| Vanderburg O-14-4852 | Pantera Energy Company only | Panhandle Gray County Field | Gray | 5 | 2.92K | 185K | Dec 2004 – Jul 2022 |
| Henderson, M. F. G-10-146749 | Devon Energy Production Co, L.P. only | Waddell (Grayburg) | Crane | 1 | 2.92K | 232K | Sep 1993 – Jan 2010 |
| Guy Ranch G-8-229073 | Grayrock Energy II, LLC only | Edgar Davis (Morris) | Shackelford | 1 | 2.92K | 142K | Jun 2007 – Apr 2020 |
| Isenhower, John D. G-8-143988 | Pendragon Oil Co. only | Dorothy J. (Gray Sand) | Callahan | 1 | 2.9K | 299K | by Jan 1993 – Mar 2019 |
| Yturria, H. G-4-183401 | Cody Energy LLC only | Raymondville (Consolidated) | Willacy | 1 | 2.9K | 503K | May 2001 – Jun 2006 |
| Curtis, J.B. "E" O-8-26713 | Raylee Operating Company only | Palo Pinto County Regular | Palo Pinto | 1 | 2.89K | 115K | by Jan 1993 – Oct 2005 |
| Gray, Nelle -A- O-10-25982 | Saguaro Petroleum, LLC only | Four C (Clear Fork, Middle) | Pecos | 1 | 2.89K | 45.2K | by Jan 1993 – Jul 2026 |
| Murray Bridge O-13-33274 | Gannett Operating LLC only | Young County Regular | Young | 1 | 2.88K | 31K | Oct 2014 – Jul 2026 |
| Hemphill 62 O-8-31463 | Sands Energy LLC only | Mary Opal (Gray Sand) | Coleman | 2 | 2.88K | 29.5K | Mar 2014 – Jun 2017 |
| Gray-Tompkins Unit O-3-605 | Jet Oil Producers, Inc. only | Cedar Bayou, North | Harris | 1 | 2.87K | 88 | by Jan 1993 – Apr 1996 |
| Schirmer, Henry O-2-8281 | Simray Oil & Gas, Inc. only | Bonnie View (5400) | Refugio | 1 | 2.87K | 1.86K | Mar 1997 – Jun 1997 |
| Williamson Unit G-6-232066 | Grayrock Energy II, LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 2.86K | 458K | Sep 2007 – Aug 2026 |
| Kleiner G-8-122421 | Eastland Operating, L.L.C. only | Lee Ray (Lake) | Eastland | 1 | 2.85K | 239K | by Jan 1993 – Aug 2026 |
| Mullins "C" O-8-26906 | Rhyne, J.V. only | Tamco (Gray) | Coleman | 1 | 2.84K | 19.4K | May 1993 – Nov 2007 |
| Jefferies #11 O-8-28409 | Sojourner Drilling Corporation only | Ray Pasture (Swastika) | Jones | 1 | 2.84K | 0 | Jan 1998 – May 2000 |
| Yturria, Frank D. G-4-195271 | EP Energy E&P Company, L.P. only | Raymondville, W (L-70) | Willacy | 1 | 2.83K | 713K | May 2003 – Oct 2009 |
| Hutchings, J. Unit G-6-175463 | Grayrock Energy II, LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 2.82K | 1.41M | Oct 1999 – Aug 2026 |
| Ray 'a' (SA) G-13-269720 | Formentera Operations LLC only | Newark, East (Barnett Shale) | Parker | 1 | 2.82K | 2.27M | Mar 2013 – Aug 2026 |
| Npu ( Ray -1 ) G-2-4545 | Paleo Oil Company LLC only | Tulsita-Wilcox ( Slick) | Bee | 1 | 2.81K | 1.73M | by Jan 1993 – Dec 2015 |
| Saunders -A- O-14-266 | Oilwell Operators, Inc. only | Panhandle Gray County Field | Gray | 5 | 2.81K | 21 | by Jan 1993 – Sep 1995 |
| Ten Gallon Hat Unit 09-02 O-11-70767 | Delray Oil, Inc. only | Sable (San Andres) | Cochran | 1 | 2.81K | 4.63K | May 2018 – Nov 2018 |
| Waggoner Grayback BH O-13-34347 | Waggoner Operating, L.L.C. only | Wilbarger County Regular | Wilbarger | 1 | 2.8K | 0 | Oct 2024 – Aug 2026 |
| White & Baker "C" G-10-186848 | Cimarex Energy Co. only | White & Baker (Grayburg 2000) | Pecos | 1 | 2.79K | 578K | Nov 2001 – Feb 2016 |
| Allen, Jeannie G-6-101748 | Graystone Energy Corporation only | Minden, W. (Travis Peak 7600) | Rusk | 1 | 2.78K | 113K | by Jan 1993 – Jun 2005 |
