| Dodge, Granville M., Est. O-10-2905 | Grayrock Energy II, LLC only | Iatan, East Howard | Howard | 262 | 5.2M | 438K | Jan 1993 – Jul 2026 |
| Ray Kinsella O-10-51476 | SM Energy Company only | Spraberry (Trend Area) | Howard | 5 | 1.72M | 3.96M | Feb 2019 – Jul 2026 |
| Snyder, Susie B. O-10-6197 | Grayrock Energy II, LLC only | Snyder | Howard | 83 | 1.3M | 23.4K | Jan 1993 – Jul 2026 |
| Snyder, B. S. -A- O-10-6213 | Grayrock Energy II, LLC only | Snyder | Howard | 28 | 1.14M | 95.3K | Jan 1993 – Jul 2026 |
| Kloh O-10-42224 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 80 | 997K | 0 | Dec 2011 – Jul 2026 |
| Graystone Unit 39-26 O-10-62685 | Surge Operating, LLC only | Spraberry (Trend Area) | Howard | 6 | 823K | 1.53M | Nov 2024 – Jul 2026 |
| Davis, J. W. -B- O-10-2902 | Grayrock Energy II, LLC only | Iatan, East Howard | Howard | 17 | 691K | 24.9K | Jan 1993 – Jul 2026 |
| Chalk, G. O. O-10-42240 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 40 | 563K | 286 | Dec 2011 – Jul 2026 |
| Murray B O-10-2894 | Bce-Mach III LLC only | Iatan, East Howard | Howard | 12 | 501K | 17.1K | Jan 1993 – Jul 2026 |
| Snyder, B. S. -C- O-10-6219 | Grayrock Energy II, LLC only | Snyder | Howard | 39 | 443K | 34K | Jan 1993 – Jul 2026 |
| Settles, W. R. O-10-41272 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 47 | 426K | 0 | Dec 2011 – Jul 2026 |
| Murray C O-10-2893 | Bce-Mach III LLC only | Iatan, East Howard | Howard | 12 | 374K | 17.5K | Jan 1993 – Jul 2026 |
| TXL, B. S. -D- O-10-6195 | Grayrock Energy II, LLC only | Snyder | Howard | 18 | 360K | 34.8K | Jan 1993 – Jul 2026 |
| Snyder, B. S. -E- O-10-6221 | Grayrock Energy II, LLC only | Snyder | Howard | 20 | 287K | 27.7K | Jan 1993 – Jul 2026 |
| Denman, L. C. -B- O-10-2904 | Grayrock Energy II, LLC only | Iatan, East Howard | Howard | 9 | 278K | 264 | Jan 1993 – Jul 2026 |
| Denman, L. C., -A- O-10-2903 | Grayrock Energy II, LLC only | Iatan, East Howard | Howard | 16 | 276K | 3.07K | Jan 1993 – Jul 2026 |
| Murray A O-10-2892 | Bce-Mach III LLC only | Iatan, East Howard | Howard | 8 | 265K | 10.3K | Jan 1993 – Jul 2026 |
| TXL, B. S. -A- O-10-6214 | Grayrock Energy II, LLC only | Snyder | Howard | 18 | 234K | 10.6K | Jan 1993 – Jul 2026 |
| Clay O-10-42235 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 29 | 230K | 24.9K | Dec 2011 – Jul 2026 |
| Reed Brothers De O-10-41054 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 20 | 220K | 0 | Dec 2011 – Jul 2026 |
| Ray O-10-37772 | New Height Energy, LLC only | Spraberry (Trend Area) | Howard | 5 | 193K | 918K | Feb 2006 – Jul 2026 |
| Douthit, E. W. De O-10-41277 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 22 | 157K | 33 | Dec 2011 – Jul 2026 |
| Reed. L. R & W. N. O-10-41275 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 35 | 138K | 0 | Dec 2011 – Jul 2026 |
| Clay, H. R. O-10-41676 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 36 | 135K | 0 | Dec 2011 – Jul 2026 |
| Batjer, Patti -B- O-10-41781 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 13 | 115K | 0 | Dec 2011 – Jul 2026 |
