| China Townsite Unit G-3-163503 | Zachry Exploration, LLC only | China Townsite (Yegua EY-2) | Jefferson | 1 | 275K | 12.8M | Dec 1996 – Aug 2026 |
| Jacobs et al Unit G-2-265012 | Zachry Exploration, LLC only | Esperanza (8800) | Lavaca | 1 | 71.5K | 3.11M | May 2012 – Aug 2026 |
| Robinson-Buckeye Unit G-2-242643 | Zachry Exploration, LLC only | Lonken (7030) | Jackson | 1 | 59.7K | 2.29M | Sep 2008 – Jun 2014 |
| Kaup Unit G-2-240638 | Zachry Exploration, LLC only | Largo Navidad (6560) | Jackson | 1 | 50.9K | 6.82M | Sep 2008 – Sep 2024 |
| Oliver G-2-233755 | Zachry Exploration, LLC only | El Torito (Yegua 9000) | Jackson | 1 | 38.9K | 759K | Jan 2008 – Mar 2011 |
| Finger et al Unit G-2-263097 | Zachry Exploration, LLC only | Singleton (Pettus) | Bee | 1 | 28.8K | 78.5K | Mar 2012 – Sep 2014 |
| Schindler Unit G-2-281999 | Zachry Exploration, LLC only | Hallettsville, South (Wx. 6900) | Lavaca | 1 | 22.3K | 1.61M | May 2017 – Nov 2020 |
| Korenek, L. G-3-194314 | Zachry Exploration, LLC only | Danbury Dome (5655 Sand) | Brazoria | 1 | 17.7K | 1.77M | Apr 2003 – Feb 2008 |
| D. Rose et al Unit G-2-257479 | Zachry Exploration, LLC only | Lonken (7030) | Jackson | 1 | 16.3K | 538K | Jun 2010 – May 2018 |
| Bodden #1 G-2-145926 | Zachry Exploration, Inc. only | Meyersville, W. (Wilcox Mass.) | De Witt | 1 | 16.1K | 892K | Apr 1993 – May 1999 |
| Zachry, H.B. -D G-4-82019 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 8.24K | 3.13M | by Jan 1993 – Aug 2026 |
| Urban Unit G-3-212785 | Zachry Exploration, Ltd. only | Danbury Dome (5655 Sand) | Brazoria | 1 | 8.17K | 247K | Aug 2005 – Jun 2006 |
| Korenek G-3-156065 | Zachry Exploration, Inc. only | Danbury Dome* | Brazoria | 1 | 6.96K | 580K | Nov 1995 – Apr 2000 |
| Zachry G-4-99244 | Columbus Energy, LLC only | Rancho Blanco (Lobo) | Webb | 1 | 6.62K | 2.74M | by Jan 1993 – Sep 2019 |
| Robinson-Sooner South G-2-247334 | Zachry Exploration, LLC only | Largo Navidad (6560) | Jackson | 1 | 5.32K | 388K | Sep 2008 – Mar 2017 |
| Keeran Ranch G-2-167018 | Zachry Exploration, LLC only | Koontz, NE. (5980) | Victoria | 1 | 5.1K | 1.28M | Nov 1997 – Oct 2011 |
| Moller G-3-176213 | Zachry Exploration, Inc. only | Danbury Dome (5655 Sand) | Brazoria | 1 | 4.39K | 29.2K | Feb 2000 – Apr 2000 |
| Natho Unit G-2-274135 | Zachry Exploration, LLC only | Malo Domingo (Wilcox 10300) | Karnes | 1 | 3.98K | 241K | Sep 2014 – Jul 2018 |
| Clayton G-9-212268 | Zachry Oil and Gas Properties only | Ozona, NE. (Canyon 7520) | Crockett | 1 | 2.78K | 222K | Jul 2005 – Aug 2026 |
| Sinclair Clayton "10" G-9-210757 | Zachry Oil and Gas Properties only | Ozona, NE. (Canyon 7520) | Crockett | 1 | 2.62K | 315K | Jun 2005 – Aug 2026 |
| Zachry, H. B. -C- G-4-72249 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 2.6K | 1.19M | by Jan 1993 – Aug 2026 |
| Zachry, H. B. G-4-65463 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 2.6K | 1.6M | by Jan 1993 – Aug 2026 |
| Clayton G-9-211204 | Zachry Oil and Gas Properties only | Ozona, NE. (Canyon 7520) | Crockett | 1 | 2.47K | 242K | Jun 2005 – Aug 2026 |
| H. B. Zachry Unit G-4-152731 | North Central Oil Corp. only | Zachry (Lobo 6200) | Webb | 1 | 2.42K | 1.08M | Jul 1994 – Aug 2002 |
| Shell-Clayton G-9-163883 | Zachry Oil and Gas Properties only | Ozona, NE. (Canyon 7520) | Crockett | 1 | 2.42K | 606K | Jul 1997 – Aug 2026 |
| Shell Clayton G-9-213190 | Zachry Oil and Gas Properties only | Ozona, NE. (Canyon 7520) | Schleicher | 1 | 2.35K | 241K | Sep 2005 – Aug 2026 |
