| Risken, Carl F. G-4-78486 | Exxon Mobil Corporation only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 3.42M | Jan 1993 – Feb 2006 |
| Riskin, Carl F. G-4-90388 | Exxon Mobil Corporation only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 1.46M | Jan 1993 – Jan 2006 |
| Kenedy, John G. "J" G-4-114840 | Exxon Mobil Corporation only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 1.4M | Jan 1993 – Jan 2005 |
| Kenedy,john G. Jr. "J" G-4-170624 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 7.11M | Aug 1998 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-174530 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 15.2M | May 1999 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-176928 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 13.4M | Jan 2000 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-178410 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 8.61M | Jun 2000 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-179430 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 6.92M | Mar 2000 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-179559 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 8.6M | Jul 2000 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-180036 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 13.4M | Sep 2000 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-182482 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 6.87M | Nov 2000 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-185238 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 1.8M | Apr 2001 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-186028 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 7.41M | Jun 2001 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-186225 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 8.31M | Aug 2001 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-188195 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 6.23M | Dec 2001 – Jul 2026 |
| Kenedy, John G. Jr. "K" G-4-188197 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 2.37M | Sep 2001 – Nov 2024 |
| Kenedy, John G. Jr. "J" G-4-189019 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 3.39M | Apr 2002 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-189572 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 7.96M | Jan 2002 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-189813 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 10.7M | May 2002 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-193832 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 936K | Oct 2002 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-194518 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 945K | Aug 2002 – Jul 2026 |
| Kenedy, John G. Jr. " J " G-4-195878 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 4.1M | Feb 2003 – Apr 2026 |
| Risken, Carl F. G-4-197496 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 6.55M | Dec 2002 – Jul 2026 |
| Kenedy, John G., Jr. "F" G-4-197513 | Headington Oil Company LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 493K | Aug 2003 – Oct 2014 |
| John G. Kenedy, Jr. "E" G-4-198083 | Exxon Mobil Corporation only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 0 | Oct 2003 – Oct 2003 |
| Kenedy, John G. Jr. "E" G-4-198150 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 4.67M | Oct 2003 – Jul 2026 |
| Risken, Carl F. G-4-198408 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 6.37M | May 2003 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-201076 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 15.3M | Jan 2004 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-201142 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 5.29M | Mar 2004 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-203524 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 4.12M | May 2004 – Apr 2026 |
| Kenedy, John G. Jr. "J" G-4-205444 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 5.13M | Aug 2004 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-206820 | Headington Oil Company LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 1.59M | Oct 2004 – Sep 2014 |
| Kenedy, John G. Jr. "J" G-4-209783 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 3.87M | Feb 2005 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-212634 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 1.39M | May 2005 – Mar 2026 |
| Kenedy, John G. Jr. "J" G-4-213100 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 4.41M | Feb 2005 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-221188 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 1.33M | May 2006 – Jul 2026 |
| Kenedy, John G. Jr. "E" G-4-223870 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 2.77M | Oct 2006 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-223917 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 4.1M | May 2006 – Jul 2026 |
| Kenedy, John G. Jr. "E" G-4-224324 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 3.12M | Jul 2006 – Jul 2026 |
| John G. Kenedy, Jr. "J" G-4-224963 | Headington Oil Company LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 102K | Feb 2007 – Sep 2014 |
| Kenedy, John G. Jr. "J" G-4-228407 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 2.17M | Feb 2007 – Jul 2026 |
| Kenedy, John G. Jr. "E" G-4-234061 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 4.23M | Dec 2007 – Jul 2026 |
| Kenedy, John G. Jr. "E" G-4-236755 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 9.46M | Sep 2007 – Jul 2026 |
| Kenedy, John G. Jr. "E" G-4-237397 | Headington Oil Company LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 569K | Apr 2008 – Oct 2014 |
| Kenedy, John G. Jr. "E" G-4-241993 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 678K | Aug 2008 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-244507 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 338K | Sep 2008 – Jul 2026 |
| Kenedy, John G. Jr. "E" G-4-247495 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 0 | Sep 2007 – Jul 2026 |
| Kenedy, John G. Jr. "J" G-4-254214 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 5.64M | Dec 2008 – Jul 2026 |
| Kenedy, John G. Jr. "C" G-4-286574 | Headington Energy Partners, LLC only | El Paistle, Deep (Frio) | Kenedy | 1 | 0 | 353K | Apr 2019 – Jul 2026 |