| Collins, W. L. G-8-136020 | Somerset Operating, LLC only | Toto (Caddo Conglomerate) | Parker | 1 | 522 | 487K | Jan 1993 – Feb 2026 |
| Leatherwood-Ross Unit G-8-84665 | Sage Oil and Gas, LLC only | Toto (Caddo Conglomerate) | Parker | 1 | 455 | 560K | Jan 1993 – Jan 2020 |
| Lesikar G-8-108218 | Chapparal Operating Co. only | Toto (Caddo Conglomerate) | Parker | 1 | 367 | 753K | Jan 1993 – Apr 2026 |
| Hamblin G-8-283179 | North Texas Plugging, LLC only | Toto (Caddo Conglomerate) | Parker | 1 | 312 | 8.51K | Aug 2017 – Nov 2019 |
| Bud G-8-108233 | Patton Exploration, Inc. only | Toto (Caddo Conglomerate) | Parker | 1 | 310 | 55.5K | Jan 1993 – Sep 2025 |
| Donald, Christine G-8-123319 | Upham Oil & Gas Company only | Toto (Caddo Conglomerate) | Palo Pinto | 1 | 152 | 37.7K | Jan 1993 – Apr 2015 |
| Gunn G-8-156096 | Pioneer Natural Res. USA, Inc. only | Toto (Caddo Conglomerate) | Parker | 1 | 93 | 167K | Aug 1995 – Mar 2010 |
| Mitchell, Donovan "K" G-8-80408 | Patton Exploration, Inc. only | Toto (Caddo Conglomerate) | Parker | 1 | 70 | 14.3K | Jan 1993 – Dec 2019 |
| Little E. A. G-8-70780 | 4M Oil & Gas, LLC only | Toto (Caddo Conglomerate) | Parker | 1 | 54 | 215K | Jan 1993 – Nov 2025 |
| Sanders, Jake G-8-86106 | Patton Exploration, Inc. only | Toto (Caddo Conglomerate) | Parker | 1 | 52 | 303K | Jan 1993 – Dec 2021 |
| Martin Estate G-8-73107 | Patton Exploration, Inc. only | Toto (Caddo Conglomerate) | Parker | 1 | 51 | 128K | Jan 1993 – Dec 2019 |
| Jordan, William G-8-75171 | RKW Operating LLC only | Toto (Caddo Conglomerate) | Parker | 1 | 45 | 82.5K | Jan 1993 – Apr 2023 |
| Puryear-Lesikar Unit G-8-106135 | Chapparal Operating Co. only | Toto (Caddo Conglomerate) | Parker | 1 | 39 | 155K | Jan 1993 – Jan 2012 |
| Elliott - Oglesby G-8-114726 | Best Petroleum Explorations,inc. only | Toto (Caddo Conglomerate) | Jack | 1 | 30 | 96.8K | Jan 1993 – Sep 2001 |
| Noland,truman G-8-64082 | RKW Operating LLC only | Toto (Caddo Conglomerate) | Parker | 1 | 29 | 17.5K | Jan 1993 – Jun 2023 |
| Ashbrook G-8-74932 | RKW Operating LLC only | Toto (Caddo Conglomerate) | Parker | 1 | 29 | 77.2K | Jan 1993 – Jun 2024 |
| Dalworth G-8-123668 | Chapparal Operating Co. only | Toto (Caddo Conglomerate) | Parker | 1 | 28 | 133K | Jan 1993 – Nov 2025 |
| Atchley Unit G-8-76073 | RKW Operating LLC only | Toto (Caddo Conglomerate) | Parker | 1 | 25 | 38.6K | Jan 1993 – Sep 2024 |
| Lapres Unit G-8-118269 | RKW Operating LLC only | Toto (Caddo Conglomerate) | Parker | 1 | 17 | 122K | Jan 1993 – Sep 2024 |
| Weatherford G-8-75933 | Somerset Operating, LLC only | Toto (Caddo Conglomerate) | Parker | 1 | 15 | 285K | Jan 1993 – Feb 2026 |
| Lesikar, Wm. G-8-291411 | Chapparal Operating Co. only | Toto (Caddo Conglomerate) | Parker | 1 | 10 | 19.5K | Aug 2021 – Apr 2026 |
| Mitchell, Donovan -B- G-8-83904 | Patton Exploration, Inc. only | Toto (Caddo Conglomerate) | Parker | 1 | 9 | 183K | Jan 1993 – Oct 2019 |
| Collins, W. L. G-8-55310 | Somerset Operating, LLC only | Toto (Caddo Conglomerate) | Parker | 1 | 9 | 118K | Jan 1993 – Feb 2026 |
| Smith G-8-70052 | Itx Pipeline Company, LLC only | Toto (Caddo Conglomerate) | Parker | 1 | 6 | 137K | Jan 1993 – Apr 2026 |
