| Hancock G-6-288928 | Burk Royalty Co., Ltd. only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 859K | 6.59M | Jan 2020 – Apr 2026 |
| Hancock G-6-293244 | Burk Royalty Co., Ltd. only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 436K | 2.88M | Jun 2022 – Apr 2026 |
| Hancock G-6-295127 | Burk Royalty Co., Ltd. only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 282K | 1.95M | May 2023 – Apr 2026 |
| Hancock-Smith Gas Unit G-6-259645 | TGNR East Texas II LLC only | Carthage, SE (CV) | Panola | 1 | 88.5K | 6.63M | Oct 2010 – Apr 2026 |
| Twomey Heirs-Hancock-Smith (Allo G-6-277056 | TGNR East Texas II LLC only | Carthage, SE (CV) | Panola | 1 | 70K | 4.71M | Mar 2015 – Apr 2026 |
| Hancock Unit G-6-234067 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 41.8K | 4.12M | Jul 2007 – Apr 2026 |
| Hancock-Smith Gas Unit G-6-267930 | TGNR East Texas II LLC only | Carthage, SE (CV) | Panola | 1 | 37.7K | 3.94M | Apr 2013 – Apr 2026 |
| Hancock, J.F. Unit G-6-144387 | Anadarko E&P Onshore LLC only | Carthage (Cotton Valley) | Panola | 1 | 31.7K | 3.46M | Jan 1993 – Jan 2012 |
| Hancock G-3-170803 | Home Petroleum Corp. only | Egypt (Cook MTN) | Wharton | 1 | 26.7K | 1.62M | Feb 1998 – Mar 2026 |
| Hancock, J.F. Unit G-6-141447 | TGNR East Texas LLC only | Carthage (Cotton Valley) | Panola | 1 | 22.5K | 1.42M | Jan 1993 – Apr 2026 |
| Hancock -I- G-2-88467 | Coastal Plains Energy, Inc. only | Provident City (Wilcox 12,500) | Lavaca | 1 | 21K | 5.89M | Jan 1993 – Oct 2024 |
| Hancock Unit G-6-161347 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 20.9K | 1M | Nov 1996 – Apr 2026 |
| Hancock Unit G-6-132268 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 19K | 1.22M | Jan 1993 – Apr 2026 |
| Hancock Unit G-6-169207 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 17.6K | 891K | Jun 1998 – Sep 2016 |
| Hancock Unit G-6-258518 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 16.9K | 1.15M | Aug 2010 – Apr 2026 |
| Hancock Unit G-6-222549 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 15.7K | 1.07M | Jun 2006 – Apr 2026 |
| Hancock G-3-174214 | Geodominion Petroleum only | Avo Grande (Yegua 6800) | Wharton | 1 | 15.3K | 687K | Aug 1999 – Dec 2001 |
| Hancock Ranch G-3-174180 | Samson Lone Star LP only | Wharco Shilling (Cook Mountain) | Wharton | 1 | 14.3K | 769K | Jul 1999 – Oct 2001 |
| Hancock Unit G-6-131172 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 13.1K | 1.66M | Jan 1993 – Apr 2026 |
| Hancock Unit G-6-164384 | Sheridan Production Co III, LLC only | Carthage (Cotton Valley) | Panola | 1 | 12.8K | 749K | Jul 1997 – Sep 2010 |
| Hancock, J.F. Unit G-6-147744 | TGNR East Texas LLC only | Carthage (Cotton Valley) | Panola | 1 | 12.6K | 1.62M | Nov 1993 – May 2013 |
| Hancock-Smith Gas Unit G-6-268866 | TGNR East Texas II LLC only | Carthage, SE (CV) | Panola | 1 | 12.3K | 524K | Apr 2013 – Mar 2026 |
| Hancock Unit G-6-236269 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 11.3K | 951K | Apr 2008 – Apr 2026 |
| Hancock Unit G-6-130038 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 11K | 746K | Jan 1993 – May 2017 |
| Hancock Unit G-6-161348 | Sheridan Production Co III, LLC only | Carthage (Cotton Valley) | Panola | 1 | 10.2K | 1.06M | Nov 1996 – Sep 2024 |
