| Dawson & Conway -B- O-8-5302 | Overland Operating Company, LLC only | Shackelford County Regular | Shackelford | 23 | 257K | 66 | Jan 1993 – Jan 2021 |
| Nail "WE" O-8-22689 | Petex only | Shackelford County Regular | Shackelford | 9 | 212K | 5.65K | Jan 1993 – Apr 2026 |
| Morris, J. P. O-8-3544 | Rigged UP, LLC only | Shackelford County Regular | Shackelford | 51 | 204K | 38 | Jan 1993 – Jun 2024 |
| Nail 80S O-8-25076 | Petex only | Shackelford County Regular | Shackelford | 6 | 175K | 21 | Jan 1993 – Apr 2026 |
| Lee, T. W. -A- O-8-3541 | JTC Royalties LLC only | Shackelford County Regular | Shackelford | 10 | 145K | 22 | Jan 1993 – Apr 2026 |
| Hayden-Hubbard (Moran Sand) Unit O-8-11802 | Momentum Operating Co., Inc. only | Shackelford County Regular | Shackelford | 8 | 133K | 51.3K | Jan 1993 – Apr 2026 |
| Nail Ranch Block 3 O-8-30944 | Clavo Oil, LLC only | Shackelford County Regular | Shackelford | 14 | 131K | 0 | Mar 2012 – Apr 2026 |
| Hooker Trust -B- O-8-6418 | JTC Royalties LLC only | Shackelford County Regular | Shackelford | 9 | 127K | 0 | Jun 2001 – Apr 2026 |
| Nail, Chloe A. O-8-3358 | Clavo Oil, LLC only | Shackelford County Regular | Shackelford | 3 | 124K | 170 | Jan 1993 – Apr 2026 |
| Hooker Trust O-8-3466 | Rattlesnake Mountain Oil LLC only | Shackelford County Regular | Shackelford | 16 | 123K | 22 | Jan 1993 – Apr 2026 |
| Morris "M" O-8-3312 | Rigged UP, LLC only | Shackelford County Regular | Shackelford | 23 | 122K | 22 | Jan 1993 – Jul 2021 |
| Nail ZI O-8-23019 | Jacobs, C. E., Co. only | Shackelford County Regular | Shackelford | 3 | 121K | 322K | Jan 1993 – Jun 2020 |
| Davis, W. Y. O-8-3225 | Schkade Production Co. only | Shackelford County Regular | Shackelford | 18 | 115K | 34 | Jan 1993 – Oct 2017 |
| Jeter, E. A. O-8-3214 | Just Oil & Gas, Inc. only | Shackelford County Regular | Shackelford | 58 | 113K | 9.46K | Jan 1993 – Mar 2026 |
| Davis, Merrick O-8-3183 | Schkade Production Co. only | Shackelford County Regular | Shackelford | 14 | 110K | 34 | Jan 1993 – Sep 2017 |
| Ackers 24 O-8-14067 | Overland Operating Company, LLC only | Shackelford County Regular | Shackelford | 11 | 109K | 570 | Jan 1993 – Jan 2021 |
| Newell Sec. 2 O-8-3546 | CDJ Oil Company, LLC only | Shackelford County Regular | Shackelford | 22 | 109K | 1.99K | Jan 1993 – Feb 2026 |
| Moore O-8-20245 | J & TG, LLC only | Shackelford County Regular | Shackelford | 9 | 103K | 264K | Jan 1993 – Apr 2026 |
| Parrott-Jeter O-8-18381 | Just Oil & Gas, Inc. only | Shackelford County Regular | Shackelford | 14 | 95.2K | 59 | Jan 1993 – Mar 2026 |
| Moberley, R. J., Jr. O-8-3209 | Hughes & Patterson Oper. Corp. only | Shackelford County Regular | Shackelford | 32 | 94.3K | 22 | Jan 1993 – Apr 2026 |
| Nail Tract 3 O-8-6014 | Robert C. Brower, LLC only | Shackelford County Regular | Shackelford | 3 | 92.1K | 398 | Jan 1993 – Apr 2026 |
| Hendrick, T. G. O-8-6615 | Sojourner Drilling Corporation only | Shackelford County Regular | Shackelford | 2 | 88.5K | 20 | Jan 1993 – Jan 2026 |
| Waller, C. W. O-8-12005 | Waller, C.W. Oil Co. only | Shackelford County Regular | Shackelford | 6 | 87.9K | 7.14K | Jan 1993 – Apr 2026 |
| Polley Unit O-8-25473 | Sojourner Drilling Corporation only | Shackelford County Regular | Shackelford | 3 | 87K | 68.5K | Jan 1993 – Apr 2026 |
| Morris, J. P., Estate O-8-3510 | Rigged UP, LLC only | Shackelford County Regular | Shackelford | 13 | 82.7K | 20 | Jan 1993 – Jan 2021 |
