| Hubbard Enterprises 57-T1-32 G-10-273718 | BPX Operating Company only | Phantom (Wolfcamp) | Reeves | 1 | 273K | 4.2M | Dec 2013 – Aug 2026 |
| Hubbard a Unit G-1-297224 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 221K | 458K | Apr 2015 – Aug 2026 |
| Hubbard B Unit G-1-297225 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 220K | 479K | Apr 2015 – Aug 2026 |
| Hubbard a Unit G-1-297222 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 195K | 495K | Apr 2015 – Aug 2026 |
| Hubberd G-1-298041 | Trinity Operating (Usg), LLC only | Eagleville (Eagle Ford-1) | McMullen | 1 | 181K | 233K | May 2014 – Aug 2026 |
| Hubbard a Unit G-1-297792 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 174K | 951K | Feb 2013 – Aug 2026 |
| Hubbard C Unit G-1-297795 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 160K | 1.15M | Feb 2013 – Aug 2026 |
| Schubert Unit G-1-294139 | Gulftex Energy, LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 133K | 732K | Sep 2022 – Jul 2026 |
| Hubbard B Unit G-1-297793 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 116K | 1.13M | Feb 2013 – Aug 2026 |
| Hubert Stone 01 G-1-265976 | Crescent Energy Operating, LLC only | Hawkville (Eagleford Shale) | McMullen | 1 | 87.8K | 381K | Jun 2011 – Aug 2026 |
| Hubbard Ranch G-1-271051 | Verdun Oil & Gas LLC only | Hawkville (Eagleford Shale) | La Salle | 1 | 72.9K | 584K | Mar 2013 – Aug 2026 |
| Hubert Unit G-3-149508 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Washington | 1 | 71.2K | 3.24M | Mar 1994 – Jan 2015 |
| Hubbard Ranch G-1-270436 | Verdun Oil & Gas LLC only | Hawkville (Eagleford Shale) | La Salle | 1 | 67.5K | 560K | Mar 2013 – Aug 2026 |
| Champion International Corp. G-3-156952 | Hubco Exploration Inc. only | Sabine Tram (Wilcox 2) | Newton | 1 | 50.3K | 301K | Oct 1995 – Feb 2000 |
| Hubbard B Unit G-13-262339 | BKV Barnett II, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 38.2K | 921K | Jul 2011 – Aug 2026 |
| Hubbard Ranch G-1-260060 | Verdun Oil & Gas LLC only | Hawkville (Eagleford Shale) | La Salle | 1 | 37.6K | 526K | Nov 2010 – Aug 2026 |
| Hubbard a Unit G-13-256018 | BKV Barnett II, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 25.4K | 1.41M | Jul 2010 – Aug 2026 |
| Hubberd, William "C1" G-4-146480 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 24.9K | 4.37M | Apr 1993 – Aug 2026 |
| Hubberd, William A G-4-167287 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 24.9K | 2.96M | Feb 1998 – Aug 2026 |
| Hubberd, William "C1" G-4-146561 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 24.4K | 6.23M | Jul 1993 – Aug 2026 |
| Hubberd, William C 3 G-4-146666 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 22K | 5.18M | Sep 1993 – Aug 2026 |
| Hubberd T G-4-167093 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 20.9K | 1.72M | Feb 1998 – Aug 2026 |
| Hubbard C Unit G-13-262218 | BKV Barnett II, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 20K | 1.49M | Jul 2011 – Aug 2026 |
| Schoolfield G-4-169587 | Huber, J. M., Corporation only | Rich Hurt (Wx. 4TH Hinnant) | Duval | 1 | 18.2K | 1.13M | Jul 1998 – Mar 2003 |
| Wolff G-3-148812 | Huber Energy L.P. only | Giddings (Austin Chalk, Gas) | Washington | 1 | 17.1K | 920K | Dec 1993 – Mar 2004 |
