| Dincans, A. T. Jr. G-2-175969 | Blue Wing Energy, Inc. | Toro Grande (9000 SD) | 1 | 28.5K | 1.59M | Nov 1999 – Jan 2002 |
| Faust O-2-7947 | Continental Operating Co. | Cordele (M-2) | 1 | 28.5K | 5.29K | Mar 1994 – Mar 2003 |
| I. T. Taylor, et. Al. G-2-238236 | Atlas Operating LLC | Toro Grande (7800 Yegua) | 1 | 28.2K | 638K | Jun 2008 – Jan 2023 |
| West Ranch State Oil & Gas UNIT1 O-2-10440 | Hilcorp Energy Company | West Ranch, S. (Frio 7200) | 1 | 27.7K | 51.5K | Sep 2012 – Feb 2021 |
| Wiese-Powers O-2-11640 | Angel Operating LLC | Ganado, West (4700 Zone) | 1 | 27.5K | 24.5K | Jun 2018 – Jun 2019 |
| Mauritz Unit #8 O-2-469 | Stone, J. G. Oil Co. | Francitas, North | 1 | 27.5K | 9.86K | by Jan 1993 – Jun 2018 |
| Ten Cate O-2-10303 | McGowan Working Partners, Inc. | Lolita (Mopac Sand) | 1 | 27.4K | 47.3K | May 2012 – Jun 2015 |
| Toney, Mrs. M.H. O-2-9516 | Hilcorp Energy Company | West Ranch (Frio 6380) | 1 | 27.2K | 41.5K | Oct 2010 – Jan 2015 |
| West Ranch -A- O-2-4052 | Hilcorp Energy Company | West Ranch (Mitchell) | 12 | 26.9K | 45.6K | by Jan 1993 – Jan 2011 |
| Hess, et Al O-2-6562 | Petro Vest, Inc. | Mayo (5758) | 1 | 26.9K | 18 | Feb 1993 – Feb 2005 |
| Cravens, J. R. O-2-11417 | Allegiant Resources, LLC | Ganado, West (6000) | 1 | 26.3K | 64.4K | Aug 2017 – Jun 2021 |
| Anders Gas Unit G-2-144883 | Scana Petroleum Resources, Inc. | El Torito (Yegua 9030) | 1 | 26.2K | 2.04M | by Jan 1993 – Oct 1995 |
| Turner OU #1 O-2-8190 | Engelke, R. H. | West Ranch (Frio 6840) | 1 | 26K | 36.6K | Jun 1996 – Dec 1998 |
| Rose-Sample O-2-12353 | Stone Edge Energy, LLC | Cordele (M-3) | 1 | 26K | 5 | Mar 2022 – Aug 2026 |
| Hultquist, M. O-2-8821 | KD Energy, LLC | Ganado (Marg. 2, South) | 1 | 25.6K | 52.6K | Sep 2003 – Dec 2014 |
| Vance-Glaze Unit G-2-162747 | Pure Resources, L.P. | Toro Grande, N.E. (9300 Sd.) | 1 | 25.3K | 665K | Nov 1996 – Jan 2001 |
| Scherer, L. P. G-2-181333 | Pure Resources, L.P. | El Toro Max, W. (EY-1) | 1 | 25.1K | 220K | May 2000 – Mar 2002 |
| Weber-Mauritz O-2-12297 | Cyber Enviro-Tech Inc | Stewart | 1 | 25.1K | 71.7K | Nov 2021 – Jan 2024 |
| Babb, T. J. O-2-8913 | Paloma Operating, LLC | El Toro, SW. (6500) | 1 | 25K | 20.7K | Jul 2003 – Sep 2020 |
| Babb O-2-8346 | Brayton Operating Corp. | Inez (Yegua 9060) | 1 | 24.9K | 39.9K | Jan 1998 – Apr 1998 |
| Toney, M. H., Mrs. G-2-151005 | Vintage Petroleum, Inc. | West Ranch (Lavaca) | 1 | 24.3K | 573K | Aug 1994 – Feb 1997 |
| Allen, J. H. -E- O-2-873 | McGowan Working Partners, Inc. | Lolita (Marginulina Zone) | 3 | 24.3K | 8.7K | by Jan 1993 – Aug 2011 |
| Brooking, G. T. G-2-240758 | Britnic Oil & Gas, Inc. | Swan Lake (7100) | 1 | 24.3K | 113K | May 2008 – Jul 2023 |
| Layden-Yendrey Gas Unit G-2-188473 | Sue-Ann Operating, L.C. | Big 12 (11,900) | 1 | 24.2K | 763K | Nov 2001 – Jul 2016 |
| Silliman, L. A. O-2-4369 | Sue-Ann Operating, L.C. | Ganado (F- 3-E) | 2 | 24K | 70.1K | by Jan 1993 – Jan 1997 |
