| 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 |
| 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 |
| 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 |
| 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 |
| 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 A-210 G-6-151506 | Atlas Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 130K | 3.68M | Apr 1994 – Mar 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 |
| 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 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 |
| Arco Fee Unit A-216 G-6-161032 | Atlas Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 74.9K | 2.98M | Jul 1996 – Aug 2023 |
| Arco Fee Unit A-580 G-6-245707 | Arcadia Energy Resources, LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 73.3K | 2.37M | Oct 2008 – Apr 2026 |
| Vastar Fee Unit A-109 G-6-189592 | Atlas Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 72.6K | 1.81M | Dec 2001 – Mar 2026 |
| Arco Fee Unit A-253 G-6-164325 | Atlas Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 71.7K | 2.02M | Oct 1996 – Aug 2025 |
| Arco Fee Unit A-920 G-6-153986 | Bonfire Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 67K | 1.69M | Jul 1994 – Apr 2015 |
| Arco Fee Unit A-252 G-6-156391 | Atlas Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 56.9K | 3.87M | Jun 1995 – Mar 2026 |
| Arco Fee Unit A-250 G-6-156987 | Rme Petroleum Company only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 51.1K | 1.33M | Sep 1995 – Apr 2001 |
| Vastar Fee Unit A-215 G-6-175042 | Bonfire Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 50.2K | 2.37M | Aug 1999 – Jul 2005 |
| Vastar Fee Unit A-311 G-6-188760 | Bonfire Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 50.1K | 900K | Feb 2002 – Mar 2015 |
| Vastar Fee Unit A-15 G-6-184869 | Atlas Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 49.7K | 2.8M | Jul 2001 – Mar 2026 |
| Vastar Fee Unit A-229 G-6-182865 | Rme Petroleum Company only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 47K | 563K | Mar 2001 – Feb 2002 |
| Vastar Fee Unit A-910 G-6-177403 | Atlas Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 43.8K | 3.56M | Mar 2000 – Mar 2026 |
| Arco Fee Unit A-214 G-6-163003 | Bonfire Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 39.4K | 1.33M | Jan 1997 – Sep 2004 |
| Arco Fee Unit A-222 G-6-246168 | Arcadia Energy Resources, LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 38.5K | 772K | Feb 2009 – Apr 2026 |
| Arco Fee Unit A-240 G-6-163347 | Atlas Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 36.2K | 2.81M | Apr 1997 – Mar 2026 |
| Vastar Fee Unit A-913 G-6-189764 | Bonfire Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 34.8K | 917K | Mar 2002 – Apr 2015 |
| Arco Fee Unit A-908 G-6-149072 | Hereford, J. A. Industries, Inc. only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 33.3K | 1.11M | Nov 1993 – May 2015 |
| Arco Fee Unit A-15 G-6-163658 | Union Pacific Resources Company only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 31.5K | 1.34M | Mar 1997 – Jul 1999 |
| Vastar Fee Unit A-229 O-6-14149 | Enervest Operating, L.L.C. only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 27.2K | 328K | Mar 2002 – Nov 2004 |
| Arco Fee Unit A-920 G-6-245692 | Atlas Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 21.2K | 602K | Dec 2008 – Mar 2026 |
| Arco Fee Unit A-988 G-6-163345 | Bonfire Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 19.3K | 1.84M | Oct 1996 – May 2015 |
| Arco Fee Unit A-989 O-6-13808 | Kidd Production Co. only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 17.7K | 285K | Aug 1997 – Dec 1998 |
| Arco Fee Unit A-990 O-6-13854 | Kidd Production Co. only | Brookeland (Austin Chalk, 8800) | Jasper | 2 | 285 | 8.2K | Sep 1998 – Dec 2000 |
| Arco Fee Unit A-241 O-6-15884 | Atlas Operating LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 171 | 0 | Apr 2022 – Mar 2025 |
| Vastar Fee Unit A-251 O-6-13967 | Rme Petroleum Company only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 0 | 0 | — |