| Vagrant 38 Fee Unit G-10-281249 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Culberson | 1 | 1.77M | 15.8M | Sep 2016 – Apr 2026 |
| Midland AX Fee Unit O-10-46591 | Chevron U. S. A. Inc. only | Spraberry (Trend Area) | Midland | 12 | 1.52M | 6.9M | Oct 2015 – Apr 2026 |
| Vagrant 38 Fee Unit G-10-288281 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Culberson | 1 | 818K | 4.33M | Oct 2018 – Apr 2026 |
| Texasgulf, Inc. Fee Unit O-3-23450 | Texas Independent Explor Ltd. only | Old Ocean North (10150) | Brazoria | 1 | 743K | 415K | Dec 1997 – Apr 2026 |
| Ector Fee Unit II O-10-21673 | Formentera Operations LLC only | Harper (Ellenburger) | Ector | 3 | 726K | 733K | Jan 1993 – Apr 2026 |
| Foolish Pleasure 6 Fee Unit C G-10-288651 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Culberson | 1 | 665K | 5.92M | Oct 2019 – Apr 2026 |
| Donerail 8 Fee Unit G-10-289476 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Culberson | 1 | 543K | 4.8M | Dec 2019 – Apr 2026 |
| Donerail 8 Fee Unit C G-10-289477 | Coterra Energy Operating Co. only | Derby (Bone Spring) | Culberson | 1 | 466K | 3.94M | Jan 2020 – Mar 2026 |
| Fee Unit O-11-66703 | Unitex Oil & Gas, L.L.C. only | Sharon Ridge (1700) | Mitchell | 40 | 428K | 41 | Jan 1993 – Apr 2026 |
| Donerail 8 Fee Unit G-10-299362 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Culberson | 1 | 384K | 3.04M | Dec 2024 – Apr 2026 |
| Vagrant 38 Fee Unit G-10-277900 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Culberson | 1 | 367K | 1.92M | Apr 2015 – Apr 2026 |
| Arco Fee Unit A-924 G-6-158379 | Anadarko E&P Company LP only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 309K | 4.95M | Jan 1996 – Jun 2003 |
| Arco Fee Unit A-888 G-6-152511 | Rockstar Production, LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 296K | 6.63M | Sep 1994 – Apr 2026 |
| Donerail 8 Fee Unit G-10-299374 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Culberson | 1 | 274K | 1.92M | Nov 2024 – Apr 2026 |
| Arco Fee Unit A-121 G-6-151133 | Union Pacific Resources Company only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 254K | 2.6M | May 1994 – Mar 2000 |
| Donerail 8 Fee Unit G-10-299371 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Culberson | 1 | 237K | 2.34M | Dec 2024 – Apr 2026 |
| Broughton-McAfee Unit O-3-23401 | Wildfire Energy Operating LLC only | Giddings (Buda) | Robertson | 1 | 237K | 43.1K | Dec 1997 – Mar 2026 |
| Donerail 8 Fee Unit G-10-299363 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Culberson | 1 | 227K | 1.65M | Nov 2024 – Feb 2026 |
| Donerail 8 Fee Unit G-10-299369 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Culberson | 1 | 218K | 1.44M | Dec 2024 – Apr 2026 |
| Donerail 8 Fee Unit G-10-299372 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Culberson | 1 | 217K | 2.02M | Dec 2024 – Apr 2026 |
| Vagrant 38 Fee Unit G-10-273294 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Culberson | 1 | 187K | 3.22M | Oct 2013 – Apr 2026 |
| Texaco Fee Unit 3 O-6-13152 | HK Energy Operating, LLC only | Brookeland (Austin Chalk, 8800) | Newton | 1 | 182K | 4.18M | Jan 1993 – Nov 2013 |
| Arco Fee Unit A-312 G-6-156383 | Prize Exploration & Prod, LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 176K | 2.94M | Apr 1995 – Nov 2017 |
| Arco Fee Unit A-917 O-6-13343 | Enervest Operating, L.L.C. only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 175K | 570K | Aug 1994 – Nov 2005 |
| Donerail 8 Fee Unit G-10-299373 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Culberson | 1 | 170K | 1.36M | Nov 2024 – Mar 2026 |
