| Staggs-State G-4-147694 | Picoso (Wilcox 7600) | Webb | 1 | 5.4K | 1.9M | Apr 1993 – Dec 2023 |
| Staggs, J. G-4-158844 | Picoso (Wilcox 7600) | Webb | 1 | 3.63K | 1.27M | May 1996 – Dec 2023 |
| Staggs-State G-4-149617 | Picoso, East (Consolidated) | Webb | 1 | 999 | 290K | Apr 1994 – Dec 2023 |
| Staggs State G-4-153943 | Picoso, East (Consolidated) | Webb | 1 | 229 | 166K | Feb 1995 – Dec 2023 |
| Las Clavellinas Ranch 36 G-4-165084 | Zapata, SE. (Wilcox) | Zapata | 1 | 18.9K | 4.91M | Oct 1997 – Jul 2023 |
| Uribe G-4-232152 | Exsun (Lobo Cons.) | Zapata | 1 | 4.52K | 1.67M | Oct 2007 – Jul 2023 |
| Uribe G-4-236358 | Exsun (Lobo Cons.) | Zapata | 1 | 2.41K | 656K | Feb 2008 – Jul 2023 |
| Uribe G-4-241976 | Exsun (Lobo Cons.) | Zapata | 1 | 1.06K | 449K | Jul 2008 – Jul 2023 |
| Hellen, C.W. Gas Unit G-4-71768 | Romeo, S. (2660) | Jim Hogg | 1 | 9 | 605K | Jan 1993 – Mar 2023 |
| Hellen, C. W. G-4-62761 | Romeo, S. (Govt Wells) | Jim Hogg | 1 | 0 | 67.6K | May 1995 – Mar 2023 |
| Gutierrez, Raquel F G-4-197063 | Haynes (Middle Wilcox Cons.) | Zapata | 1 | 802 | 1.47M | Sep 2003 – May 2022 |
| Gutierrez, Raquel G-4-195934 | Haynes (Middle Wilcox Cons.) | Zapata | 1 | 135 | 2.09M | Jul 2003 – May 2022 |
| Gutierrez, Mobil H. G-4-164016 | Charco (9200) | Zapata | 1 | 690 | 546K | Jul 1997 – Jul 2020 |
| Gutierrez, Higinio Jr G-4-215141 | Charco (9200) | Zapata | 1 | 608 | 483K | Dec 2005 – Jul 2020 |
| Gutierrez, Higinio Jr. G-4-215139 | Charco (9200) | Zapata | 1 | 22 | 415K | Aug 2005 – Jul 2020 |
| Aviators Gas Unit G-4-104990 | George Buck (4TH Hinnant) | Webb | 1 | 10.1K | 792K | Jan 1993 – May 2017 |
| Munoz Unit G-4-141972 | Capricorn (First Queen City) | Starr | 1 | 7.22K | 922K | Jan 1993 – Jan 2017 |
| El Milagro "B" G-4-233795 | Lopeno (Consolidated) | Zapata | 1 | 807 | 1.18M | Jan 2008 – Feb 2016 |
| El Milagro "B" Bajo (Shallow) G-4-244176 | Lopeno ( Reklaw B) | Zapata | 1 | 588 | 875K | Aug 2008 – Feb 2016 |
| El Milagro "B" G-4-232961 | Lopeno (Consolidated) | Zapata | 1 | 215 | 1.32M | Nov 2007 – Feb 2016 |
| King Edmunds G-4-65233 | Rincon, North (Frio B) | Starr | 1 | 0 | 319K | Mar 1993 – Mar 2012 |
| Vaquillas Ranch Co., Ltd. G-4-138100 | Gutierrez (Rosenberg Sand) | Webb | 1 | 3 | 102K | Jan 1993 – Oct 2011 |
| El Milagro "B" G-4-235282 | Lopeno (Consolidated) | Zapata | 1 | 161 | 851K | Jan 2008 – Jul 2011 |
| El Milagro "B" G-4-233632 | Lopeno (Consolidated) | Zapata | 1 | 170 | 721K | Nov 2007 – Dec 2010 |
| West, George Estate G-2-83676 | George West, West (8300) | Live Oak | 1 | 8.51K | 587K | Jan 1993 – Mar 2009 |
| Munoz G. U. G-4-253395 | Wildcat | Starr | 1 | 0 | 8.23K | Jan 2008 – Mar 2009 |
| Miller, M. M. G-4-68658 | Longhorn, Middle (5800) | Duval | 1 | 360 | 88.7K | Apr 1995 – Aug 2005 |
| Munoz Unit G-4-149909 | Capricorn (First Queen City) | Starr | 1 | 658 | 51.7K | May 1994 – Oct 2001 |
| Munoz Unit G-4-149102 | Capricorn (First Queen City) | Starr | 1 | 180 | 40.3K | Mar 1994 – Apr 2001 |
| Benavides, Rosa V. 1927 G-4-124045 | Contempo (Lobo) | Webb | 1 | 189 | 12.3K | Jan 1993 – Aug 1995 |
| Frost Trust -17- G-4-217216 | De Spain (Queen City, 1ST) | Webb | 1 | 0 | 0 | — |
| Aviator "B" G-4-178390 | Aviators | Webb | 1 | 0 | 0 | — |