| Hancock G-6-288928 | Burk Royalty Co., Ltd. only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 859K | 6.59M | Jan 2020 – Apr 2026 |
| Hancock O-11-66493 | Crescent Energy Operating, LLC only | Tex-Mex, SE. (Wichita Albany) | Gaines | 12 | 683K | 1.61M | Jan 1993 – Apr 2026 |
| Hancock-Tom 6F O-10-49167 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 1 | 677K | 754K | Mar 2018 – Apr 2026 |
| Hancock-Tom 6D O-10-49168 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 1 | 633K | 694K | Mar 2018 – Apr 2026 |
| Hancock O-3-20921 | Northfield Enterprises, Inc. only | Kurten (Buda) | Robertson | 6 | 472K | 430K | Jan 1993 – Jun 2022 |
| Hancock-Tom 6E O-10-49269 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 1 | 458K | 577K | Mar 2018 – 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, Frank O-11-64394 | Juno Operating Company III, LLC only | Hoople (Clear Fork) | Crosby | 12 | 340K | 65.8K | Jan 1993 – Mar 2026 |
| Hancock O-10-33228 | Silver Cross Energy Partners LLC only | Nix (Clearfork) | Andrews | 6 | 324K | 1.47M | Jan 1993 – Mar 2026 |
| Hancock G-6-295127 | Burk Royalty Co., Ltd. only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 282K | 1.95M | May 2023 – Apr 2026 |
| Hancock-Tom 6A O-10-48603 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 1 | 274K | 912K | Jul 2017 – Apr 2026 |
| Hancock-Hancock "A" O-3-24231 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Robertson | 1 | 260K | 259K | Jan 2002 – Mar 2026 |
| Hancock, Wesley O-11-65279 | Juno Operating Company III, LLC only | Hoople (Clear Fork) | Lubbock | 11 | 250K | 56.2K | Jan 1993 – Jun 2009 |
| Hancock-Tom 6B O-10-48613 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 1 | 244K | 936K | Jul 2017 – Apr 2026 |
| Hancock, Mozelle O-3-22697 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Lee | 1 | 220K | 1.06M | Mar 1995 – Aug 2025 |
| Hancock, Harvey O-11-65513 | Juno Operating Company III, LLC only | Hoople (Clear Fork) | Lubbock | 7 | 204K | 28 | Jan 1993 – Apr 2026 |
| Hancock-Tom 6C O-10-48612 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 1 | 201K | 868K | Aug 2017 – Apr 2026 |
| Hancock O-3-23207 | Northfield Enterprises, Inc. only | Giddings (Buda) | Robertson | 2 | 198K | 180K | Aug 1996 – Jul 2018 |
| Broussard-Hancock-Stovall O-3-2871 | Apache Corporation only | Magnet Withers | Wharton | 1 | 192K | 79.2K | Jan 1993 – Dec 2013 |
| Hancock-Hancock "a" Unit O-3-22150 | Wildfire Energy Operating LLC only | Kurten (Buda) | Robertson | 1 | 165K | 154K | Aug 1993 – Nov 2001 |
| Hancock 53 O-14-8957 | High River Res Operating, LLC only | Allen-Parker (Marmaton) | Ochiltree | 2 | 142K | 139K | Jun 2013 – Mar 2026 |
| Hancock "12" O-10-42546 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 3 | 125K | 353K | Jan 2012 – Sep 2024 |
| 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 |
| Sue Hancock O-11-70732 | Juno Operating Company III, LLC only | Hoople (Clear Fork) | Crosby | 4 | 80.6K | 0 | Jul 2018 – Apr 2026 |
| Hancock 133 O-14-8423 | Courson Oil & Gas, Inc. only | Pan Petro (Cleveland) | Ochiltree | 1 | 79.7K | 337K | Oct 2010 – Apr 2026 |
| Hancock-Wallace O-3-9623 | J2R Energy, LLC only | Hillje, South | Wharton | 2 | 79.6K | 71.5K | Jan 1993 – 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 |
| Mozelle Hancock O-3-24913 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Lee | 1 | 68.4K | 1.49M | Jun 2006 – Jun 2025 |
| Hancock, P. et Al O-5-2147 | Grizzle, Joe B. only | Shelton (Cotton Valley) | Red River | 1 | 60.5K | 306 | Jan 1993 – Jul 2019 |
| Hancock "A" O-10-38520 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 5 | 60.1K | 114K | Oct 2007 – Jun 2022 |
| Hancock O-13-1317 | Pop Operating Company only | Vogtsberger, South | Archer | 1 | 59.6K | 21 | Jan 1993 – Mar 2026 |
| Broussard-Hancock-Stovall -A- O-3-2917 | Apache Corporation only | Magnet Withers | Wharton | 1 | 42.1K | 88.5K | Jan 1993 – Aug 2004 |
| 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 "A" O-13-1305 | Pop Operating Company only | Vogtsberger, South | Archer | 2 | 34.8K | 32 | Jan 1993 – Mar 2026 |
| Slaughter-Hancock O-10-21025 | Otb Operating, LLC only | Sulphur Draw (Dean 8790) | Martin | 3 | 34.4K | 39.2K | Jan 1993 – Nov 2022 |
| 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, John O-3-22035 | Northfield Enterprises, Inc. only | Kurten (Austin Chalk) | Robertson | 1 | 29.8K | 211 | May 1993 – Jun 2005 |
| Willis, Wallace & Hancock O-3-2168 | Harrison, Sam G. Oil, Inc. only | Hillje, South | Wharton | 2 | 29.3K | 29.4K | Jan 1993 – May 2003 |
| Hancock G-3-170803 | Home Petroleum Corp. only | Egypt (Cook MTN) | Wharton | 1 | 26.7K | 1.62M | Feb 1998 – Mar 2026 |
| Hancock, E. A. O-8-4032 | Pardue Oil, Inc. only | Hancock (Strawn) | Stephens | 2 | 22.9K | 142 | Jan 1993 – 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 O-11-70259 | Juno Operating Company III, LLC only | Hoople (Clear Fork) | Crosby | 1 | 21.5K | 0 | Nov 2014 – Apr 2026 |
| Hancock, D.W. O-2-6266 | Redhorn Resources, LLC only | Clareville (Hockley 4500) | Bee | 3 | 21.5K | 132 | Jan 1993 – Jan 2026 |
| Hancock-Bowman O-4-13972 | Blue Wing Energy, Inc. only | Cadena (Hockley 1 Seg C) | Duval | 1 | 21.2K | 783 | Sep 2014 – Oct 2020 |
| 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 |