| Dougherty Estate G-2-78664 | Tepee Petroleum Co., Inc. | Plummer-Wilcox (8500) | 1 | 4.44K | 309K | by Jan 1993 – Nov 2002 |
| York G-2-199482 | Chandler Oil & Gas, LLC | Holzmark (Pettus 4150) | 1 | 4.4K | 409K | Sep 2003 – Jun 2008 |
| Brown H O-2-10305 | Enco Exploration Company | Norbee, S.E. (4230) | 1 | 4.4K | 123K | Jul 2012 – Jul 2015 |
| Page Unit-Massey et Al G-2-142639 | Enron Oil & Gas Company | Mineral, South (2700) | 1 | 4.39K | 44.5K | by Jan 1993 – Sep 1993 |
| Grissom G-2-225625 | Tidal Petroleum, Inc. | Cosden, West (Wilcox 9500) | 1 | 4.26K | 146K | Feb 2007 – Sep 2015 |
| Stewart 01 G-2-268511 | Marathon Oil EF LLC | Sugarkane (Eagle Ford) | 1 | 4.22K | 552K | May 2012 – Aug 2026 |
| Southern States G-2-265526 | Paleo Oil Company LLC | Swinney Switch, East(yegua 6100) | 1 | 4.18K | 447K | Mar 2013 – Jan 2023 |
| McFall-Kerbey O-2-8826 | AC Exploration, LLC | Rudman, West (Jackson Sand) | 1 | 4.18K | 270 | Aug 2003 – Oct 2004 |
| Holzmark G-2-155733 | Trident Corporation | Holzmark (Luling) | 1 | 4.17K | 228K | Sep 1995 – Apr 2002 |
| Beasley A O-2-8835 | Great Texas Crude Inc. | Tynan, East (Frio) | 1 | 4.15K | 0 | Oct 2003 – May 2006 |
| Thomson-Barrow Corp. G-2-161806 | C & E Operating, Inc. | Burkhollow, W. (1900) | 1 | 4.05K | 283K | Jan 1997 – Jul 2004 |
| Spiekerman, E. J. O-2-1484 | New Horizon Investments Ltd. | Sliva | 1 | 4.03K | 6.79K | by Jan 1993 – Nov 2025 |
| Slick Sand Oil Unit O-2-4558 | Mission River Systems, Inc. | Tulsita (Wilcox) | 11 | 3.99K | 202K | by Jan 1993 – Aug 2007 |
| McCarn B G-2-299765 | Warwick-Artemis, LLC | Sugarkane (Eagle Ford) | 1 | 3.99K | 1.62M | Jun 2025 – Aug 2026 |
| Borroum, Rosa E. G-2-3402 | Spindletop Oil & Gas Company | Minoak (Slick 7300) | 1 | 3.98K | 185K | by Jan 1993 – Aug 1996 |
| Smith Gill Unit O-2-11137 | Kebo Oil & Gas, Inc. | Singleton, E. (Wilson) | 1 | 3.92K | 0 | Dec 2015 – Mar 2025 |
| Dominion Fee G-2-218589 | XTO Energy Inc. | Holzmark (10800) | 1 | 3.91K | 5.52M | Jul 2005 – Dec 2012 |
| Martinson G-2-185602 | Britanco, L.L.C. | Tuleta (Yegua 4060) | 1 | 3.87K | 863K | Sep 2000 – Oct 2025 |
| Grissom G-2-218141 | Tidal Petroleum, Inc. | Cosden, West (Wilcox 9500) | 1 | 3.85K | 124K | Nov 2005 – Jul 2008 |
| Walton - Ray Wilcox Unit G-2-177208 | Wagner Oil Company | Ray-Wilcox (Mackhank) | 1 | 3.81K | 471K | Mar 2000 – Aug 2004 |
| Keller O-2-11017 | Grand Operating, Inc. | Mineral | 1 | 3.8K | 0 | Sep 2014 – Feb 2015 |
| Sinclair Hunt G-2-140098 | Wallis Energy, Inc. | Strauch-Wilcox (Slick 7900) | 1 | 3.8K | 1.14M | by Jan 1993 – Dec 2016 |
| Thomson-Barrow Corp. C G-2-165389 | C & E Operating, Inc. | Laura Thomson (4850) | 1 | 3.78K | 969K | Aug 1997 – Mar 2007 |
| Npu ( Ray -6 ) G-2-4557 | Wagner Oil Company | Tulsita-Wilcox (MWC) | 1 | 3.78K | 1.91M | by Jan 1993 – Dec 2013 |
| South Grissom G-2-245520 | Tidal Petroleum, Inc. | Caesar, South (9600) | 1 | 3.63K | 216K | Jan 2009 – Sep 2015 |
