| Hammond Estate G-6-227861 | Brookston Energy, Inc. only | Waskom (Cotton Valley) | Harrison | 1 | 21.1K | 447K | Nov 2006 – Apr 2026 |
| Hammond G-5-241242 | Barrow-Shaver Resources Co. only | Red Oak (Dexter) | Leon | 1 | 18.9K | 1.44M | Dec 2006 – Nov 2011 |
| Hammon Unit "A" G-4-149443 | Hilcorp Energy Company only | Monte Christo (Vksbg GG) | Hidalgo | 1 | 9.69K | 7.48M | May 1994 – Jan 2004 |
| McLofflin Gas Unit G-6-292197 | Diversified Production LLC only | Waskom (Hammond Sand) | Harrison | 1 | 6.77K | 69.9K | Mar 2022 – Apr 2026 |
| Williams, Ireland Unit G-6-289486 | Diversified Production LLC only | Waskom (Hammond Sand) | Harrison | 1 | 6.07K | 109K | Jun 2020 – Apr 2026 |
| Hammond Estate G-6-248723 | Brookston Energy, Inc. only | Waskom (Cotton Valley) | Harrison | 1 | 4.91K | 1.6M | Jan 2009 – Apr 2026 |
| Hammond Unit G-13-268157 | Bedrock Production, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 3.79K | 280K | Jan 2013 – Mar 2016 |
| Hammond Estate G-6-142094 | Comstock Oil & Gas, LP only | Waskom (Cotton Valley) | Harrison | 1 | 3.17K | 656K | Jan 1993 – Jun 2003 |
| Hammond Estate G-6-233530 | Brookston Energy, Inc. only | Waskom (Cotton Valley) | Harrison | 1 | 2.84K | 691K | Aug 2007 – Oct 2025 |
| Hammond Estate G-6-144724 | Comstock Oil & Gas, LP only | Waskom (Cotton Valley) | Harrison | 1 | 1.94K | 975K | Feb 1993 – Dec 2008 |
| Hammond Estate G-6-222603 | Brookston Energy, Inc. only | Waskom (Cotton Valley) | Harrison | 1 | 1.72K | 365K | Aug 2006 – Apr 2026 |
| Franklin G-13-72487 | Willowbend Investments, Inc. only | Darner-Hammon (Bend Congl.) | Jack | 1 | 1.29K | 63K | Jan 1993 – Mar 2025 |
| Strickland, H. W. G-13-112845 | Case Resources, LLC only | Darner-Hammon (Bend Congl.) | Jack | 1 | 1.16K | 266K | Jan 1993 – Dec 2024 |
| Hammond Estate G-6-234949 | Brookston Energy, Inc. only | Waskom (Cotton Valley) | Harrison | 1 | 1.12K | 364K | Nov 2007 – Oct 2025 |
| Frick-Strickland G-13-31243 | Crossbow Resources, LLC only | Darner-Hammon (Bend Congl.) | Jack | 1 | 1.04K | 307K | Jan 1993 – Apr 2026 |
| McKenzie Unit No. 1 G-13-39397 | Hamman, Blake only | Darner-Hammon (Bend Congl.) | Jack | 1 | 831 | 210K | Jan 1993 – Apr 2004 |
| Hammond G-14-89479 | Cambridge Production, Inc. only | Wheeler NW (Hunton) | Wheeler | 1 | 654 | 119K | Jan 1993 – Jun 1997 |
| Strickland, H. W. G-13-100641 | Hamman, Blake only | Darner-Hammon (Bend Congl.) | Wise | 1 | 531 | 9.81K | Jan 1993 – Aug 1996 |
| Hammond Estate G-6-140127 | Comstock Oil & Gas, LLC only | Waskom (Cotton Valley) | Harrison | 1 | 400 | 136K | Jan 1993 – Jul 1997 |
| Strickland G-13-187811 | GO Oil Corp. only | Darner-Hammon (Bend Congl.) | Wise | 1 | 359 | 129K | Mar 2002 – Jun 2019 |
| Strickland, H. W. G-13-21352 | Hamman, Blake only | Darner-Hammon (Bend Congl.) | Wise | 1 | 286 | 71.6K | Jan 1993 – Dec 2015 |
| Hammond G-14-169698 | Cambridge Production, Inc. only | Wheeler, NW. (Woodford) | Wheeler | 1 | 201 | 15K | Apr 1998 – Mar 1999 |
| Holley G-13-113020 | Quest Petroleum Company only | Darner-Hammon (Bend Congl.) | Jack | 1 | 197 | 39.7K | Jan 1993 – Dec 2014 |
| Strickland, H. W., -A- G-13-35523 | Crossbow Resources, LLC only | Darner-Hammon (Bend Congl.) | Wise | 1 | 74 | 231K | Jan 1993 – Apr 2026 |