| Vagrant 38 Fee Unit G-10-301268 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Culberson | 1 | 170K | 1.03M | Aug 2025 – Apr 2026 |
| Ector Fee Unit O-10-34363 | Aghorn Operating, Inc. only | Harper (Fusselman) | Ector | 1 | 165K | 242K | Dec 1994 – Feb 2026 |
| Arco Fee Unit A-228 G-6-153489 | Enervest Operating, L.L.C. only | Brookeland (Austin Chalk, 8800) | Newton | 1 | 163K | 2.16M | May 1994 – Nov 2001 |
| Vagrant 38 Fee Unit G-10-301239 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Culberson | 1 | 156K | 1.01M | Aug 2025 – Apr 2026 |
| Arco Fee Unit A-897 O-6-13336 | BP America Production Company only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 155K | 1.53M | May 1994 – May 2015 |
| Mobil Fee Unit O-3-20067 | Foundation Energy Management LLC only | Sour Lake | Hardin | 2 | 153K | 51.4K | Jan 1993 – Apr 2026 |
| Arco Fee Unit A-1001 O-6-13517 | Enervest Operating, L.L.C. only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 149K | 607K | Mar 1995 – Nov 2005 |
| Arco Fee Unit A-241 G-6-152480 | Prize Exploration, LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 145K | 3.06M | Sep 1994 – Mar 2022 |
| Vastar Fee Unit A-888 G-6-176601 | Rockstar Production, LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 139K | 2.8M | Sep 1999 – Apr 2026 |
| Arco Fee Unit A-222 G-6-158017 | Bonfire Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 136K | 1.71M | Jan 1996 – Dec 2009 |
| Arco Fee Unit #4 O-6-13479 | Radius Operating, LLC only | Brookeland (Austin Chalk, 8800) | San Augustine | 2 | 132K | 610K | Jun 1995 – Sep 2012 |
| Murfee Unit O-8-27743 | Star Production, Inc. only | Murfee (Canyon Reef) | Jones | 1 | 131K | 275K | Nov 1995 – Aug 2016 |
| Vagrant 38 Fee Unit G-10-301137 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Culberson | 1 | 131K | 549K | Aug 2025 – Apr 2026 |
| Arco Fee Unit A-210 G-6-151506 | Atlas Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 130K | 3.68M | Apr 1994 – Mar 2026 |
| Vagrant 38 Fee Unit G-10-301212 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Culberson | 1 | 128K | 840K | Aug 2025 – Apr 2026 |
| Arco Fee Unit A-208 G-6-149501 | RKI Energy Resources, LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 124K | 3.08M | Feb 1994 – Apr 2014 |
| Vagrant 38 Fee Unit G-10-301247 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Culberson | 1 | 123K | 547K | Aug 2025 – Apr 2026 |
| Vastar Fee Unit A-121 G-6-183208 | Rockstar Production, LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 118K | 2.2M | May 2001 – Apr 2026 |
| Arco Fee Unit A-209 G-6-151808 | Atlas Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 109K | 4.57M | Jul 1994 – Mar 2026 |
| Arco Fee Unit A-232 G-6-163061 | Rockstar Production, LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 105K | 2.02M | Dec 1996 – Apr 2026 |
| Arco Fee Unit G-6-147217 | Bonfire Operating LLC only | Brookeland (Austin Chalk, 8800) | Newton | 1 | 105K | 1.61M | Oct 1993 – Jan 2002 |
| Texaco Fee Unit 4 O-6-13154 | Texaco E & P Inc. only | Brookeland (Austin Chalk, 8800) | Newton | 1 | 104K | 1.21M | Feb 1993 – Jan 1995 |
| Lampe-McAfee Unit O-3-21378 | Redbud E & P, Inc. only | Giddings (Austin Chalk-3) | Fayette | 1 | 90K | 1.27M | Jan 1993 – Apr 2026 |
| Arco Fee Unit A-580 G-6-159394 | Bonfire Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 90K | 3.31M | May 1996 – Apr 2015 |
| Arco - Fee Unit a - 243 G-6-152327 | Atlas Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 81.8K | 5.16M | Oct 1994 – Mar 2026 |