| Lake Ferrell Unit O-6-4504 | Rose City Resources, LLC only | Lake Ferrell (Pettit, Upper) | Marion | 49 | 1.6M | 2.19K | by Jan 1993 – Aug 2026 |
| Morris O-6-15728 | Rose City Resources, LLC only | Lake Ferrell (Pettit, Upper) | Marion | 1 | 243K | 200K | Aug 2019 – Aug 2026 |
| Nadine O-6-15851 | Rose City Resources, LLC only | Lake Ferrell (Pettit, Upper) | Marion | 1 | 233K | 63.5K | Aug 2021 – Aug 2026 |
| Thompson O-6-15551 | Rose City Resources, LLC only | Lake Ferrell (Pettit, Upper) | Marion | 2 | 198K | 47.7K | Dec 2016 – Aug 2026 |
| Carmichael O-6-15552 | Rose City Resources, LLC only | Lake Ferrell (Pettit, Upper) | Marion | 1 | 168K | 0 | Dec 2016 – Aug 2026 |
| Taylor Unit O-6-12732 | Rose City Resources, LLC only | Lake Ferrell (Travis Peak) | Marion | 1 | 153K | 68 | by Jan 1993 – Aug 2026 |
| Mitchell "J" O-6-13347 | Buffco Production Inc. only | Lassater (Travis Peak) | Marion | 1 | 140K | 10.9K | Nov 1994 – Aug 2026 |
| Treadwell O-6-15652 | Rose City Resources, LLC only | Lake Ferrell (Pettit, Upper) | Marion | 1 | 139K | 4.58K | Oct 2018 – Aug 2026 |
| Bell O-6-15567 | Rose City Resources, LLC only | Lake Ferrell (Pettit, Upper) | Marion | 1 | 135K | 19K | Nov 2017 – Aug 2026 |
| Wendell Brevard O-6-15709 | Enerquest Corporation only | Whelan (Travis Peak Prorated) | Marion | 1 | 50.8K | 68.3K | Sep 2019 – Jul 2026 |
| Colley Unit O-6-4737 | McKnight, C. L. only | Haynes (Mitchell) | Cass | 2 | 36.4K | 1.96K | by Jan 1993 – Jan 2019 |
| Kildare /West Gloyd/ Unit O-6-4641 | Ridgeling Well Salvage only | Kildare | Marion | 19 | 32.9K | 2.39K | by Jan 1993 – Feb 2000 |
| Waldrop 'A' O-6-15442 | Buffco Production Inc. only | Lake Ferrell (Pettit, Upper) | Marion | 2 | 26.3K | 341 | Dec 2012 – Jul 2025 |
| Snider Industries O-6-14974 | Machin & Associates, Inc. only | Kellyville (Hill Lime) | Marion | 1 | 24.7K | 0 | Jun 2010 – Jan 2024 |
| Graham Unit O-6-12892 | Rose City Resources, LLC only | Lake Ferrell (Travis Peak) | Marion | 1 | 19.5K | 68 | by Jan 1993 – Jul 2016 |
| Key, Eagle Dolly Bell O-6-10288 | Sklar Exploration Company LLC only | Woodlawn | Marion | 1 | 14.9K | 118 | by Jan 1993 – Sep 2011 |
| Big Cypress O-6-12127 | Linder, John G. Jr. only | Kellyville (Hill Lime) | Marion | 1 | 13.3K | 56 | by Jan 1993 – Aug 1998 |
| Chevron Fee O-6-12239 | Oiltec, LP only | Kellyville (Hill Lime) | Marion | 2 | 13.3K | 11.8K | by Jan 1993 – Mar 2010 |
| Harrell O-6-5305 | Triple L Operating Company LLC only | Marion County (Shallow) | Marion | 10 | 11.1K | 20 | by Jan 1993 – Jun 2017 |
| Cartwright, L. (Cartwright Unit) O-6-13918 | Mitchell Energy Corporation only | Lassater (Travis Peak, Gas) | Marion | 1 | 9.83K | 105K | Dec 1998 – Apr 1999 |
| Rowell O-6-15134 | Machin & Associates, Inc. only | Nita (Neugent) | Marion | 1 | 6.62K | 0 | Feb 2012 – Mar 2020 |
| Kelsey, Annie D, Gas Unit G-6-162748 | Mitchell Energy Company L.P. only | Lassater (Cotton Valley) | Marion | 1 | 6.26K | 72.1K | Oct 1996 – Apr 1999 |
| Whelan O-6-12189 | Bachtell, Charles Ray only | Rodessa (Pettit Upper) | Marion | 1 | 4.03K | 47.1K | by Jan 1993 – Oct 2001 |