| McCann G-8-88091 | MKS Natural Gas Company only | Toto (Caddo Conglomerate) | Parker | 1 | 3 | 41.3K | Jan 1993 – May 2014 |
| Isbell G-8-73373 | Somerset Operating, LLC only | Toto (Caddo Conglomerate) | Parker | 1 | 3 | 234K | Jan 1993 – Feb 2026 |
| Turner G-8-117999 | Brammer Petroleum, Inc. only | Toto (Caddo Conglomerate) | Parker | 1 | 3 | 5.66K | Jan 1993 – Apr 2000 |
| Smith,charles G-8-130943 | MKS Natural Gas Company only | Toto (Caddo Conglomerate) | Parker | 1 | 3 | 27.4K | Jan 1993 – Apr 2014 |
| Waters G-8-77469 | Arrowhead Productions, LP only | Toto (Caddo Conglomerate) | Parker | 1 | 2 | 89.6K | Jan 1993 – Dec 2007 |
| Turner G-8-117998 | Brammer Petroleum, Inc. only | Toto (Caddo Conglomerate) | Parker | 1 | 2 | 3.73K | Jan 1993 – Apr 2000 |
| Boecker G-8-18442 | Patton Exploration, Inc. only | Toto (Caddo Conglomerate) | Parker | 1 | 1 | 167K | Jan 1993 – May 2010 |
| Mitchell, Donovan "A" G-8-67293 | Patton Exploration, Inc. only | Toto (Caddo Conglomerate) | Parker | 1 | 1 | 20.3K | Jan 1993 – Jan 2001 |
| McDaniel Unit G-8-84205 | Citation Oil & Gas Corp. only | Toto (Caddo Conglomerate) | Parker | 1 | 1 | 434K | Mar 1995 – Sep 2016 |
| Lamar G-8-82465 | Oxxn only | Toto (Caddo Conglomerate) | Parker | 1 | 0 | 80K | Jan 1993 – May 2014 |
| McDaniel Unit G-8-82439 | Citation Oil & Gas Corp. only | Toto (Caddo Conglomerate) | Parker | 1 | 0 | 0 | — |
| Wright, S. F. G-8-82054 | Arrowhead Productions, LP only | Toto (Caddo Conglomerate) | Parker | 1 | 0 | 22.3K | Jan 1993 – Dec 2007 |
| Bradshaw G-8-109854 | Caruthers Consulting, Inc. only | Toto (Caddo Conglomerate) | Parker | 1 | 0 | 0 | — |
| Powell, Helen G-8-80357 | Albert, David Oil & Gas only | Toto (Caddo Conglomerate) | Parker | 1 | 0 | 0 | — |
| Powell G-8-117649 | Albert, David Oil & Gas only | Toto (Caddo Conglomerate) | Parker | 1 | 0 | 0 | — |
| Linehan, E. -A- G-8-32254 | Borderline Operating Corp. only | Toto (Caddo Conglomerate) | Parker | 1 | 0 | 14.8K | Jan 1993 – Feb 2001 |
| S. E. Peaster G. U. G-8-121499 | Smiley, Jerry only | Toto (Caddo Conglomerate) | Parker | 1 | 0 | 2.14K | Jan 1993 – Apr 1993 |
| Brawley Unit G-8-123318 | RKW Operating LLC only | Toto (Caddo Conglomerate) | Parker | 1 | 0 | 30.2K | Jan 2004 – Sep 2024 |
| Mitchell, Donovan -C- G-8-73016 | Patton Exploration, Inc. only | Toto (Caddo Conglomerate) | Parker | 1 | 0 | 17K | Jan 1993 – May 2021 |
| Mitchell, Donovan -B- G-8-73015 | Patton Exploration, Inc. only | Toto (Caddo Conglomerate) | Parker | 1 | 0 | 55.4K | Jan 1993 – Oct 2019 |
| Ashbrook G-8-292771 | FX Energy Operating, LLC only | Toto (Caddo Conglomerate) | Parker | 1 | 0 | 1.79K | Oct 2021 – Nov 2023 |
| Prather G-8-71580 | MKS Natural Gas Company only | Toto (Caddo Conglomerate) | Parker | 1 | 0 | 9.64K | Jan 1993 – Nov 2005 |
| Wilkins G-8-139849 | Tarpon Oil Company only | Toto (Caddo Conglomerate) | Wise | 1 | 0 | 0 | — |
| Cavness G-8-147125 | MKS Natural Gas Company only | Toto (Caddo Conglomerate) | Parker | 1 | 0 | 59.8K | Aug 1994 – Jun 2014 |
| Chilcutt R.S. G-8-69722 | Arrowhead Productions, LP only | Toto (Caddo Conglomerate) | Parker | 1 | 0 | 434 | Jan 1993 – Jan 2004 |
| FHM G-8-172425 | MKS Natural Gas Company only | Toto (Caddo Conglomerate) | Parker | 1 | 0 | 2.03K | Oct 1998 – May 2005 |