| Gutierrez Heirs 37 G-4-164759 | Varas Energy Operating Company, only | Urebeno, South (Wilcox 7000) | Zapata | 1 | 43.8K | 9.21M | Sep 1997 – Nov 2025 |
| Gutierrez G-1-277786 | Single Barrel Oil and Gas LLC only | Sun T S H (Olmos) | La Salle | 1 | 40.3K | 679K | Jan 2013 – Aug 2026 |
| Gutierrez Heirs G-4-113810 | Varas Energy Operating Company, only | Urebeno, South (Wilcox 7000) | Zapata | 1 | 29.1K | 6.63M | by Jan 1993 – Aug 2026 |
| Diego Gutierrez, et al Gas Unit G-4-183938 | Hilcorp Energy Company only | Bashara-Hereford (7300) | Zapata | 1 | 28.2K | 3.08M | Jun 2001 – Aug 2026 |
| Gutierrez et Al G-4-216354 | Merit Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 20.3K | 2.12M | Dec 2005 – Aug 2026 |
| Gutierrez et Al G-4-228854 | Merit Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 13.2K | 990K | Jul 2007 – Aug 2026 |
| Gutierrez, J.M. G-4-115956 | Sojourner Drilling Corporation only | Travis Ward (Queen City) | Jim Hogg | 1 | 9.24K | 506K | by Jan 1993 – Jun 2021 |
| Gutierrez Heirs 37 G-4-183483 | Varas Energy Operating Company, only | Urebeno, South (Wilcox 7000) | Zapata | 1 | 9.23K | 1.82M | Jun 2001 – Aug 2026 |
| Gutierrez et Al G-4-216340 | Merit Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 8.96K | 1.3M | Dec 2005 – Aug 2026 |
| Leonardo-Gutierrez Gas Unit G-4-162158 | Hilcorp Energy Company only | Charco (9200) | Zapata | 1 | 8.35K | 2.71M | Feb 1997 – Jan 2006 |
| Gutierrez G-4-165078 | Marwell Petroleum Ltd Partnrship only | Draco (6200 Queen City ) | Starr | 1 | 8.32K | 727K | Feb 1997 – Nov 2014 |
| Gutierrez, J. M. Estate G-4-256831 | Mortimer Production Company only | Roadrunner (Basal Queen City) | Jim Hogg | 1 | 8.1K | 776K | Jun 2010 – Jul 2015 |
| Gutierrez E G-1-112228 | Petrovybe Opco LLC only | Sun T S H (Olmos) | La Salle | 1 | 7.78K | 360K | by Jan 1993 – Aug 2026 |
| Gutierrez D G-1-112227 | Petrovybe Opco LLC only | Sun T S H (Olmos) | La Salle | 1 | 7.49K | 566K | by Jan 1993 – Nov 2025 |
| Gutierrez, J.M. A G-4-145761 | Varas Energy Operating Company, only | Cinco de Mayo (Consolidated) | Zapata | 1 | 7.3K | 3.7M | Jun 1993 – May 2000 |
| Gutierrez, J. M. "C" G-4-166080 | Enron Oil & Gas Company only | Cinco de Mayo (Wilcox "E") | Zapata | 1 | 6.9K | 1.49M | Aug 1993 – Nov 1996 |
| Gutierrez Unit G-4-203842 | Hilcorp Energy Company only | Exsun (Lobo Cons.) | Zapata | 1 | 6.48K | 4.43M | Aug 2004 – Aug 2026 |
| Gutierrez, J.M. A G-4-145745 | Varas Energy Operating Company, only | Cinco de Mayo (Wilcox "F") | Zapata | 1 | 6.33K | 2.14M | May 1993 – Aug 2023 |
| Gutierrez B G-1-165568 | Petrovybe Opco LLC only | Sun T S H (Olmos) | La Salle | 1 | 6.11K | 276K | Nov 1997 – Aug 2026 |
| Gutierrez, J.M.C. G-4-144581 | Enron Oil & Gas Company only | Cinco de Mayo (Wilcox "F") | Zapata | 1 | 6K | 1.35M | Mar 1993 – Dec 1995 |
| Gutierrez G-4-233584 | Mortimer Production Company only | T Patch (Reklaw Oso) | Starr | 1 | 5.94K | 1.38M | Aug 2007 – Jun 2016 |
| Gutierrez F G-1-193512 | Petrovybe Opco LLC only | Sun T S H (Olmos) | La Salle | 1 | 5.54K | 660K | Dec 2002 – Aug 2026 |
| Gutierrez, J. M. "C" G-4-244624 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 5.38K | 792K | Nov 2008 – Dec 2025 |
| Gutierrez G-4-136377 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 5.3K | 2.64M | by Jan 1993 – Aug 2026 |
| Gutierrez, J. M. B G-4-146893 | Varas Energy Operating Company, only | Cinco de Mayo (Consolidated) | Zapata | 1 | 5.29K | 5.29M | Sep 1993 – Aug 2023 |
