| Edler, J.B. O-2-9253 | Welderxp Ltd. | Yougeen (Hockley 4500) | 3 | 44.3K | 482K | Jul 2008 – Oct 2024 |
| Smith O-2-8786 | Enco Exploration Company | Beeville, SW. (Hockley) | 2 | 44K | 56.6K | Apr 2003 – Dec 2009 |
| Bumble Bee B G-2-296774 | Warwick-Artemis, LLC | Sugarkane (Eagle Ford) | 1 | 43.9K | 2.8M | Mar 2024 – Apr 2026 |
| Bumble Bee B G-2-296844 | Warwick-Artemis, LLC | Sugarkane (Eagle Ford) | 1 | 43.8K | 2.57M | Mar 2024 – Apr 2026 |
| Sky City A G-2-294158 | Warwick-Artemis, LLC | Sugarkane (Eagle Ford) | 1 | 43.7K | 3.55M | Sep 2022 – Apr 2026 |
| Perez, Porfirio -B- O-2-1552 | Staples, James W. Prod. Co. | Tuleta | 2 | 42.9K | 781 | by Jan 1993 – Mar 2026 |
| Kircher O-2-10866 | Kingfish Gathering LLC | Tynan, East (Frio 3420) | 1 | 42.5K | 0 | May 2014 – Apr 2026 |
| Linney, C. M. et Al O-2-6879 | Outline Oil Company LLC | Papalote, E. (3250) | 2 | 42.5K | 111 | by Jan 1993 – Oct 2016 |
| Borroum O-2-9467 | Sun Exploration, Inc. | Caesar, South (Slick) | 1 | 42.4K | 5.45K | Jun 2010 – Apr 2023 |
| Thomson-Barrow O-2-8790 | Dewbre Petroleum Corporation | Massingill, W. (Chamberlain) | 1 | 42K | 0 | May 2003 – Aug 2013 |
| Moore, Lon S. O-2-8507 | Staples, James W. Prod. Co. | San Domingo (Vicksburg) | 1 | 41.5K | 2.2K | Feb 2000 – Aug 2024 |
| Erp, Will Estate O-2-9454 | Ramtex Energy LLC | Slick (Lower Slick) | 1 | 41.1K | 8.05K | Mar 2010 – Sep 2016 |
| W.C. Murphy O-2-11174 | Paloma Operating, LLC | Papalote, E. (3250) | 1 | 41K | 0 | Sep 2015 – Apr 2026 |
| Wtu Hall G-2-43324 | West Tuleta Operating Corp. | Tuleta, West (9570) | 1 | 40.6K | 2.21M | by Jan 1993 – Mar 2013 |
| Schrade-Dahl G.U. G-2-195635 | Petrovybe Opco LLC | Caesar, South (Wilcox 9770) | 1 | 40.4K | 3.72M | Mar 2003 – Apr 2026 |
| Odem O-2-7273 | CLR Gauging Corp. | Mudhill (Hockley) | 1 | 40.3K | 3.98K | by Jan 1993 – Apr 2026 |
| Collier O-2-9063 | Trailblazer Oil & Gas LLC | Norbee (3400) | 1 | 39.7K | 31.1K | Sep 2005 – Jan 2025 |
| Brown Gas Unit G-2-146734 | Wagner Oil Company | Norbee (Slick) | 1 | 39.7K | 580K | Aug 1993 – May 2016 |
| Edler, J. B. O-2-7085 | Welderxp Ltd. | Yougeen (Yegua 5400) | 2 | 39.3K | 1.39M | by Jan 1993 – Apr 2026 |
| Bumble Bee A G-2-294426 | Warwick-Artemis, LLC | Sugarkane (Eagle Ford) | 1 | 38.9K | 3M | Dec 2022 – Apr 2026 |
| Thomas, F. V. O-2-1808 | Bridwell Oil Co. | Blanconia, South | 2 | 38.8K | 802 | by Jan 1993 – Apr 2026 |
| Shinn, George O-2-8591 | Cummins & Walker Oil Co., Inc. | Tuleta | 1 | 38.4K | 3.49K | Feb 2001 – Aug 2004 |
| Turnbow G-2-229400 | Petrovybe Opco LLC | Rudman (Cannan Sd. 9720) | 1 | 37.7K | 1.42M | Jul 2007 – Apr 2026 |
| Adams O-2-7355 | Estate of James L. Nelson | Theis | 1 | 37.5K | 26 | by Jan 1993 – Mar 2026 |
| Murphy, John O-2-7498 | Granite Crossing, LLC | Papalote, E. (3200 Stringer) | 2 | 37.4K | 21 | by Jan 1993 – Apr 2026 |
| Riley G-2-212128 | Hughes, Dan A. Company, L.P. | Cannan, E. (10150 Wilcox) | 1 | 37.3K | 1.71M | Apr 2005 – Dec 2015 |
