| Santa FE Ranch G-4-199607 | Hughes, Dan A. Company, L.P. | Tom East (13,800) | Brooks | 1 | 9.32K | 5.74M | Jan 2004 – May 2007 |
| Santa FE Ranch Mula Pasture G-4-282022 | Hughes, Dan A. Company, L.P. | Stillman (Deep Cons.) | Kenedy | 1 | 8.9K | 3.08M | Jan 2017 – Aug 2026 |
| Santa FE Ranch "B" G-4-217177 | Hughes, Dan A. Company, L.P. | Santa FE (Zone 4) | Brooks | 1 | 8.38K | 1.99M | May 2005 – Jun 2017 |
| Santa FE Ranch "B" G-4-210427 | Hughes, Dan A. Company, L.P. | Santa FE, South (Zone 3) | Brooks | 1 | 7.72K | 1.43M | May 2005 – Dec 2024 |
| Santa FE Ranch Julian Pasture G-4-247537 | Hughes, Dan A. Company, L.P. | Ball Ranch (Vicksburg Cons.) | Kenedy | 1 | 7.65K | 3.79M | Apr 2009 – May 2024 |
| Bennett, J. M. "B" O-4-11866 | Hughes, Dan A. Company, L.P. | Bennett Ranch (3RD Cook Mtn.) | Duval | 1 | 7.51K | 7.78K | by Jan 1993 – Sep 2018 |
| Brinkoeter Partners, Ltd. "B" G-2-185675 | Hughes, Dan A. Company, L.P. | Cosden (Wilcox 10,170) | Bee | 1 | 6.15K | 351K | Jun 2001 – Aug 2006 |
| Chandler G-2-220897 | Hughes, Dan A. Company, L.P. | Caesar, South (9600) | Bee | 1 | 5.26K | 662K | May 2006 – Nov 2010 |
| Santa FE Ranch Mula Pasture G-4-280852 | Hughes, Dan A. Company, L.P. | Stillman (Deep Cons.) | Kenedy | 1 | 4.66K | 494K | Jun 2016 – Dec 2021 |
| K.H.B. "70" G-4-165821 | Hughes, Dan A. Company, L.P. | Berry R. Cox (Wilcox L-1) | Webb | 1 | 4.46K | 14M | Oct 1997 – Apr 2007 |
| W.L. Carter O-1-15805 | Hughes, Dan A. Company, L.P. | Pearsall (Buda Lime) | Frio | 1 | 4.25K | 8.26K | Mar 2011 – Dec 2013 |
| Santa FE Ranch G-4-264564 | Hughes, Dan A. Company, L.P. | Tom East (N-68) | Brooks | 1 | 4.01K | 415K | Mar 2015 – Jul 2019 |
| Santa FE Ranch G-4-209862 | Hughes, Dan A. Company, L.P. | Santa FE (12450) | Brooks | 1 | 3.52K | 715K | Mar 2005 – Sep 2023 |
| Santa FE Ranch Julian Pasture G-4-248524 | Hughes, Dan A. Company, L.P. | Ball Ranch (Vicksburg Cons.) | Kenedy | 1 | 3.45K | 2.46M | Jun 2009 – Jun 2018 |
| Schmelzer Unit O-4-13469 | Hughes, Dan A. Company, L.P. | El Sauz Ranch (6960) | Willacy | 1 | 3.36K | 11.3K | Jan 2008 – Feb 2016 |
| Johnston G-2-184509 | Hughes, Dan A. Company, L.P. | Fortitude (Pettus 4110) | Bee | 1 | 3.22K | 592K | Jun 2001 – Feb 2007 |
| Reilly Heirs G-4-262660 | Hughes, Dan A. Company, L.P. | La Grulla (Yegua 7100) | Starr | 1 | 3.12K | 268K | Aug 2011 – Dec 2015 |
| Coates "C" G-4-194776 | Hughes, Dan A. Company, L.P. | Los Torritos, N. | Hidalgo | 1 | 2.74K | 436K | Apr 2003 – Dec 2006 |
| McKinney O-1-17675 | Hughes, Dan A. Company, L.P. | Pearsall (Buda, S.) | Frio | 1 | 2.57K | 0 | Feb 2013 – Nov 2013 |
| Santa FE Ranch G-4-290447 | Hughes, Dan A. Company, L.P. | Santa FE (12450) | Brooks | 1 | 2.44K | 98.8K | Mar 2021 – Aug 2026 |
| Fulbright, J.E. "G" G-4-147422 | Hughes, Dan A. Company, L.P. | Taquachie (Hinnant #3) | Zapata | 1 | 2.4K | 959K | Dec 1993 – Nov 2006 |
| Coates Energy Trust Gas Unit #1 G-4-178136 | Hughes, Dan A. Company, L.P. | Jeffress (Vicksburg T) | Hidalgo | 1 | 2.04K | 549K | Jul 2000 – Dec 2005 |
| Adams Gas Unit "D" G-4-141114 | Hughes, Dan A. Company, L.P. | El Mesquite (5200) | Webb | 1 | 1.98K | 146K | by Jan 1993 – Apr 2001 |
| Jank Gas Unit G-2-234207 | Hughes, Dan A. Company, L.P. | Slick (Wx. 12,200) | Goliad | 1 | 1.8K | 104K | Jul 2006 – Nov 2010 |
| Tijerina G-4-261620 | Hughes, Dan A. Company, L.P. | Bloomberg (Frio 3900) | Hidalgo | 1 | 1.75K | 386K | Jun 2011 – Sep 2015 |
