| Mosley O-13-31557 | Eleon Operators, LLC only | St. JO Ridge (Barnett Shale) | Montague | 1 | 420K | 1.56M | Jul 2009 – Aug 2026 |
| University -29- O-10-17208 | Oilwell Operators, Inc. only | Fullerton | Andrews | 3 | 275K | 279K | by Jan 1993 – Aug 2026 |
| Merchant Operators Fee G-3-138156 | Quail Creek Oil Corporation only | Merchant (Consolidated) | Liberty | 1 | 274K | 472K | by Jan 1993 – Aug 2026 |
| Short O-14-258 | Oilwell Operators, Inc. only | Panhandle Gray County Field | Gray | 7 | 173K | 373K | by Jan 1993 – Aug 2026 |
| Taylor, W. H. "GO" O-14-4611 | Oilwell Operators, Inc. only | Panhandle Gray County Field | Gray | 3 | 171K | 101K | by Jan 1993 – Aug 2026 |
| McLaughlin O-14-3771 | Oilwell Operators, Inc. only | Panhandle (Red Cave) | Moore | 16 | 167K | 108K | by Jan 1993 – Aug 2026 |
| Sorrell "C" O-9-16295 | Production Operators of TX, LLC only | Speck, SE. (King) | Concho | 4 | 166K | 3.19K | May 2007 – Aug 2026 |
| Karen -A- O-14-1677 | Oilwell Operators, Inc. only | Panhandle Gray County Field | Gray | 3 | 160K | 6.75K | by Jan 1993 – Apr 2026 |
| Mosley D O-13-33039 | Eleon Operators, LLC only | Newark, East (Barnett Shale) | Montague | 1 | 155K | 277K | Jan 2014 – Aug 2026 |
| Mosley North O-13-32593 | Eleon Operators, LLC only | Newark, East (Barnett Shale) | Montague | 3 | 140K | 249K | May 2012 – May 2023 |
| Taylor Ranch (HJC) O-14-5197 | Oilwell Operators, Inc. only | Panhandle Gray County Field | Gray | 2 | 136K | 91.8K | by Jan 1993 – Aug 2026 |
| Mitchell, J. M. O-3-2718 | Oily Dog Operators Texas, LLC only | Liberty, South | Liberty | 26 | 128K | 27.3K | by Jan 1993 – Apr 2022 |
| Grant O-13-30890 | Eleon Operators, LLC only | St. JO Ridge (Barnett Shale) | Montague | 1 | 100K | 567K | Oct 2007 – Aug 2026 |
| Hodges O-14-863 | Oilwell Operators, Inc. only | Panhandle Hutchinson County Fld. | Hutchinson | 13 | 97.2K | 556K | by Jan 1993 – May 2025 |
| Logan-Dunigan O-14-1160 | Oilwell Operators, Inc. only | Panhandle Hutchinson County Fld. | Hutchinson | 16 | 95K | 289K | by Jan 1993 – Mar 2026 |
| Adams-Prather A O-13-32592 | Eleon Operators, LLC only | Newark, East (Barnett Shale) | Montague | 1 | 94.5K | 67.1K | Sep 2012 – Aug 2026 |
| Cockrell-Gulf O-14-1314 | Oilwell Operators, Inc. only | Panhandle Hutchinson County Fld. | Hutchinson | 16 | 93.2K | 210K | by Jan 1993 – Nov 2025 |
| Scott, John R. O-9-791 | Darco Operators only | John Scott (Grayburg) | Reagan | 6 | 91.5K | 233 | by Jan 1993 – Aug 2026 |
| Spiers O-8-30574 | Production Operators of TX, LLC only | Adas (Canyon Reef) | Fisher | 1 | 87.6K | 81.9K | Aug 2010 – Aug 2026 |
| Bunger/Sorrell Unit O-9-16453 | Production Operators of TX, LLC only | Speck, SE. (King) | Concho | 1 | 78K | 1.67K | Feb 2008 – Aug 2026 |
| Davis, Wirt, Estate O-3-5374 | Oily Dog Operators Texas, LLC only | Liberty, South | Liberty | 1 | 75.6K | 80 | by Jan 1993 – Feb 2008 |
| Mathews A O-13-32174 | Eleon Operators, LLC only | Newark, East (Barnett Shale) | Montague | 1 | 73.1K | 393K | Jan 2011 – Aug 2026 |
| Apollo Lease O-7-8764 | Oily Dog Operators Texas, LLC only | East Texas | Rusk | 21 | 70.9K | 0 | Nov 2014 – Dec 2024 |
| Scott Ranch #1 O-13-30928 | Eleon Operators, LLC only | St. JO Ridge (Barnett Shale) | Montague | 1 | 70.5K | 301K | Dec 2007 – Aug 2026 |
| Scaling O-13-31473 | Eleon Operators, LLC only | St. JO Ridge (Barnett Shale) | Clay | 1 | 69.9K | 2.37M | May 2009 – Aug 2026 |