| Guy Ranch G-8-229374 | Grayrock Energy II, LLC only | Edgar Davis (Morris) | Shackelford | 1 | 2.77K | 190K | Jul 2007 – Apr 2020 |
| Williamson Unit G-6-242563 | Grayrock Energy II, LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 2.77K | 377K | Aug 2008 – Jul 2026 |
| Lavelle O-8-15597 | Arleand Resources only | Lavelle (Gray) | Coleman | 1 | 2.77K | 21 | by Jan 1993 – Jul 2004 |
| Faith O-14-5441 | Large Operating LLC only | Panhandle Gray County Field | Gray | 2 | 2.77K | 207K | Jul 1996 – Jun 2019 |
| Ray G-10-148459 | Burk Royalty Co., Ltd. only | Conger (Penn) | Sterling | 1 | 2.76K | 195K | Dec 1993 – Aug 2026 |
| Yturria, H. G-4-224145 | Apollo Petro Fuels LLC only | Raymondville (Consolidated) | Willacy | 1 | 2.76K | 799K | Dec 2006 – Jul 2020 |
| Vanderburg O-14-4834 | Bce-Mach III LLC only | Panhandle Gray County Field | Gray | 4 | 2.76K | 8.13K | by Jan 1993 – Apr 1995 |
| Murray O-9-13388 | Smith, Joe T., Inc. only | Dark Horse (Goen Lime) | Concho | 1 | 2.75K | 21 | by Jan 1993 – Mar 1995 |
| Briley, Ray O-6-10603 | Oto, Co. only | Talco | Franklin | 4 | 2.75K | 14 | by Jan 1993 – Jul 1994 |
| Axelrod O-14-5102 | Newton Corp.,the only | Panhandle Gray County Field | Gray | 2 | 2.74K | 28.1K | by Jan 1993 – May 2003 |
| Ray, Mary O-10-34503 | Cambrian Management, Ltd. only | Azalea (Strawn) | Midland | 1 | 2.74K | 10.2K | Apr 1995 – Jan 1999 |
| Minor, A. Gas Unit G-6-98597 | Grayrock Energy II, LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 2.73K | 1.1M | by Jan 1993 – Aug 2026 |
| Murray, R.N. & Marek, R.S. O-5-2677 | United Oil & Minerals, Inc. only | Hilltop Resort (Austin Chalk) | Leon | 1 | 2.73K | 18 | by Jan 1993 – Jul 1994 |
| Rayzor Unit G-13-257710 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 2.72K | 2.64M | Sep 2010 – Aug 2026 |
| Murray, Vera M. O-14-3518 | BP America Production Company only | Higgins, West (Tonkawa) | Lipscomb | 3 | 2.72K | 81.3K | by Jan 1993 – Apr 2000 |
| Wilder, Horace O-6-14146 | Graystone Energy Corporation only | Bolton (Travis Peak) | Rusk | 1 | 2.71K | 13.1K | Jan 2002 – Mar 2006 |
| Ray, George G-2-141137 | North Lake Resources LLC only | Pettus, E. (Mackhank) | Goliad | 1 | 2.7K | 127K | by Jan 1993 – Jun 1993 |
| Wilder, Raymond B O-8-18859 | T.D. Energy only | Noodle, N. (Cisco, Lower) | Jones | 1 | 2.69K | 37 | by Jan 1993 – Jan 1996 |
| Fox, J. H. B O-13-2577 | Grayson Petroleum Company only | Woodbine | Cooke | 1 | 2.69K | 18 | Apr 1993 – Mar 2003 |
| Blankenship, Mae O-8-29552 | Grayrock Energy II, LLC only | Bartlett, East | Jones | 1 | 2.69K | 4.37K | Jan 2005 – Oct 2008 |
| Henderson, Monroe G-13-202787 | Ray Herring Estate only | Hoefle (Pool) | Jack | 1 | 2.68K | 39.8K | Jul 2004 – Jun 2014 |
| Morris-Graves O-8-22588 | Rayco Operating, Inc. only | Coleman County Regular | Coleman | 1 | 2.68K | 8.92K | by Jan 1993 – Feb 2000 |
| Williamson Unit G-6-242183 | Grayrock Energy II, LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 2.67K | 647K | Aug 2008 – Aug 2026 |
| Cochran, Raymond O-8-23433 | Chisholm Exploration only | Pescador (Strawn) | Fisher | 2 | 2.67K | 36 | by Jan 1993 – Jan 1996 |
| Dudley Ranch O-9-8420 | Rayco Operating, Inc. only | D-H-B (Palo Pinto) | Runnels | 1 | 2.65K | 21 | by Jan 1993 – Jun 2004 |
| Graf, J. H., NCT-1 G-9-18963 | Rayden only | Jack Herbert (Strawn Penn.) | Upton | 1 | 2.65K | 16.9K | Dec 1993 – Mar 1994 |