| McKinley O-1-18232 | Hughes, Dan A. Company, L.P. | Pearsall (Buda, S.) | Frio | 1 | 1.65K | 0 | Jan 2013 – May 2013 |
| Bibbyray G-2-258653 | Hughes, Dan A. Company, L.P. | Cook (White, Lower) | De Witt | 1 | 1.61K | 45.5K | Oct 2010 – Jul 2013 |
| Santa FE Ranch G-4-182747 | Hughes, Dan A. Company, L.P. | Santa FE, East (7100) | Brooks | 1 | 1.58K | 51.6K | May 2001 – Jan 2002 |
| Garcia Land and Livestock G-4-261366 | Hughes, Dan A. Company, L.P. | La Grulla (Yegua 7100) | Starr | 1 | 1.49K | 121K | Mar 2011 – Dec 2014 |
| Dinn Mineral Trust G-4-199020 | Hughes, Dan A. Company, L.P. | Dinn, Deep (Wilcox 12,900) | Duval | 1 | 1.47K | 3.57M | Dec 2003 – Mar 2014 |
| Carter, W. L. O-1-15187 | Hughes, Dan A. Company, L.P. | Pearsall (Austin Chalk) | Frio | 2 | 1.26K | 0 | Nov 2010 – Feb 2011 |
| Milster Ranch G-2-207940 | Hughes, Dan A. Company, L.P. | Caesar, South (9600) | Bee | 1 | 1.1K | 50.5K | Nov 2004 – Sep 2005 |
| Schmelzer Unit O-4-13367 | Hughes, Dan A. Company, L.P. | El Sauz Ranch (6970) | Willacy | 1 | 1.01K | 427 | Apr 2006 – Sep 2006 |
| Coates Energy Trust Gas Unit #1 G-4-177382 | Hughes, Dan A. Company, L.P. | Jeffress, E. (Vicksburg O\p) | Hidalgo | 1 | 973 | 410K | May 2000 – Aug 2008 |
| Schmelzer Unit G-4-233958 | Hughes, Dan A. Company, L.P. | El Sauz Ranch (6960) | Willacy | 1 | 894 | 78.5K | Mar 2007 – Oct 2007 |
| J. E. Fulbright 'G' G-4-275297 | Hughes, Dan A. Company, L.P. | Glen, South (Wilcox 9200) | Zapata | 1 | 576 | 75K | Oct 2014 – Dec 2014 |
| Santa FE Ranch Mula Pasture G-4-293280 | Hughes, Dan A. Company, L.P. | Stillman (Shallow) | Kenedy | 1 | 535 | 66.5K | Jul 2022 – Feb 2025 |
| Lopez, Rufino & Josefa G.U. 4 G-4-151903 | Hughes, Dan A. Company, L.P. | Dan A. Hughes (7TH Hinnant, S.) | Jim Hogg | 1 | 526 | 11.9M | Nov 1994 – May 2021 |
| Lopez, Rufino & Josefa G-4-145011 | Hughes, Dan A. Company, L.P. | Dan A. Hughes (7TH Hinnant, SW.) | Zapata | 1 | 467 | 5.21M | Apr 1993 – May 2011 |
| Santa FE Ranch G-4-271341 | Hughes, Dan A. Company, L.P. | Wildcat | Brooks | 1 | 450 | 64.1K | Jul 2013 – Apr 2015 |
| Schulze, Herbert K. et Al G-4-226940 | Hughes, Dan A. Company, L.P. | Brayton, N. (Vicksburg 9400) | Nueces | 1 | 369 | 9.21K | May 2007 – Nov 2007 |
| Fulbright, J. E. "G" G-4-142922 | Hughes, Dan A. Company, L.P. | Dan A. Hughes, W. (7TH Hinnant) | Zapata | 1 | 350 | 2.06M | by Jan 1993 – Jul 2016 |
| Eberstadt G-2-202647 | Hughes, Dan A. Company, L.P. | Caesar, South (Wilcox 9770) | Bee | 1 | 260 | 94.3K | Mar 2004 – Oct 2006 |
| McKinney-Johnston G-2-219382 | Hughes, Dan A. Company, L.P. | McDan (Yegua) | Bee | 1 | 164 | 26.3K | Jan 2006 – May 2006 |
| Canales, Elg O-4-11089 | Hughes, Dan A. Company, L.P. | Mestena Grande (5230) | Jim Hogg | 1 | 130 | 2.56K | by Jan 1993 – Mar 1993 |
| Grissom G-2-196197 | Hughes, Dan A. Company, L.P. | Grissom (Pettus) | Bee | 1 | 124 | 164K | Jun 2003 – Jan 2007 |
| Coates Energy Trust Gas Unit "1" G-4-246930 | Hughes, Dan A. Company, L.P. | Jeffress (Vicksburg M) | Hidalgo | 1 | 124 | 9.11K | Jan 2009 – Mar 2010 |
| Santa FE Ranch G-4-268614 | Hughes, Dan A. Company, L.P. | Tom East (N-68) | Brooks | 1 | 115 | 28.7K | Apr 2015 – May 2017 |
| Santa FE Ranch Julian Pasture G-4-247535 | Hughes, Dan A. Company, L.P. | Ball Ranch (Vicksburg Cons.) | Kenedy | 1 | 113 | 2.13M | May 2009 – May 2024 |
| Orts O-3-25863 | Hughes, Dan A. Company, L.P. | Giddings (Eagleford) | Bastrop | 1 | 112 | 0 | Jul 2011 – Jul 2012 |