| Pierce Ranch N 4900 Unit O-3-24336 | McGowan Working Partners, Inc. only | Pierce Ranch (4900) | Wharton | 14 | 480K | 575K | May 2003 – Aug 2026 |
| Taylor Family Partnership G/U G-3-176608 | Finley Resources, Inc. only | Menefee (Yegua 9050) | Wharton | 1 | 252K | 5.11M | Mar 2000 – Mar 2011 |
| Duson G-3-271513 | Transpacific Energy, LLC only | Phase Four (9050 Yegua) | Wharton | 1 | 216K | 4.85M | Nov 2013 – Aug 2026 |
| Pierce Estate O-3-15059 | McGowan Working Partners, Inc. only | Pierce Ranch (4900) | Wharton | 6 | 184K | 203K | by Jan 1993 – Apr 2003 |
| Pierce Estates -E- O-3-11218 | McGowan Working Partners, Inc. only | Pierce Ranch (4900) | Wharton | 6 | 155K | 187K | by Jan 1993 – Jan 2001 |
| Rioux G-3-279380 | Hilcorp Energy Company only | Glen Flora (Yegua 9000) | Wharton | 1 | 135K | 2.14M | Mar 2015 – Sep 2018 |
| Turf Grass G-3-207047 | Petroreal Inc. only | Wharton, S. (Yegua 10900) | Wharton | 1 | 117K | 695K | Jul 2004 – Oct 2007 |
| Lange-Boatright Gas Unit G-3-158253 | Cox & Perkins Exploration, Inc. only | Phase Four (9050 Yegua) | Wharton | 1 | 115K | 4.92M | Feb 1996 – Dec 2006 |
| Wendel G-3-196878 | Viper S.W.D., LLC only | Menefee (Yegua 9050) | Wharton | 1 | 107K | 3.69M | Jun 2003 – May 2013 |
| Prasifka, R.J. O-3-11913 | Boling Production Company, Inc. only | Prasifka (5390) | Wharton | 1 | 103K | 142 | by Jan 1993 – Jul 2026 |
| Pierce Estate "J" O-3-16480 | McGowan Working Partners, Inc. only | Pierce Ranch (4900) | Wharton | 3 | 81K | 92.7K | by Jan 1993 – Apr 2003 |
| Watz G-3-279161 | Transpacific Energy, LLC only | Phase Four (9050 Yegua) | Wharton | 1 | 65K | 686K | Oct 2014 – Aug 2026 |
| Nilson G-3-176876 | Hilcorp Energy Company only | Balthrop (9000 Yegua) | Wharton | 1 | 62.2K | 1.76M | Nov 1999 – Apr 2002 |
| Clarine Gold Unit G-3-258488 | Llewellin Operating Company, LLC only | Phase Four (8900 Yegua) | Wharton | 1 | 60.3K | 1.56M | Jun 2010 – Mar 2014 |
| Nilson G-3-179146 | Hilcorp Energy Company only | Balthrop (9000 Yegua) | Wharton | 1 | 47.3K | 919K | Jul 2000 – Jul 2022 |
| Duncan, G.C. Jr. et Al O-3-23776 | Zinn Petroleum Co. only | Spanish Camp (Yegua 6900) | Wharton | 2 | 32.2K | 88.7K | Nov 1999 – Dec 2008 |
| Clapp G-3-273689 | Amexco, LLC only | Phase Four (9050 Yegua) | Wharton | 1 | 31K | 199K | Jan 2014 – Apr 2015 |
| Bartos G-3-127228 | Cox & Perkins Exploration, Inc. only | Phase Four (8900 Yegua) | Wharton | 1 | 29.8K | 728K | by Jan 1993 – Feb 1998 |
| Julius G-3-271444 | Ricochet Energy, Inc. only | Phase Four (9050 Yegua) | Wharton | 1 | 29.2K | 309K | Nov 2013 – Mar 2016 |
| Carolyn Lange G-3-283643 | MB Energy, LLC only | Phase Four (9050 Yegua) | Wharton | 1 | 25.9K | 589K | Jan 2018 – Apr 2024 |
| Ferguson Oil Unit O-3-17062 | McGowan Working Partners, Inc. only | Pierce Ranch (4900) | Wharton | 1 | 24.3K | 28.7K | by Jan 1993 – Aug 2000 |
| Julius G-3-273902 | Ricochet Energy, Inc. only | Phase Four (9050 Yegua) | Wharton | 1 | 22.3K | 168K | Feb 2014 – Nov 2015 |
| Miller-Palt Unit G-3-279196 | Ricochet Energy, Inc. only | Phase Four (9050 Yegua) | Wharton | 1 | 21.6K | 165K | Dec 2014 – Apr 2017 |
| Gold-Zapp G-3-128427 | Cox & Perkins Exploration, Inc. only | Phase Four (8900 Yegua) | Wharton | 1 | 19.7K | 644K | Aug 1995 – Mar 2000 |
| Rod Farms Unit G-3-279173 | Ricochet Energy, Inc. only | Phase Four (9050 Yegua) | Wharton | 1 | 19.5K | 135K | Nov 2014 – May 2015 |