| Raymond Eula 30 O-10-43568 | New Height Energy, LLC only | Spraberry (Trend Area) | Howard | 4 | 115K | 495K | Oct 2012 – Jul 2026 |
| Denman /Clark/ O-10-2870 | Grayrock Energy II, LLC only | Iatan, East Howard | Howard | 8 | 110K | 264 | Jan 1993 – Jul 2026 |
| Douthit, E. W. -B- O-10-42229 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 3 | 107K | 0 | Dec 2011 – Jul 2026 |
| Batjer, Patti -C- O-10-41851 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 8 | 88.7K | 0 | Dec 2011 – Jul 2026 |
| Douthit, E. W. -C- De O-10-41057 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 18 | 88.5K | 0 | Dec 2011 – Jul 2026 |
| Chalk -A- O-10-42210 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 12 | 86.2K | 16.8K | Dec 2011 – Jul 2026 |
| TXL, B. S. -C- O-10-11645 | Grayrock Energy II, LLC only | Snyder | Howard | 11 | 81.8K | 2.65K | Jan 1993 – Jul 2026 |
| Douthit, E. W. -B- De O-10-41056 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 7 | 80.7K | 0 | Dec 2011 – Jul 2026 |
| Chalk, Otis /EO/ O-10-42211 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 7 | 70.3K | 22.7K | Dec 2011 – Jul 2026 |
| Cities-Reed O-10-42227 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 2 | 57.7K | 0 | Dec 2011 – Jul 2026 |
| Snyder, D. H., Jr. O-10-15882 | Grayrock Energy II, LLC only | Snyder | Howard | 7 | 49.3K | 6.41K | Jan 1993 – Jul 2026 |
| Douthit Unit O-10-41269 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 51 | 47.5K | 0 | Dec 2011 – Jul 2026 |
| Snyder, B. S. -D- O-10-6194 | Grayrock Energy II, LLC only | Snyder | Howard | 4 | 45.9K | 5.99K | Jan 1993 – Jul 2026 |
| Snyder, D. H. O-10-16258 | Grayrock Energy II, LLC only | Snyder | Howard | 7 | 43.3K | 4.63K | Jan 1993 – Jul 2026 |
| Murray O-10-2895 | Bce-Mach III LLC only | Iatan, East Howard | Howard | 8 | 39.7K | 5.51K | Jan 1993 – Jul 2026 |
| Reed -A- O-10-41267 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 7 | 38.8K | 0 | Dec 2011 – Jul 2026 |
| Ray Unit 23 O-10-46989 | Oxyrock Operating, LLC only | Spraberry (Trend Area) | Howard | 1 | 37.3K | 166K | Aug 2015 – Jul 2026 |
| Douthit, E. W. -a- De O-10-41276 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 8 | 35.5K | 0 | Dec 2011 – Jul 2026 |
| Ray 2 O-10-43696 | Ovintiv USA Inc. only | Spraberry (Trend Area) | Howard | 1 | 33.5K | 172K | Feb 2013 – Jul 2026 |
| Batjer, Patti O-10-41852 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 2 | 29.1K | 0 | Dec 2011 – Jul 2026 |
| Snyder, B. S. -B- O-10-6228 | Grayrock Energy II, LLC only | Snyder | Howard | 6 | 21.8K | 33 | Jan 1993 – Jul 2026 |
| Reed "C" O-10-42233 | Grayrock Energy II, LLC only | Howard Glasscock (Consolidated) | Howard | 1 | 14.3K | 0 | Dec 2011 – Jul 2026 |
| Dodge, Granville M., Est. O-10-52980 | Grayrock Energy II, LLC only | Iatan (San Andres) | Howard | 3 | 11.7K | 0 | Jun 2019 – Jul 2026 |
| Ray A O-10-41347 | New Height Energy, LLC only | Spraberry (Trend Area) | Howard | 1 | 9.38K | 118K | Nov 2011 – Jul 2026 |
| Davis, J.W. -B- O-10-52796 | Grayrock Energy II, LLC only | Iatan (San Andres) | Howard | 1 | 9.19K | 0 | Oct 2019 – Jul 2026 |