| J.C. Mann Gas Unit G-4-145065 | Cadre (Vicksburg Patriot) | Hidalgo | 1 | 420K | 24.7M | Apr 1993 – Apr 2026 |
| Guerra, E.E. "A" G-4-121568 | McAllen Ranch (Guerra) | Hidalgo | 1 | 295K | 18.6M | Jan 1993 – Apr 2026 |
| J.C. Mann Gas Unit G-4-146858 | Cadre (Vicksburg Patriot) | Hidalgo | 1 | 132K | 11.9M | Sep 1993 – Apr 2026 |
| Ames G.U. G-4-220917 | Chile Vieja (Frio) | Willacy | 1 | 104K | 6.04M | Jul 2006 – Apr 2026 |
| Jerico Ltd.gas Unit G-4-175691 | Cadre (Vicksburg Patriot) | Hidalgo | 1 | 102K | 4.91M | Dec 1999 – Apr 2026 |
| Ames et al GU G-4-222562 | Chile Vieja (Frio) | Willacy | 1 | 98.3K | 5.79M | Sep 2006 – Apr 2026 |
| Stewart G-4-156253 | Santa Rosa (10,700) | Kenedy | 1 | 82.1K | 7.32M | Nov 1995 – Apr 2026 |
| Palo Blanco Gas Unit G-4-233101 | W. E. Colson (Vx. Bingo) | Brooks | 1 | 81.2K | 1.6M | Nov 2007 – Apr 2026 |
| Jerico Ltd Gas Unit G-4-217454 | Cadre (Vicksburg Patriot) | Hidalgo | 1 | 77.4K | 4.38M | Mar 2006 – Apr 2026 |
| Jerico Ltd Gas Unit G-4-196646 | Cadre (Vicksburg Patriot) | Hidalgo | 1 | 77.1K | 4.2M | Aug 2003 – Apr 2026 |
| Jerico Ltd. Gas Unit G-4-212867 | Cadre (Vicksburg Patriot) | Hidalgo | 1 | 72.7K | 3.28M | Sep 2005 – Apr 2026 |
| Kerr et al GU G-4-247130 | La Sal Vieja (Deep) | Willacy | 1 | 70.1K | 1.64M | Jan 2009 – Apr 2026 |
| Lefner et al Gas Unit G-4-238507 | Chile Vieja (Frio) | Willacy | 1 | 53.1K | 2.9M | Apr 2008 – Apr 2026 |
| Degoche, Louise G-4-256218 | Landa (Marks) | Hidalgo | 1 | 48K | 10.5M | May 2010 – Apr 2026 |
| Beaurline G-4-218823 | McAllen Ranch (Vksbg W-Y) | Hidalgo | 1 | 41.3K | 1.63M | Mar 2006 – Apr 2026 |
| Palo Blanco Gas Unit G-4-226381 | W. E. Colson (Vx. Bingo) | Brooks | 1 | 37.3K | 1.57M | Mar 2007 – Apr 2026 |
| Henderson, J.W. et al Gas Unit G-4-237330 | La Sal Vieja (Frio L) | Willacy | 1 | 34.9K | 3.77M | Mar 2008 – Apr 2026 |
| Guerra, E.E. G-4-249521 | McAllen Ranch (Guerra) | Hidalgo | 1 | 34.5K | 4.52M | Apr 2009 – Apr 2026 |
| Wrightsman, et al GU G-4-252519 | Chile Vieja (Frio) | Willacy | 1 | 32.2K | 1.28M | Oct 2009 – Apr 2026 |
| Beaurline G-4-225759 | McAllen Ranch (Vksbg W-Y) | Hidalgo | 1 | 31.9K | 1.3M | Sep 2006 – Apr 2026 |
| Ames et al GU G-4-244685 | Chile Vieja (Frio) | Willacy | 1 | 31.4K | 3.55M | Dec 2008 – Apr 2026 |
| Stewart G-4-151377 | Santa Rosa (10,700) | Kenedy | 1 | 29.3K | 3.64M | Aug 1994 – Apr 2026 |
| Guerra, E. E. "A" G-4-254434 | McAllen Ranch (Guerra) | Hidalgo | 1 | 28.8K | 2.76M | Jan 2010 – Apr 2026 |
| Bondy GU G-4-226742 | Chile Vieja (Frio Deep) | Willacy | 1 | 28K | 1.98M | Aug 2006 – Apr 2026 |
| Lefner et al Gas Unit G-4-273104 | Chile Vieja (Frio) | Willacy | 1 | 27.5K | 1.46M | Jan 2014 – Apr 2026 |
