| Hammond O-11-67710 | Extex Operating Company only | Salisbury (L. Leonard Sd.) | Gaines | 4 | 380K | 366K | Mar 1997 – Jul 2026 |
| Hammons, Lucy Hardaway O-6-1083 | Peles, LLC only | Neches (Woodbine) | Cherokee | 13 | 361K | 334K | Jan 1993 – Jul 2026 |
| Pierce, Reuben O-6-13469 | Diversified Production LLC only | Waskom (Hammond Sand) | Harrison | 2 | 150K | 461K | Oct 1995 – Jul 2026 |
| Williams, Ireland Oil Unit O-6-15689 | Diversified Production LLC only | Waskom (Hammond Sand) | Harrison | 2 | 94.8K | 330K | Jun 2019 – Jul 2026 |
| Birk O-13-15515 | Heydrick Petroleum Company only | Hammon (Kma Zone 3) | — | 3 | 93.7K | 19 | Jan 1993 – Jul 2026 |
| Hammond, J. W., -A- O-8-8161 | Quail Well Service, Inc. only | Taylor County Regular | — | 1 | 69.8K | 21 | Jan 1993 – Jul 2026 |
| Hammon, W. H. O-13-6052 | Triton Operating LLC only | K-M-A | Wichita | 8 | 61.7K | 34 | Jan 1993 – Jul 2026 |
| Hammond, Ada E. -B- O-1-4165 | Arrco Operating, LLC only | Hammond (San Miguel NO 4) | — | 1 | 56.5K | 21 | Jan 1993 – Jul 2026 |
| Murphree, J. O-13-5871 | R2Q Operating LLC only | Hammon (Kma Zone 3) | Wichita | 2 | 37K | 21 | Jan 1993 – Jul 2026 |
| Hammonds O-6-3652 | CLR Secondary Recovery, LLC only | Bethany, NE. (Lime 3850) | — | 1 | 25.4K | 941 | Jan 1993 – Jul 2026 |
| Birk, C. O-13-17331 | Heydrick Petroleum Company only | Hammon (Ellenburger) | Wichita | 2 | 23.1K | 7 | Jan 1993 – Jul 2026 |
| Cole O-13-32295 | Nabi Energy Holdings Limited LLC only | Hammon (Ellenburger) | Wichita | 2 | 22.8K | 0 | Aug 2011 – Jul 2026 |
| Ada Hammond Heirs O-1-14643 | Arrco Operating, LLC only | Hammond (San Miguel NO 4) | Zavala | 1 | 19K | 6.65K | Nov 2005 – Feb 2021 |
| Hammonds, Francis O-6-11700 | Samson Lone Star, LLC only | Chapel Hill, NE. (Travis Peak) | Smith | 1 | 12.4K | 42.6K | Jan 1993 – Aug 2011 |
| Downer Unit O-6-13475 | Devon Energy Production Co, L.P. only | Waskom (Hammond Sand) | Harrison | 1 | 12K | 52.9K | Nov 1994 – Mar 2010 |
| Hammonds, Fred O-13-21189 | Enr Operating, LLC only | Main (Canyon) | Foard | 1 | 11.7K | 1 | Jan 1993 – Jul 2026 |
| Hammon O-3-27177 | Saratoga Production Company LLC only | Saratoga | Hardin | 2 | 8.67K | 0 | Dec 2016 – Jul 2026 |
| Hammonds, Jack O-13-21670 | Henderson, Sam F. only | Joy, Northeast (Ellenburger) | Clay | 1 | 7.79K | 99 | Jan 1993 – Jan 2002 |
| McMillian O-1-16714 | Alamo Operating Company, L. C. only | Hammond (San Miguel NO 4) | Zavala | 1 | 5.62K | 0 | Aug 2010 – Jul 2015 |
| Hammond, Ada E. -A- O-1-4148 | Roma Oil and Gas, Inc. only | Hammond (San Miguel NO 4) | Zavala | 2 | 2.98K | 22 | Jan 1993 – Sep 2002 |
| Hammond, Ada O-1-12700 | Killam Oil Co., Ltd. only | Hammond (Anacacho) | Zavala | 1 | 2.31K | 18 | Jan 1993 – Apr 1997 |
| Hammond 203 O-10-35218 | Valley Resources, Inc. only | Oates | Pecos | 1 | 187 | 0 | Jan 1997 – Jun 1999 |
| Bonfire OV 13 O-13-34002 | Bonfire Operating LLC only | Hammon (Vogtsberger) | Wichita | 1 | 140 | 0 | Feb 2020 – Jul 2026 |
| Hammond Estate G-6-140127 | Comstock Oil & Gas, LLC only | Waskom (Cotton Valley) | Harrison | 1 | 0 | 136K | Jan 1993 – Nov 2019 |
| Williams, Ireland Unit G-6-289486 | Diversified Production LLC only | Waskom (Hammond Sand) | Harrison | 1 | 0 | 109K | Jun 2020 – Jul 2026 |
