| Noll Sand Gas Unit O-4-13363 | Millennium Exploration Co. LLC | Flowella (Frio 7900) | Brooks | 1 | 215K | 370K | Jan 2004 – Jul 2026 |
| Lewis & Clark 'S' O-1-20620 | Millennium Exploration Co. LLC | First Shot (Austin Chalk) | Gonzales | 1 | 125K | 0 | May 2022 – Jul 2026 |
| Chalk Talk A O-1-20224 | Millennium Exploration Co. LLC | Peach Creek (Austin Chalk) | Gonzales | 2 | 71.1K | 12K | Jun 2020 – Mar 2023 |
| Dorn-Reece Unit O-1-13824 | Millennium Exploration Co. LLC | Luling-Branyon | Caldwell | 1 | 49.6K | 10 | Nov 1993 – Jul 2026 |
| Cosey-Dorn -A- O-1-7057 | Millennium Exploration Co. LLC | Luling-Branyon | Caldwell | 21 | 15K | 20 | Jan 1993 – Jul 2026 |
| Secretariat O-1-21689 | Millennium Exploration Co. LLC | Luling-Branyon | Caldwell | 1 | 6.61K | 0 | Feb 2025 – Jul 2026 |
| Denali O-1-21412 | Millennium Exploration Co. LLC | Saturn (Navarro) | Gonzales | 1 | 421 | 0 | Apr 2023 – Jul 2026 |
| Rupp Gas Unit 2 G-4-170547 | Millennium Exploration Co. LLC | Flowella (Vicksburg Deep) | Brooks | 1 | 0 | 282K | Jul 1998 – Jul 2026 |
| Noll Sand Gas Unit G-4-172132 | Millennium Exploration Co. LLC | Flowella (Nolle Sand) | Brooks | 1 | 0 | 1.22M | Nov 1998 – Jul 2026 |
| Rupp-Nichols Gas Unit G-4-173025 | Millennium Exploration Co. LLC | Flowella, W. (Vksbg. 4.5.6) | Brooks | 1 | 0 | 1.28M | Oct 1998 – Jul 2026 |
| Schnitz Gas Unit G-4-173034 | Millennium Exploration Co. LLC | Flowella, W. (Vksbg. 4.5.6) | Brooks | 1 | 0 | 464K | Feb 1999 – Jul 2026 |
| Gibson/Sien Unit G-4-176421 | Millennium Exploration Co. LLC | McCampbell (Frio P, Middle) | Aransas | 1 | 0 | 5.89M | Dec 1999 – Jul 2026 |
| Gibson/Sien G-4-177880 | Millennium Exploration Co. LLC | McCampbell (Frio P, Middle) | Aransas | 1 | 0 | 3.67M | Jun 2000 – Jul 2026 |
| Lopez, Lauro G-4-185364 | Millennium Exploration Co. LLC | Travis Ward (Wilcox) | Jim Hogg | 1 | 0 | 537K | Sep 2001 – Jul 2026 |
| Grant "C" G-4-188125 | Millennium Exploration Co. LLC | McCampbell (Frio J-3) | Aransas | 1 | 0 | 5.29M | Feb 2002 – Jul 2026 |
| Grant "B" G-4-188150 | Millennium Exploration Co. LLC | McCampbell (Frio P, Lower) | Aransas | 1 | 0 | 5.38M | Mar 2002 – Jul 2026 |
| Davis G-4-188865 | Millennium Exploration Co. LLC | McCampbell, North (P-2) | Aransas | 1 | 0 | 1.27M | Apr 2002 – Jul 2026 |
| Grant "A" G-4-189390 | Millennium Exploration Co. LLC | McCampbell (Frio P, Middle) | Aransas | 1 | 0 | 5.21M | May 2002 – Jul 2026 |
| Grant "A" G-4-194381 | Millennium Exploration Co. LLC | McCampbell (Frio P, Middle) | Aransas | 1 | 0 | 4.23M | Feb 2003 – Jul 2026 |
| Grant G-4-195215 | Millennium Exploration Co. LLC | McCampbell (Frio P, Upper) | Aransas | 1 | 0 | 8.5M | Jan 2002 – Jul 2026 |
| Rupp G-4-197680 | Millennium Exploration Co. LLC | Flowella (Z06) | Brooks | 1 | 0 | 1.2M | May 2003 – Jul 2026 |
| Garcia Gas Unit 2 G-4-199694 | Millennium Exploration Co. LLC | Flowella (Z06) | Brooks | 1 | 0 | 906K | Aug 2003 – Jul 2026 |
| Garcia Gas Unit 2 G-4-199695 | Millennium Exploration Co. LLC | Flowella (Vicksburg Deep) | Brooks | 1 | 0 | 638 | Sep 2003 – Jul 2026 |
| Rupp G-4-200903 | Millennium Exploration Co. LLC | Flowella (Frio 8750) | Brooks | 1 | 0 | 162K | Jun 2003 – Jul 2026 |
| Garcia-Benavides Gas Unit 2 G-4-205251 | Millennium Exploration Co. LLC | Flowella (Vicksburg 3) | Brooks | 1 | 0 | 35.7K | Feb 2004 – Jul 2026 |