| Forthuber Gas Unit G-4-223303 | Anderson Oil Ltd. only | Los Torritos, N. | Hidalgo | 1 | 16.6K | 1.08M | Jul 2006 – Sep 2024 |
| Hubberd, William D G-4-151472 | Awp Operating Company only | Hubberd (Lobo) | Webb | 1 | 16K | 1.56M | Oct 1994 – May 2001 |
| Hubberd, William "B2" G-4-191715 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 13.2K | 3M | Jul 2002 – Aug 2026 |
| Hubberd, William "C" G-4-189398 | Columbus Energy, LLC only | Liz (8100) | Webb | 1 | 13.2K | 2.18M | Mar 2002 – Aug 2026 |
| Hubberd, William "D3" G-4-191411 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 12.8K | 4.48M | May 2002 – May 2026 |
| Hubbard G-10-157463 | Endeavor Energy Resources L.P. only | Saint Lawrence (Strawn) | Glasscock | 1 | 12.6K | 479K | Feb 1996 – Jul 2020 |
| Bruni Mineral Trust "B" G-4-197250 | Hilcorp Energy Company only | Hubberd (Lobo) | Webb | 1 | 12.3K | 4.25M | Jul 2003 – Aug 2026 |
| Hubberd "B" G-4-213103 | Hilcorp Energy Company only | Hubberd (Lobo) | Webb | 1 | 12.1K | 1.42M | Mar 2005 – Aug 2026 |
| Hubberd "B" G-4-211342 | Hilcorp Energy Company only | Liz (8200) | Webb | 1 | 12K | 2.01M | May 2005 – Aug 2026 |
| Hubberd G-4-149907 | Columbus Energy, LLC only | Liz (9200) | Webb | 1 | 11.8K | 1.6M | Jun 1994 – Aug 2026 |
| Hubberd "B" G-4-208267 | Hilcorp Energy Company only | Hubberd (Lobo) | Webb | 1 | 11.1K | 2.75M | Dec 2004 – Aug 2026 |
| Hubberd, Wm. "C-1" G-4-210773 | Columbus Energy, LLC only | Liz (9200) | Webb | 1 | 10.5K | 2.83M | Apr 2005 – Aug 2026 |
| Wm. Hubberd A2 G-4-167805 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 10.2K | 1.26M | Apr 1998 – Aug 2026 |
| Hubbard Gas Unit # 1 G-6-165167 | Faulconer Energy, LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 9.51K | 1.43M | Aug 1997 – Aug 2026 |
| Hubberd "B" G-4-187911 | Hilcorp Energy Company only | Hubberd (Lobo) | Webb | 1 | 9.46K | 1.8M | Feb 2002 – Aug 2026 |
| Hubberd , William "A" G-4-66694 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 8.78K | 2.86M | by Jan 1993 – Aug 2026 |
| Hubberd Estate F G-4-135920 | Varas Energy Operating Company, only | La Perla (Lobo Cons.) | Webb | 1 | 8.56K | 1.16M | by Jan 1993 – Aug 2026 |
| Hubbard Gas Unit #1 G-6-143514 | Faulconer Energy, LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 8.51K | 2.27M | by Jan 1993 – Aug 2026 |
| Hubbard Gas Unit #1 G-6-142452 | Faulconer Energy, LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 8.36K | 2.14M | by Jan 1993 – Aug 2026 |
| Hubberd, William G-4-92268 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 8.16K | 942K | by Jan 1993 – Aug 2026 |
| Hubberd Trust G-4-153621 | Hilcorp Energy Company only | Liz (9200) | Webb | 1 | 8.07K | 1.17M | Feb 1995 – Aug 2026 |
| Johnson, Hubre G-6-223811 | Ursus Oil and Gas only | Rosewood (Cotton Valley) | Upshur | 1 | 7.86K | 575K | Nov 2006 – Jul 2026 |
| Hubberd Estate A G-4-141057 | Varas Energy Operating Company, only | La Perla (Lobo Cons.) | Webb | 1 | 7.74K | 1.43M | by Jan 1993 – Aug 2026 |
| Garner-Schubert G-4-274928 | Escondido Resources Oper Co, LLC only | Owen (Olmos) | Webb | 1 | 7.1K | 1.43M | May 2014 – Aug 2026 |
| Gill G-14-185511 | Huber, J. M., Corporation only | Miami Bluffs (Simpson) | Roberts | 1 | 6.98K | 140K | Jul 2001 – Oct 2002 |