| Columbus Field Unit O-3-24040 | Rusk Energy Operating LLC | Columbus (Consolidated) | 38 | 1.1M | 3.8M | Feb 2001 – Jul 2026 |
| Columbus Field Unit O-3-784 | Devon Energy Operating Co., L.P. | Columbus | 33 | 571K | 834K | Jan 1993 – May 2002 |
| Plow Realty O-3-19990 | Acock/Anaqua Operating Co., LP | Golden Plow (Yegua 250) | 3 | 520K | 2.99M | Jan 1993 – Jul 2020 |
| Columbus Field Unit O-3-785 | Devon Energy Operating Co., L.P. | Columbus (11-A) | 10 | 351K | 474K | Jan 1993 – Jul 2002 |
| Sheridan, H. D. O-3-21004 | Sue-Ann Operating, L.C. | Eagle Lake, W. (8650) | 2 | 328K | 198K | Jan 1993 – Jul 2026 |
| Heinsohn A O-3-12655 | 84 Energy LLC | Dubina, South (9080) | 1 | 269K | 677K | Jan 1993 – Jul 2026 |
| White -S- O-3-11536 | 84 Energy LLC | Dubina, South (9080) | 1 | 251K | 574K | Jan 1993 – Jul 2026 |
| Hobizal O-3-14526 | Gemarmi Inc. | Hamel, South (8690) | 1 | 228K | 129K | Jan 1993 – Jul 2026 |
| McDermott, C. W. O-3-20827 | Mountain V Texas, LLC | Nada, E. (Ammann 6500) | 2 | 194K | 92.7K | Jan 1993 – Jul 2026 |
| Sheridan Oil Unit O-3-25142 | Sue-Ann Operating, L.C. | Mohat, West (8790) | 1 | 172K | 24.3K | Jun 2007 – Jul 2026 |
| Dowell,m.e. O-3-12756 | B D Production Co., Inc. | Garwood, NW (5630) | 6 | 164K | 286K | Jan 1993 – Jul 2026 |
| Leona Unit No. 2 O-3-23234 | Cox & Perkins Exploration, Inc. | Gracey Ranch (Yegua 6850) | 1 | 152K | 1.11M | Dec 1996 – Aug 2003 |
| Frensley O-3-24984 | Jamex, Inc. | Zimmerscheidt (Wilcox) | 1 | 127K | 90.7K | Feb 2005 – Jul 2026 |
| Cullen, H.R. et AL O-3-12032 | Hilcorp Energy Company | Columbus (7050) | 2 | 116K | 219K | Jan 1993 – Dec 2001 |
| Sheridan O-3-17590 | Hoc Operating Co., Inc. | Mohat, West (8790) | 2 | 113K | 89.2K | Jan 1993 – Jun 1999 |
| Sheridan, H. D. No. 1 O-3-23666 | Sue-Ann Operating, L.C. | Mohat, West (9700) | 1 | 107K | 61.6K | Apr 1999 – Sep 2018 |
| Dowell, M.E. "A" O-3-18920 | B D Production Co., Inc. | Garwood, NW (5630) | 1 | 100K | 218K | Jan 1993 – Feb 2018 |
| Adkins O-3-23761 | Sue-Ann Operating, L.C. | Matthews, SE (Yegua 6900) | 1 | 98.4K | 570K | Dec 1999 – Jan 2011 |
| Columbus Field Unit O-3-23072 | Devon Energy Operating Co., L.P. | Columbus ( 6-E) | 3 | 97.8K | 120K | Jul 1996 – May 2002 |
| Gold, Clarine O-3-23159 | Viper S.W.D., LLC | Garwood, S.E. (Y-2) | 1 | 95.8K | 212K | Nov 1996 – Jul 2026 |
| Boeker, Arthur M. O-3-19792 | Gemarmi Inc. | Hamel, South (8700) | 1 | 93.6K | 55.5K | Jan 1993 – Jul 2026 |
| Cullen, H.R. et AL O-3-24058 | Strand Energy, L.C. | Columbus (Consolidated) | 5 | 92.5K | 335K | Sep 2001 – Jul 2026 |
| Grodhaus O-3-18685 | Sellers Lease Service, Inc. | Rutledge (Wilcox 6500) | 1 | 81.8K | 144 | Jan 1993 – Jul 2026 |
| M Plus Land O-3-23270 | Cox & Perkins Exploration, Inc. | Gracey Ranch (Yegua 6850) | 2 | 78.6K | 167K | Apr 1997 – Apr 1999 |
| Lehrer O-3-18948 | Aries Operating, LP | Mustang Creek (Wilcox Sand) | 1 | 77.6K | 659 | Jan 1993 – Apr 2022 |