| Roth-Mutchler Unit O-2-8257 | Inland Ocean, Inc. | Tuleta, South (Hockley) | 1 | 3.63K | 0 | May 1997 – Oct 2000 |
| Tyler G-2-185908 | Welder Exploration & Prod., Inc. | Poesta Creek, N. (Hockley) | 1 | 3.61K | 319K | Mar 2001 – Nov 2009 |
| Npu (Ray 121) G-2-233422 | Paleo Oil Company LLC | Tulsita-Wilcox (MWC) | 1 | 3.59K | 2.31M | Oct 2007 – Jul 2026 |
| Beck Oil Unit O-2-9388 | Britanco, L.L.C. | Tuleta | 1 | 3.55K | 0 | Jan 2010 – Mar 2016 |
| Hill-Rose Gas Unit G-2-216255 | Petrovybe Opco LLC | Cosden, West (Wilcox 9500) | 1 | 3.5K | 142K | Oct 2005 – Jun 2020 |
| Edler, J. B. G-2-270857 | Welderxp Ltd. | Yougeen (Hockley 4500) | 1 | 3.49K | 151K | Aug 2013 – Oct 2024 |
| Withers, Bruce Unit O-2-6969 | Dirks, R. W. | Tuleta, West (Hockley) | 1 | 3.48K | 19 | by Jan 1993 – Sep 1998 |
| McCarn A2 G-2-299767 | Warwick-Artemis, LLC | Sugarkane (Eagle Ford) | 1 | 3.46K | 2.09M | Jun 2025 – Aug 2026 |
| O'Neil O-2-10812 | SV Energy Company, LLC | Murry's Magic (Yegua) | 1 | 3.41K | 0 | Jan 2014 – Mar 2015 |
| Long-Culli-McKay Unit G-2-215258 | Enco Exploration Company | SPM (Yegua 4650) | 1 | 3.41K | 183K | Sep 2005 – Sep 2008 |
| Edler, J.B. G-2-259322 | Welderxp Ltd. | Yougeen (5500) | 1 | 3.41K | 558K | Oct 2010 – Aug 2026 |
| Grissom G-2-228110 | Tidal Petroleum, Inc. | Cosden, West (Wilcox 9500) | 1 | 3.41K | 135K | May 2007 – Dec 2012 |
| Sugarek, L.D. G-2-223427 | Alegre Energy, Inc. | Sliva, Southwest (2970) | 1 | 3.35K | 18.2K | Sep 2006 – Oct 2008 |
| Neuhaus-Grissom O-2-9271 | Neuhaus, V. F. Properties, Inc. | Caesar, South (5650) | 3 | 3.32K | 0 | Jul 2008 – Aug 2010 |
| Boothe Unit G-2-257633 | Sydson Energy, Inc. | Ray (Vicksburg-Hockley) | 1 | 3.31K | 318K | Aug 2010 – May 2025 |
| Helm, R & J G-2-156822 | Ellsworth, H. P. O&G Properties | Yoward, SW. (Slick) | 1 | 3.28K | 186K | Nov 1995 – Mar 1998 |
| Malone, Rissa Mary O-2-4907 | Matrix Production Company | Malone Ranch (Hockley, Up.) | 2 | 3.27K | 64 | by Jan 1993 – Jul 1998 |
| Long G-2-181501 | Enco Exploration Company | Fred Long (2ND Slick) | 1 | 3.25K | 965K | Jul 2000 – Jun 2006 |
| Law G-2-244389 | Tidal Petroleum, Inc. | Caesar, South (9600) | 1 | 3.24K | 260K | Jul 2008 – Oct 2010 |
| Peterson G-2-240418 | Vision Oil and Gas LLC | Cosden (Z-12) | 1 | 3.23K | 134K | Jun 2008 – Oct 2021 |
| Edler, J.B. G-2-253841 | Welderxp Ltd. | Yougeen (Hockley 4500) | 1 | 3.23K | 41.3K | Aug 2009 – Aug 2026 |
| Byles, J.C. "A" G-2-163311 | Oil & Gas Acquisition Group, Inc | Caesar, South (7200) | 1 | 3.23K | 88.9K | Apr 1997 – Oct 2000 |
| Hill-Rose Gas Unit G-2-219744 | Petrovybe Opco LLC | Caesar, South (9600) | 1 | 3.22K | 293K | Jan 2006 – Aug 2026 |
| Johnston G-2-184509 | Hughes, Dan A. Company, L.P. | Fortitude (Pettus 4110) | 1 | 3.22K | 592K | Jun 2001 – Feb 2007 |
| Smith, Leonard C. O-2-7915 | JTB Oil Company, Inc. | Singleton, E. (Ingle) | 1 | 3.22K | 190 | Sep 1993 – Mar 1998 |