| Mercy Gas Unit G-3-172018 | Mueller Exploration, Inc. | Mercy (10400 Wilcox) | San Jacinto | 1 | 102K | 1.2M | Jan 1999 – Apr 2026 |
| Northington Unit 2 G-3-281682 | Mueller Exploration, Inc. | Northington Lake (Wilcox) | Wharton | 1 | 49.6K | 1.68M | Apr 2016 – Apr 2026 |
| Garcia Heirs G-4-255541 | Mueller Exploration, Inc. | La Coyota (Queen City) | Starr | 1 | 45.3K | 4.73M | Jan 2010 – Apr 2026 |
| Garcia Heirs G-4-262319 | Mueller Exploration, Inc. | La Coyota (Queen City) | Starr | 1 | 21.6K | 2.06M | Jul 2011 – Apr 2026 |
| Beaurline. A. W. G-4-196242 | Mueller Exploration, Inc. | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 19K | 2.81M | Jun 2003 – Apr 2026 |
| Beaurline, A. W. G-4-148695 | Mueller Exploration, Inc. | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 12K | 1.15M | Jan 1994 – Nov 2024 |
| Beaurline, A. W. G-4-157387 | Mueller Exploration, Inc. | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 11.5K | 795K | Dec 1995 – Nov 2024 |
| BP America Production Co. G-3-264529 | Mueller Exploration, Inc. | Sour Lake, E. (Yegua, Lower) | Hardin | 1 | 7.05K | 159K | Apr 2012 – Mar 2016 |
| Putnam-Lange G-3-211114 | Mueller Exploration, Inc. | Porter's Creek (Yegua) | Wharton | 1 | 4.85K | 144K | May 2005 – May 2012 |
| Curtis Foester G-2-250710 | Mueller Exploration, Inc. | Magnolia Beach (8700) | Calhoun | 1 | 4.7K | 115K | Jul 2009 – Feb 2017 |
| GKT-Map EF Unit G-2-285697 | Mueller Exploration, Inc. | Sugarkane (Eagle Ford) | Live Oak | 1 | 990 | 6.93M | Aug 2018 – Apr 2026 |
| Baass Gas Unit G-2-197473 | Mueller Exploration, Inc. | Speaks (10000 Wilcox) | Lavaca | 1 | 337 | 67.5K | May 2002 – Jan 2004 |
| Bialek G-2-184415 | Mueller Exploration, Inc. | Helen Gohlke, W. (Yegua) | De Witt | 1 | 334 | 88.6K | Jun 2001 – Dec 2002 |
| Hubbard, John G-2-270950 | Mueller Exploration, Inc. | Magnolia Beach (Foester) | Calhoun | 1 | 303 | 17.9K | Jan 2013 – May 2013 |
| Rivers et al GU G-3-280169 | Mueller Exploration, Inc. | Pickett Ridge, N. (Yegua DY) | Wharton | 1 | 186 | 24.5K | Dec 2014 – Jun 2015 |
| Castellow, E. G-2-184403 | Mueller Exploration, Inc. | Joseph P. Mueller (Will) | Lavaca | 1 | 186 | 196K | Jun 2001 – Sep 2005 |
| Bludau Gas Unit G-2-188509 | Mueller Exploration, Inc. | Joseph P. Mueller (Kerri) | Lavaca | 1 | 155 | 110K | Jun 2001 – Oct 2003 |
| Saenz "A" G-4-251244 | Mueller Exploration, Inc. | Ana Laura (Queen City) | Duval | 1 | 124 | 10.9K | Sep 2009 – Jul 2010 |
| Saenz "A" G-4-257938 | Mueller Exploration, Inc. | Alpha (2200) | Duval | 1 | 92 | 19.7K | Aug 2010 – Apr 2011 |
| Herrmann G-3-176436 | Mueller Exploration, Inc. | Alwan (Frio 4315) | Wharton | 1 | 52 | 144K | Mar 2000 – Oct 2003 |