| Johnson, B.A. O-3-19798 | Zone Ridge Operating, LLC | Sublime (7360) | 1 | 71.8K | 193K | Jan 1993 – Jul 2026 |
| Selma Boeker Taylor O-3-25276 | Gemarmi Inc. | Hamel, South (8690) | 1 | 68.6K | 11.4K | Oct 2008 – Jul 2026 |
| Cochran O-3-20728 | Finley Resources, Inc. | Garwood, NW. (Wilcox A-3) | 2 | 64.6K | 880K | Jan 1993 – Jul 2026 |
| Glasscock, C. G. O-3-23107 | Proline Energy Resources Inc | Glasscock (Wilcox 9,400) | 2 | 62.9K | 151K | Jun 1996 – Jul 2026 |
| Sandell O-3-22789 | Prime Operating Company | Hamel | 1 | 62.7K | 842K | Jul 1995 – Apr 2020 |
| Plow Realty O-3-25207 | Acock/Anaqua Operating Co., LP | Sheridan (Yegua) | 1 | 62.5K | 21.5K | Jul 2008 – Jul 2020 |
| Griffith "A" O-3-18838 | Walter Exploration Inc. | Stuart Creek (10200 Wilcox) | 1 | 59.3K | 1.2M | Jan 1993 – Jan 2001 |
| Rau-Allen O-3-23581 | Shana Petroleum Company | Provident City, NE. (Buck Snag) | 1 | 58.6K | 195K | Aug 1998 – Feb 2001 |
| Koehn "C" O-3-15080 | Basa Resources, Inc. | Dubina, South (9080) | 1 | 56K | 107K | Jan 1993 – Oct 2012 |
| Grodhaus O-3-22666 | Camoil, Inc. | Antlers (Yegua 4700) | 1 | 50.6K | 26.7K | Feb 1995 – Mar 2017 |
| Sheridan Gas Unit O-3-25225 | Remora Management, LLC | Sheridan (Wilcox Consolidated) | 3 | 50.1K | 18.4K | Sep 2008 – Jul 2026 |
| Cochran Unit O-3-26851 | Jamex, Inc. | Zimmerscheidt (Wilcox) | 1 | 49.5K | 31.8K | Sep 2014 – Jul 2026 |
| Eugene Oncken Gas Unit O-3-26819 | Sundown Energy LP | New Bielau (Wilcox 8700) | 1 | 48.1K | 31.4K | Feb 2015 – Nov 2021 |
| Blake O-3-27615 | Square Mile Energy, L.L.C. | Sheridan (Yegua 5000) | 1 | 47.7K | 83 | Aug 2019 – Jan 2026 |
| Kollman Heirs O-3-25639 | Strand Energy, L.C. | Columbus (Consolidated) | 1 | 45.5K | 1.05M | May 2010 – Jul 2026 |
| Barnes, Perry V. O-3-24591 | Galloway Energy Co. | Columbus, West (Wilcox 10-A) | 1 | 43.8K | 2.19K | Aug 2004 – Jul 2026 |
| Leyendecker O-3-27155 | Jamex, Inc. | Zimmerscheidt (Wilcox) | 1 | 42.8K | 28K | Sep 2016 – Jul 2026 |
| Taylor, Selma O-3-23068 | Gemarmi Inc. | Hamel, South (8990) | 1 | 42K | 418K | Sep 1996 – Jul 2026 |
| Sheridan, H. D. O-3-22947 | Hoc Operating Co., Inc. | Eagle Lake, W. (8750) | 1 | 41.3K | 46.7K | Mar 1996 – Dec 1998 |
| Kalina O-3-24580 | Samson Lone Star, LLC | Kainer (Yegua 6450) | 1 | 40K | 81.2K | Sep 2003 – Dec 2011 |
| Rancho Cullen Unit O-3-26896 | Magnum Producing, LP | Lomita (Wilcox 8200 Sd.) | 1 | 38.3K | 118K | Jun 2015 – Sep 2018 |
| Isam Brisco O-3-26728 | Remora Management, LLC | Sheridan (Yegua) | 1 | 38.3K | 568K | May 2014 – Jul 2026 |
| Moebes, Leona K. O-3-10774 | Mosaic Oil LLC | Columbus (6-B Wilcox) | 1 | 33.3K | 43.5K | Jan 1993 – Jul 2026 |
| Sheridan Gas Unit O-3-13526 | XTO Energy Inc. | Sheridan (Wilcox) | 3 | 32.8K | 155K | Jan 1993 – Dec 2008 |
| Campbell O-3-24228 | Neuhaus, V. F. Properties, Inc. | Chesterville, N. (Ckfld. 6000) | 1 | 31.8K | 0 | Jun 2002 – Dec 2022 |