| Rhodes Unit G-4-226323 | Landa (Marks) | Hidalgo | 1 | 23.7K | 1.94M | Dec 2006 – Apr 2026 |
| Lockhart Gas Unit G-4-156931 | Weslaco, North (Frio Cons.) | Hidalgo | 1 | 22.9K | 2.18M | Jan 1996 – Apr 2026 |
| Stewart G-4-160038 | Santa Rosa (10,700) | Kenedy | 1 | 22.6K | 2.27M | Sep 1996 – Apr 2026 |
| Guerra, E. E. "A" G-4-254900 | McAllen Ranch (Guerra) | Hidalgo | 1 | 21K | 2.43M | Feb 2010 – Apr 2026 |
| Wrightsman, et al GU G-4-256329 | Chile Vieja (Frio) | Willacy | 1 | 20K | 972K | May 2010 – Apr 2026 |
| Flack Unit G-4-236859 | W. E. Colson (Vx. Bingo) | Brooks | 1 | 19.5K | 1.39M | Dec 2007 – Apr 2026 |
| Henderson, J.W. et al Gas Unit G-4-216710 | La Sal Vieja (Deep) | Willacy | 1 | 18.8K | 1.8M | Dec 2005 – Apr 2026 |
| Dougherty/Eia Unit 2 G-4-137983 | Jicarilla (I-2) | Hidalgo | 1 | 18.4K | 1.45M | Jan 1993 – Apr 2026 |
| Lockhart Gas Unit G-4-187690 | Weslaco, North (Frio Cons.) | Hidalgo | 1 | 16.4K | 380K | Feb 2002 – Apr 2026 |
| Guerra, E. E. G-4-183944 | McAllen Ranch (Guerra) | Hidalgo | 1 | 16.3K | 4.49M | Jul 2001 – Apr 2026 |
| Lockhart Gas Unit G-4-134214 | Weslaco, North (Frio Cons.) | Hidalgo | 1 | 15.9K | 2.34M | Jan 1993 – Apr 2026 |
| Pate Gas Unit 1 G-4-10910 | Hidalgo, West (la Frontera) | Hidalgo | 1 | 15.7K | 2.03M | Jan 1993 – Apr 2026 |
| Guerra, E. E. G-4-143900 | McAllen Ranch (Guerra) | Hidalgo | 1 | 14.7K | 5.34M | Jan 1993 – Apr 2026 |
| E. E. Guerra G-4-142254 | Santellana, South (Frio, Vksbg) | Hidalgo | 1 | 13.1K | 2.92M | Jan 1993 – Apr 2026 |
| Dougherty/Eia, Unit No. 2 G-4-185830 | Jicarilla (I-2) | Hidalgo | 1 | 13K | 985K | May 2001 – Apr 2026 |
| McGill, H. F. G-4-14083 | Santa Rosa (10,700) | Kenedy | 1 | 12.2K | 1.57M | Jan 1993 – Apr 2026 |
| Kawahata Unit G-4-43417 | Hidalgo (Hackney B) | Hidalgo | 1 | 12K | 315K | Jan 1993 – Apr 2026 |
| Savage -a- Unit G-4-10899 | Hidalgo (Cord) | Hidalgo | 1 | 11.9K | 918K | Jan 1993 – Apr 2026 |
| Dougherty/Eia Unit #1 G-4-186648 | Jicarilla (I-2) | Hidalgo | 1 | 11.6K | 535K | Jul 2001 – Apr 2026 |
| Crocker Unit G-4-261223 | Canelo (I-08, S) | Kenedy | 1 | 10.8K | 1.85M | May 2011 – Apr 2026 |
| Lockhart Gas Unit G-4-175385 | Weslaco, North (Frio Cons.) | Hidalgo | 1 | 10.7K | 453K | Dec 1999 – Apr 2026 |
| Guerra, E.E. G-4-249499 | McAllen Ranch (Guerra) | Hidalgo | 1 | 10.1K | 4.53M | Jun 2009 – Apr 2026 |
| McGill, H.F. "A" G-4-161779 | Santa Rosa (10,700) | Kenedy | 1 | 8.49K | 1.14M | Feb 1997 – Apr 2026 |
| Guerra, A. E. G-4-169797 | Santellana, South (Frio, Vksbg) | Hidalgo | 1 | 7.28K | 3.35M | Aug 1998 – Apr 2026 |
| Palo Blanco Gas Unit G-4-293121 | Parrita (9240) | Brooks | 1 | 6.98K | 205K | Jul 2022 – Apr 2026 |