| Summers, E. L. et al Unit G-3-94833 | Hilcorp Energy Company only | Rugeley, SW (12850, N) | Matagorda | 1 | 160K | 5.02M | Jan 1993 – Apr 2026 |
| Summers Unit G-13-273302 | EOG Resources, Inc. only | Newark, East (Barnett Shale) | Montague | 1 | 32.5K | 1.71M | Nov 2010 – Apr 2026 |
| Summers, Bruni G-4-178208 | Killam Oil Co., Ltd. only | Moritas Creek (8500) | Webb | 1 | 25.1K | 3.08M | Jun 2000 – Apr 2026 |
| Summers Unit G-13-273301 | EOG Resources, Inc. only | Newark, East (Barnett Shale) | Montague | 1 | 24.3K | 1.07M | Nov 2010 – Apr 2026 |
| Bruni Summers G-4-188698 | Killam Oil Co., Ltd. only | Moritas Creek (8500) | Webb | 1 | 24.1K | 3.69M | Feb 2002 – Apr 2026 |
| Bruni Summers G-4-179106 | Killam Oil Co., Ltd. only | Rottersman (8500) | Webb | 1 | 15.6K | 1.73M | Sep 2000 – Apr 2026 |
| Summers, Bruni G-4-180437 | Killam Oil Co., Ltd. only | Moritas Creek (8500) | Webb | 1 | 14.8K | 1.63M | Dec 2000 – Apr 2026 |
| Bruni-Summers G-4-170860 | Arete Operating Company III, LLC only | Lilia (Wilcox) | Webb | 1 | 7.77K | 3.02M | Sep 1998 – Apr 2026 |
| Summers, Bruni G-4-178531 | Killam Oil Co., Ltd. only | Rottersman (Lobo) | Webb | 1 | 7.47K | 956K | Jun 2000 – Mar 2019 |
| Bruni-Summers G-4-164969 | Arete Operating Company III, LLC only | Rottersman (Lobo) | Webb | 1 | 7.2K | 1.45M | Sep 1997 – Apr 2026 |
| Bruni-Summers G-4-177871 | Arete Operating Company III, LLC only | Lilia (Wilcox) | Webb | 1 | 5.89K | 1.98M | Jun 2000 – Apr 2026 |
| Bruni-Summers G-4-215506 | Arete Operating Company III, LLC only | Lilia (Wilcox 8700) | Webb | 1 | 5.89K | 1.34M | Nov 2005 – Apr 2026 |
| Bruni-Summers G-4-169608 | Arete Operating Company III, LLC only | Lilia (Wilcox) | Webb | 1 | 4.36K | 2.37M | Jul 1998 – Apr 2026 |
| Bruni-Summers G-4-163735 | Arete Operating Company III, LLC only | Lilia (Wilcox) | Webb | 1 | 4.28K | 508K | Jun 1997 – Dec 2007 |
| Summers Unit G-6-82336 | Largo Oil Company only | Sym-Jac, West (Hosston) | Cherokee | 1 | 3.56K | 323K | Jan 1993 – Apr 2026 |
| Summers G-6-177036 | M. E. Operating & Services, Inc. only | Carthage (Cotton Valley) | Panola | 1 | 3.28K | 317K | Mar 2000 – May 2008 |
| Summers, E. L. G-3-43201 | Gcows Operating LLC only | Rowan, North (10,800) | Brazoria | 1 | 3.04K | 1.23M | Jan 1993 – Mar 2024 |
| Bruni Summers TR 11 G-4-169478 | Killam Oil Co., Ltd. only | Dolores Creek, South (Wx. 9200) | Webb | 1 | 3.02K | 646K | May 1998 – Jan 2005 |
| Summers, Bruni G-4-180470 | Killam Oil Co., Ltd. only | B.M.T. (Lobo Cons.) | Webb | 1 | 3K | 348K | Oct 2000 – Aug 2006 |
| Bruni-Summers G-4-174429 | Arete Operating Company III, LLC only | Lilia (Wilcox) | Webb | 1 | 2.99K | 435K | Sep 1999 – Apr 2026 |
| Bruni-Summers G-4-171101 | Arete Operating Company III, LLC only | Rottersman (Lobo) | Webb | 1 | 2.71K | 1.92M | Nov 1998 – Apr 2026 |
| Bruni-Summers G-4-175840 | Arete Operating Company III, LLC only | Lilia (Wilcox) | Webb | 1 | 2.36K | 301K | Jan 2000 – Apr 2026 |
| Summers, J.W. GU 1 G-6-187162 | Great American Resources Inc. only | Reklaw (Travis Peak) | Cherokee | 1 | 2.14K | 375K | Jan 2002 – Apr 2026 |
| Summers Unit G-6-245727 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 2K | 782K | Sep 2008 – Apr 2026 |
| Summers North Falcon Creek G-6-110930 | Great American Resources Inc. only | Reklaw (Travis Peak) | Cherokee | 1 | 1.94K | 136K | Mar 1994 – Apr 2026 |
