| Guerra GU "D" G-4-140904 | Coastal Oil & Gas Corporation only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 204K | Jan 1993 – Jul 1994 |
| Guerra GU "D" G-4-150324 | Coastal Oil & Gas Corporation only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 586K | Jun 1994 – Nov 1994 |
| Guerra-U.S.A. Gas Unit "D" G-4-155197 | El Paso E & P Company, L. P. only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 0 | Jul 1995 – Jun 2008 |
| U.S.A.-Guerra "B" Gas Unit G-4-155288 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 475K | May 1995 – Jun 2021 |
| Guerra-U.S.A. Gas Unit "D" G-4-155300 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 0 | Jul 1995 – Jul 2026 |
| Yzaguirre J. G-4-155371 | Dolphin Petroleum, LP only | Bob West (L-30, 31, 32, 33) | Zapata | 1 | 0 | 0 | Apr 1995 – Jul 2026 |
| State Park G-4-156398 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 6.31M | Jan 1995 – Jul 2026 |
| Guerra-U.S.A. Gas Unit "C" G-4-160864 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 8.07M | Mar 1996 – Jul 2026 |
| Guerra-U.S.A. Gas Unit "D" G-4-160884 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 5.47M | Oct 1996 – Jul 2026 |
| Guerra-U.S.A. Gas Unit "D" G-4-164383 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 6.48M | Apr 1997 – Jul 2026 |
| Guerra-U.S.A. Gas Unit "D" G-4-164834 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 0 | Sep 1996 – Jul 2026 |
| Guerra-U.S.A. Gas Unit "D" G-4-166625 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 5.1M | Oct 1996 – Jul 2026 |
| Guerra-U.S.A. Gas Unit "C" G-4-167581 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 2.05M | Apr 1997 – Jul 2026 |
| Guerra-U.S.A. Gas Unit "C" G-4-168764 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 3.84M | Jan 1998 – Jul 2026 |
| Guerra-U.S.A. Gas Unit "D" G-4-170331 | Cantera Operating, LLC only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 0 | Apr 1998 – Oct 2014 |
| Guerra-U.S.A. Gas Unit "D" G-4-170745 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 4.66M | May 1998 – Jul 2026 |
| Guerra-U.S.A. Gas Unit "C" G-4-170839 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 0 | Aug 1998 – Jul 2026 |
| Guerra-U.S.A. Gas Unit "D" G-4-171513 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 0 | Mar 1998 – Jul 2026 |
| Guerra-U.S.A. Gas Unit "C" G-4-172097 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 0 | Oct 1998 – Jul 2026 |
| Guerra-U.S.A. Gas Unit "C" G-4-172268 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 0 | Sep 1998 – Jul 2026 |
| Guerra-U.S.A. Gas Unit "C" G-4-172363 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 0 | Jun 1998 – Jul 2026 |
| Guerra-U.S.A. Gas Unit "D" G-4-173041 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 0 | Dec 1998 – Jul 2026 |
| Cow Creek Corporation, et Al. G-4-173644 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 0 | Jan 1999 – Jul 2026 |
| Cow Creek Corporation, et Al. G-4-176825 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 0 | Jan 2000 – Jul 2026 |
| Guerra-U.S.A. Gas Unit "D" G-4-192865 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 0 | Nov 2002 – Jul 2026 |
| Guerra-U.S.A. Gas Unit "C" G-4-194713 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 0 | Jul 2002 – Jul 2026 |
| Cow Creek Corporation et Al G-4-243539 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 0 | Jun 2008 – Jul 2026 |
| Guerra-USA Gas Unit "D" G-4-243752 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 0 | Mar 2008 – Jul 2026 |
| State Park G-4-257482 | Merit Energy Company only | Bob West (L-30, 31, 32, 33) | Starr | 1 | 0 | 0 | Sep 2010 – Jul 2026 |