| Hooker Trust- -Key Lee- O-8-3365 | Cobra Oil & Gas Corporation only | Shackelford County Regular | Shackelford | 2 | 81.8K | 21 | Jan 1993 – Apr 2026 |
| Hendrick 75B O-8-14201 | Petex only | Shackelford County Regular | Shackelford | 4 | 75K | 21 | Jan 1993 – Apr 2026 |
| Davis O-8-3535 | Dara Explorations, LLC only | Shackelford County Regular | Shackelford | 15 | 73.1K | 142 | Jan 1993 – Mar 2026 |
| Matthews - 31 O-8-3339 | Rocoso Resources, LLC only | Shackelford County Regular | Shackelford | 24 | 72.2K | 22 | Jan 1993 – Oct 2017 |
| Douglas, W. L. O-8-3226 | Ruff Oil Co. only | Shackelford County Regular | Shackelford | 25 | 70.1K | 21 | Jan 1993 – Apr 2026 |
| Morris, J.P. "189" O-8-27105 | Golden Horse Group Corp. only | Shackelford County Regular | Shackelford | 17 | 68.1K | 26 | Nov 1993 – Apr 2026 |
| Hendrick, T. G. Est. O-8-6417 | Van Operating, Ltd. only | Shackelford County Regular | Shackelford | 3 | 63.2K | 21 | Jan 1993 – Oct 2020 |
| Nail WC O-8-24794 | Petex only | Shackelford County Regular | Shackelford | 3 | 61.4K | 148K | Jan 1993 – Apr 2026 |
| Dawson & Conway /West. Tex./ O-8-3307 | Snyder Drilling Corp. only | Shackelford County Regular | Shackelford | 11 | 58.5K | 166 | Jan 1993 – Apr 2026 |
| Dawson & Conway O-8-3536 | Rigged UP, LLC only | Shackelford County Regular | Shackelford | 24 | 58.1K | 36 | Jan 1993 – Jun 2024 |
| Matthews-C- O-8-12302 | JTC Royalties LLC only | Shackelford County Regular | Shackelford | 10 | 56.6K | 22 | Jan 1993 – Mar 2026 |
| Owens, W. C. O-8-3296 | Tabor Creek Oil Company only | Shackelford County Regular | Shackelford | 14 | 55.5K | 21 | Jan 1993 – Apr 2026 |
| Pittman, Laver "572" O-8-24804 | Salty Lime Energy, LLC only | Shackelford County Regular | Shackelford | 8 | 53.1K | 162 | Jan 1993 – Mar 2025 |
| Matthews, J.B. O-8-24024 | JTC Royalties LLC only | Shackelford County Regular | Shackelford | 7 | 52.4K | 27.9K | Jan 1993 – Apr 2026 |
| Lones, H. A. O-8-3217 | BL Production, LLC only | Shackelford County Regular | Shackelford | 15 | 52.3K | 21 | Jan 1993 – Jan 2026 |
| Diller, Virginia O-8-18327 | Crow, Ken only | Shackelford County Regular | Shackelford | 23 | 51.6K | 53 | Jan 1993 – Jan 2018 |
| Nail 12E O-8-3328 | Jacobs, C. E., Co. only | Shackelford County Regular | Shackelford | 11 | 49.9K | 21 | Jan 1993 – Apr 2021 |
| Arnold, J. H. O-8-3291 | Dark Canyon Resources LLC only | Shackelford County Regular | Shackelford | 29 | 48.2K | 21 | Jan 1993 – Jun 2023 |
| Hendrick, T. G. -A- O-8-6524 | Momentum Operating Co., Inc. only | Shackelford County Regular | Shackelford | 4 | 48.2K | 21 | Jan 1993 – Apr 2025 |
| Caldwell O-8-20518 | Oaktree Oil Company only | Shackelford County Regular | Shackelford | 10 | 48.2K | 257 | Jan 1993 – Apr 2026 |
| Nail NC O-8-27116 | Jacobs, C. E., Co. only | Shackelford County Regular | Shackelford | 1 | 47.9K | 8 | Feb 1994 – Jul 2019 |
| Nail-137 O-8-23299 | Double C Operating LLC only | Shackelford County Regular | Shackelford | 11 | 46.4K | 36 | Feb 1993 – Apr 2026 |
| Davis, Merrick O-8-10142 | United Operating, LLC only | Shackelford County Regular | Shackelford | 13 | 45.7K | 12.6K | Jan 1993 – Sep 2015 |
| Reynolds, W. D. O-8-3211 | Scott Operating, Inc. only | Shackelford County Regular | Shackelford | 1 | 45.4K | 22 | Jan 1993 – Apr 2026 |
| Stasney's Cook Ranch "57" O-8-29973 | Stasney Well Service, LLC only | Shackelford County Regular | Shackelford | 19 | 44.9K | 0 | Sep 2007 – Apr 2026 |