| Hammon G-8-66189 | Rollo Resources, LLC only | Meeker (Conglomerate 4400) | Palo Pinto | 1 | 73 | 326K | Jul 1993 – Sep 2015 |
| Franklin G-13-113031 | Willowbend Investments, Inc. only | Darner-Hammon (Bend Congl.) | Jack | 1 | 68 | 7.71K | Jan 1993 – Apr 2001 |
| Tucker G-13-158510 | GO Oil Corp. only | Darner-Hammon (Bend Congl.) | Jack | 1 | 30 | 28.5K | Aug 1997 – Oct 2017 |
| Holley G-13-113032 | Pursley, John only | Darner-Hammon (Bend Congl.) | Jack | 1 | 28 | 23.3K | Jan 1993 – Jan 2002 |
| Huskey, F. G-13-21356 | Raylee Operating Company only | Darner-Hammon (Bend Congl.) | Jack | 1 | 20 | 30K | Jan 1993 – Aug 2002 |
| Strickland G-13-75653 | | Darner-Hammon (Bend Congl.) | Wise | 1 | 16 | 73.8K | Jan 1993 – Mar 2014 |
| Williams, Ireland Gas Unit G-6-291629 | Diversified Production LLC only | Waskom (Hammond Sand) | Harrison | 1 | 5 | 1.42K | Oct 2021 – Jan 2022 |
| Hammond Estate G-6-142043 | Sonat Exploration Company -Tyler only | Waskom (Travis Peak 7) | Harrison | 1 | 3 | 3 | May 1994 – May 1994 |
| Hammond, E.R. G-8-88784 | Swaim, Charles only | Liberty Oak (Big Saline) | Erath | 1 | 0 | 5.89K | Dec 2000 – Aug 2018 |
| Hammond, E.R. G-8-88785 | Swaim, Charles only | Liberty Oak (Big Saline) | Erath | 1 | 0 | 7.15K | Dec 2000 – Aug 2018 |
| Hammond,l.p. G-8-100870 | Concho Products only | Desdemona,n. (Bend Conglomerate) | Eastland | 1 | 0 | 0 | — |
| Hammond Estate G-6-78593 | Sonat Exploration Company -Tyler only | Waskom (Cotton Valley) | Harrison | 1 | 0 | 0 | — |
| Franklin G-13-21353 | Willowbend Investments, Inc. only | Darner-Hammon (Bend Congl.) | Jack | 1 | 0 | 0 | — |
| Hammon G-3-246224 | SK & Co. Oil and Gas Oper., LLC only | Old Waverly (Jackson 3000) | San Jacinto | 1 | 0 | 19.4K | Sep 2007 – Oct 2008 |
| Abernethy, W. G-13-35166 | Petex only | Darner-Hammon (Bend Congl.) | Jack | 1 | 0 | 190K | Jan 1993 – Apr 2026 |
| Hammond, Ada -A- G-1-40719 | Killam Oil Co., Ltd. only | Hammond (Olmos Sand) | Zavala | 1 | 0 | 0 | — |
| Hammon Unit G-2-104782 | Score Energy Company only | Hope (Miocene 1250) | Lavaca | 1 | 0 | 0 | — |
| Winford Unit G-13-42638 | Hamman, Blake only | Darner-Hammon (Bend Congl.) | Jack | 1 | 0 | 95.5K | Jan 1993 – Jun 2004 |
| Strickland, H. G-13-43635 | Hamman, Blake only | Darner-Hammon (Bend Congl.) | Jack | 1 | 0 | 171K | Jan 1993 – Jun 2004 |
| Huskey, F. G-13-72397 | Case Resources, LLC only | Darner-Hammon (Bend Congl.) | Jack | 1 | 0 | 352K | Jan 1993 – Aug 2024 |
| Hammon Unit G-2-97910 | Score Energy Company only | Hope (Miocene 1550) | Lavaca | 1 | 0 | 0 | — |
| Hammond G-13-79193 | Raylee Operating Company only | Cary-Mag, South (Conglomerate) | Jack | 1 | 0 | 0 | — |
| Ada Hammond Heirs G-1-290040 | Arrco Operating, LLC only | Hammond (Olmos Sand) | Zavala | 1 | 0 | 9.5K | Oct 2018 – Apr 2026 |
| Hammond, Ada Heirs G-1-229628 | Sanchez Oil & Gas Corporation only | Hammond (Olmos Sand) | Zavala | 1 | 0 | 62.7K | Jul 2007 – Apr 2009 |
| Hammond -A- G-1-101429 | Williamson Operating Co. only | Hammond (Olmos '5') | Zavala | 1 | 0 | 0 | — |
| Johnson-Hammonds G-13-158370 | Mid-Continental Exploration,inc. only | Thalia (Tannehill) | Foard | 1 | 0 | 57K | Mar 1996 – Jul 2000 |