| Flowers Trust "A" G-14-272832 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 76.7K | 1.29M | Jul 2013 – Aug 2026 |
| Payne Trust G-14-246663 | BE Anadarko II, LLC only | RFC (Morrow, Upper) | Roberts | 1 | 60.7K | 2.81M | Dec 2006 – Dec 2025 |
| Flowers Trust "B" G-14-258647 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 52.6K | 4.41M | Jun 2010 – Aug 2026 |
| Flowers Trust "A" O-14-7210 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 49.1K | 1.29M | Jul 1997 – Aug 2026 |
| Flowers Trust O-14-4713 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 3 | 43.6K | 1.55M | by Jan 1993 – Oct 2017 |
| Flowers Trust "B" O-14-7209 | BP America Production Company only | Mendota, NW. (Granite Wash) | Roberts | 2 | 42K | 797K | Jun 1997 – May 2002 |
| Flowers Trust G-14-258731 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 41.5K | 1.42M | Jul 2010 – Jul 2025 |
| Martin Trust G-14-278052 | Presidio Petroleum LLC only | Clark Martin (Granite Wash) | Roberts | 1 | 41.5K | 2.54M | Jan 2015 – Aug 2026 |
| Martin Trust C G-14-272341 | Presidio Petroleum LLC only | St. Clair (Granite Wash) | Roberts | 1 | 38.2K | 142K | May 2013 – Mar 2022 |
| Flowers Trust "A" G-14-159628 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 38.2K | 1.37M | Jul 1996 – Aug 2026 |
| Martin Trust G-14-265532 | BE Anadarko II, LLC only | Roberts Co. (St. Louis) | Roberts | 1 | 36.4K | 3.09M | Sep 2011 – Aug 2026 |
| Flowers Trust 'B' G-14-268115 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 30.5K | 2.67M | Oct 2012 – Aug 2026 |
| Flowers Trust "B" G-14-255332 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 30.4K | 3.21M | Jan 2010 – Aug 2026 |
| Flowers Trust "A" G-14-92572 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 29.8K | 777K | by Jan 1993 – Oct 2023 |
| Flowers Trust "A" G-14-250135 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 28.1K | 830K | May 2009 – Aug 2026 |
| Flowers Trust "B" G-14-247757 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 27.9K | 1.55M | Jan 2009 – Aug 2026 |
| Flowers Trust G-14-149917 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 26.9K | 780K | Mar 1994 – Aug 2026 |
| Flowers Trust G-14-267522 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 26.7K | 1.11M | May 2012 – Aug 2026 |
| Flowers Trust "A" G-14-258245 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 26.5K | 666K | Apr 2010 – Aug 2026 |
| Vollmert Trust G-14-266386 | Bracken Operating, L.L.C. only | Mendota, NW. (Granite Wash) | Roberts | 1 | 26.5K | 2.17M | Mar 2012 – Aug 2026 |
| Flowers Trust "A" G-14-254685 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 25.9K | 556K | Jan 2010 – Aug 2026 |
| Flowers Trust 'A' G-14-276176 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 25.6K | 453K | Jul 2014 – Aug 2026 |
| Flowers Trust "A" G-14-158591 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 25.2K | 746K | May 1996 – Aug 2026 |
| Martin Trust B G-14-129707 | Presidio Petroleum LLC only | Clark Martin (Granite Wash) | Roberts | 1 | 23.8K | 361K | by Jan 1993 – Nov 2021 |
| Flowers Trust "B" G-14-250154 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 23.8K | 1.18M | Mar 2009 – Aug 2026 |
| Flowers Trust "A" O-14-6329 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash, SW.) | Roberts | 1 | 22.1K | 1.19M | by Jan 1993 – Aug 2026 |
| Flowers Trust "A" G-14-254317 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 21.7K | 609K | Nov 2009 – Aug 2026 |
| Flowers Trust G-14-228145 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 20.3K | 1.35M | Mar 2007 – Aug 2026 |
| Flowers Trust "A" G-14-170707 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 18.8K | 1.26M | Jul 1998 – Aug 2026 |
| Martin Trust G-14-236009 | Presidio Petroleum LLC only | Clark Martin (Granite Wash) | Roberts | 1 | 16.5K | 953K | Nov 2007 – May 2023 |
| Martin Trust O-14-7690 | Presidio Petroleum LLC only | Clark Martin (Granite Wash) | Roberts | 1 | 16K | 35.6K | Oct 2006 – Oct 2020 |
| Martin Trust B3072 G-14-144160 | United Oil & Shale LLC only | Clark Martin (Granite Wash) | Roberts | 1 | 15.5K | 344K | by Jan 1993 – Jul 2011 |
| Flowers Trust "A" G-14-253239 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 15.4K | 779K | Aug 2009 – Aug 2026 |
| Flowers Trust G-14-247756 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 15.3K | 860K | Jan 2009 – Aug 2026 |
| Flowers Trust G-14-191543 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 15.1K | 826K | Sep 2002 – Aug 2026 |
| Flowers Trust "B" G-14-227885 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 15.1K | 695K | Mar 2007 – Aug 2026 |
| Flowers Trust G-14-164724 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 14.6K | 797K | Jul 1997 – Apr 2024 |
| Flowers Trust G-14-36236 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 13.4K | 840K | by Jan 1993 – Apr 2016 |
| Flowers Trust G-14-247017 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 13.3K | 857K | Sep 2008 – Aug 2026 |
| Flowers Trust G-14-223677 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 12.4K | 784K | Oct 2006 – Aug 2026 |
| Flowers Trust "A" G-14-166494 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 12.1K | 937K | Sep 1997 – Sep 2024 |
| Flowers Trust "B" G-14-253016 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 11.6K | 827K | Jun 2009 – Aug 2026 |
| Flowers Trust "A" O-14-6875 | Blackbeard Operating, LLC only | Mendota, NW. (Douglas, Lo.) | Roberts | 3 | 11.6K | 326K | Aug 1993 – Jul 2020 |
| Flowers Trust "A" G-14-218936 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 11.4K | 626K | Aug 2006 – Apr 2022 |
| Flowers Trust G-14-254259 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 10.8K | 707K | Oct 2009 – Aug 2026 |
| Flowers Trust G-14-244495 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 10.2K | 406K | Nov 2008 – Jul 2022 |
| Vollmert Trust G-14-246765 | Bracken Operating, L.L.C. only | Mendota, NW. (Granite Wash) | Roberts | 1 | 9.91K | 1.26M | Nov 2008 – Aug 2026 |
| Flowers Trust 'A' G-14-252891 | Bce-Mach III LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 9.67K | 664K | Jun 2008 – Dec 2020 |
| Martin Trust C G-14-252779 | Presidio Petroleum LLC only | Clark Martin (Granite Wash) | Roberts | 1 | 8.38K | 483K | Aug 2008 – Aug 2026 |
| Flowers Trust G-14-255022 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 8.13K | 586K | Feb 2010 – Aug 2026 |