| Hubberd O-1-16026 | Trinity Operating (Usg), LLC only | Eagleville (Eagle Ford-1) | McMullen | 13 | 2.32M | 2.44M | Jul 2012 – Aug 2026 |
| Hubberd 'A' O-1-16016 | Trinity Operating (Usg), LLC only | Eagleville (Eagle Ford-1) | McMullen | 3 | 528K | 598K | Jul 2012 – Aug 2026 |
| Hubberd, Mary C. -A- O-4-1573 | Hilcorp Energy Company only | Loma Novia | Duval | 16 | 381K | 111 | by Jan 1993 – May 2026 |
| Hubberd G-1-298041 | Trinity Operating (Usg), LLC only | Eagleville (Eagle Ford-1) | McMullen | 1 | 181K | 233K | May 2014 – Aug 2026 |
| Hubberd, Mary C. -B- O-4-1537 | Hilcorp Energy Company only | Loma Novia | Duval | 10 | 59.5K | 111 | by Jan 1993 – Aug 2023 |
| Hubberd, Wm. O-4-1525 | Alacia Operating Company only | Loma Novia | Duval | 3 | 35.3K | 100 | by Jan 1993 – Jul 2003 |
| 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, Wm. O-4-1546 | Newman Operating Company only | Loma Novia | Duval | 6 | 21.8K | 261 | by Jan 1993 – Oct 2015 |
| Hubberd T G-4-167093 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 20.9K | 1.72M | Feb 1998 – Aug 2026 |
| Hubberd, William "D" O-4-11929 | Alacia Operating Company only | Loma Novia ( 3RD Sand) | Duval | 2 | 17.1K | 98 | by Jan 1993 – Jan 2004 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| Hubberd G-4-149470 | Columbus Energy, LLC only | Liz (9200) | Webb | 1 | 6.9K | 2.56M | May 1994 – Aug 2026 |
| Martinez-Barrera G.U. G-4-196934 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 6.64K | 2.82M | Aug 2003 – Aug 2026 |
| Hubberd G-4-148732 | Houston Exploration Company, The only | Liz (9200) | Webb | 1 | 6.61K | 2.33M | Mar 1994 – Dec 2001 |
| Hubberd, William C G-4-63360 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 6.44K | 909K | by Jan 1993 – Aug 2015 |
| Charles Alexander D G-4-170403 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 6.09K | 2.67M | Sep 1998 – Aug 2026 |
| Hubberd, William C 3 G-4-189991 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 6.04K | 1.45M | Apr 2002 – Aug 2026 |
| Hubberd G-4-154061 | Columbus Energy, LLC only | Liz (9200) | Webb | 1 | 5.92K | 699K | Feb 1995 – Aug 2026 |
| Hubberd "C-East" G-4-213499 | Hilcorp Energy Company only | Hubberd (Lobo) | Webb | 1 | 5.47K | 1.96M | Aug 2005 – Nov 2024 |
| Bruni Mineral Trust "B" G-4-209818 | Hilcorp Energy Company only | Hubberd (Lobo) | Webb | 1 | 5.3K | 2.16M | Mar 2005 – Aug 2026 |
| Hubberd "B" G-4-210522 | Hilcorp Energy Company only | Liz (8100) | Webb | 1 | 5.26K | 976K | Apr 2005 – Jun 2023 |
| Hubberd, William "C2" G-4-196175 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 5.26K | 1.07M | Apr 2003 – Jul 2017 |
| Hubberd G-4-185875 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 5.14K | 3.48M | Oct 2001 – Aug 2026 |
| Hubberd G-4-155149 | Columbus Energy, LLC only | Liz (8100) | Webb | 1 | 5.04K | 2.24M | Aug 1995 – Aug 2026 |
| Hubberd G-4-149895 | Columbus Energy, LLC only | Liz (9200) | Webb | 1 | 4.34K | 3.4M | Jun 1994 – Aug 2026 |
| Hubberd, William "C1" G-4-143493 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 4.33K | 1.4M | by Jan 1993 – Aug 2026 |
| Hubberd, William -D- G-4-66465 | Columbus Energy, LLC only | Laredo (8080) | Webb | 1 | 4.27K | 1.39M | by Jan 1993 – Aug 2026 |
| Hubberd "B" G-4-189874 | Hilcorp Energy Company only | Laredo (Lobo) | Webb | 1 | 4.25K | 943K | May 2002 – Aug 2026 |
| Alexander, Charles G-4-192783 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 4.25K | 2.77M | Oct 2002 – Aug 2026 |
| Hubberd G-4-214173 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 4.25K | 1.54M | Oct 2005 – Aug 2026 |
| Hubberd G-4-184631 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 4.25K | 766K | Jun 2001 – Aug 2026 |