| Oppenheimer 188 O-10-46967 | Crescent Energy Operating, LLC only | Wolfbone (Trend Area) | Reeves | 6 | 1.25M | 2.43M | Sep 2015 – Jul 2026 |
| Heimple -B- O-3-2281 | Quail Creek Oil Corporation only | Hull | Liberty | 6 | 654K | 443K | by Jan 1993 – Aug 2026 |
| Halff & Oppenheimer O-1-1364 | Bigfoot Oil LLC only | Pearsall (Navarro Sand) | Frio | 19 | 480K | 38.3K | by Jan 1993 – Sep 2025 |
| Heimple -A- O-3-2280 | Quail Creek Oil Corporation only | Hull | Liberty | 4 | 241K | 70.1K | by Jan 1993 – Aug 2026 |
| Furhken, Lola G-2-185071 | Magnum Producing, LP only | Nordheim, SW. (11,400) | De Witt | 1 | 152K | 4.2M | Mar 2001 – Jan 2009 |
| Veitenheimer, A. -B- O-13-19988 | Peterson Oil and Gas LLC only | Arrowhead (Caddo) | Clay | 7 | 137K | 3.34K | by Jan 1993 – Aug 2025 |
| Oppenheimer O-1-12716 | Bigfoot Oil LLC only | Pearsall (Austin Chalk) | Frio | 1 | 102K | 504K | by Jan 1993 – Feb 2017 |
| Lola Fuhrken Gas Unit G-2-162204 | Magnum Producing, LP only | Nordheim, SW. (11,400) | De Witt | 1 | 98.7K | 10.4M | Dec 1996 – Aug 2010 |
| Oppenheimer Unit O-1-16758 | Blackbrush O & G, LLC only | Pearsall (Buda, S.) | Frio | 2 | 91.5K | 212K | Sep 2012 – Jul 2017 |
| John Oppenheimer Unit O-1-17686 | Blackbrush O & G, LLC only | Pearsall (Buda, S.) | Frio | 1 | 74.5K | 279K | Apr 2013 – Dec 2017 |
| Dym-Vietenheimer O-13-32530 | Covenant Operating, LLC only | Tally (Strawn) | Clay | 1 | 52.6K | 0 | Mar 2013 – Aug 2026 |
| Whitfield G-2-191449 | Wynn-Crosby Operating, Ltd. only | Nordheim, SW. (11,600) | De Witt | 1 | 51.5K | 4.27M | May 2002 – Aug 2009 |
| Oppenheimer A O-1-16210 | Blackbrush O & G, LLC only | Pearsall (Buda, S.) | Frio | 2 | 51K | 630K | May 2011 – Aug 2026 |
| Swickheimer Estate O-2-7866 | American Int'l Energy Corp. only | Alkek (3490) | Goliad | 1 | 50.5K | 88.2K | Mar 1993 – Dec 1998 |
| Oppenheimer, Jessie D. O-1-96 | Watson Energy Investments, LLC only | Big Foot | Frio | 9 | 50.4K | 71.4K | by Jan 1993 – Apr 2022 |
| Weinheimer, E. A. G-3-145881 | Houston Hydrocarbons, Inc. (A) only | Alwan (Yegua 7570) | Wharton | 1 | 42.2K | 915K | Mar 1993 – Oct 1998 |
| Veitenheimer -B- O-13-10753 | Macha Enterprises, Inc. only | Clay County Regular | Clay | 7 | 41.2K | 24 | by Jan 1993 – Apr 2023 |
| Oppenheimer AB Unit O-1-18154 | Blackbrush O & G, LLC only | Pearsall (Buda, S.) | Frio | 1 | 36.4K | 380K | Sep 2014 – Aug 2026 |
| Waskow, Henry G-2-89213 | Cowrie Energy LLC only | Nordheim (Wilcox 9900) | De Witt | 1 | 34.5K | 1.58M | by Jan 1993 – Jan 2022 |
| Schlosser Unit G-2-61382 | Eland Energy, Inc. only | Nordheim (Wilcox 10600) | De Witt | 1 | 32.5K | 2.2M | by Jan 1993 – Mar 2013 |
| Oehlke G-2-64644 | Eland Energy, Inc. only | Nordheim (Wilcox 10600) | De Witt | 1 | 32.4K | 1.68M | by Jan 1993 – Nov 2002 |
| Heimple -B- O-3-9200 | Quail Creek Oil Corporation only | Hull (Cook Mountain) | Liberty | 1 | 31.9K | 11.2K | by Jan 1993 – Jul 2006 |
| Seilheimer G-3-287862 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk, Gas) | Washington | 1 | 29.5K | 12.7M | Mar 2019 – Jul 2026 |
| Halff & Oppenheimer -C- O-1-4586 | Maverick Energy Group, Inc. only | Pearsall (Austin Chalk) | Frio | 5 | 27.1K | 236K | Oct 1993 – Sep 2015 |
| Weinheimer G-3-259092 | TMR Exploration, Inc. only | Alwan (Cook Mountain) | Wharton | 1 | 26.2K | 769K | Jul 2010 – Apr 2020 |