| Smit, Wm. S. O-2-7212 | Marquee Corporation | Smith Ranch (Hockley, Up.) | 1 | 36.9K | 19.8K | by Jan 1993 – Jul 2003 |
| Culli O-2-9190 | Welderxp Ltd. | Singleton, E. (Hockley) | 1 | 36.5K | 0 | Feb 2008 – Nov 2016 |
| Wtu-Gill G-2-201809 | West Tuleta Operating Corp. | Tuleta, West (Wilcox 8750) | 1 | 36.5K | 1.36M | Dec 2003 – Sep 2009 |
| McFall-Kerby O-2-6738 | Halex Oil Corporation | Rudman, West (Jackson Sand) | 2 | 36.4K | 17.3K | by Jan 1993 – Mar 2005 |
| Martin Unit G-2-220079 | Magnum Producing, LP | Theis, South(slick First) | 1 | 35.6K | 1.2M | Mar 2006 – Dec 2015 |
| Younts G-2-181300 | Trinity River Energy Oper, LLC | Rollem (1ST Reagan) | 1 | 35.6K | 3.09M | Dec 2000 – Aug 2014 |
| Helm-Arburn Unit G-2-257877 | Vision Oil and Gas LLC | Garden (Middle Wilcox) | 1 | 35.5K | 639K | Aug 2010 – Jul 2022 |
| J. C. Byles et al Oil Unit O-2-8577 | Rincon Petroleum Corporation | Caesar, South (Luling) | 1 | 35.4K | 1.82K | Nov 2000 – Mar 2026 |
| Goree, Audrey C. G-2-84251 | Britanco, L.L.C. | Yoward (9200) | 1 | 34.6K | 976K | by Jan 1993 – Apr 2026 |
| Ballard, Lela Mrs. O-2-1889 | Nog Production & Operating LLC | Rudman (Slick 6700) | 1 | 34.5K | 22 | by Jan 1993 – Nov 2022 |
| Dougherty Properties -C- G-2-106806 | Hughes, Dan A. Company, L.P. | Dougherty Ranch (10350) | 1 | 34.4K | 1.78M | by Jan 1993 – Feb 2019 |
| Mansker-Shell Unit G-2-183339 | Hughes, Dan A. Company | Causey (7870) | 1 | 34.3K | 1.46M | Jan 2001 – May 2005 |
| Mansker "A" G-2-184812 | Petrovybe Opco LLC | Causey (11,100) | 1 | 33.9K | 1.88M | May 2001 – Mar 2026 |
| Byles, J. C. et Al G-2-156130 | Oil & Gas Acquisition Group, Inc | Caesar, South (Massive) | 1 | 33.5K | 827K | Sep 1995 – Nov 2000 |
| Hughes O-2-11018 | Paloma Operating, LLC | Theis | 3 | 33.4K | 602 | Jul 2015 – Apr 2026 |
| Curry, V.I. O-2-5838 | Origin Production Group LLC | Holzmark | 8 | 33.4K | 21 | by Jan 1993 – Jun 2020 |
| Southern States O-2-10806 | Paleo Oil Company LLC | Swinney Switch (Hockley, Upper) | 1 | 33.3K | 38.5K | Jan 2014 – Mar 2026 |
| Boswell 02 G-2-269573 | Marathon Oil EF LLC | Sugarkane (Eagle Ford) | 1 | 33.2K | 1.38M | May 2013 – Mar 2026 |
| Gremmel, E. O-2-1130 | RR Ventures Limited Partnership | Pettus | 1 | 33.1K | 185 | by Jan 1993 – Apr 2010 |
| Shaw, John B. O-2-6756 | Vaquero Operating | San Domingo, S.(3200) | 2 | 33.1K | 8.08K | by Jan 1993 – Mar 2022 |
| Murphy, John #2-A O-2-7738 | Granite Crossing, LLC | Papalote, E. (3250 -B-) | 1 | 33K | 75 | by Jan 1993 – Feb 2026 |
| Long O-2-8849 | Headwaters Energy Partners, LLC | Fred Long (Hockley 3850) | 2 | 32.7K | 36.5K | Feb 2004 – Feb 2011 |
| Trial Unit O-2-9455 | Enco Exploration Company | Fred Long (Hockley 3850) | 1 | 32.3K | 26.5K | Aug 2010 – Dec 2014 |
| Little John O-2-9133 | Trailblazer Oil & Gas LLC | Norbee (Hockley 3700) | 2 | 32.3K | 2.19K | Apr 2007 – Apr 2025 |