| Labay/Glo GU #2 G-2-150406 | Fredco | Jack Starr (Yegua Y-4) | 1 | 23.7K | 2.71M | Jul 1994 – Nov 2005 |
| Simons-Hafernick Unit O-2-10778 | Magnum Producing, LP | Westhoff (Combined Associated) | 1 | 23.4K | 97.9K | Feb 2014 – May 2017 |
| Westhoff, A. E. G-2-203592 | Projj Energy LLC | Westhoff (Combined Associated) | 1 | 23.4K | 541K | May 2004 – Nov 2021 |
| Rose G-2-296207 | Forza Operating, LLC | Lonken (7030) | 1 | 23.3K | 1.96M | Jan 2024 – Aug 2026 |
| Westhoff, A. E. G-2-200918 | Projj Energy LLC | Westhoff (Combined Associated) | 1 | 23.2K | 314K | Jan 2004 – Nov 2021 |
| Cravens, J. R. O-2-12244 | Allegiant Resources, LLC | Ganado, West (5630) | 1 | 23.1K | 30K | Nov 2021 – Jan 2023 |
| Westhoff, W. T. O-2-8227 | Ffa Petroleum Services, Inc. | Texana, North (Frio 6090) | 1 | 23K | 57K | Dec 1996 – May 2002 |
| Dolesh, F. L. O-2-516 | Starco Exploration, Inc. | Ganado, West | 1 | 23K | 21 | by Jan 1993 – May 2006 |
| Mauritz, Fred Trust Estate O-2-6804 | Fredco | Mauritz (6245) | 1 | 22.8K | 2.09K | by Jan 1993 – Feb 2008 |
| Four-Way Ranch O-2-5046 | McGowan Working Partners, Inc. | Lolita, Deep (7900 Zone) | 3 | 22.6K | 46.1K | Aug 2000 – Nov 2010 |
| Babb, T. J. O-2-6915 | Bison Energy Partners, Inc. | El Toro, SW. (6500) | 1 | 22.5K | 33.8K | by Jan 1993 – Jul 2001 |
| West Ranch "A" O-2-7446 | Hilcorp Energy Company | West Ranch (Randle) | 2 | 22.3K | 22.4K | by Jan 1993 – Aug 2015 |
| Kramer-Glaser O-2-8383 | Ffa Petroleum Services, Inc. | Little Kentucky (Frio 5800) | 1 | 22.1K | 5.2K | Jun 1998 – Mar 2004 |
| Labay/Glo GU #1 G-2-147094 | Fredco | Jack Starr (Yegua Y-4) | 1 | 22.1K | 2.7M | Oct 1993 – Oct 2005 |
| Menefee O-2-8449 | Sequoia Fossil Fuels, Inc. | Texana, N. (Frio 6800) | 1 | 21.9K | 216K | May 1999 – Apr 2003 |
| Strickler O-2-10953 | Zeppe Petroleum, LLC | Stewart | 2 | 21.9K | 0 | Dec 2014 – Jan 2021 |
| Kuretsch, Raymond O-2-8428 | Whittington Operating Company | Ganado, West (5500 Duke -A-) | 1 | 21.8K | 0 | Feb 1999 – May 2000 |
| Thedford Etal O-2-6754 | White Stride LLC | La Ward, E.(frio, Lower 10500) | 1 | 21.8K | 23 | by Jan 1993 – Aug 2026 |
| Westhoff, A.E O-2-8246 | Encon Services, Inc. | Westhoff Ranch (B-15) | 1 | 21.8K | 37.5K | Mar 1997 – Nov 2004 |
| Germer-Sample O-2-8317 | Cox & Perkins Exploration, Inc. | Bright Falcon (Yegua 9580) | 1 | 21.5K | 163K | Jul 1997 – Jan 2003 |
| Perez Unit O-2-6773 | Pegasus Operating, Inc. | Lolita, North (Frio 6390) | 2 | 21.3K | 28 | by Jan 1993 – Sep 2003 |
| Goff, E. G. G-2-144979 | Ffa Petroleum Services | Golden Branch (EY-1) | 1 | 21.3K | 1.6M | Jun 1993 – Nov 1996 |
| Drushel, S. G., -B- O-2-4137 | 911 Claims Corp | Cordele (M-2) | 4 | 21K | 2.82K | by Jan 1993 – Jul 2025 |
| Mo. Pacific Ry. O-2-917 | McGowan Working Partners, Inc. | Lolita (Ward Zone) | 2 | 20.9K | 16.1K | by Jan 1993 – Jun 2008 |
| -L- Ranch Co. -A- O-2-4132 | McGowan Working Partners, Inc. | Lolita (Bennview Zone) | 2 | 20.9K | 5.46K | by Jan 1993 – Jul 2010 |