| Decarreon, G. G. G-4-78840 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 6.31M | Jan 1993 – Jul 2026 |
| Gutierrez, B. G. G-4-83182 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 300K | Jan 1993 – Jul 2026 |
| Rathmell, J.G. G-4-83214 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 1.79M | Jan 1993 – Jul 2026 |
| Rathmell, J. G. G-4-88128 | Pogo Producing Company LLC only | Hundido (9300) | Zapata | 1 | 0 | 1.12M | Jan 1993 – May 2010 |
| Decarreon, G. G. G-4-92281 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 1.92M | Jan 1993 – Jul 2026 |
| Marshall, S. G. G-4-107214 | EOG Resources, Inc. only | Hundido (9300) | Zapata | 1 | 0 | 136K | Jan 1993 – May 2002 |
| Rathmell, J. G. G-4-110745 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 930K | Jan 1993 – Jul 2026 |
| Martinez, S. G-4-110746 | Varas Energy Operating Company, only | Hundido (9300) | Zapata | 1 | 0 | 449K | Jan 1993 – Jul 2026 |
| Martinez, S. A G-4-142847 | EOG Resources, Inc. only | Hundido (9300) | Zapata | 1 | 0 | 141K | Jan 1993 – Mar 2002 |
| Benavides, Belia R. B G-4-143730 | Varas Energy Operating Company, only | Hundido (9300) | Zapata | 1 | 0 | 1.47M | Jan 1993 – Jul 2026 |
| Benavides, Belia R. B G-4-143731 | Varas Energy Operating Company, only | Hundido (9300) | Zapata | 1 | 0 | 3.22M | Jan 1993 – Jul 2026 |
| Benavides, Belia R. B G-4-144453 | Varas Energy Operating Company, only | Hundido (9300) | Zapata | 1 | 0 | 4.51M | Jan 1993 – Jul 2026 |
| Decarreon, G. G. G-4-145773 | North Central Oil Corp. only | Hundido (9300) | Zapata | 1 | 0 | 508K | May 1993 – Jun 2000 |
| Rathmell, J.G. G-4-146966 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 5.81M | Oct 1993 – Jul 2026 |
| Benavides, Belia R. B G-4-151388 | Varas Energy Operating Company, only | Hundido (9300) | Zapata | 1 | 0 | 1.34M | Sep 1994 – Jul 2026 |
| Rathmell, J.G. G-4-152526 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 2.21M | Dec 1994 – Jul 2026 |
| Rathmell, J. G. G-4-152919 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 2M | Jan 1995 – Jul 2026 |
| Benavides, Belia R. "B" G-4-154425 | Varas Energy Operating Company, only | Hundido (9300) | Zapata | 1 | 0 | 36 | May 1995 – Jul 2026 |
| Benavides, Belia R. "B" G-4-154924 | Varas Energy Operating Company, only | Hundido (9300) | Zapata | 1 | 0 | 0 | Jun 1995 – Jul 2026 |
| Rathmell, J.G. G-4-155278 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 3.76M | Jul 1995 – Jul 2026 |
| Benavides, Belia R. "B" G-4-156882 | Varas Energy Operating Company, only | Hundido (9300) | Zapata | 1 | 0 | 0 | Nov 1995 – Jul 2026 |
| Rathmell, J.G. G-4-157423 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 0 | Oct 1995 – Jul 2026 |
| Benavides, Belia R. "B" G-4-158107 | Varas Energy Operating Company, only | Hundido (9300) | Zapata | 1 | 0 | 703K | Mar 1996 – Jul 2026 |
| Benavides, Bela R. "B" G-4-159489 | Varas Energy Operating Company, only | Hundido (9300) | Zapata | 1 | 0 | 0 | Jun 1996 – Jul 2026 |
| Rathmell, J. G. G-4-162127 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 5.25M | Jan 1997 – Jul 2026 |
| Rathmell, J. G. G-4-162678 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 3.23M | Mar 1997 – Jul 2026 |
| Rathmell, J. G. G-4-162679 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 2.05M | Apr 1997 – Jul 2026 |
| Gutierrez, B. G. G-4-164815 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 47.8K | Oct 1997 – Jul 2026 |
| Decarreon, G. G. G-4-165185 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 181K | Oct 1997 – Jul 2026 |
| Sanchez-McMurrey G-4-165377 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 0 | Sep 1997 – Jul 2026 |
| Rathmell, J. G. G-4-172597 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 88.5K | Mar 1999 – Jul 2026 |
| Rathmell, J. G. G-4-172943 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 306K | May 1999 – Jul 2026 |
| Sanchez-McMurrey G-4-173100 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 7.96K | Apr 1999 – Jul 2026 |
| Decarreon, G. G. G-4-173164 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 510K | May 1999 – Jul 2026 |
| Sanchez-McMurrey G-4-173324 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 13.7K | Jun 1999 – Jul 2026 |
| Decarreon, G. G. G-4-175504 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 96.5K | Dec 1999 – Jul 2026 |
| Jaral G-4-176031 | EOG Resources, Inc. only | Hundido (9300) | Webb | 1 | 0 | 0 | Dec 1999 – Feb 2000 |
| Rathmell, J. G. G-4-177047 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 3.61M | May 2000 – Jul 2026 |
| Benavides, Belia R. "B" G-4-177295 | Varas Energy Operating Company, only | Hundido (9300) | Zapata | 1 | 0 | 23.8K | Apr 2000 – Jul 2026 |
| Rathmell, J. G. G-4-178046 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 0 | Jun 2000 – Jul 2026 |
| Rathmell, J. G. G-4-179259 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 0 | Oct 2000 – Jul 2026 |
| McMurrey- Talbert G-4-179284 | North Central Oil Corp. only | Hundido (9300) | Zapata | 1 | 0 | 0 | Oct 2000 – Jun 2002 |
| Decarreon, G. G. G-4-179400 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 0 | Oct 2000 – Jul 2026 |
| Rathmell, J. G. G-4-179723 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 0 | Nov 2000 – Jul 2026 |
| Rathmell, J. G. G-4-182236 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 0 | Mar 2001 – Jul 2026 |
| Rathmell, J. G. G-4-182478 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 0 | Apr 2001 – Jul 2026 |
| Sanchez-McMurrey G-4-182945 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 0 | May 2001 – Jul 2026 |
| Rathmell, J. G. G-4-184419 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 0 | Sep 2001 – Jul 2026 |
| Rathmell, J. G. G-4-184521 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 0 | Jun 2001 – Jul 2026 |
| Sanchez - McMurrey G-4-184873 | Merit Energy Company only | Hundido (9300) | Zapata | 1 | 0 | 0 | Sep 2001 – Jul 2026 |