| Goldsmith-Landreth/San Andres/UT O-10-17491 | Atlas Operating LLC | Goldsmith | Ector | 434 | 10.3M | 11.9M | by Jan 1993 – Aug 2026 |
| Blackstone Minerals A-342 G-6-164322 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 219K | 1.74M | Dec 1996 – Jun 2026 |
| Kirkland, P. J. O-6-1368 | Atlas Operating LLC | Quitman | Wood | 2 | 172K | 40.1K | by Jan 1993 – Aug 2026 |
| Donner Unit G-6-147163 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Newton | 1 | 163K | 4.92M | May 1993 – Apr 2026 |
| Champion Int'l. Unit A-1148 O-6-13406 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Newton | 2 | 158K | 1.06M | Mar 1995 – Jun 2026 |
| Donner-Brown Unit A-148 G-6-156716 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Newton | 1 | 149K | 2.72M | Apr 1995 – Jun 2026 |
| Crew Unit A-342 O-6-13872 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 2 | 146K | 1.75M | Jul 1998 – May 2026 |
| Arco Fee Unit A-210 G-6-151506 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 130K | 3.68M | Apr 1994 – Jun 2026 |
| Temple-Inland Forest Unit A-41 G-6-164895 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 116K | 1.66M | May 1997 – Jun 2026 |
| Arco Fee Upr A-19 O-6-13809 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 114K | 864K | Dec 1997 – Mar 2025 |
| Arco Fee Unit A-209 G-6-151808 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 109K | 4.57M | Jul 1994 – Jun 2026 |
| Angelina Unit A-19 G-6-180092 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 103K | 2.02M | Jun 2000 – Jun 2026 |
| Seaboard Wright O-11-3596 | Atlas Operating LLC | Levelland | Cochran | 4 | 98.4K | 381K | by Jan 1993 – Aug 2026 |
| Arco Fee A-910 G-6-155817 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 91K | 3.33M | Jun 1995 – Jun 2026 |
| Wright, D. S. "C" O-11-65311 | Atlas Operating LLC | Levelland | Cochran | 6 | 89.8K | 353K | by Jan 1993 – Jul 2024 |
| Champion Int'l. A-143 O-6-14041 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Newton | 1 | 88.5K | 854K | Sep 2000 – Jun 2026 |
| Arco - Fee Unit a - 243 G-6-152327 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 81.8K | 5.16M | Oct 1994 – Apr 2026 |
| Kirkland-Harris O-6-1364 | Atlas Operating LLC | Quitman | Wood | 2 | 80K | 46.7K | by Jan 1993 – Jun 2015 |
| Arco Fee "a" Unit A-920 G-6-160995 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 76.4K | 2.25M | Mar 1996 – Jun 2026 |
| Arco Fee Unit A-216 G-6-161032 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 74.9K | 2.98M | Jul 1996 – Aug 2023 |
| Pearl Unit A-340 G-6-168247 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 73.8K | 1.92M | Jan 1998 – Jun 2026 |
| Vastar Fee Unit A-109 G-6-189592 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 72.7K | 1.81M | Dec 2001 – Jun 2026 |
| Arco Fee Unit A-253 G-6-164325 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 71.7K | 2.02M | Oct 1996 – Aug 2025 |
| Slaughter, George M. III O-11-65043 | Atlas Operating LLC | Levelland | Hockley | 3 | 71.4K | 67.4K | by Jan 1993 – Aug 2026 |
| Wilson O-14-6528 | Atlas Operating LLC | Lips (Cleveland) | Roberts | 1 | 71.4K | 1.58M | Feb 1993 – Jan 2020 |
| Hobbs Unit A-19 O-6-14154 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Newton | 1 | 67.3K | 975K | Apr 2002 – Jun 2026 |
| Blackstone Unit A-86 O-6-13912 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Newton | 2 | 66.6K | 342K | Mar 1999 – May 2026 |
| Deloache, James I. O-11-64548 | Atlas Operating LLC | Levelland | Hockley | 7 | 65.5K | 48.8K | by Jan 1993 – Aug 2026 |
| Ivey O-11-65067 | Atlas Operating LLC | Levelland | Hockley | 2 | 63.6K | 1.53K | by Jan 1993 – Aug 2026 |
| Temple Industries Unit G-6-204503 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 59.7K | 989K | Jun 2003 – Aug 2025 |
| Spitler O-11-64503 | Atlas Operating LLC | Levelland | Hockley | 6 | 58.7K | 3.19K | by Jan 1993 – Aug 2026 |
| Arco Fee Unit A-252 G-6-156391 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 57K | 3.87M | Jun 1995 – May 2026 |
| Kirkland, P. J. O-6-1410 | Atlas Operating LLC | Quitman (Eagle Ford) | Wood | 2 | 56.2K | 672 | by Jan 1993 – Aug 2026 |
| Kirkland and Kirkland O-6-1365 | Atlas Operating LLC | Quitman | Wood | 2 | 50.1K | 15K | by Jan 1993 – Aug 2026 |
| Vastar Fee Unit A-15 G-6-184869 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 49.9K | 2.83M | Jul 2001 – Jun 2026 |
| Stanley O-11-63766 | Atlas Operating LLC | Levelland | Hockley | 2 | 49.1K | 869 | by Jan 1993 – Aug 2026 |
| Blackstone Unit A-293 O-6-13667 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Newton | 1 | 48.6K | 101K | Jan 1997 – Jun 2026 |
| Stanley "A" O-11-64677 | Atlas Operating LLC | Levelland | Hockley | 2 | 45.5K | 1.13K | by Jan 1993 – Aug 2026 |
| Deloache, J. I. NCT-3 O-11-64138 | Atlas Operating LLC | Levelland | Hockley | 3 | 44.4K | 16.3K | by Jan 1993 – Aug 2026 |
| Vastar Fee Unit A-910 G-6-177403 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 43.9K | 3.57M | Mar 2000 – Jun 2026 |
| Phillips O-11-61415 | Atlas Operating LLC | Levelland (Wichita-Albany) | Hockley | 1 | 41.9K | 2.36K | by Jan 1993 – Aug 2026 |
| Blackstone Unit A-897 O-6-13906 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Newton | 1 | 41.6K | 334K | Mar 1999 – May 2026 |
| Donner Brown Unit A-1006 G-6-178337 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 40.1K | 1.66M | Apr 2000 – Jun 2026 |
| Elrick O-14-4315 | Atlas Operating LLC | Paul Harbaugh (Cleveland) | Roberts | 1 | 39.4K | 224K | Sep 1999 – May 2020 |
| Wright, D S O-11-67409 | Atlas Operating LLC | Levelland | Cochran | 4 | 37.6K | 132K | Jun 1995 – Aug 2026 |
| Temple Unit A-86 O-6-13904 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Newton | 1 | 36.8K | 167K | Mar 1999 – May 2026 |
| Arco Fee Unit A-240 G-6-163347 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 36.3K | 2.82M | Apr 1997 – Jun 2026 |
| Robertson-Mulholland O-9-10413 | Atlas Operating LLC | Price (Grayburg) | Reagan | 8 | 36.2K | 30.9K | by Jan 1993 – Aug 2026 |
| Martindale Unit A-15 G-6-191986 | Atlas Operating LLC | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 34.7K | 1.17M | Oct 2002 – Jun 2026 |
| Slaughter, George M O-11-65198 | Atlas Operating LLC | Levelland | Cochran | 1 | 30.8K | 402 | by Jan 1993 – Aug 2026 |