| Zachry, H. B. G-4-68319 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 2.35K | 2.26M | by Jan 1993 – Aug 2026 |
| Clayton, Sinclair "11" G-9-211209 | Zachry Oil and Gas Properties only | Ozona, NE. (Canyon 7520) | Crockett | 1 | 2.16K | 209K | May 2005 – Aug 2026 |
| Zachry, H. B. G-4-118854 | Columbus Energy, LLC only | Hein (Lobo) | Webb | 1 | 2.1K | 845K | by Jan 1993 – Oct 2008 |
| Sinclair Clayton "11" G-9-214271 | Zachry Oil and Gas Properties only | Ozona, NE. (Canyon 7520) | Crockett | 1 | 1.95K | 252K | Aug 2005 – Aug 2026 |
| Sinclair-Clayton G-9-163934 | Zachry Oil and Gas Properties only | Ozona, NE. (Canyon 7520) | Crockett | 1 | 1.77K | 365K | Jul 1997 – Aug 2026 |
| Shell Clayton "12" G-9-213239 | Zachry Oil and Gas Properties only | Ozona, NE. (Canyon 7520) | Crockett | 1 | 1.74K | 244K | Jul 2005 – Apr 2026 |
| Clayton, Sinclair "11" G-9-210815 | Zachry Oil and Gas Properties only | Ozona, NE. (Canyon 7520) | Crockett | 1 | 1.62K | 246K | May 2005 – Aug 2026 |
| Moller G-3-216958 | Zachry Exploration, Ltd. only | Danbury Dome (5655 Sand) | Brazoria | 1 | 1.58K | 36K | Jan 2006 – Jun 2006 |
| Sinclair Clayton "10" G-9-211210 | Zachry Oil and Gas Properties only | Ozona, NE. (Canyon 7520) | Crockett | 1 | 1.57K | 218K | May 2005 – Aug 2026 |
| Rashap, Frank, Jr. G-9-62820 | Zachry Oil and Gas Properties only | Allison, South (Detrital) | Terrell | 1 | 1.48K | 250K | by Jan 1993 – Jul 2025 |
| Sinclair Clayton "11" G-9-213215 | Zachry Oil and Gas Properties only | Ozona, NE. (Canyon 7520) | Crockett | 1 | 1.29K | 235K | Jul 2005 – May 2022 |
| Sinclair-Clayton G-9-163933 | Zachry Oil and Gas Properties only | Ozona, NE. (Canyon 7520) | Crockett | 1 | 1.27K | 304K | Jul 1997 – Jan 2022 |
| Korenek, L. G-3-212096 | Zachry Exploration, Ltd. only | Danbury Dome (5655 Sand) | Brazoria | 1 | 1K | 66K | Apr 2005 – Dec 2006 |
| H.B. Zachry Unit G-4-155951 | North Central Oil Corp. only | Rodriguez (Lobo 6) | Webb | 1 | 994 | 528K | Jun 1995 – Jan 2001 |
| Shell-Clayton G-9-44080 | Zachry Oil and Gas Properties only | Ozona, NE. (Canyon 7520) | Schleicher | 1 | 923 | 221K | by Jan 1993 – Jan 2022 |
| Clayton G-9-40682 | Zachry Oil and Gas Properties only | Ozona, NE. (Canyon 7520) | Crockett | 1 | 848 | 178K | by Jan 1993 – Jan 2022 |
| Wittenburg Unit G-2-239239 | Zachry Exploration, LLC only | Collier (Yegua Y-3) | Jackson | 1 | 796 | 63.5K | Aug 2008 – Oct 2009 |
| Sinclair-Clayton G-9-44961 | Zachry Oil and Gas Properties only | Ozona, NE. (Canyon 7520) | Crockett | 1 | 774 | 237K | by Jan 1993 – Aug 2026 |
| Sinclair Clayton "10" G-9-211205 | Zachry Oil and Gas Properties only | Ozona, NE. (Canyon 7520) | Crockett | 1 | 757 | 138K | May 2005 – Aug 2026 |
| Zachry G-4-67069 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 721 | 749K | Feb 1993 – Aug 2015 |
| Sinclair-Clayton G-9-44959 | Zachry Oil and Gas Properties only | Ozona, NE. (Canyon 7520) | Crockett | 1 | 542 | 213K | by Jan 1993 – Jan 2022 |
| Mayer G-9-222182 | Zachry Oil and Gas Properties only | Mayer Ranch (Canyon) | Sutton | 1 | 539 | 696K | Sep 2006 – Aug 2026 |
| Thomas Heirs G-3-193550 | Zachry Exploration, Ltd. only | Chesterville (M-4100) | Colorado | 1 | 410 | 6.85K | Feb 2003 – Aug 2004 |
| Shell-Clayton G-9-44960 | Zachry Oil and Gas Properties only | Ozona, NE. (Canyon 7520) | Crockett | 1 | 409 | 194K | by Jan 1993 – Aug 2026 |