| Shafter Lake Clearfork Unit O-10-34411 | Highmark Energy Operating, LLC | Shafter Lake (Clear Fork) | Andrews | 79 | 5.61M | 1.5M | Feb 1995 – Jul 2026 |
| Bitler-Lowe Clearfork Unit O-10-29029 | Highmark Energy Operating, LLC | Fullerton | Andrews | 50 | 2.57M | 1.15M | Jan 1993 – Jul 2026 |
| Deep Rock Etal -A- O-10-1033 | Highmark Energy Operating, LLC | Deep Rock (Glorieta 5950) | Andrews | 9 | 1.65M | 161K | Jan 1993 – Jul 2026 |
| University San Andres Unit O-10-36661 | Highmark Energy Operating, LLC | Shafter Lake (San Andres) | Andrews | 44 | 743K | 422K | Aug 2001 – Jul 2026 |
| University -154- O-10-5506 | Highmark Energy Operating, LLC | Shafter Lake (Devonian) | Andrews | 6 | 634K | 602K | Jan 1993 – Jul 2026 |
| University 155 O-10-33626 | Highmark Energy Operating, LLC | Shafter Lake (Devonian) | Andrews | 8 | 619K | 487K | Jan 1993 – Jul 2026 |
| University 141A ,173 O-10-5504 | Highmark Energy Operating, LLC | Shafter Lake (Devonian) | Andrews | 15 | 541K | 315K | Jan 1993 – Jul 2026 |
| Graham-University O-10-27850 | Highmark Energy Operating, LLC | Deep Rock (Glorieta 5950) | Andrews | 3 | 435K | 6.07K | Jan 1993 – Jul 2026 |
| Bitler-Lowe -B- O-10-13485 | Highmark Energy Operating, LLC | Fullerton | Andrews | 11 | 425K | 269K | Jan 1993 – Jul 2026 |
| Miles, Hayden A O-10-37793 | Highmark Energy Operating, LLC | Deep Rock (Glorieta 5950) | Andrews | 3 | 413K | 46.1K | May 2006 – Jul 2026 |
| University 153 O-10-5505 | Highmark Energy Operating, LLC | Shafter Lake (Devonian) | Andrews | 6 | 400K | 185K | Jan 1993 – Jul 2026 |
| University -C- O-10-5498 | Highmark Energy Operating, LLC | Shafter Lake (Devonian) | Andrews | 4 | 385K | 238K | Jan 1993 – Jul 2026 |
| University -154- O-10-10925 | Highmark Energy Operating, LLC | Shafter Lake (Clear Fork) | Andrews | 5 | 350K | 193K | Jan 1993 – Jul 2026 |
| University -F- O-10-19655 | Highmark Energy Operating, LLC | Shafter Lake (Clear Fork) | Andrews | 3 | 317K | 125K | Jan 1993 – Jul 2026 |
| University 173 O-10-19459 | Highmark Energy Operating, LLC | Shafter Lake (Clear Fork) | Andrews | 3 | 299K | 152K | Jan 1993 – Jul 2026 |
| Deep Rock et al -A- O-10-21679 | Highmark Energy Operating, LLC | Shafter Lake (San Andres) | Andrews | 4 | 236K | 50.6K | Jan 1993 – Jul 2026 |
| Lowe, M. R. 15 O-10-37827 | Highmark Energy Operating, LLC | Fullerton | Andrews | 6 | 216K | 143K | Jul 2006 – Jul 2026 |
| Shell-Perkins O-10-28453 | Highmark Energy Operating, LLC | Deep Rock (Penn.) | Andrews | 10 | 204K | 385K | Jan 1993 – Jul 2026 |
| E. F. King O-10-42650 | Highmark Energy Operating, LLC | Fuhrman (Glorieta) | Andrews | 2 | 152K | 1.78K | Mar 2012 – Jul 2026 |
| Davis, L. T. O-10-11206 | Highmark Energy Operating, LLC | Fuhrman-Mascho (Devonian) | Andrews | 2 | 139K | 510K | Jan 1993 – Jul 2026 |
| Davis, L. T. O-10-1720 | Highmark Energy Operating, LLC | Fuhrman-Mascho | Andrews | 12 | 129K | 201K | Jan 1993 – Jul 2026 |
| University -F- O-10-5508 | Highmark Energy Operating, LLC | Shafter Lake (Devonian) | Andrews | 2 | 125K | 46.8K | Jan 1993 – Jul 2026 |
| University 173 O-10-28762 | Highmark Energy Operating, LLC | Shafter Lake (Ellenburger) | Andrews | 2 | 119K | 14.7K | Jan 1993 – Jul 2026 |
| Miles "B" O-10-25115 | Highmark Energy Operating, LLC | Deep Rock (Devonian) | Andrews | 3 | 105K | 142K | Jan 1993 – Jul 2026 |
