| Robbins O-2-9316 | Cyber Enviro-Tech Inc only | Westhoff (Combined Associated) | Jackson | 6 | 551K | 963K | Mar 2009 – Nov 2024 |
| Westhoff, A. E. O-2-8941 | Projj Energy LLC only | Westhoff (Combined Associated) | Jackson | 10 | 294K | 1.6M | Dec 2004 – Jun 2023 |
| Robbins G-2-258723 | BXP Operating, LLC only | Westhoff (Combined Associated) | Jackson | 1 | 118K | 401K | Dec 2010 – Feb 2018 |
| Hasdorff "A" O-2-8971 | Proline Energy Resources Inc only | Westhoff (Combined Associated) | Jackson | 2 | 111K | 174K | Jun 2005 – Feb 2017 |
| Robbins G-2-256490 | BXP Operating, LLC only | Westhoff (Combined Associated) | Jackson | 1 | 77.1K | 292K | Jan 2010 – Sep 2015 |
| Graves, T.A. O-2-9251 | Viper S.W.D., LLC only | Westhoff (Combined Associated) | Jackson | 2 | 41.9K | 118K | Jul 2008 – Apr 2026 |
| Simons-Hafernick Unit O-2-10778 | Magnum Producing, LP only | Westhoff (Combined Associated) | Jackson | 1 | 23.4K | 97.9K | Feb 2014 – May 2017 |
| Westhoff, A. E. G-2-203592 | Projj Energy LLC only | Westhoff (Combined Associated) | Jackson | 1 | 23.4K | 541K | May 2004 – Nov 2021 |
| Westhoff, A. E. G-2-200918 | Projj Energy LLC only | Westhoff (Combined Associated) | Jackson | 1 | 23.2K | 314K | Jan 2004 – Nov 2021 |
| Schomburg-Navidad River Unit O-2-9182 | Progenies Operating LLC only | Westhoff (Combined Associated) | Jackson | 2 | 19.1K | 733K | Mar 2008 – Oct 2015 |
| Hasdorff "A" G-2-203210 | Proline Energy Resources Inc only | Westhoff (Combined Associated) | Jackson | 1 | 16.2K | 230K | Apr 2004 – Dec 2017 |
| Koop G-2-258520 | Columbus Energy, LLC only | Westhoff (Combined Associated) | Jackson | 1 | 14.8K | 459K | Oct 2010 – Jul 2018 |
| Stanford O-2-9179 | Viper S.W.D., LLC only | Westhoff (Combined Associated) | Jackson | 1 | 12.8K | 27.4K | Mar 2008 – Feb 2018 |
| Westhoff, A. E. G-2-196683 | Projj Energy LLC only | Westhoff (Combined Associated) | Jackson | 1 | 12.2K | 259K | May 2003 – Jun 2023 |
| Kallus O-2-9166 | Encon Services, Inc. only | Westhoff (Combined Associated) | Jackson | 1 | 12K | 11.9K | Apr 2007 – Oct 2009 |
| Westhoff, A.E. G-2-249411 | Atinum Operating, Inc. only | Westhoff (Combined Associated) | Jackson | 1 | 9.15K | 55.1K | Dec 2008 – Apr 2010 |
| Westhoff "A" O-2-9075 | Projj Energy LLC only | Westhoff (Combined Associated) | Jackson | 1 | 8.73K | 43.8K | Oct 2006 – Oct 2008 |
| Robbins G-2-271741 | Cyber Enviro-Tech Inc only | Westhoff (Combined Associated) | Jackson | 1 | 8.67K | 443K | Aug 2013 – Nov 2024 |
| Hasdorff "A" G-2-214304 | Proline Energy Resources Inc only | Westhoff (Combined Associated) | Jackson | 1 | 8.05K | 312K | Aug 2005 – Jan 2010 |
| Schomburg O-2-9355 | Progenies Operating LLC only | Westhoff (Combined Associated) | Jackson | 2 | 5.86K | 21.5K | Mar 2011 – Oct 2015 |
| Westhoff, A. E. G-2-155763 | Projj Energy LLC only | Westhoff (Combined Associated) | Jackson | 1 | 5.82K | 670K | Sep 1995 – Nov 2021 |
| Hackbarth O-2-12302 | Viper S.W.D., LLC only | Westhoff (Combined Associated) | Jackson | 1 | 4.19K | 0 | Jan 2022 – Mar 2026 |
| Westhoff, A. E. G-2-221934 | Projj Energy LLC only | Westhoff (Combined Associated) | Jackson | 1 | 3.44K | 21.8K | Aug 2006 – Nov 2021 |
| Hackbarth G-2-250766 | Sir Drake Oil and Gas Company only | Westhoff (Combined Associated) | Jackson | 1 | 2.14K | 150K | Jun 2009 – Jun 2020 |
| Kallus G-2-255284 | Contour Oil & Gas, LLC only | Westhoff (Combined Associated) | Jackson | 1 | 1.42K | 70.1K | Nov 2009 – Dec 2012 |
