| Hurt O-1-12815 | Shidler, Mark L., Inc. only | Pearsall (Austin Chalk) | Frio | 2 | 113K | 261K | by Jan 1993 – Aug 2009 |
| Rogers 320 O-14-8871 | Highmark Energy Operating, LLC only | Pan Petro (Cleveland) | Ochiltree | 2 | 113K | 1.26M | Apr 2013 – Aug 2026 |
| Fairway/James Lime/Unit G-6-181540 | Highmark Energy Operating, LLC only | Fairway (James Lime) | Anderson | 1 | 112K | 9.16M | Mar 2001 – Jun 2026 |
| Averitt O-10-35732 | Highmark Energy Operating, LLC only | Cowden, South | Ector | 2 | 111K | 0 | May 1998 – Aug 2026 |
| Devin 187 O-14-8604 | Highmark Energy Operating, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 109K | 799K | Jan 2012 – Aug 2026 |
| Miles "B" O-10-25115 | Highmark Energy Operating, LLC only | Deep Rock (Devonian) | Andrews | 3 | 105K | 142K | by Jan 1993 – Jun 2017 |
| TXL #2 O-10-25557 | Highmark Energy Operating, LLC only | Cowden, North (Deep) | Ector | 2 | 103K | 65.3K | by Jan 1993 – Aug 2026 |
| Schumann 112 O-14-8177 | Highmark Energy Operating, LLC only | Pan Petro (Cleveland) | Ochiltree | 1 | 99.1K | 873K | Jun 2010 – Aug 2026 |
| Cities University O-10-27475 | Highmark Energy Operating, LLC only | Deep Rock (Glorieta 5950) | Andrews | 3 | 97.2K | 1.67K | by Jan 1993 – Aug 2026 |
| TXL -3- O-10-29956 | Landmark IP, LLC only | Garden City, S. (Wolfcamp) | Glasscock | 4 | 95.5K | 1.83M | by Jan 1993 – May 2026 |
| Edinburg Unit G-4-175355 | Royal Production Company, Inc. only | Edinburg (Upper Marks "C") | Hidalgo | 1 | 95K | 12.1M | Sep 1999 – Dec 2019 |
| Wallville 384 O-14-8409 | Highmark Energy Operating, LLC only | Pan Petro (Cleveland) | Ochiltree | 1 | 94.1K | 892K | Aug 2010 – Aug 2026 |
| Minium 734 O-14-7654 | Highmark Energy Operating, LLC only | Peery (Cleveland) | Lipscomb | 2 | 94K | 661K | May 2006 – Aug 2026 |
| Myers, N. R. -B- O-3-2976 | KZ Global Energy, LLC only | Markham | Matagorda | 4 | 93.3K | 50.4K | by Jan 1993 – Jul 2026 |
| Stringfield, Tommye G-5-123556 | Highmark Energy Operating, LLC only | Sand Trap (James Lime) | Henderson | 1 | 93.2K | 20.3M | by Jan 1993 – Aug 2026 |
| Holzmark -C- O-2-731 | Chandler Oil & Gas, LLC only | Holzmark | Bee | 16 | 91.9K | 225 | by Jan 1993 – Sep 2022 |
| Ogden -B- O-10-10767 | Highmark Energy Operating, LLC only | Deep Rock (Glorieta 5950) | Andrews | 1 | 91.8K | 17.8K | by Jan 1993 – Jul 2025 |
| Simons, E. J. O-13-12552 | Cruthird, Mark Oil only | Wichita County Regular | Wichita | 18 | 90K | 45 | by Jan 1993 – Jun 2026 |
| Swink 391 O-14-8041 | Highmark Energy Operating, LLC only | Pan Petro (Cleveland) | Ochiltree | 1 | 89.5K | 451K | Aug 2009 – Aug 2026 |
| Fairway/James Lime/Unit G-6-226134 | Highmark Energy Operating, LLC only | Fairway (James Lime) | Anderson | 1 | 88.1K | 12.2M | Feb 2007 – Aug 2026 |
| University -141- O-10-17918 | Highmark Energy Operating, LLC only | Shafter Lake (Clear Fork) | Andrews | 2 | 87.4K | 27.2K | by Jan 1993 – May 2021 |
| Roberts/Miller-Holloway G.U. G-5-124987 | Highmark Energy Operating, LLC only | Sand Trap (James Lime) | Henderson | 1 | 87.3K | 25.3M | by Jan 1993 – Mar 2023 |
| Markham O-11-65175 | Crescent Energy Operating, LLC only | Tex-Mex, SE. (Wichita Albany) | Gaines | 3 | 87.3K | 125K | by Jan 1993 – Jan 2024 |
| University 154 O-10-5512 | Highmark Energy Operating, LLC only | Shafter Lake (Ellenburger) | Andrews | 6 | 86.4K | 11.2K | by Jan 1993 – Nov 2013 |
| Clay, H. R.-A- O-10-41289 | Landmark IP, LLC only | Howard Glasscock (Consolidated) | Howard | 36 | 86.3K | 0 | Dec 2011 – May 2026 |