| Garcia, Nellie G-4-215817 | Millennium Exploration Co. LLC | Ann Mag (7700 Frio) | Brooks | 1 | 0 | 69.1K | Dec 2005 – Jul 2026 |
| Grant "A" G-4-216772 | Millennium Exploration Co. LLC | McCampbell (Deep Frio Cons.) | Aransas | 1 | 0 | 941K | Jan 2006 – Jul 2026 |
| Grant "A" G-4-219630 | Millennium Exploration Co. LLC | McCampbell (Deep Frio Cons.) | Aransas | 1 | 0 | 2.48M | Apr 2006 – Jul 2026 |
| Grant "A" G-4-220144 | Millennium Exploration Co. LLC | McCampbell (Deep Frio Cons.) | Aransas | 1 | 0 | 3.94M | Apr 2006 – Jul 2026 |
| Grant "A" G-4-224143 | Millennium Exploration Co. LLC | McCampbell (Deep Frio Cons.) | Aransas | 1 | 0 | 262K | Sep 2006 – Jul 2026 |
| Davis Gas Unit G-4-224982 | Millennium Exploration Co. LLC | McCampbell (Deep Frio Cons.) | Aransas | 1 | 0 | 662K | Nov 2006 – Jul 2026 |
| Davis Gas Unit G-4-226387 | Millennium Exploration Co. LLC | McCampbell (Deep Frio Cons.) | Aransas | 1 | 0 | 243K | Mar 2007 – Jul 2026 |
| Davis Gas Unit G-4-226389 | Millennium Exploration Co. LLC | McCampbell (Deep Frio Cons.) | Aransas | 1 | 0 | 397K | Mar 2007 – Jul 2026 |
| Gibson & Sien "D" Unit G-4-231272 | Millennium Exploration Co. LLC | McCampbell (Deep Frio Cons.) | Aransas | 1 | 0 | 2.31M | Sep 2007 – Jul 2026 |
| Gibson & Sien G-4-233418 | Millennium Exploration Co. LLC | McCampbell (Deep Frio Cons.) | Aransas | 1 | 0 | 697K | Oct 2007 – Jul 2026 |
| Grant "A" G-4-233992 | Millennium Exploration Co. LLC | McCampbell (Deep Frio Cons.) | Aransas | 1 | 0 | 909K | Jul 2007 – Jul 2026 |
| Gibson & Sien G-4-237048 | Millennium Exploration Co. LLC | McCampbell (Deep Frio Cons.) | Aransas | 1 | 0 | 259K | Jan 2008 – Jul 2026 |
| Flinn, et al Unit G-4-267429 | Millennium Exploration Co. LLC | McCampbell (Deep Frio Cons.) | Aransas | 1 | 0 | 1.16M | Feb 2012 – Jul 2026 |
| Lauro Lopez G-4-300778 | Millennium Exploration Co. LLC | Travis Ward (Queen City) | Jim Hogg | 1 | 0 | 0 | Sep 2025 – Jul 2026 |
| Cosey-Dorn -B- O-1-7273 | Millennium Exploration Co. LLC | Luling-Branyon | Caldwell | 1 | 0 | 0 | Jan 1993 – Jul 2026 |
| M&M O-1-21089 | Millennium Exploration Co. LLC | First Shot (Austin Chalk) | Gonzales | 1 | 0 | 0 | Apr 2023 – Jul 2026 |
| Col. Moore O-1-21090 | Millennium Exploration Co. LLC | First Shot (Austin Chalk) | Gonzales | 1 | 0 | 0 | Feb 2023 – Jul 2026 |
| Sugarek G-3-282383 | Millennium Exploration Co. LLC | Eagle Lake (Wilcox A-2) | Colorado | 1 | 0 | 0 | Jan 2017 – Feb 2017 |
| May 154 O-6-15758 | Millennium Exploration Co. LLC | Wildcat | Wood | 1 | 0 | 0 | Oct 2019 – Jul 2026 |
| Runnells G-3-282937 | Millennium Exploration Co. LLC | Markham N.-Bay CITY,N(7300) | Matagorda | 1 | 0 | 464K | Oct 2016 – May 2023 |
| Vela, Roberto G-4-97310 | Millennium Exploration Co. LLC | Comitas, S. (Wilcox Consol.) | Zapata | 1 | 0 | 1.64M | Jan 1993 – Jul 2026 |
| Baxter Gibson Sien G-4-137097 | Millennium Exploration Co. LLC | McCampbell, North (P-2) | Aransas | 1 | 0 | 2.33M | Jan 1993 – Jul 2026 |
| Garcia-Rupp Gas Unit G-4-149578 | Millennium Exploration Co. LLC | Flowella (Vicksburg Deep) | Brooks | 1 | 0 | 3.45M | Apr 1994 – Jul 2026 |
| Garcia-Benavides Gas Unit G-4-151053 | Millennium Exploration Co. LLC | Flowella (Vicksburg Deep) | Brooks | 1 | 0 | 2.15M | Aug 1994 – Jul 2026 |
| Garcia-Rupp Gas Unit G-4-154581 | Millennium Exploration Co. LLC | Flowella (Vicksburg Deep) | Brooks | 1 | 0 | 1.83M | Mar 1995 – Jul 2026 |