tidal Petroleum, Inc. | Tuleta | 1 | 59.1K | 41.6K | Jan 1998 – May 2001 |
| Stauss, Ida O-2-7184 | CLR Gauging Corp. | Mudhill (Hockley) | 1 | 58.8K | 3.99K | Jan 1993 – Apr 2026 |
| Malone O-2-9250 | Trailblazer Oil & Gas LLC | Norbee (Hockley 3700) | 2 | 58.8K | 85.9K | Aug 2008 – Jun 2022 |
| Collier O-2-8947 | Enco Exploration Company | Norbee (Hockley 3700) | 1 | 58K | 98K | Feb 2005 – Jan 2014 |
| Ramirez -B- O-2-6514 | Petra Oleum Corp. | Tynan, East (Frio) | 1 | 57.8K | 8.28K | Jan 1993 – Jun 2001 |
| Suffel "B" O-2-8374 | Tidal Petroleum, Inc. | Tuleta | 1 | 57.4K | 87.5K | May 1998 – Apr 2006 |
| Helm - Arburn Unit G-2-219859 | Vision Oil and Gas LLC | Garden (Middle Wilcox) | 1 | 57.3K | 1.28M | Feb 2006 – Jul 2022 |
| Wright O-2-6822 | Britanco, L.L.C. | Mudhill (Hockley) | 2 | 57.2K | 38 | Jan 1993 – Apr 2026 |
| Windham A G-2-298174 | Warwick-Artemis, LLC | Sugarkane (Eagle Ford) | 1 | 57.1K | 1.89M | Jul 2024 – Apr 2026 |
| Robinson, D. E. O-2-6205 | Britanco, L.L.C. | Tuleta, West (2800) | 3 | 56.8K | 97K | Jan 1993 – Apr 2026 |
| Brown O-2-9361 | Trailblazer Oil & Gas LLC | Norbee S. (Yegua 4800) | 4 | 55.2K | 169K | Sep 2009 – Apr 2025 |
| Edler, J. B. O-2-1739 | Welderxp Ltd. | Yougeen | 12 | 55.2K | 691K | Jan 1993 – Apr 2026 |
| Smith O-2-8653 | Enco Exploration Company | Bolland Ranch (Hockley) | 1 | 55.2K | 27.7K | Sep 2001 – Jan 2009 |
| Windham A G-2-298178 | Warwick-Artemis, LLC | Sugarkane (Eagle Ford) | 1 | 55K | 2.27M | Jul 2024 – Apr 2026 |
| Murphy "C" O-2-7426 | Granite Crossing, LLC | Papalote, E. (3250) | 3 | 53.9K | 21 | Jan 1993 – Apr 2026 |
| Ballard, Claude G-2-225140 | Petrovybe Opco LLC | Rudman (Cannan Sd. 9720) | 1 | 53.3K | 3.58M | Dec 2006 – Apr 2026 |
| Sky City A G-2-294254 | Warwick-Artemis, LLC | Sugarkane (Eagle Ford) | 1 | 52.7K | 3.94M | Sep 2022 – Apr 2026 |
| Brown H O-2-10328 | Trailblazer Oil & Gas LLC | Norbee, S. E. (4030) | 1 | 52.6K | 171K | Jul 2012 – Mar 2025 |
| Ray, George A. G-2-183627 | Paleo Oil Company LLC | Kerr (Luling) | 1 | 52.5K | 5.39M | Apr 2001 – Apr 2026 |
| Langtry-Shirley Trust G-2-256871 | Continental Operating Co. | Mineral, West (7900) | 1 | 52.2K | 166K | Apr 2010 – Jan 2018 |
| Hynes, James Agnes O-2-3633 | Formation Resour Field Svcs, LLC | Papalote, E. (3250 -B-) | 5 | 52.1K | 21 | Jan 1993 – Nov 2016 |
| Hynes, James Agnes O-2-5327 | Formation Resour Field Svcs, LLC | Papalote, E. (3200 Stringer) | 2 | 50.6K | 19.9K | Jan 1993 – Dec 2009 |
| Murphy, Willie O-2-3749 | Bridwell Oil Co. | Papalote, E. (3200 Stringer) | 2 | 50.4K | 21 | Jan 1993 – Apr 2026 |
| Thomson-Barrow Corp. O-2-8299 | C & E Operating, Inc. | Laura Thomson, SW (5100) | 1 | 49.8K | 63.1K | Sep 1997 – Nov 2009 |
| Malone O-2-9255 | Enco Exploration Company | Beeville, North (Hockley) | 1 | 49.5K | 61.9K | Sep 2008 – Jul 2017 |
| Mansker "A" G-2-192167 | Hughes, Dan A. Company, L.P. | Causey (11,100) | 1 | 48.9K | 3.19M | Aug 2002 – Apr 2010 |
| Gill 01 G-2-268941 | Marathon Oil EF LLC | Sugarkane (Eagle Ford) | 1 | 48.6K | 1.66M | Feb 2012 – Apr 2026 |
| Wolters, R. E. G-2-64534 | Rock Resources, Inc. | Minoak (Slick 7300) | 1 | 48.6K | 2.62M | Jan 1993 – Apr 2026 |
| Malone O-2-9341 | Trailblazer Oil & Gas LLC | Fred Long (Hockley 3850) | 3 | 46.4K | 72.5K | Aug 2009 – May 2017 |
| Brice Unit O-2-6025 | Eldon Oil Co. | Holzmark | 1 | 46.1K | 21 | Jan 1993 – Apr 2026 |
| Heard, C. E. "B" O-2-9220 | Lakeshore Operating, LLC | Heard Ranch (4300) | 1 | 45.9K | 416K | May 2008 – Nov 2022 |
| Krause O-2-9373 | Welder Exploration & Prod., Inc. | Yougeen (Hockley 4500) | 1 | 45.4K | 154K | Aug 2009 – Jan 2014 |
| Strader Unit G-2-228741 | Petrovybe Opco LLC | Rudman (Cannan Sd. 9720) | 1 | 45.2K | 2.89M | Jun 2007 – Apr 2026 |
| Sugarek, L.D. O-2-5948 | Carburante Exploration Co, Ltd. | Sliva, Southwest (2970) | 1 | 44.7K | 3.04K | Jan 1993 – Feb 2024 |