| Bargmann Trust Unit B G-2-266766 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 586K | 2.74M | May 2012 – Aug 2026 |
| Bargmann Trust Unit B G-2-282423 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 559K | 2.4M | May 2017 – Aug 2026 |
| Bargmann Trust Unit B G-2-282461 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 467K | 2.37M | May 2017 – Jul 2026 |
| Bargmann Trust Unit B G-2-282867 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 419K | 2.06M | May 2017 – Sep 2024 |
| Bargmann Trust Unit B G-2-282675 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 417K | 1.8M | May 2017 – Aug 2026 |
| Bargmann Trust Unit B G-2-282894 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 360K | 1.58M | May 2017 – Aug 2026 |
| Hamilton Trust A-405 G-2-277905 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 341K | 1.4M | May 2015 – Aug 2026 |
| Hamilton Trust Unit C G-2-272310 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 307K | 1.75M | Jan 2014 – Aug 2026 |
| Hamilton Trust A-405 G-2-270246 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 295K | 1.11M | Jul 2013 – May 2026 |
| Hamilton Trust A-405 G-2-259352 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 294K | 1.08M | Aug 2010 – Jan 2016 |
| Hamilton Trust A-405 G-2-277912 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 278K | 1.19M | May 2015 – Jun 2026 |
| Hamilton Trust a 405 G-2-276972 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 276K | 1.13M | Nov 2014 – Aug 2026 |
| Hamilton Trust A-405 G-2-277480 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 271K | 1.18M | May 2015 – Aug 2026 |
| Bargmann Trust Unit B G-2-282438 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 269K | 1.25M | May 2017 – Aug 2026 |
| Hamilton Trust A-405 G-2-277910 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 268K | 1.14M | May 2015 – Jun 2026 |
| Hamilton Trust A-405 G-2-277479 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 250K | 1.08M | May 2015 – Jun 2026 |
| Hamilton Trust Unit C G-2-270903 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 238K | 1.46M | Jan 2014 – Aug 2026 |
| Hamilton Trust Unit C G-2-261182 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 190K | 1.18M | May 2011 – Aug 2026 |
| Hamilton Trust Unit B G-2-260706 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 189K | 1.01M | Oct 2010 – Aug 2026 |
| Hamilton Trust Unit C G-2-270930 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 174K | 1.03M | Jan 2014 – Apr 2026 |
| Hamilton Trust Unit D G-2-276976 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 167K | 1.25M | Nov 2014 – Aug 2026 |
| Hamilton Trust Unit D G-2-263687 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 145K | 1.01M | Apr 2011 – Jul 2026 |
| Hamilton Trust Unit D G-2-276923 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 135K | 1.06M | Nov 2014 – Aug 2026 |
| Hamilton Trust Unit D G-2-270249 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 103K | 630K | Jul 2013 – Jul 2026 |
| Blackwell Trust Gas Unit G-2-217905 | Mosley Oil &gas Inc only | Friar Ranch, S. (Consolidated) | De Witt | 1 | 98.6K | 2.58M | Nov 2005 – Mar 2019 |
| Blackwell Trust Gas Unit G-2-231207 | Mosley Oil &gas Inc only | Friar Ranch, S. (Consolidated) | De Witt | 1 | 43.6K | 5.94M | Sep 2007 – Apr 2021 |
| Blackwell Trust Gas Unit G-2-212281 | Mosley Oil &gas Inc only | Friar Ranch, S. (Consolidated) | De Witt | 1 | 36.6K | 591K | Jul 2005 – Apr 2022 |
| Blackwell Trust Gas Unit G-2-223762 | Mosley Oil &gas Inc only | Friar Ranch, S. (Consolidated) | De Witt | 1 | 27K | 5.26M | Nov 2006 – Apr 2022 |
| Duderstadt Trust 01 G-2-266387 | Marathon Oil EF LLC only | De Witt (Eagle Ford Shale) | De Witt | 1 | 19.7K | 1.07M | Sep 2011 – Aug 2026 |
| Zengerle, Ester et Al O-2-5099 | Long Trusts, The only | Anna Barre (Yegua 4900) | De Witt | 2 | 17.1K | 74 | by Jan 1993 – Dec 2008 |
| Sievers, Edwald et Al O-2-5133 | Long Trusts, The only | Holly (Yegua 4600 Up.) | De Witt | 1 | 12.3K | 68 | by Jan 1993 – Sep 2005 |
| Thamm Trust O-2-10890 | Cimarron Engineering, LLC only | Arneckeville (Yegua 4910) | De Witt | 1 | 4.86K | 0 | Apr 2014 – Mar 2019 |
| Red Crest Trust G-2-165140 | First Rock, Inc. only | Roehl (Edwards) | De Witt | 1 | 4.35K | 751K | Aug 1997 – Dec 2006 |
| Blackwell Trust Gas Unit G-2-226817 | Mosley Oil &gas Inc only | Friar Ranch, S. (Consolidated) | De Witt | 1 | 1.47K | 287K | Mar 2007 – Apr 2022 |
| Reiffert Bros. Trust -D- G-2-141364 | Maguire Oil Company only | Reiffert (Wilccox 12,900) | De Witt | 1 | 205 | 2.69K | Feb 1993 – Jun 1995 |
| Reiffert Bros. Trust -D- G-2-73559 | B D Production Co., Inc. only | Reiffert (Yegua 5160) | De Witt | 1 | 91 | 83.9K | by Jan 1993 – Jan 2000 |
| Linder Trust G-2-176768 | Crimson Exploration Oper., Inc. only | Brushy Creek, S. (Wilcox 13900) | De Witt | 1 | 35 | 76.2K | Feb 2000 – Apr 2009 |
| Felix Simek Family Trust A73 G-2-227968 | Hunt Oil Company only | Kasper, S. (Knave) | De Witt | 1 | 6 | 82.9K | Oct 2006 – Jun 2008 |
| Lackey Trust G-2-174965 | Austin Resources Corporation only | Cottonwood Creek, S. (Frio 2875) | De Witt | 1 | 0 | 104K | Aug 1999 – Dec 2000 |
| Lackey Trust G-2-174967 | Austin Resources Corporation only | Cottonwood Creek, S.(frio 2920) | De Witt | 1 | 0 | 52.4K | Jul 1999 – Jul 2000 |
| Lackey Trust, et Al G-2-148217 | Petro-Hunt Corporation only | Arneckeville, E. (Frio 2500) | De Witt | 1 | 0 | 126K | Dec 1993 – Apr 1995 |
| Hamilton Trust A-405 G-2-276682 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 0 | 0 | — |
| Lackey Trust, et Al G-2-142450 | Petro-Hunt Corporation only | Cottonwood Creek, S. (Frio 2875) | De Witt | 1 | 0 | 22.3K | by Jan 1993 – Nov 1993 |
| Reiffert Bros. Trust -D- G-2-73467 | B D Production Co., Inc. only | Reiffert (Yegua 5160) | De Witt | 1 | 0 | 0 | — |
| Bargmann Trust Unit B G-2-282453 | Burlington Resources O & G Co LP only | Sugarkane (Austin Chalk) | De Witt | 1 | 0 | 0 | — |
| Bargmann Trust Unit B G-2-282912 | Burlington Resources O & G Co LP only | Sugarkane (Austin Chalk) | De Witt | 1 | 0 | 0 | — |