| Hancock Gas Unit #2 G-2-169244 | XTO Energy Inc. only | Provident City (Wilcox 12,100) | Lavaca | 1 | 9.82K | 3.19M | May 1998 – Aug 2006 |
| Hancock Unit G-6-228316 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 8.79K | 867K | Mar 2007 – Apr 2026 |
| Hancock Unit G-6-212014 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 8.5K | 882K | Apr 2005 – Oct 2021 |
| Hancock, et al G. U. G-2-171602 | XTO Energy Inc. only | Provident City (Wilcox 12,100) | Lavaca | 1 | 8.4K | 3.27M | Nov 1998 – Dec 2001 |
| Hancock G-3-263341 | Alta Mesa Services, LP only | Gresham (9700) | Wharton | 1 | 7.89K | 207K | Mar 2011 – Aug 2012 |
| Hancock, J. F. Unit G-6-98274 | Anadarko E&P Company LP only | Carthage (Cotton Valley) | Panola | 1 | 7.53K | 718K | Jan 1993 – Oct 2012 |
| Hancock Unit G-6-79296 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 7.48K | 808K | Jan 1993 – Apr 2026 |
| Hancock Unit G-6-237107 | Sheridan Production Company, LLC only | Carthage (Cotton Valley) | Panola | 1 | 6.84K | 558K | May 2008 – May 2017 |
| Hancock, Mozelle Unit G-3-97566 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Lee | 1 | 6.81K | 556K | Jan 1993 – Apr 2006 |
| Hancock Unit G-6-228359 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 6.62K | 794K | Apr 2007 – Apr 2026 |
| Hancock, J.F. Unit G-6-142618 | TGNR East Texas LLC only | Carthage (Travis Peak-Smith, S.) | Panola | 1 | 6.39K | 1.28M | Jan 1993 – Apr 2007 |
| Hancock, J.F. Unit G-6-140336 | TGNR East Texas LLC only | Carthage (Cotton Valley) | Panola | 1 | 5.04K | 1.64M | Jan 1993 – Apr 2026 |
| Hancock, et al G. U. G-2-167721 | Cabot Oil & Gas Corporation only | Provident City (Wilcox 7) | Lavaca | 1 | 5.03K | 1.36M | Oct 1997 – Oct 1998 |
| Hancock G-6-120478 | Slant Operating, LLC only | Stockman, South (Pettit) | Shelby | 1 | 4.67K | 342K | Jun 1993 – Sep 2020 |
| Hancock, J.F. Unit G-6-81259 | TGNR East Texas LLC only | Carthage (Cotton Valley) | Panola | 1 | 4.51K | 768K | Jan 1993 – Feb 2024 |
| Hancock G-6-237017 | RFE Operating, LLC only | Stockman (Cotton Valley) | Shelby | 1 | 4.28K | 238K | Jan 2008 – Nov 2017 |
| Hancock-Smith Gas Unit G-6-66059 | TGNR East Texas II LLC only | Carthage, SE (CV) | Panola | 1 | 3.42K | 290K | Jan 1993 – Jun 2015 |
| Hancock "V" G-5-114372 | Valence Operating Company only | Teague (CV-Bossier Cons.) | Freestone | 1 | 3.02K | 1.1M | Jan 1993 – Apr 2026 |
| Hancock, et al G. U. G-2-174119 | Dreyfus, Louis Natural Gas Corp only | Provident City (Wilcox 12,500) | Lavaca | 1 | 2.88K | 1.01M | Oct 1998 – Aug 2000 |
| Hancock GU 1 G-2-232304 | Fowler Oil & Gas LLC only | Provident City (Wilcox 11,900) | Lavaca | 1 | 2.76K | 2.29M | Jul 2006 – Mar 2026 |
| Hancock G-3-172616 | Samson Lone Star, LLC only | Wharco Shilling (Wilcox, Up.-D-) | Wharton | 1 | 2.65K | 274K | Feb 1999 – Mar 2009 |
| Hancock Gas Unit 1 G-2-187260 | XTO Energy Inc. only | Provident City (Wilcox 12,100) | Lavaca | 1 | 2.59K | 1.4M | Oct 2001 – Nov 2006 |
| Hancock -H- G-2-158438 | Cimarex Energy Co. of Colorado only | Provident City (Wilcox 12,500) | Lavaca | 1 | 2.18K | 709K | May 1996 – May 2010 |
| Hancock Estate "B" G-2-163129 | Coastal Plains Energy, Inc. only | Provident City (Wilcox 12,500) | Lavaca | 1 | 1.86K | 2.12M | May 1997 – Apr 2026 |
| Hancock G-6-151031 | Petrohawk Operating Company only | Carthage (Travis Peak 6450) | Panola | 1 | 1.83K | 648K | Jul 1994 – Dec 2006 |