| Summers, J.W. GU 1 G-6-186734 | Great American Resources Inc. only | Reklaw (Travis Peak) | Cherokee | 1 | 1.82K | 168K | Dec 2001 – Apr 2026 |
| Summers, J.W. GU 1 G-6-186298 | Great American Resources Inc. only | Reklaw (Travis Peak) | Cherokee | 1 | 1.77K | 311K | Nov 2001 – Apr 2026 |
| Summers, Bruni G-4-178557 | Killam Oil Co., Ltd. only | Rottersman (8500) | Webb | 1 | 1.72K | 230K | Dec 1999 – May 2016 |
| Summers, Bruni G-4-192345 | Killam Oil Co., Ltd. only | Rottersman (8500) | Webb | 1 | 1.57K | 411K | Nov 2002 – Jan 2016 |
| Bruni-Summers G-4-164874 | Arete Operating Company III, LLC only | Lilia (Wilcox) | Webb | 1 | 1.57K | 397K | Sep 1997 – Apr 2026 |
| Bruni-Summers G-4-184068 | Arete Operating Company III, LLC only | Lilia (Wilcox) | Webb | 1 | 1.51K | 411K | Jun 2001 – Apr 2026 |
| Summers, Bruni G-4-168392 | Killam Oil Co., Ltd. only | Rottersman (Lobo) | Webb | 1 | 1.47K | 159K | May 1998 – Nov 1999 |
| Summers G-2-166116 | Dale Operating Company only | Johnstone (Middle Frio) | Victoria | 1 | 1.44K | 861K | Oct 1997 – Mar 2008 |
| Bruni-Summers G-4-185325 | Arete Operating Company III, LLC only | Lilia (Wilcox) | Webb | 1 | 1.41K | 309K | Aug 2001 – Apr 2026 |
| Summers, Bruni Tr. 5 G-4-200035 | Killam Oil Co., Ltd. only | Rottersman (8500) | Webb | 1 | 1.34K | 283K | Jan 2004 – Jan 2016 |
| Summers Gas Unit G-6-239601 | Pwep Operating, LLC only | Oak Hill (Cotton Valley) | Harrison | 1 | 1.15K | 507K | Jul 2008 – Feb 2026 |
| Summers Gas Unit G-6-229408 | Pwep Operating, LLC only | Oak Hill (Cotton Valley) | Harrison | 1 | 1.13K | 299K | May 2007 – Feb 2026 |
| Bruni-Summers G-4-190614 | Arete Operating Company II, LLC only | Lilia (Wilcox) | Webb | 1 | 1.11K | 117K | Jan 2002 – Jul 2003 |
| Summers G-6-67689 | XTO Energy Inc. only | Alto (Travis Peak) | Cherokee | 1 | 1.09K | 297K | Jan 1993 – Jun 2016 |
| Summers G-14-255698 | High River Res Operating, LLC only | Panhandle, West | Potter | 1 | 943 | 120K | Jan 2010 – Oct 2025 |
| Bruni-Summers G-4-183605 | Arete Operating Company III, LLC only | Lilia (Wilcox) | Webb | 1 | 543 | 233K | Jun 2001 – Apr 2026 |
| Bruni-Summers G-4-269229 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 492 | 136K | Jan 2013 – Dec 2018 |
| Summers Gas Unit G-6-162695 | Atoka Operating, Inc. only | Sym-Jac, West (Hosston) | Cherokee | 1 | 475 | 126K | Feb 1997 – Aug 2006 |
| Bruni-Summers G-4-171067 | Arete Operating Company II, LLC only | Rottersman (Lobo) | Webb | 1 | 438 | 249K | Jul 1998 – Nov 2005 |
| Summers, J.W. GU 1 G-6-198257 | Great American Resources Inc. only | Reklaw (Woodbine) | Cherokee | 1 | 255 | 15.8K | Mar 2003 – Aug 2003 |
| Summers North Falcon Creek G-6-119801 | Great American Resources Inc. only | Falcon Creek (Anhydrite) | Cherokee | 1 | 243 | 88.3K | Jan 1993 – Apr 2026 |
| Summers, Bruni G-4-196636 | Arete Operating Company III, LLC only | Rottersman (8500) | Webb | 1 | 229 | 81.9K | Aug 2003 – Apr 2026 |
| Summers G-6-238188 | M. E. Operating & Services, Inc. only | Carthage (Travis Peak-Collins) | Panola | 1 | 78 | 127K | Jun 2008 – Sep 2017 |
| Summers G-13-214589 | Trio Consulting & Management,llc only | Newark, East (Barnett Shale) | Tarrant | 1 | 77 | 286K | Oct 2005 – Mar 2008 |
| Summers, E. L. G-3-126726 | Gcows Operating LLC only | Rowan, NE (Frio 10600) | Brazoria | 1 | 0 | 0 | — |