| Killam 299 G-1-181657 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 35.1K | 1.43M | Dec 2000 – May 2013 |
| Alderman G-1-186437 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 17.3K | 868K | Oct 2001 – Apr 2024 |
| Killam 299 G-1-172228 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 15.8K | 705K | Nov 1998 – Apr 2026 |
| Alderman G-1-188870 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 14.7K | 939K | Mar 2002 – Apr 2024 |
| Crisp, Willard E. 26 O-1-15041 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 12.5K | 228K | May 2008 – Apr 2026 |
| Killam G-1-170313 | Virtex Operating Company, Inc. only | Atlee (Olmos) | La Salle | 1 | 9.81K | 441K | Aug 1998 – Nov 2010 |
| Killam 299 G-1-176801 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 7.1K | 583K | Mar 2000 – Apr 2026 |
| Killam 299 G-1-182823 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 6.61K | 659K | Mar 2001 – Aug 2018 |
| VT Pge Mineral Prop., Ltd 298 G-1-199913 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 6.08K | 431K | Feb 2004 – Apr 2026 |
| Crisp, Willard E. 26 G-1-211702 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 5.88K | 519K | Aug 2005 – Mar 2026 |
| Alderman G-1-195833 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 5.8K | 524K | Jun 2003 – Apr 2026 |
| VT Killam & Gonzalez 299 G-1-195831 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 5.76K | 461K | Jul 2003 – Apr 2026 |
| VT Pge Mineral Prop., Ltd 298 G-1-199880 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 5.38K | 517K | Feb 2004 – Apr 2026 |
| Crisp, Willard E. 26 G-1-214726 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 5.19K | 352K | Dec 2005 – Apr 2024 |
| Killam 299 G-1-184933 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 5.12K | 788K | Jul 2001 – Apr 2026 |
| VT Killam & Gonzalez 299 G-1-196260 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 4.18K | 348K | Aug 2003 – Apr 2026 |
| Krause 299 G-1-175783 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 3.82K | 223K | Dec 1999 – Sep 2011 |
| VT Flores/Fouke G-1-200420 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 3.71K | 254K | Feb 2004 – Apr 2026 |
| VT Krause "D" G-1-116835 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 3.49K | 458K | Jan 1993 – Apr 2026 |
| Light, George III G-1-243842 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 3.43K | 369K | Sep 2008 – Apr 2026 |
| Crisp, Willard E. 26 G-1-225050 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 3.14K | 240K | Dec 2006 – Apr 2026 |
| Alderman G-1-196645 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 2.87K | 333K | Jul 2003 – Apr 2026 |
| VT Killiam & Gonzalez 299 G-1-198518 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 2.8K | 279K | Oct 2003 – Apr 2026 |
| Crisp, Willard E. 26 G-1-232775 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 2.4K | 147K | Sep 2007 – Apr 2024 |
| VT Flores/Fouke G-1-200794 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 2.23K | 263K | Apr 2004 – Apr 2026 |
| Killam 299 G-1-199471 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 2.12K | 273K | Oct 2003 – Sep 2011 |
| VT Killam & Gonzalez 299 G-1-196027 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 2.06K | 182K | Jul 2003 – Apr 2026 |
| VT Killam & Gonzalez 299 G-1-220376 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 2.04K | 287K | Sep 2006 – Apr 2026 |
| VT Killam & Gonzalez 299 G-1-196290 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 1.91K | 221K | Aug 2003 – Apr 2026 |
| VT Krause, A. L. Estate G-1-221545 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 1.79K | 308K | Oct 2006 – Apr 2026 |
| VT Killam & Gonzalez 299 G-1-197474 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 1.78K | 197K | Sep 2003 – Apr 2026 |
| Light, George III G-1-108682 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 1.72K | 201K | Jan 1993 – Jul 2025 |
| VT Burkholder, Nell Jones GU G-1-223623 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 1.39K | 302K | Oct 2006 – Apr 2026 |
| Killam 299 G-1-205675 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 1.2K | 289K | Oct 2004 – Apr 2026 |
| VT Holland Heirs Gas Unit G-1-243055 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 1.1K | 216K | Sep 2008 – Apr 2026 |
| Alderman G-1-197079 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 1.01K | 102K | Aug 2003 – Apr 2026 |
| VT Coleman Heirs A G-1-243064 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 982 | 189K | Mar 2009 – Apr 2026 |
| VT Burkholder, Nell Jones GU G-1-234007 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 887 | 254K | Feb 2008 – Apr 2026 |
| VT Burkholder, Nell Jones GU G-1-235223 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 835 | 405K | Feb 2008 – Apr 2026 |
| VT Krause, A. L. Estate G-1-225164 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 830 | 248K | May 2006 – Dec 2019 |
| Killam 299 G-1-199650 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 733 | 30.5K | Nov 2003 – Apr 2026 |
| Light, George III G-1-108555 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 726 | 105K | Jan 1993 – Apr 2026 |
| TV Burkholder, Nell Jones GU G-1-234006 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 725 | 277K | Feb 2008 – Apr 2026 |
| VT Burkholder G-1-243076 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 679 | 243K | Nov 2008 – Apr 2026 |
| VT Pge Mineral Prop., Ltd 298 G-1-204359 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 646 | 241K | Sep 2004 – Apr 2026 |
| VT Coleman Heirs G-1-243063 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 595 | 65.3K | Mar 2009 – Apr 2026 |
| VT Burkholder G-1-243363 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 590 | 251K | Nov 2008 – Apr 2026 |
| Dietert G-1-109548 | Starr Operating Company only | Atlee (Olmos) | La Salle | 1 | 471 | 8.41K | Oct 1993 – Jan 1996 |
| VT Burkholder, Nell Jones GU G-1-240108 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 403 | 125K | Apr 2008 – Apr 2026 |
| VT Burkholder G-1-244585 | Lewis Petro Properties, Inc. only | Atlee (Olmos) | La Salle | 1 | 333 | 175K | Nov 2008 – Jul 2024 |