| Billings B G-4-256253 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 2.91M | Mar 2010 – Jul 2026 |
| Benavides, Arturo-State G-4-200828 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 42.3K | Mar 2004 – Jul 2026 |
| Billings A G-4-188055 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 1.9M | Mar 2002 – Jul 2026 |
| Billings B G-4-185724 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 4.45M | Aug 2001 – Jul 2026 |
| Benavides FMT G-4-229572 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 198K | Jun 2007 – Jul 2026 |
| Benavides FMT G-4-239566 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 1.48M | Apr 2008 – Jul 2026 |
| Billings B G-4-252965 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 1.22M | Oct 2009 – Jul 2026 |
| Billings State Gas Unit G-4-191870 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 932K | Nov 2002 – Jul 2026 |
| Billings B G-4-194238 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 1.8M | Mar 2003 – Jul 2026 |
| Benavides FMT G-4-213824 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 2.8M | Sep 2005 – Jul 2026 |
| Slator Ranch G-4-219890 | Stirling (Wilcox Consolidated) | Webb | 1 | 0 | 6.53M | Mar 2006 – Jul 2026 |
| Alexander, Maureen G-4-282902 | Urebeno, South (Wilcox 5900) | Zapata | 1 | 0 | 14.2K | Oct 2017 – Jul 2026 |
| Billings A G-4-189376 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 3.89M | May 2002 – Jul 2026 |
| Billings B G-4-229091 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 1.87M | Jul 2007 – Jul 2026 |
| Benavides F.M.T. G-4-249545 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 539K | Jun 2009 – Jul 2026 |
| Benavides, Arturo-State G-4-249489 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 311K | May 2009 – Jul 2026 |
| Billings G-4-232290 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 582K | Oct 2007 – Jul 2026 |
| Billings B G-4-259274 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 741K | Nov 2010 – Jul 2026 |
| Billings B G-4-190231 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 3.65M | Jul 2002 – Jul 2026 |
| Billings B G-4-255692 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 3.99M | Jan 2010 – Jul 2026 |
| Billings B G-4-256289 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 3.5M | Apr 2010 – Jul 2026 |
| Benavides F.M.T. G-4-245806 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 272K | Nov 2008 – Jul 2026 |
| Benavides, Arturo-State G-4-209778 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 2.25M | May 2005 – Jul 2026 |
| Billings B G-4-193951 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 2.41M | Feb 2003 – Jul 2026 |
| Billings AB GU G-4-221389 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 4.33M | Jul 2006 – Jul 2026 |
| Billings B G-4-251270 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 204K | Jun 2009 – Jul 2026 |
| Benavides, Arturo-State G-4-230376 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 778K | Sep 2007 – Jul 2026 |
| Billings AB GU G-4-190933 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 2.24M | Sep 2002 – Jul 2026 |
| Benavides FMT G-4-206151 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 611K | Nov 2004 – Jul 2026 |
| DE Garcia, B. G. G-4-222478 | Rincon (Vicksburg Cons.) | Starr | 1 | 0 | 812K | Aug 2006 – Jul 2026 |
| Benavides FMT G-4-222345 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 1.33M | Aug 2006 – Jul 2026 |
| Van Scherpe, Peter G-4-199222 | Jeffress (Vicksburg U) | Hidalgo | 1 | 0 | 1.05M | Dec 2003 – Jul 2026 |
| Billings B G-4-186883 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 1.6M | Jan 2002 – Jul 2026 |
| Benavides, Arturo-St. G-4-246014 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 2.78M | Nov 2008 – Jul 2026 |
| Billings B G-4-189426 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 2.92M | Jun 2002 – Jul 2026 |
| Billings A G-4-196856 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 539K | Aug 2003 – Jul 2026 |
| Benavides F. M. T. G-4-233969 | Tiffany (Wilcox Carrizo) | Webb | 1 | 0 | 2.24M | Nov 2007 – Jul 2026 |
| Slick Estate -C- G-4-175988 | Borosa, E. (8270 Vicksburg) | Starr | 1 | 0 | 181K | Dec 1999 – Feb 2026 |
| Van Scherpe, Peter G-4-122994 | Jeffress (Vicksburg S) | Hidalgo | 1 | 0 | 484K | Jan 1993 – Feb 2026 |
| Alvarez-Hinojosa Gas Unit G-4-181606 | Rincon (Vicksburg Cons.) | Starr | 1 | 0 | 580K | Feb 2001 – Feb 2026 |
| Van Scherpe, Peter G-4-242206 | Jeffress (Vicksburg P) | Hidalgo | 1 | 0 | 108K | Aug 2008 – Feb 2026 |
| Yturria, L & L Co. -C- G-4-147242 | Flores (Vicksburg, Lower) | Hidalgo | 1 | 0 | 4.67M | Aug 1993 – Mar 2025 |
| Yturria L & L -B- O-4-12333 | Yturria, N.E. (Frio 4500) | Starr | 1 | 6.35K | 23.1K | Apr 1994 – Feb 2025 |
| CNG I G-4-160792 | Texan Gardens-Tabasco, N. (Cons) | Hidalgo | 1 | 0 | 0 | Aug 1996 – Apr 2024 |
| Yturria L&L Co. -B- G-4-157307 | Yturria, NE (4470 Frio) | Starr | 1 | 0 | 327 | Jan 1996 – Mar 2024 |
| CNG I G-4-152619 | Texan Gardens-Tabasco, N. (Cons) | Hidalgo | 1 | 0 | 1.68M | Dec 1994 – Feb 2024 |
| Garcia L&L -B- G-4-124744 | Yturria (Rincon 4900) | Starr | 1 | 0 | 856K | Jan 1993 – Jan 2024 |
| Van Scherpe, Peter G-4-197657 | Jeffress (Vicksburg T) | Hidalgo | 1 | 0 | 0 | Jul 2003 – Apr 2021 |
| Hamilton, Buck G-4-191333 | Dinn, Deep (11200) | Duval | 1 | 0 | 0 | Nov 2002 – Oct 2019 |
| BMT/K&H G-4-189716 | Zwebb (10350) | Webb | 1 | 0 | 0 | Jul 2002 – Apr 2018 |