| V. Muehr Gas Unit G-2-172903 | Mueller Exploration, Inc. | Joseph P. Mueller (Tami JO) | Lavaca | 1 | 20 | 285K | Mar 1999 – Feb 2002 |
| Hubert-Taggart B G-2-297216 | Mueller Exploration, Inc. | Sugarkane (Eagle Ford) | Live Oak | 1 | 0 | 5.55M | Sep 2024 – Apr 2026 |
| Husky-GKT A G-2-301081 | Mueller Exploration, Inc. | Sugarkane (Eagle Ford) | Live Oak | 1 | 0 | 1.38M | Jan 2026 – Apr 2026 |
| Hubert-Johnson G-2-301116 | Mueller Exploration, Inc. | Sugarkane (Eagle Ford) | Live Oak | 1 | 0 | 1.75M | Jan 2026 – Apr 2026 |
| GKT-Collins EF Unit G-2-285048 | Mueller Exploration, Inc. | Sugarkane (Eagle Ford) | Live Oak | 1 | 0 | 5.72M | Sep 2018 – Apr 2026 |
| Volkmer G-2-156484 | Mueller Exploration, Inc. | Weber, W. (3840) | Goliad | 1 | 0 | 99.1K | Oct 1995 – Jan 1997 |
| B & M Farms G-3-203755 | Mueller Exploration, Inc. | Louise (Frio 5100) | Wharton | 1 | 0 | 2.62K | Oct 2004 – Nov 2004 |
| GKT-Map EF Unit G-2-284149 | Mueller Exploration, Inc. | Sugarkane (Eagle Ford) | Live Oak | 1 | 0 | 3.92M | Dec 2017 – Apr 2026 |
| Ammann Heirs Unit G-3-251703 | Mueller Exploration, Inc. | New Taiton (Meek) | Wharton | 1 | 0 | 1.08K | May 2009 – Sep 2009 |
| Bialek G-2-195710 | Mueller Exploration, Inc. | Helen Gohlke (1650) | De Witt | 1 | 0 | 0 | — |
| Hubert-Taggart A G-2-297131 | Mueller Exploration, Inc. | Sugarkane (Eagle Ford) | Live Oak | 1 | 0 | 4.36M | Sep 2024 – Apr 2026 |
| Ward G-3-281669 | Mueller Exploration, Inc. | Allen Dome | Brazoria | 1 | 0 | 34.9K | Oct 2020 – Sep 2021 |
| B. Skelton Gas Unit G-2-178085 | Mueller Exploration, Inc. | Joseph P. Mueller (Wolverine) | Lavaca | 1 | 0 | 785K | Nov 1999 – Oct 2007 |
| Perry G-3-288499 | Mueller Exploration, Inc. | Allen Dome | Brazoria | 1 | 0 | 127K | Oct 2019 – Jul 2022 |
| C. Meyer Gas Unit G-2-177515 | Mueller Exploration, Inc. | Joseph P. Mueller (Kerri) | Lavaca | 1 | 0 | 24K | Nov 1999 – Mar 2000 |
| D. Bohot Gas Unit G-2-176815 | Mueller Exploration, Inc. | Joseph P. Mueller (Jules Y-3) | Lavaca | 1 | 0 | 89.3K | Mar 2000 – Jul 2000 |
| Kocian G-2-176323 | Mueller Exploration, Inc. | Joseph P. Mueller (Lawrence) | Lavaca | 1 | 0 | 609K | Jan 2000 – Sep 2008 |
| V. Kloppenburg Gas Unit G-2-175287 | Mueller Exploration, Inc. | Joseph P. Mueller (Will) | Lavaca | 1 | 0 | 72.7K | Sep 1999 – Apr 2000 |
| Bohot, D. G-2-174744 | Mueller Exploration, Inc. | Joseph P. Mueller (Max) | Lavaca | 1 | 0 | 285K | Aug 1999 – Aug 2002 |
| Henderson, P. G-2-174411 | Mueller Exploration, Inc. | Joseph P. Mueller (Wild Haire) | Lavaca | 1 | 0 | 142K | Jun 1999 – Mar 2002 |
| Castellow, E. G-2-184656 | Mueller Exploration, Inc. | Joseph P. Mueller (Will) | Lavaca | 1 | 0 | 232K | Jul 2001 – Nov 2005 |