| Cities University O-10-27475 | Highmark Energy Operating, LLC | Deep Rock (Glorieta 5950) | Andrews | 3 | 96.9K | 1.67K | Jan 1993 – Jul 2026 |
| University -141- O-10-17918 | Highmark Energy Operating, LLC | Shafter Lake (Clear Fork) | Andrews | 2 | 87.4K | 27.2K | Jan 1993 – Apr 2025 |
| University 154 O-10-5512 | Highmark Energy Operating, LLC | Shafter Lake (Ellenburger) | Andrews | 6 | 86.4K | 11.2K | Jan 1993 – Jul 2026 |
| Humble King O-10-26907 | Highmark Energy Operating, LLC | Deep Rock (Devonian) | Andrews | 1 | 82.5K | 117K | Jan 1993 – Jul 2026 |
| Miles, Hayden -A- O-10-31681 | Highmark Energy Operating, LLC | Deep Rock (Devonian) | Andrews | 1 | 63.8K | 36.3K | Jan 1993 – Jul 2026 |
| University "C" O-10-33935 | Highmark Energy Operating, LLC | Shafter Lake (San Andres) | Andrews | 2 | 56.8K | 27.6K | Aug 1993 – Jul 2026 |
| Miles, Hayden B O-10-37980 | Highmark Energy Operating, LLC | Deep Rock (Glorieta 5950) | Andrews | 1 | 52K | 15K | Jul 2006 – Jul 2026 |
| King, E. F. O-10-1722 | Highmark Energy Operating, LLC | Fuhrman-Mascho | Andrews | 7 | 49.9K | 79.7K | Jan 1993 – Jul 2026 |
| University 155 O-10-33625 | Highmark Energy Operating, LLC | Shafter Lake (Ellenburger) | Andrews | 2 | 46.2K | 20K | Jan 1993 – Jul 2026 |
| Southland Royalty -C- O-10-32033 | Highmark Energy Operating, LLC | Wallen (San Andres) | Andrews | 1 | 40.1K | 8.85K | Jan 1993 – Jul 2026 |
| University "143" O-10-24645 | Highmark Energy Operating, LLC | Shafter Lake (San Andres) | Andrews | 1 | 33K | 13.6K | Jan 1993 – Jul 2026 |
| Davis, L. T. O-10-43709 | Highmark Energy Operating, LLC | Fuhrman (Glorieta) | Andrews | 1 | 32.1K | 29.5K | Jan 2012 – Jul 2026 |
| Southland Royalty "D" O-10-34938 | Highmark Energy Operating, LLC | Wallen (San Andres) | Andrews | 1 | 30.6K | 2.82K | Apr 1996 – Jul 2026 |
| Cabot University Lands O-10-29790 | Highmark Energy Operating, LLC | Shafter Lake (San Andres) | Andrews | 1 | 23.4K | 9.32K | Jan 1993 – Jul 2026 |
| University 174 O-10-22342 | Highmark Energy Operating, LLC | Shafter Lake (Clear Fork) | Andrews | 2 | 22.2K | 6.73K | Jan 1993 – Apr 2025 |
| Lowe, M. R. 6 O-10-39446 | Highmark Energy Operating, LLC | Fullerton | Andrews | 2 | 19.6K | 23.8K | Feb 2009 – Jul 2026 |
| University "C" O-10-37431 | Highmark Energy Operating, LLC | Shafter Lake (Yates) | Andrews | 2 | 16.6K | 14.3K | Nov 2004 – Jul 2026 |
| University -C- O-10-31397 | Highmark Energy Operating, LLC | Shafter Lake (Ellenburger) | Andrews | 3 | 15.7K | 6.28K | Jan 1993 – Jun 2025 |
| University 153 O-10-45100 | Highmark Energy Operating, LLC | Shafter Lake (Clear Fork) | Andrews | 1 | 11.6K | 3.67K | Jan 2011 – Jun 2024 |
| University -C- O-10-48797 | Highmark Energy Operating, LLC | Shafter Lake (Clear Fork) | Andrews | 1 | 5.57K | 2.48K | Apr 2017 – Jul 2026 |
| McMillian O-10-56138 | Highmark Energy Operating, LLC | Deep Rock (Wolfcamp) | Andrews | 1 | 493 | 0 | Jun 2021 – Jul 2026 |
| University -C- O-10-19474 | Highmark Energy Operating, LLC | Shafter Lake (Wolfcamp) | Andrews | 3 | 187 | 132 | Jan 1993 – Jun 2025 |
| Cso-Arco O-10-27753 | Highmark Energy Operating, LLC | Shafter Lake (San Andres) | Andrews | 1 | 0 | 0 | Jan 1993 – Jul 2026 |
| Southland Royalty D O-10-48493 | Highmark Energy Operating, LLC | Deep Rock (Glorieta 5950) | Andrews | 1 | 0 | 0 | Dec 2016 – Jul 2026 |