| E.A. Weinheimer-Grady Trust Unit G-3-139930 | Crimson Exploration Inc. only | Alwan (Cook Mountain) | Wharton | 1 | 24.1K | 534K | Jun 1993 – Mar 2005 |
| Oppenheimer-Calvert Unit O-1-14398 | Blackbrush O & G, LLC only | Pearsall (Buda, S.) | Frio | 1 | 21.7K | 354K | Jan 2002 – Feb 2017 |
| Heiman-Lehrer G-3-188246 | Texas Operating Partners LLC only | Englehart (Wilcox 8950) | Colorado | 1 | 19.3K | 903K | Jan 2002 – Oct 2025 |
| Hargesheimer, E. O-13-16823 | Peterson Oil and Gas LLC only | Mackoy (4400 Sand) | Grayson | 1 | 16K | 32 | by Jan 1993 – Nov 2025 |
| Nordheim Unit G-2-209724 | Lime Rock Resources a, L.P. only | Nordheim (Wilcox 9900) | De Witt | 1 | 15.8K | 1.08M | Oct 2004 – Sep 2008 |
| Swickheimer, G. G. Estate G-2-186780 | Transpacific Energy, LLC only | Austin (Nita) | Goliad | 1 | 15.8K | 1.52M | Sep 2001 – Aug 2026 |
| Bodenheim, G. A. G-6-154967 | Craton Operating LLC only | Willow Springs (Cotton Valley) | Gregg | 1 | 15K | 3.03M | May 1995 – Aug 2026 |
| Veitenheimer, P. O-13-21373 | Peterson Oil and Gas LLC only | Arrowhead (Caddo) | Clay | 1 | 14.6K | 2.71K | by Jan 1993 – Aug 2025 |
| Remmers (Deep) G-2-196959 | West Texas Syndicate LLC. only | Nordheim, SW. (12,600) | De Witt | 1 | 13.1K | 3.55M | May 2003 – May 2023 |
| Lola Fuhrken Gas Unit G-2-147318 | Magnum Producing, LP only | Nordheim, SW. (12,000) | De Witt | 1 | 12.2K | 3.02M | Sep 1993 – Dec 1996 |
| Bodenheim, G.A. G-6-131441 | Craton Operating LLC only | Willow Springs (Travis Peak) | Gregg | 1 | 12.2K | 2.02M | by Jan 1993 – Sep 2024 |
| Nordeim Unit G-2-215732 | Sue-Ann Operating, L.C. only | Nordheim (Wilcox, Lower) | De Witt | 1 | 12.1K | 820K | Jan 2006 – Jun 2015 |
| Nordheim Unit G-2-207993 | Sue-Ann Operating, L.C. only | Nordheim (Wilcox 9900) | De Witt | 1 | 11.3K | 1.7M | Jan 2005 – Mar 2014 |
| Weinheimer G-3-115249 | Sue-Ann Operating, L.C. only | El Maton, South (Frio 9440) | Matagorda | 1 | 10.7K | 901K | by Jan 1993 – Jan 2004 |
| Remmers G-2-141728 | IV Standard, LLC only | Nordheim, SW. (12,000) | De Witt | 1 | 10.3K | 3.24M | by Jan 1993 – Aug 2026 |
| Bodenheim, G. A. G-6-154769 | Craton Operating LLC only | Willow Springs (Cotton Valley) | Gregg | 1 | 9.76K | 1.3M | Oct 1994 – May 2009 |
| Whitfield G-2-190679 | Santos USA Corp. only | Nordheim, SW. (11,400) | De Witt | 1 | 9.28K | 376K | Jul 2001 – Sep 2005 |
| Heim G-3-141370 | Zinn Petroleum Co. only | Chenango (9500) | Brazoria | 1 | 8.96K | 588K | by Jan 1993 – Mar 1998 |
| Elmore O-13-22018 | Veitenheimer Oil Co. only | Archer City, SW. (5100 Sd.) | Archer | 1 | 8.47K | 21 | by Jan 1993 – Aug 2026 |
| Whitfield G-2-252967 | West Texas Syndicate LLC. only | Nordheim, SW. (11,400) | De Witt | 1 | 7.63K | 690K | Aug 2009 – Jan 2021 |
| Bodenheim, G. A. G-6-154770 | Craton Operating LLC only | Willow Springs (Travis Peak) | Gregg | 1 | 7.39K | 567K | Nov 1994 – Nov 1998 |
| Bodenheim, G.A. G-6-152921 | Craton Operating LLC only | Willow Springs (Travis Peak) | Gregg | 1 | 7.24K | 405K | Nov 1994 – Apr 2012 |
| Veitenheimer O-13-27193 | Big Rock Oil LLC only | Arrowhead (Caddo) | Clay | 1 | 7.23K | 142 | by Jan 1993 – Sep 2014 |
| Oehlke G-2-64645 | Eland Energy, Inc. only | Nordheim (Wilcox, Lower) | De Witt | 1 | 7.2K | 229K | Feb 2001 – Jun 2003 |
| Hergesheimer Gas Unit G-6-221993 | Sabine Energy Inc. only | Minden (Cotton Valley Cons.) | Rusk | 1 | 7.17K | 671K | Apr 2006 – Oct 2025 |