| North Rough Draw Unit O-8-10699 | Grayrock Energy II, LLC only | Rough Draw, N. (Noodle Creek) | Kent | 19 | 99.5K | 3.81K | by Jan 1993 – Aug 2026 |
| Murray-McElroy 'a' (Alloc) G-6-281811 | Diversified Production LLC only | Overton (Cotton Valley Sand) | Cherokee | 1 | 99.5K | 3.86M | May 2016 – Aug 2026 |
| Hope O-14-472 | Mon Corp. only | Panhandle Gray County Field | Gray | 5 | 99.4K | 127K | by Jan 1993 – Aug 2026 |
| Bray O-1-14741 | Exco Operating Company, LP only | Pearsall (Austin Chalk) | Dimmit | 2 | 99.4K | 52.2K | Aug 2006 – Aug 2019 |
| Petro Plex Oil Co Inc. Scott AA O-9-9651 | Blue Star Natural Resources, LLC only | John Scott (Grayburg) | Reagan | 8 | 98.8K | 77.5K | by Jan 1993 – Jul 2026 |
| Traylor, Maude A G-2-225770 | Remora Operating, LLC only | Maude B. Traylor (F-41-61, Deep) | Calhoun | 1 | 98.1K | 3.82M | Dec 2006 – Jul 2021 |
| Skelly-University O-9-5095 | Digital Operating Company LLC only | Price (Grayburg) | Reagan | 8 | 97.3K | 224K | by Jan 1993 – Feb 2026 |
| Vaughn, M. O-14-572 | Bce-Mach III LLC only | Panhandle Gray County Field | Gray | 12 | 96.5K | 362K | by Jan 1993 – Oct 2024 |
| Gillespie Gas Unit G-4-225567 | Pangea's Edge Operating Co LLC only | Brayton, N. (Vicksburg 9250) | Nueces | 1 | 96.5K | 583K | Dec 2006 – Aug 2026 |
| Ray, George A. G-2-185398 | Paleo Oil Company LLC only | Kerr (Luling) | Bee | 1 | 96.4K | 6.75M | Aug 2001 – Nov 2021 |
| Worley O-14-511 | Porter Operating Company, L.L.C. only | Panhandle Gray County Field | Gray | 17 | 96.4K | 150K | by Jan 1993 – Aug 2026 |
| Westmorse -WF- O-14-2114 | Bradley Operating Co. only | Panhandle Gray County Field | Gray | 31 | 96.3K | 41.7K | by Jan 1993 – Aug 2026 |
| Moody, Victor O-14-537 | Ponderosa TX Operating LLC only | Panhandle Gray County Field | Gray | 9 | 96K | 806K | by Jan 1993 – Aug 2026 |
| Parker 18 O-10-51355 | Morningstar Operating LLC only | Parker (Grayburg, San Andres) | Andrews | 1 | 94.9K | 26.4K | Feb 2019 – Aug 2026 |
| Hall O-8-30043 | Grayrock Energy II, LLC only | Largent, W. (Strawn Sand) | Jones | 6 | 94.8K | 211K | Jan 2008 – Apr 2025 |
| McKinney, Birdie O-14-7035 | Helton Petroleum only | Panhandle Gray County Field | Gray | 7 | 94.2K | 28.6K | Sep 1994 – Jul 2026 |
| Block 31 Unit O-10-9684 | Hilcorp Energy Company only | Block 31 (Grayburg) | Crane | 29 | 93.7K | 8.31K | by Jan 1993 – Jul 2016 |
| Gillespie G-4-130959 | Alegre Operating, Inc. only | Brayton, N. (Vicksburg 11,100 A) | Nueces | 1 | 93.6K | 1.24M | by Jan 1993 – Nov 2000 |
| Rayburn Unit #11 O-6-13595 | Radius Operating, LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 93.4K | 438K | Aug 1996 – Sep 2012 |
| Day O-10-29631 | Purvis Operating Co. only | Roy White (Grayburg) | Crane | 6 | 93.4K | 20 | by Jan 1993 – Aug 2026 |
| Mechura Unit O-3-23529 | TE-Ray Resources, LLC only | Giddings (Austin Chalk-3) | Fayette | 1 | 93.1K | 197K | Jun 1998 – Aug 2026 |
| Holmes, A. O-14-396 | 6A Production only | Panhandle Gray County Field | Gray | 10 | 93.1K | 341K | by Jan 1993 – Aug 2026 |
| McMurray O-10-36665 | Black Arrow Operating, LLC only | Spraberry (Trend Area) | Martin | 1 | 92.9K | 69.4K | May 2001 – Aug 2026 |
| Annis O-8-4268 | Grayrock Energy II, LLC only | Flowers (Canyon Sand) | Stonewall | 11 | 92.8K | 7.76K | by Jan 1993 – Jul 2026 |