| Balthrop Unit G-3-199687 | Dynamic Production, Inc. only | Balthrop (9000 Yegua) | Wharton | 1 | 14.1K | 728K | Feb 2004 – Jul 2007 |
| Balthrop, C. E. et al Gas Unit G-3-168248 | Horizon Exploration Company only | Balthrop (9000 Yegua) | Wharton | 1 | 12.5K | 1.26M | Feb 1998 – Mar 2000 |
| Delbur Unit G-3-280821 | | Phase Four (9050 Yegua) | Wharton | 1 | 11K | 274K | Jun 2015 – Jan 2016 |
| Wallace, R B O-3-22886 | Harrison, Sam G. Oil, Inc. only | Niels Carlsen (Frio 5390 Stray) | Wharton | 1 | 9.83K | 40.4K | Dec 1995 – Nov 2006 |
| Weise Bros. G-3-172621 | HRB Operating Company, Inc. only | Lissie, South (Yegua 6900) | Wharton | 1 | 8.67K | 925K | Mar 1999 – Jul 2025 |
| Rancho Grande Farms G-3-247662 | Ricochet Energy, Inc. only | Balthrop (9000 Yegua) | Wharton | 1 | 8.56K | 225K | Feb 2009 – Mar 2012 |
| Miller-Palt Unit G-3-281088 | Ricochet Energy, Inc. only | Phase Four (9050 Yegua) | Wharton | 1 | 8.5K | 174K | Nov 2015 – Dec 2016 |
| Lee-Mitchell "a" Gas Unit G-3-244972 | Lavaca River Operating Co., LLC only | Lissie, South (Yegua 6900) | Wharton | 1 | 6.58K | 828K | Jan 2009 – Jan 2016 |
| Boettcher O-3-27340 | Spicewood Operating Company, LLC only | Pierce Ranch (4900) | Wharton | 1 | 6.46K | 0 | Jun 2018 – Mar 2020 |
| Henry-Rod Unit G-3-281285 | Ricochet Energy, Inc. only | Phase Four (9050 Yegua) | Wharton | 1 | 6K | 95.2K | Oct 2015 – Feb 2016 |
| Townsend Unit G-3-147040 | Conoco Inc. only | Alwan, West (Yegua 6900) | Wharton | 1 | 5.37K | 442K | Oct 1993 – May 1994 |
| Wintermann "E" O-3-20094 | Forrest Energy, LLC only | Matthews, SE (Yegua 6900) | Wharton | 1 | 5.17K | 8.83K | by Jan 1993 – Mar 1995 |
| Nilson G-3-282269 | Hilcorp Energy Company only | Balthrop (9000 Yegua) | Wharton | 1 | 4.72K | 239K | Jul 2015 – Aug 2016 |
| Armour Trust, et Al G-3-282570 | Hilcorp Energy Company only | Phase Four (9050 Yegua) | Wharton | 1 | 3.92K | 14K | Mar 2017 – Aug 2017 |
| Boettcher 2 O-3-27351 | Spicewood Operating Company, LLC only | Pierce Ranch (4900) | Wharton | 1 | 3.78K | 0 | Jul 2018 – Apr 2020 |
| Victor G-3-274733 | Transpacific Energy, LLC only | Phase Four (9050 Yegua) | Wharton | 1 | 3.61K | 524K | Feb 2014 – Aug 2026 |
| Boettcher G-3-281603 | Spicewood Operating Company, LLC only | Pierce Ranch (4900) | Wharton | 1 | 3.49K | 30.7K | Jan 2017 – Aug 2017 |
| Hutchins Peareson G-3-184410 | Ramsey Production Company, LLC only | Alwan, West (Yegua 6900) | Wharton | 1 | 2.97K | 288K | Jul 2001 – Nov 2009 |
| Vickery G-3-287026 | Oblaen Resources LLC only | Lissie, South (Yegua 6900) | Wharton | 1 | 2.84K | 202K | Jun 2014 – Sep 2019 |
| Gertson G-3-186273 | Cico Oil & Gas Company only | Lissie, South (Yegua 6900) | Wharton | 1 | 2.79K | 320K | Oct 2001 – Jul 2005 |
| Boettcher Gas Unit G-3-69326 | Kaiser-Francis Oil Company only | Bonus (Yegua 6900) | Wharton | 1 | 2.72K | 724K | by Jan 1993 – Mar 2021 |
| Gold, Clarine G-3-281523 | Llewellin Operating Company, LLC only | Phase Four (8900 Yegua) | Wharton | 1 | 2.61K | 25.4K | Apr 2016 – Jun 2016 |
| Hutchins-Kelley G-3-246294 | Green Exploration Company only | Alwan, West (Yegua 6900) | Wharton | 1 | 2.55K | 142K | Dec 2008 – Jun 2010 |
| Choppe, Dorothy O-3-20917 | Magnum Producing, LP only | El Campo (6890) | Wharton | 1 | 2.4K | 11.6K | by Jan 1993 – Feb 1995 |
| Armour Trust, et Al O-3-27287 | Hilcorp Energy Company only | Phase Four (9050 Yegua) | Wharton | 1 | 2.18K | 8.12K | Sep 2017 – Nov 2017 |