| Doyle, J.B. G-14-266422 | Highmark Energy Operating, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 85.8K | 974K | Dec 2011 – Jul 2021 |
| Price, Willis D. G-14-267668 | Highmark Energy Operating, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 85K | 719K | Apr 2012 – Aug 2026 |
| Peery 733 O-14-7843 | Highmark Energy Operating, LLC only | Peery (Cleveland) | Lipscomb | 2 | 84.8K | 492K | Dec 2007 – Apr 2025 |
| Muir, John Unit O-1-13846 | Aaronmark Services, LLC only | Nixon | Wilson | 1 | 83.9K | 4.92K | Feb 1994 – Jul 2026 |
| Humble King O-10-26907 | Highmark Energy Operating, LLC only | Deep Rock (Devonian) | Andrews | 1 | 82.7K | 117K | by Jan 1993 – Aug 2026 |
| Tyson 447 O-14-8542 | Highmark Energy Operating, LLC only | Lipscomb (Cleveland) | Lipscomb | 2 | 82.4K | 1.39M | May 2012 – Aug 2026 |
| Sorenson Gas Unit G-4-161981 | Wagner Oil Company only | Donna (Marks) | Hidalgo | 1 | 81.5K | 3.99M | Jan 1997 – Aug 2026 |
| Lockhart 1001 O-14-8927 | Highmark Energy Operating, LLC only | Allen-Parker (Marmaton) | Ochiltree | 1 | 80.6K | 357K | Sep 2013 – Aug 2026 |
| Doyle, J.B. O-14-5816 | Highmark Energy Operating, LLC only | Lipscomb, E. (Des Moines) | Lipscomb | 3 | 80.3K | 694K | by Jan 1993 – Jul 2020 |
| Hightower et al GU 1 G-5-111323 | Highmark Energy Operating, LLC only | Moore Station (James Lime) | Henderson | 1 | 78.8K | 19.2M | by Jan 1993 – Sep 2024 |
| Beham O-7-8074 | Danmark Energy Services, Inc. only | East Texas | Gregg | 2 | 78.6K | 25.1K | by Jan 1993 – Jul 2001 |
| Pearl Wheat 'a' 765 O-14-7737 | Highmark Energy Operating, LLC only | Peery (Cleveland) | Lipscomb | 2 | 78.6K | 448K | Jan 2007 – Aug 2026 |
| Blais 1001 O-14-8951 | Highmark Energy Operating, LLC only | Allen-Parker (Marmaton) | Ochiltree | 1 | 77.8K | 368K | Sep 2013 – Aug 2026 |
| Doyle, J.B. G-14-266375 | Highmark Energy Operating, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 75.6K | 1.24M | Jun 2011 – Aug 2026 |
| Keystone Mills O-3-25398 | Highmark Energy Operating, LLC only | Conroe (Middle Wilcox Cons.) | Montgomery | 1 | 74.2K | 163K | May 2009 – Jul 2026 |
| Southland Royalty -C- O-10-16023 | Highmark Energy Operating, LLC only | Deep Rock, South (Wolfcamp) | Andrews | 1 | 72.5K | 7.83K | by Jan 1993 – Feb 2026 |
| Wilson, J. T. O-1-367 | Aaronmark Services, LLC only | Crown, E. (Navarro) | Atascosa | 8 | 72.3K | 21 | by Jan 1993 – Jul 2026 |
| Evans, W. E. O-3-23534 | Shidler, Mark L., Inc. only | Alta Loma, S. (Frio SD) | Galveston | 1 | 70K | 90.4K | Aug 1998 – Dec 2005 |
| George -C- O-13-16687 | Cruthird, Mark Oil only | Wichita County Regular | Wichita | 13 | 70K | 45 | by Jan 1993 – Jun 2026 |
| Ohio-Sun Unit O-3-2999 | Goldking Minerals Mgmt, L.L.C. only | Markham N.-Bay City,n (McDonald) | Matagorda | 13 | 69.8K | 107K | by Jan 1993 – May 2026 |
| Weidner 798 O-14-9140 | Highmark Energy Operating, LLC only | Lipscomb (Cleveland) | Lipscomb | 2 | 67.9K | 815K | May 2011 – Aug 2026 |
| `earl Wheat 765 O-14-7677 | Highmark Energy Operating, LLC only | Peery (Cleveland) | Lipscomb | 1 | 66.8K | 275K | Aug 2006 – Nov 2017 |
| Malinda 745 O-14-9700 | Highmark Energy Operating, LLC only | Allen-Parker (Marmaton) | Ochiltree | 1 | 65.3K | 397K | Jul 2018 – Aug 2026 |
| Glass 112 O-14-8147 | Highmark Energy Operating, LLC only | Pan Petro (Cleveland) | Ochiltree | 1 | 64.1K | 451K | May 2010 – Aug 2026 |
| Miles, Hayden -A- O-10-31681 | Highmark Energy Operating, LLC only | Deep Rock (Devonian) | Andrews | 1 | 63.8K | 36.3K | by Jan 1993 – Feb 2020 |