| Keahey Gas Unit G-6-263831 | Bachtell Oil & Gas, Ltd. only | Rodessa (Cotton Valley Cons.) | Marion | 1 | 3.7K | 72.3K | May 2011 – Jun 2012 |
| Seagal, Issie O-6-12811 | Vintage Petroleum, Inc. only | Lake Ferrell (Travis Peak) | Marion | 2 | 2.87K | 17 | by Jan 1993 – May 1994 |
| Leonard, Obie O-6-12462 | Linop Corporation only | Kellyville (Hill Lime) | Marion | 1 | 2.6K | 410 | by Jan 1993 – Jan 2002 |
| Mitchell "J" G-6-107124 | Marathon Oil Company only | Lassater (Travis Peak, Gas) | Marion | 1 | 2.33K | 154K | by Jan 1993 – Oct 1994 |
| Rochester G-6-278870 | Howell Oil & Gas, Inc. only | Rodessa (Jefferson-Dujie) | Marion | 1 | 2.02K | 113K | May 2014 – Dec 2018 |
| Thorsell, L. D. G-6-103462 | Buffco Production Inc. only | Lassater (Cotton Valley) | Marion | 1 | 1.95K | 388K | by Jan 1993 – Jun 2020 |
| Cartwright, L. (Cartwright Unit) G-6-170588 | Mitchell Energy Corporation only | Lassater (Travis Peak, Gas) | Marion | 1 | 1.79K | 34.9K | Sep 1998 – Nov 1998 |
| King, Kirk O-6-13569 | Mitchell Energy Company L.P. only | Lassater (Travis Peak, Gas) | Marion | 2 | 1.55K | 40.1K | Nov 1995 – May 1996 |
| Thorsell GU G-6-199194 | Rose City Resources, LLC only | Lassater (Cotton Valley) | Marion | 1 | 1.28K | 410K | Aug 2003 – May 2019 |
| Neches Iron Co. "C" G-6-77199 | Mitchell Energy Corporation only | Lassater (Travis Peak, Gas) | Marion | 1 | 0 | 51.5K | by Jan 1993 – Aug 1996 |
| Badgett, J. D. Estate G-6-46325 | Bachtell, Charles Ray only | Rodessa (Travis Peak) | Marion | 1 | 0 | 0 | — |
| Eidson Unit O-6-12656 | Burk Royalty Company only | Lake Ferrell (Travis Peak) | Marion | 1 | 0 | 0 | — |
| Haynes /Mitchell/ Unit O-6-4540 | Beacon Petroleum Corporation only | Haynes (Mitchell) | Cass | 64 | 0 | 0 | — |
| Marion-Cass Dev. Co. O-6-13638 | Mitchell Energy Corporation only | Wildcat | Marion | 1 | 0 | 0 | — |
| Harrell, "E" O-6-13754 | Ultrex Oil Co., L.L.C. only | Marion County (Shallow) | Marion | 1 | 0 | 0 | — |
| Harrell "D" O-6-13755 | Ultrex Oil Co., L.L.C. only | Marion County (Shallow) | Marion | 1 | 0 | 0 | — |
| Harrell "C" O-6-13756 | Ultrex Oil Co., L.L.C. only | Marion County (Shallow) | Marion | 1 | 0 | 0 | — |
| Harrell "B" O-6-13757 | Ultrex Oil Co., L.L.C. only | Marion County (Shallow) | Marion | 1 | 0 | 0 | — |
| Harrell "A" O-6-13758 | Ultrex Oil Co., L.L.C. only | Marion County (Shallow) | Marion | 1 | 0 | 0 | — |
| Kildare East Gloyd Unit O-6-13990 | Ridgeling Well Salvage only | Kildare | Cass | 19 | 0 | 0 | — |
| Keahey Gas Unit G-6-260499 | Bachtell Oil & Gas, Ltd. only | Wildcat | Marion | 1 | 0 | 0 | — |
| Lake Ferrell Unit O-6-15415 | Rose City Resources, LLC only | Lake Ferrell (Travis Peak) | Marion | 1 | 0 | 0 | — |
| Whelan G-6-161353 | Bachtell, Charles Ray only | Rodessa (Travis Peak) | Marion | 1 | 0 | 310 | Dec 1996 – Aug 1997 |
| Kelsey, Annie D. Gas Unit G-6-154892 | Mitchell Energy Corporation only | Lassater (Cotton Valley) | Marion | 1 | 0 | 21.4K | May 1995 – Jul 1995 |
| Rowell, T. D. Jr O-6-5225 | Gaines Operating, LLC only | Marion County (Shallow) | Marion | 1 | 0 | 0 | — |