| Gutierrez A G-1-224980 | Petrovybe Opco LLC only | Sun T S H (Olmos) | La Salle | 1 | 4.7K | 320K | Nov 2006 – Aug 2026 |
| Gutierrez, J. M. A G-4-142619 | Varas Energy Operating Company, only | Cinco de Mayo (Consolidated) | Zapata | 1 | 4.6K | 5.16M | by Jan 1993 – Apr 2021 |
| Gutierrez, J.M. A G-4-142990 | Bluestone Natural Res. II, LLC only | Cinco de Mayo (Consolidated) | Zapata | 1 | 4.55K | 5.61M | by Jan 1993 – Sep 2011 |
| Gutierrez 37 G-4-162994 | Varas Energy Operating Company, only | Urebeno, South (Wilcox 7000) | Zapata | 1 | 4.24K | 2.49M | Apr 1997 – Aug 2026 |
| Gutierrez, J. M. "C" G-4-261893 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 4.16K | 5.06M | Jun 2011 – Aug 2026 |
| Gutierrez Gas Unit G-4-244186 | Wagner Oil Company only | Garcias Ridge (Queen City) | Starr | 1 | 3.95K | 101K | Dec 2008 – Aug 2026 |
| Gutierrez C G-1-214672 | Petrovybe Opco LLC only | Sun T S H (Olmos) | La Salle | 1 | 3.91K | 156K | Feb 2006 – Jul 2026 |
| Gutierrez, J.M. G-4-120092 | Sojourner Drilling Corporation only | Travis Ward (Queen City) | Jim Hogg | 1 | 3.87K | 22.2K | Jun 1994 – Oct 2023 |
| Gutierrez, J.M. C G-4-144991 | Varas Energy Operating Company, only | Cinco de Mayo (Consolidated) | Zapata | 1 | 3.76K | 4.32M | Mar 1993 – Aug 2023 |
| Gutierrez, J.M. A G-4-145520 | Varas Energy Operating Company, only | Cinco de Mayo (Consolidated) | Zapata | 1 | 3.75K | 2.8M | May 1993 – Mar 1997 |
| Gutierrez A G-1-169758 | Petrovybe Opco LLC only | Sun T S H (Olmos) | La Salle | 1 | 3.73K | 158K | May 1998 – Jul 2026 |
| Gutierrez, J. M. "C" G-4-267179 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 3.69K | 5.17M | Feb 2012 – Aug 2026 |
| Gutierrez, J. M. "C" G-4-246975 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 3.52K | 266K | Jan 2009 – Aug 2026 |
| Gutierrez E G-1-245781 | Petrovybe Opco LLC only | Sun T S H (Olmos) | La Salle | 1 | 3.4K | 327K | Jun 2008 – Aug 2026 |
| VT Gutierrez, Raymond G-1-187445 | Lewis Petro Properties, Inc. only | Sun T S H (Olmos) | La Salle | 1 | 3.31K | 239K | Nov 2001 – Aug 2026 |
| Gutierrez G-4-114747 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 3.27K | 279K | by Jan 1993 – Nov 1997 |
| Gutierrez, J.M. B G-4-142564 | Enron Oil & Gas Company only | Cinco de Mayo (Wilcox "E") | Zapata | 1 | 3.14K | 1.78M | by Jan 1993 – Nov 1996 |
| Gutierrez, J. M. C G-4-144162 | Enron Oil & Gas Company only | Cinco de Mayo (Wilcox "C") | Zapata | 1 | 2.72K | 1.38M | by Jan 1993 – Mar 1995 |
| Gutierrez, J.M. A G-4-142986 | Enron Oil & Gas Company only | Cinco de Mayo (Wilcox "C") | Zapata | 1 | 2.68K | 4.62M | by Jan 1993 – Nov 1996 |
| Gutierrez, J. M. C G-4-144237 | Varas Energy Operating Company, only | Cinco de Mayo (Consolidated) | Zapata | 1 | 2.61K | 4.5M | by Jan 1993 – Jun 1998 |
| Gutierrez, J.M. G-4-117871 | Sojourner Drilling Corporation only | Travis Ward (Queen City) | Jim Hogg | 1 | 2.53K | 775K | by Jan 1993 – Mar 2021 |
| VT Gutierrez, Raymond G-1-243077 | Lewis Petro Properties, Inc. only | Sun T S H (Olmos) | La Salle | 1 | 2.52K | 274K | Nov 2008 – Aug 2026 |
| King-Gutierrez Gas Unit G-4-174134 | Hilcorp Energy Company only | La Perla (Lobo Cons.) | Zapata | 1 | 2.41K | 784K | Sep 1999 – Aug 2026 |
| Gutierrez, J.M. A G-4-142599 | Varas Energy Operating Company, only | Cinco de Mayo (Consolidated) | Zapata | 1 | 2.35K | 6.33M | by Jan 1993 – Feb 2025 |
| Gutierrez G-4-234479 | Mortimer Production Company only | T Patch (Reklaw Oso) | Starr | 1 | 2.2K | 408K | Jan 2008 – Aug 2026 |