| Navidad River et Al G-2-252972 | Ambassador Petroleum, Inc. only | Westhoff (Combined Associated) | Jackson | 1 | 1.28K | 213K | Aug 2009 – Feb 2011 |
| Navidad River Unit G-2-234220 | Columbus Energy, LLC only | Westhoff (Combined Associated) | Jackson | 1 | 1.06K | 83.3K | Jan 2008 – Nov 2016 |
| Navidad River et Al O-2-9993 | Progenies Operating LLC only | Westhoff (Combined Associated) | Jackson | 2 | 1K | 150K | Mar 2011 – May 2015 |
| Westhoff, A. E. G-2-194618 | Projj Energy LLC only | Westhoff (Combined Associated) | Jackson | 1 | 952 | 106K | Mar 2003 – Nov 2021 |
| McDowell G-2-214981 | Proline Energy Resources Inc only | Westhoff (Combined Associated) | Jackson | 1 | 844 | 200K | Oct 2005 – Mar 2022 |
| Graves G-2-234225 | Viper S.W.D., LLC only | Westhoff (Combined Associated) | Jackson | 1 | 817 | 597K | Mar 2008 – Oct 2014 |
| McDowell G-2-250403 | Proline Energy Resources Inc only | Westhoff (Combined Associated) | Jackson | 1 | 636 | 139K | Jan 2009 – Oct 2019 |
| Hasdorff "A" G-2-225518 | Pintail Oil & Gas, LLC only | Westhoff (Combined Associated) | Jackson | 1 | 580 | 11.5K | Dec 2006 – Jul 2008 |
| Westoff, W. T. G-2-232869 | Encon Services, Inc. only | Westhoff (Combined Associated) | Jackson | 1 | 446 | 17.3K | Dec 2007 – Mar 2009 |
| Westhoff, A. E. G-2-162254 | Projj Energy LLC only | Westhoff (Combined Associated) | Jackson | 1 | 408 | 79.6K | Feb 1997 – Jan 2008 |
| McDowell G-2-216081 | Proline Energy Resources Inc only | Westhoff (Combined Associated) | Jackson | 1 | 384 | 159K | Oct 2005 – Oct 2008 |
| McDowell "A" G-2-247338 | Proline Energy Resources Inc only | Westhoff (Combined Associated) | Jackson | 1 | 370 | 941K | Nov 2008 – Mar 2022 |
| Kallus O-2-10832 | Contour Oil & Gas, LLC only | Westhoff (Combined Associated) | Jackson | 1 | 329 | 0 | Jul 2013 – Sep 2013 |
| Kallus G-2-226242 | Encon Services, Inc. only | Westhoff (Combined Associated) | Jackson | 1 | 314 | 6.02K | Mar 2007 – Mar 2007 |
| Schomburg O-2-9249 | Ambassador Petroleum, Inc. only | Westhoff (Combined Associated) | Jackson | 1 | 195 | 1.02K | Aug 2008 – Aug 2008 |
| Schomburg G-2-237420 | Ambassador Petroleum, Inc. only | Westhoff (Combined Associated) | Jackson | 1 | 192 | 17.9K | Jun 2008 – Aug 2008 |
| McDowell "A" G-2-235002 | Proline Energy Resources Inc only | Westhoff (Combined Associated) | Jackson | 1 | 163 | 264K | Dec 2007 – Oct 2020 |
| Hackbarth O-2-9236 | Ambassador Petroleum, Inc. only | Westhoff (Combined Associated) | Jackson | 1 | 115 | 17.7K | May 2008 – Dec 2008 |
| Graves, T.A. G-2-237272 | Ambassador Petroleum, Inc. only | Westhoff (Combined Associated) | Jackson | 1 | 44 | 119K | May 2008 – Dec 2009 |
| Schomburg G-2-245449 | Ambassador Petroleum, Inc. only | Westhoff (Combined Associated) | Jackson | 1 | 17 | 201K | Sep 2008 – Aug 2010 |
| Hackbarth G-2-247519 | Viper S.W.D., LLC only | Westhoff (Combined Associated) | Jackson | 1 | 0 | 98.3K | Jan 2009 – Jun 2011 |
| Graves, T.A. O-2-9237 | Ambassador Petroleum, Inc. only | Westhoff (Combined Associated) | Jackson | 1 | 0 | 0 | — |
| Schomburg-Navidad River Unit G-2-242038 | Ambassador Petroleum, Inc. only | Westhoff (Combined Associated) | Jackson | 1 | 0 | 78.4K | Aug 2008 – Feb 2009 |
| Schomburg - Navidad River Unit O-2-9337 | Ambassador Petroleum, Inc. only | Westhoff (Combined Associated) | Jackson | 1 | 0 | 0 | — |
| Kallus O-2-9656 | Encon Services, Inc. only | Westhoff (Combined Associated) | — | 0 | 0 | 0 | — |