| Barrett O-14-253 | Oilwell Operators, Inc. only | Panhandle Gray County Field | Gray | 4 | 68.8K | 310K | by Jan 1993 – Aug 2026 |
| Mosley C O-13-32874 | Eleon Operators, LLC only | Newark, East (Barnett Shale) | Montague | 2 | 68.5K | 181K | May 2013 – Feb 2018 |
| Petit O-8-31345 | Production Operators of TX, LLC only | Noodle, NW. (Canyon Sd. 4000) | Jones | 2 | 67K | 124K | Nov 2013 – Aug 2026 |
| Hughey O-14-7034 | Crude Operators, L.L.C. only | Panhandle Gray County Field | Gray | 27 | 65.5K | 252K | Sep 1994 – Aug 2026 |
| Taylor, W. H. -A- O-14-621 | Oilwell Operators, Inc. only | Panhandle Gray County Field | Gray | 11 | 59.9K | 321K | by Jan 1993 – Aug 2026 |
| Wasson O-6-1477 | Oil Patch Operators Co., L.L.C. only | Rodessa (Dees Young) | Cass | 1 | 59.4K | 2.55K | by Jan 1993 – Jul 2026 |
| Elder, J. S. -A- O-7-8236 | Oily Dog Operators Texas, LLC only | East Texas | Gregg | 11 | 57.1K | 1.73K | by Jan 1993 – Oct 2023 |
| Byrd Ranch O-1-15482 | 1776 Energy Operators, LLC only | Eagleville (Eagle Ford-1) | Zavala | 1 | 56.6K | 30K | Aug 2011 – Jul 2025 |
| Guitar Earl B. O-8-13067 | Production Operators of TX, LLC only | Miracle (Tannehill) | Taylor | 8 | 56.1K | 19 | by Jan 1993 – Aug 2026 |
| Christian, W. S., Etal O-14-789 | Oilwell Operators, Inc. only | Panhandle Hutchinson County Fld. | Hutchinson | 6 | 55.5K | 82.5K | by Jan 1993 – Aug 2026 |
| Scott O-13-30849 | Eleon Operators, LLC only | St. JO Ridge (Barnett Shale) | Montague | 1 | 53.2K | 207K | May 2007 – Aug 2026 |
| Welder, J. F., Hrs. -E- O-4-2816 | Stonegate Operators, Inc. only | Seven Sisters | Duval | 2 | 51.5K | 142 | by Jan 1993 – Sep 2009 |
| Langham O-14-5423 | Oilwell Operators, Inc. only | Panhandle Gray County Field | Gray | 5 | 46.6K | 572K | by Jan 1993 – Aug 2026 |
| Marrs McLean O-3-21766 | Oily Dog Operators Texas, LLC only | Liberty, South | Liberty | 2 | 43.2K | 86 | by Jan 1993 – Nov 2017 |
| Shearer -B- O-10-5863 | O & O Operators, LLC. only | Shearer | Pecos | 23 | 43.2K | 55 | by Jan 1993 – Apr 2016 |
| Kec Exploration et Al O-3-21085 | Oily Dog Operators Texas, LLC only | Segno (Yegua 5000) | Polk | 2 | 41.5K | 21 | by Jan 1993 – Sep 2014 |
| HBL Unit O-14-7032 | Crude Operators, L.L.C. only | Panhandle Gray County Field | Gray | 22 | 40.7K | 24.1K | Sep 1994 – Aug 2026 |
| Duke, W. L. O-8-19867 | Production Operators of TX, LLC only | Dixon-Lawlis (Canyon) | Fisher | 2 | 40.5K | 19.8K | Apr 1994 – Aug 2026 |
| Thomas-Mosley O-13-31332 | Eleon Operators, LLC only | St. JO Ridge (Barnett Shale) | Montague | 1 | 39.8K | 239K | Sep 2008 – Nov 2025 |
| Gray O-14-2920 | Oilwell Operators, Inc. only | Panhandle Gray County Field | Gray | 19 | 39.5K | 1.17M | by Jan 1993 – Aug 2026 |
| Lee Smith O-8-31523 | Production Operators of TX, LLC only | Noodle, NW. (Canyon Sd. 4000) | Jones | 1 | 38.7K | 52.1K | Jun 2014 – Aug 2026 |
| Taylor, W. H. "L" O-14-4487 | Oilwell Operators, Inc. only | Panhandle Gray County Field | Gray | 2 | 37.6K | 65.1K | by Jan 1993 – Aug 2026 |
| Cam Unit O-8-30872 | Production Operators of TX, LLC only | Eskota, North (Canyon Reef) | Fisher | 2 | 37.5K | 32.5K | Oct 2011 – Aug 2026 |
| Mitchell, J. Estate O-3-17238 | Oily Dog Operators Texas, LLC only | Liberty, South | Liberty | 3 | 37.1K | 26.1K | by Jan 1993 – Apr 2022 |
| Ogle Plaxco B O-13-32588 | Eleon Operators, LLC only | Newark, East (Barnett Shale) | Clay | 1 | 37K | 873K | Oct 2011 – Aug 2026 |