| Atlantic-Univ. O-10-12251 | Energen Resources Corporation only | Block 2 (Grayburg) | Andrews | 7 | 92.7K | 1.58K | by Jan 1993 – Jun 2003 |
| Sailor, Martha O-14-404 | Ponderosa TX Operating LLC only | Panhandle Gray County Field | Gray | 15 | 92.4K | 287K | by Jan 1993 – Aug 2026 |
| Dickey Oil O-14-4014 | Black Sheep Operating, LLC only | Panhandle Gray County Field | Gray | 12 | 92.2K | 449K | by Jan 1993 – Jul 2026 |
| Ray-Sweeney 43G O-10-64408 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 1 | 92K | 155K | Mar 2026 – Aug 2026 |
| Sanray G-3-250690 | IV Standard, LLC only | Shepherd (WX Cons) | San Jacinto | 1 | 91.6K | 2.32M | May 2009 – Aug 2026 |
| Gray, Clara Unit -1- O-1-4731 | Production Resources, Inc. only | Taylor-Ina | Medina | 74 | 91.6K | 29 | by Jan 1993 – Aug 2026 |
| Scott, John R. O-9-791 | Darco Operators only | John Scott (Grayburg) | Reagan | 6 | 91.5K | 233 | by Jan 1993 – Aug 2026 |
| Shelton O-8-29634 | Henson Exploration, L.P. only | Black Dog (Gray Sand) | Taylor | 2 | 91.1K | 138K | Jul 2005 – Jul 2026 |
| Douthit, E. W. -C- De O-10-41057 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 18 | 90.9K | 0 | Dec 2011 – Aug 2026 |
| Batjer, Patti -C- O-10-41851 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 8 | 90.6K | 0 | Dec 2011 – Aug 2026 |
| #1 Rayburn Unit "A" O-6-13614 | Radius Operating, LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 90.5K | 504K | Jul 1996 – Sep 2012 |
| Gray O-14-2359 | United Oil & Shale LLC only | Bradford (Tonkawa) | Lipscomb | 11 | 90.4K | 1.78M | by Jan 1993 – Jul 2026 |
| Pampa Unit O-14-3061 | M5OEXIT, LLC only | Panhandle Gray County Field | Gray | 151 | 90.3K | 25.2K | by Jan 1993 – May 2019 |
| Traylor, Maude B. G-2-147633 | Wagner Oil Company only | Maude B. Traylor (F-41-61, Deep) | Calhoun | 1 | 90K | 2.15M | Nov 1993 – Feb 2017 |
| Fasken BLK -EE- O-10-30451 | Energen Resources Corporation only | Block 2 (Grayburg) | Andrews | 6 | 89.7K | 21 | by Jan 1993 – Mar 2003 |
| Stingray G-10-287409 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Ward | 1 | 89.6K | 630K | Oct 2017 – Aug 2026 |
| McElmurray, A. H. O-8-3058 | Cedar Oil Company only | White Flat | Nolan | 5 | 89.6K | 53.3K | by Jan 1993 – Jul 2026 |
| Donnell, Sallie O-13-29320 | S.B. Street Operating, Inc. only | Murray (Strawn) | Young | 4 | 89.3K | 31K | Mar 1997 – Mar 2024 |
| Burkes O-10-41387 | Acoma Operating, LLC only | Germania (Grayburg) | Midland | 2 | 88.6K | 8.6K | Apr 2011 – Aug 2026 |
| Gray-Cortez O-2-12001 | Goldking Minerals Mgmt, L.L.C. only | Placedo | Victoria | 1 | 88.3K | 42.2K | Nov 2019 – Aug 2026 |
| Pike-Davis #1 O-13-28803 | Grayson Petroleum Company only | Sandusky, West (Strawn North) | Grayson | 1 | 88.2K | 4 | Jun 1994 – Aug 2026 |
| Saunders, J. M. O-14-313 | Ponderosa TX Operating LLC only | Panhandle Gray County Field | Gray | 16 | 88.1K | 70.9K | by Jan 1993 – Aug 2026 |
| Chalk -A- O-10-42210 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 12 | 87.8K | 16.8K | Dec 2011 – Aug 2026 |
| Rayford-McAlister O-10-21111 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 2 | 87.6K | 145K | by Jan 1993 – Oct 2023 |
| Owens, et Al O-9-8407 | Turner Production only | Barnhart (Grayburg) | Reagan | 7 | 87.1K | 22 | by Jan 1993 – Aug 2026 |
| Reynolds, Amanda O-14-541 | Little Oil & Gas only | Panhandle Gray County Field | Gray | 6 | 86.9K | 73.5K | by Jan 1993 – Aug 2026 |