| Mueller 18A-Frisbie B SA 1 G-2-296438 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 345K | 1.21M | Oct 2021 – Apr 2026 |
| H. Mueller 18A G-2-282071 | Devon Energy Production Co, L.P. only | Eagleville (Eagle Ford-2) | De Witt | 1 | 342K | 1.26M | Jul 2012 – Jan 2023 |
| H. Mueller 18A G-2-297598 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 322K | 891K | Feb 2025 – Apr 2026 |
| H. Mueller 18A G-2-298096 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 302K | 1.25M | Feb 2025 – Apr 2026 |
| H. Mueller 18A G-2-297594 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 279K | 1.05M | Feb 2025 – Apr 2026 |
| H. Mueller 18A G-2-281905 | BPX Operating Company only | Eagleville (Eagle Ford-2) | De Witt | 1 | 204K | 787K | May 2014 – Mar 2025 |
| Mueller-Korth Unit G-3-148108 | Union Pacific Resources Company only | Giddings (Austin Chalk, Gas) | Lee | 1 | 155K | 751K | Jan 1994 – Aug 1999 |
| Mercy Gas Unit G-3-172018 | Mueller Exploration, Inc. only | Mercy (10400 Wilcox) | San Jacinto | 1 | 102K | 1.2M | Jan 1999 – Apr 2026 |
| Mueller Family 01 G-2-265507 | Marathon Oil EF LLC only | De Witt (Eagle Ford Shale) | De Witt | 1 | 88.7K | 1.91M | May 2011 – Apr 2026 |
| Mueller 01 G-2-265662 | Marathon Oil EF LLC only | De Witt (Eagle Ford Shale) | De Witt | 1 | 51.6K | 1.19M | Jun 2011 – Apr 2026 |
| Northington Unit 2 G-3-281682 | Mueller Exploration, Inc. only | Northington Lake (Wilcox) | Wharton | 1 | 49.6K | 1.68M | Apr 2016 – Apr 2026 |
| Garcia Heirs G-4-255541 | Mueller Exploration, Inc. only | La Coyota (Queen City) | Starr | 1 | 45.3K | 4.73M | Jan 2010 – Apr 2026 |
| Mueller, Lorenz et al Unit G-3-100024 | Young, John H., Inc. only | Giddings (Edwards, Gas) | Fayette | 1 | 37.2K | 2.08M | Jan 1993 – Aug 2025 |
| Mueller Gas Unit G-2-161425 | Capital Star Oil & Gas, Inc. only | Word, N. (Edwards) | Lavaca | 1 | 29.8K | 4.17M | Nov 1996 – Apr 2026 |
| Mueller G-2-230779 | Zone Ridge Operating, LLC only | Koerth (Wilcox 11150) | Lavaca | 1 | 29.7K | 1.64M | Oct 2007 – May 2022 |
| Mueller Gas Unit G-2-164428 | Capital Star Oil & Gas, Inc. only | Word, N. (Edwards) | Lavaca | 1 | 24.7K | 4.1M | Jul 1997 – Apr 2026 |
| Garcia Heirs G-4-262319 | Mueller Exploration, Inc. only | La Coyota (Queen City) | Starr | 1 | 21.6K | 2.06M | Jul 2011 – Apr 2026 |
| Mueller G-3-207013 | CML Exploration, LLC only | Rosenberg, W. (LWR Cook MTN) | Fort Bend | 1 | 21.2K | 1.73M | Nov 2004 – May 2025 |
| Mueller, A. W. Heirs G-2-175302 | Texas Independent Explor Ltd. only | Green Lake, West (8850) | Calhoun | 1 | 20.8K | 1.59M | Jul 1999 – Mar 2026 |
| Mueller G-2-242786 | Zone Ridge Operating, LLC only | Koerth (Wilcox 11150) | Lavaca | 1 | 19.4K | 1.33M | Sep 2008 – Dec 2024 |
| Beaurline. A. W. G-4-196242 | Mueller Exploration, Inc. only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 19K | 2.81M | Jun 2003 – Apr 2026 |
| Mueller Gas Unit G-2-116315 | Capital Star Oil & Gas, Inc. only | Word, N. (Edwards) | Lavaca | 1 | 18K | 2.2M | Jan 1993 – Apr 2026 |
| Mueller Gas Unit G-2-153703 | Capital Star Oil & Gas, Inc. only | Word, N. (Edwards) | Lavaca | 1 | 15.6K | 1.92M | Mar 1995 – Apr 2026 |
| Mueller, A.W. Heirs G-2-138707 | Texas Independent Explor., Inc. only | Green Lake, W. (LF-10) | Calhoun | 1 | 14.8K | 981K | Jan 1993 – Jun 1999 |
| Mueller Gas Unit G-2-112256 | Capital Star Oil & Gas, Inc. only | Word, N. (Edwards) | Lavaca | 1 | 13K | 1.63M | Jan 1993 – Apr 2026 |
