| Barker-Lentz G-6-255238 | Enpower Resources Inc. only | Bethany (Travis Peak 6300) | Harrison | 1 | 23.4K | 29.5K | Aug 2006 – Mar 2020 |
| Barker G-14-217269 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 20.6K | 1.01M | Mar 2006 – Aug 2026 |
| Barker G-14-213545 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 17.1K | 1.17M | Dec 2005 – Aug 2026 |
| Finney-Barker Unit G-2-270332 | Ensign Natural Resources II LLC only | De Witt (Eagle Ford Shale) | De Witt | 1 | 13.9K | 477K | May 2012 – May 2026 |
| Barker G-14-214017 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 13.7K | 1.18M | Nov 2005 – Aug 2026 |
| Barker G-14-199276 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 13.6K | 860K | Nov 2003 – Jul 2026 |
| Barker G-14-219450 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 13.4K | 723K | Jun 2006 – Aug 2026 |
| Barker G-14-227398 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 12.9K | 777K | Jan 2007 – Aug 2026 |
| Barker G-14-215718 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 12.3K | 931K | Feb 2006 – Aug 2026 |
| Barker G-14-228338 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 12.2K | 813K | Apr 2007 – Aug 2026 |
| Barker G-14-202524 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 12K | 858K | Apr 2004 – Aug 2026 |
| Barker G-14-214545 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 11.9K | 405K | Jan 2006 – Aug 2026 |
| Barker G-14-200251 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 11.8K | 608K | Jan 2004 – Aug 2026 |
| Barker G-14-212039 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 11.4K | 657K | Sep 2005 – Aug 2026 |
| Barker G-14-204302 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 10.4K | 541K | Jun 2004 – Aug 2026 |
| Barker G-14-223331 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 10.1K | 657K | Nov 2006 – Dec 2024 |
| Barker G-14-227933 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 9.96K | 789K | Mar 2007 – Aug 2026 |
| Barker G-14-222865 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 9.63K | 679K | Aug 2006 – Aug 2026 |
| Barker G-14-212038 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 9.5K | 527K | Aug 2005 – Aug 2026 |
| Barker G-14-227710 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 9.32K | 425K | Feb 2007 – Aug 2026 |
| Barker G-14-223096 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 9.21K | 964K | Sep 2006 – Aug 2026 |
| Barker G-14-190642 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 8.85K | 659K | Aug 2002 – Aug 2026 |
| Barker G-14-225369 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 8.79K | 479K | Jan 2007 – Apr 2026 |
| Barker G-14-208372 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 8.78K | 500K | Oct 2004 – Jun 2024 |
| Barker-Botter G-6-238083 | Valence Operating Company only | Oak Hill (Cotton Valley) | Harrison | 1 | 8.74K | 1.69M | Mar 2008 – Aug 2026 |
| Barker G-14-234789 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 8.33K | 633K | Dec 2007 – Aug 2026 |
| Barker G-14-208371 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 8.11K | 487K | Nov 2004 – Aug 2026 |
| Barker G-14-224071 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 8.03K | 445K | Nov 2006 – Aug 2026 |
| Barker G-14-224073 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 7.85K | 545K | Dec 2006 – Aug 2026 |
| Barker G-14-204301 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 7.72K | 387K | Jul 2004 – Aug 2026 |
| Barker G-14-221231 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 7.52K | 795K | Sep 2006 – Aug 2026 |
| Barker G-14-212993 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 7.28K | 732K | Oct 2005 – Aug 2026 |
| Barker G-14-209150 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 7.12K | 476K | Nov 2004 – Aug 2026 |
| Barker G-14-211804 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 4.94K | 588K | Aug 2004 – Aug 2026 |
| Barker G-13-198880 | Cooper Oil & Gas, LLC only | Newark, East (Barnett Shale) | Parker | 1 | 4.54K | 431K | Dec 2003 – Aug 2026 |
| Barker, C. W. G-14-98227 | Presidio Petroleum LLC only | Briscoe (Morrow) | Hemphill | 1 | 4.52K | 905K | by Jan 1993 – Nov 2011 |
| Barker-Simpson G-13-227659 | Formentera Operations LLC only | Newark, East (Barnett Shale) | Johnson | 1 | 1.86K | 1.03M | Dec 2006 – Aug 2026 |
| Barker-Simpson G-13-231257 | Formentera Operations LLC only | Newark, East (Barnett Shale) | Johnson | 1 | 747 | 1.37M | Jun 2007 – Dec 2023 |
| Walker, Hall (Barker) G-8-197239 | Braka Operating, L.L.C. only | North Ridge (Duffer) | Eastland | 1 | 726 | 262K | Aug 2003 – Dec 2024 |
| Barker Coffman Unit G-13-252344 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Somervell | 1 | 710 | 609K | Apr 2009 – Aug 2026 |
| Walker, Hall (Barker) G-8-154036 | Braka Operating, L.L.C. only | North Ridge (Duffer) | Eastland | 1 | 619 | 102K | Oct 1994 – Aug 2026 |
| Barker-Simpson G-13-233865 | Formentera Operations LLC only | Newark, East (Barnett Shale) | Johnson | 1 | 477 | 628K | Sep 2007 – May 2019 |
| Barker-Hope G-6-16675 | Topcat Oilfield Transport, LLC only | Scottsville, NW. (Page 6400) | Harrison | 1 | 469 | 84.3K | by Jan 1993 – Oct 2001 |
| Barker-Simpson G-13-249256 | Formentera Operations LLC only | Newark, East (Barnett Shale) | Johnson | 1 | 374 | 346K | Jan 2008 – Sep 2020 |
| Barker G-13-111861 | Oakridge Oil and Gas, LP only | Bryson (Congl., Middle) | Jack | 1 | 344 | 152K | by Jan 1993 – Apr 2013 |
| Barker Coffman Unit G-13-263467 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Somervell | 1 | 299 | 719K | Sep 2011 – Jan 2026 |
| Barker Coffman Unit G-13-262436 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Somervell | 1 | 275 | 340K | Sep 2011 – Aug 2026 |
| Barker, C.A. G-8-121012 | Royal Texan Resources Co. only | Oneal (Caddo) | Stephens | 1 | 216 | 26.3K | by Jan 1993 – Sep 2015 |
| Barker Coffman Unit G-13-263373 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Somervell | 1 | 212 | 1.32M | Sep 2011 – Aug 2026 |
| Barker-Lentz G-6-29334 | GMX Resources Inc. only | Bethany (Pettit) | Harrison | 1 | 191 | 116K | by Jan 1993 – Jul 2002 |