| Hammond Estate G-6-78593 | Sonat Exploration Company -Tyler only | Waskom (Cotton Valley) | Harrison | 1 | 0 | 0 | Jan 1993 – Jul 1994 |
| Hammond, Ada Heirs G-1-229628 | Sanchez Oil & Gas Corporation only | Hammond (Olmos Sand) | Zavala | 1 | 0 | 62.7K | Jul 2007 – Jun 2010 |
| Williams, Ireland Gas Unit G-6-291629 | Diversified Production LLC only | Waskom (Hammond Sand) | Harrison | 1 | 0 | 1.42K | Oct 2021 – Jul 2026 |
| McLofflin Gas Unit G-6-292197 | Diversified Production LLC only | Waskom (Hammond Sand) | Harrison | 1 | 0 | 69.9K | Mar 2022 – Jul 2026 |
| Hammond Estate HV Unit E G-6-298898 | TGNR East Texas II LLC only | Carthage (Haynesville Shale) | Harrison | 1 | 0 | 5.01M | Dec 2024 – Jul 2026 |
| Bell Gas Unit A G-6-286851 | Diversified Production LLC only | Waskom (Hammond Sand) | Harrison | 1 | 0 | 0 | Apr 2019 – Jul 2026 |
| Downer Unit G-6-249709 | Devon Energy Production Co, L.P. only | Waskom (Hammond Sand) | Harrison | 1 | 0 | 1 | May 2008 – Apr 2013 |
| Hammond G-5-241242 | Barrow-Shaver Resources Co. only | Red Oak (Dexter) | Leon | 1 | 0 | 1.44M | Dec 2006 – Jul 2026 |
| Hammond Estate G-6-248723 | Brookston Energy, Inc. only | Waskom (Cotton Valley) | Harrison | 1 | 0 | 1.6M | Jan 2009 – Jul 2026 |
| Hammond Estate G-6-246566 | Comstock Oil & Gas, LP only | Waskom (Travis Peak 7) | Harrison | 1 | 0 | 617K | Jan 2009 – Oct 2017 |
| Hammon Unit "A" G-4-149443 | Hilcorp Energy Company only | Monte Christo (Vksbg GG) | Hidalgo | 1 | 0 | 7.48M | May 1994 – Jul 2026 |
| Hammond -A- G-1-101429 | Williamson Operating Co. only | Hammond (Olmos '5') | Zavala | 1 | 0 | 0 | Jan 1993 – Aug 2002 |
| Hammond, Ada E. -A- G-1-49117 | Arrco Operating, LLC only | Hammond (Olmos Sand) | — | 1 | 0 | 210 | Jan 1993 – Jul 2026 |
| Hammond Estate G-6-234949 | Brookston Energy, Inc. only | Waskom (Cotton Valley) | Harrison | 1 | 0 | 364K | Nov 2007 – Jul 2026 |
| Strickland, H. W., -A- G-13-35523 | Crossbow Resources, LLC only | Darner-Hammon (Bend Congl.) | — | 1 | 0 | 231K | Jan 1993 – Jul 2026 |
| Hammond Estate G-6-233530 | Brookston Energy, Inc. only | Waskom (Cotton Valley) | Harrison | 1 | 0 | 691K | Aug 2007 – Jul 2026 |
| Hammon G-3-246224 | SK & Co. Oil and Gas Oper., LLC only | Old Waverly (Jackson 3000) | San Jacinto | 1 | 0 | 19.4K | Sep 2007 – Dec 2009 |
| Abernethy, W. G-13-35166 | Petex only | Darner-Hammon (Bend Congl.) | — | 1 | 0 | 190K | Jan 1993 – Jul 2026 |
| McKenzie Unit No. 1 G-13-39397 | Hamman, Blake only | Darner-Hammon (Bend Congl.) | Jack | 1 | 0 | 210K | Jan 1993 – May 2004 |
| Winford Unit G-13-42638 | Hamman, Blake only | Darner-Hammon (Bend Congl.) | Jack | 1 | 0 | 95.5K | Jan 1993 – Aug 2005 |
| Strickland, H. G-13-43635 | Hamman, Blake only | Darner-Hammon (Bend Congl.) | Jack | 1 | 0 | 171K | Jan 1993 – Jul 2004 |
| Huskey, F. G-13-72397 | Case Resources, LLC only | Darner-Hammon (Bend Congl.) | — | 1 | 0 | 352K | Jan 1993 – Jul 2026 |
| Franklin G-13-72487 | Willowbend Investments, Inc. only | Darner-Hammon (Bend Congl.) | — | 1 | 0 | 63K | Jan 1993 – Sep 2025 |
| Strickland G-13-75653 | | Darner-Hammon (Bend Congl.) | Wise | 1 | 0 | 73.8K | Jan 1993 – Sep 2014 |
| Frick-Strickland G-13-31243 | Crossbow Resources, LLC only | Darner-Hammon (Bend Congl.) | — | 1 | 0 | 307K | Jan 1993 – Jul 2026 |