| Beaurline, A. W. G-4-148695 | Mueller Exploration, Inc. only | 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. only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 11.5K | 795K | Dec 1995 – Nov 2024 |
| JO Ann Mueller 01 G-2-268658 | Marathon Oil EF LLC only | De Witt (Eagle Ford Shale) | De Witt | 1 | 10.3K | 1.23M | Jun 2012 – Apr 2026 |
| Mueller Unit G-8-174651 | Petex only | Olive Mae (Caddo) | Stephens | 1 | 10.2K | 902K | Aug 1999 – Apr 2026 |
| V. L. Puig Gas Unit 2 G-4-156135 | Mueller Engineering Corp. only | Muy Malo (4TH Hinnant) | Webb | 1 | 8.97K | 504K | Sep 1995 – Sep 2000 |
| BP America Production Co. G-3-264529 | Mueller Exploration, Inc. only | Sour Lake, E. (Yegua, Lower) | Hardin | 1 | 7.05K | 159K | Apr 2012 – Mar 2016 |
| Putnam-Lange G-3-211114 | Mueller Exploration, Inc. only | Porter's Creek (Yegua) | Wharton | 1 | 4.85K | 144K | May 2005 – May 2012 |
| Curtis Foester G-2-250710 | Mueller Exploration, Inc. only | Magnolia Beach (8700) | Calhoun | 1 | 4.7K | 115K | Jul 2009 – Feb 2017 |
| Mueller, E. E. G-3-8592 | Tortuga Operating Company only | Tomball (Wilcox 8400) | Harris | 1 | 3.91K | 885K | Jan 1993 – Apr 2026 |
| Bozka, William D. G-2-161771 | Mueller Engineering Corp. only | Holyfield Fan Man Sand (Yegua 1) | Lavaca | 1 | 3.27K | 349K | Jan 1997 – Feb 1999 |
| Garcia, J. G-4-143926 | Mueller Engineering Corp. only | Braman (Yegua 6) | Jim Wells | 1 | 2.88K | 119K | Jan 1993 – Sep 1995 |
| Binz Gas Unit G-2-145405 | Mueller Engineering Corp. only | Mission Valley (8300) | Victoria | 1 | 2.75K | 176K | May 1993 – Sep 1995 |
| Greiner G-4-141836 | Mueller Engineering Corp. only | Rincon (Vicksburg 5920) | Starr | 1 | 2.69K | 194K | Jan 1993 – Nov 1996 |
| Mueller, Perry Jr. G-3-185380 | Oblaen Resources LLC only | Barb-Mag, SE. (Cook Mountain) | Fort Bend | 1 | 1.65K | 101K | Mar 2000 – Jan 2018 |
| Slick Estate G-4-120441 | Mueller Engineering Corp. only | Rincon (Vicksburg 5920) | Starr | 1 | 1.47K | 223K | Jan 1993 – Mar 1998 |
| Mueller, Katey G-8-226009 | Bridwell Oil Co. only | Stephens County Regular (Gas) | Stephens | 1 | 1.46K | 283K | Feb 2007 – Feb 2021 |
| Garcia, J. A. et Al G-4-115365 | Mueller Engineering Corp. only | Bloomberg (Vicksburg 6800) | Hidalgo | 1 | 1.24K | 141K | Jan 1993 – Mar 2000 |
| Mueller Unit G-3-140795 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Lee | 1 | 1.19K | 69.6K | Jan 1993 – Mar 2007 |
| Mueller Gas Unit Hix Green G-2-252971 | Winn Exploration Co., Inc. only | Warmsley (10,350) | De Witt | 1 | 1.16K | 61.6K | Jul 2009 – Mar 2010 |
| Dornburg, H. G-2-92125 | Mueller Engineering Corp. only | Dornburg (Reklaw 1E) | Goliad | 1 | 1K | 47K | Jan 1994 – Sep 1996 |
| GKT-Map EF Unit G-2-285697 | Mueller Exploration, Inc. only | Sugarkane (Eagle Ford) | Live Oak | 1 | 990 | 6.93M | Aug 2018 – Apr 2026 |
| Caiman Ranch G-1-136603 | Mueller Engineering Corp. only | Nunley Ranch (5890) | La Salle | 1 | 645 | 404K | Jan 1993 – Dec 1996 |
| Mueller G-2-213269 | Everest Resource Company only | Kemper, East (5650) | Lavaca | 1 | 624 | 99.3K | Dec 2004 – Feb 2006 |
| Kunkel-Mueller Unit G-3-96904 | Mescalero Energy, Inc. only | Giddings (Austin Chalk, Gas) | Washington | 1 | 619 | 15.3K | Jan 1993 – Apr 1996 |
| Caiman Ranch G-1-132334 | Mueller Engineering Corp. only | Nunley Ranch (5890) | La Salle | 1 | 411 | 229K | Jan 1993 – Feb 1996 |