| Guerra, F.B. "F" G-4-93739 | La Reforma (U) | Starr | 1 | 0 | 5.77K | Aug 1997 – Nov 2004 |
| Hill "A" G-4-127230 | McAllen Ranch (Guerra, E.) | Hidalgo | 1 | 27K | 1.55M | Jan 1993 – Feb 2004 |
| Vincik, A.R. G-2-198945 | Bennview, E. (6450 Frio) | Jackson | 1 | 2.27K | 54.3K | Apr 2003 – Jan 2004 |
| Hill "B" G.U. G-4-128050 | McAllen Ranch (Guerra, E.) | Hidalgo | 1 | 3.78K | 470K | Jan 1993 – Dec 2003 |
| Goldston G-4-122551 | McAllen Ranch (Guerra, E.) | Hidalgo | 1 | 1.89K | 118K | Jan 1993 – Dec 2003 |
| Schaleben G-4-180506 | Los Indios (Vicksburg 8000) | Hidalgo | 1 | 2 | 2.63K | Oct 2000 – Sep 2003 |
| Corbett Fryer Dobbin Unit G-4-160448 | La Sal Vieja (9 9935-10000) | Willacy | 1 | 4.36K | 1.75M | Oct 1996 – Dec 2002 |
| Beaurline, A. W. G-4-50439 | Los Indios, W. (MF- 51) | Hidalgo | 1 | 7.07K | 340K | Jan 1993 – Aug 2002 |
| Rochelle G-2-191739 | Wildcat | Lavaca | 1 | 0 | 22.7K | Jul 2001 – Aug 2002 |
| Guerra, A. "A" G-4-171996 | La Reforma (Vicksburg W4) | Starr | 1 | 0 | 49.3K | Oct 1998 – Mar 2002 |
| Hill G-4-132902 | Los Indios (K) | Hidalgo | 1 | 355 | 576K | Jan 1993 – Oct 1999 |
| Guerra, A. Jr. et al -A- G-4-161513 | La Reforma (L) | Starr | 1 | 0 | 363K | Nov 1996 – May 1999 |
| Goldston, W. L. et Al G-4-159359 | Los Indios (MF-62) | Hidalgo | 1 | 0 | 45K | Jul 1996 – Jan 1999 |
| Lopez, Hector G-4-95234 | Lopez Ranch (Vksbg 10900) | Brooks | 1 | 4.23K | 116K | Jan 1993 – Nov 1998 |
| Southwest Oil & Land Inc. G-4-159641 | Los Indios (L. Vicksburg AA) | Hidalgo | 1 | 635 | 498K | Apr 1996 – Oct 1998 |
| Guerra, A. "B" G-4-163734 | La Reforma (I) | Hidalgo | 1 | 0 | 7.8K | Jun 1997 – Jun 1998 |
| Goldston, W. L. et Al G-4-164793 | Los Indios (J) | Hidalgo | 1 | 0 | 3.39K | Jun 1997 – Apr 1998 |
| Guerra, A. "A" G-4-165161 | La Reforma (O) | Starr | 1 | 0 | 71.4K | Aug 1997 – Mar 1998 |
| Goldston, W.L. et Al G-4-133965 | Los Indios (M) | Hidalgo | 1 | 1 | 319K | Jan 1993 – Feb 1998 |
| Guerra A. "B" G-4-166340 | La Reforma, Deep (V-22) | Hidalgo | 1 | 0 | 76.5K | Sep 1997 – Feb 1998 |
| Goldston, W.L. et Al G-4-153376 | Los Indios (UF-140) | Hidalgo | 1 | 0 | 90.5K | Jan 1995 – Nov 1997 |
| Goldston, W. L. et Al G-4-160072 | Los Indios, W. (MF-22) | Hidalgo | 1 | 0 | 22.8K | Aug 1996 – Sep 1997 |
| A. Guerra "A" G-4-163716 | La Reforma (O) | Starr | 1 | 0 | 2.11K | Jun 1997 – Sep 1997 |
| Goldston, W. L. et Al G-4-160798 | Los Indios, W. (MF-133) | Hidalgo | 1 | 0 | 111K | Dec 1996 – Jul 1997 |
| Goldston, W.L. et Al G-4-160291 | Los Indios (M) | Hidalgo | 1 | 0 | 13.5K | Oct 1996 – May 1997 |
| Guerra, A., Jr. et al -A- G-4-163111 | La Reforma (P) | Starr | 1 | 0 | 2.86K | Feb 1997 – Mar 1997 |
| Goldston, W.L. et Al G-4-153370 | Los Indios (F) | Hidalgo | 1 | 0 | 626K | Feb 1995 – Mar 1997 |
| Guerra, F.B. Estate "B" G-4-160094 | La Reforma (S) | Starr | 1 | 0 | 778 | Aug 1996 – Mar 1997 |
| Goldston, W. L. et Al G-4-158704 | Los Indios (Vicksburg 12,600) | Hidalgo | 1 | 16 | 141K | Jul 1995 – Feb 1997 |
| Goldston, W.L. et Al G-4-164556 | Los Indios, W. (LF-5) | Hidalgo | 1 | 0 | 20.6K | Sep 1996 – Feb 1997 |
| Guerra, A. Jr., et al -A- G-4-146133 | La Reforma (E) | Starr | 1 | 74 | 75.2K | Jun 1993 – Jan 1997 |
| Goldston, W.L. et Al G-4-160277 | Los Indios, W. (UF-113) | Hidalgo | 1 | 0 | 66.3K | Oct 1996 – Jan 1997 |
| Goldston, W.L. et Al G-4-145013 | Los Indios, W. (MF-133) | Hidalgo | 1 | 0 | 69.8K | Apr 1993 – Oct 1996 |
| Goldston, W. L. et Al G-4-144263 | Los Indios (N. Res. 3) | Hidalgo | 1 | 0 | 196K | Jan 1993 – Sep 1996 |
| Goldston, W. L. et Al G-4-153373 | Los Indios (UF-140) | Hidalgo | 1 | 0 | 350K | Feb 1995 – Sep 1996 |
| Goldston, W. L. et Al G-4-153406 | Los Indios, W. (MF- 51) | Hidalgo | 1 | 0 | 54.8K | Feb 1995 – Aug 1996 |
| Goldston, W. L. et Al G-4-159323 | Los Indios (MF-105) | Hidalgo | 1 | 0 | 45.3K | Jun 1996 – Aug 1996 |
| Guerra, F.B. Estate -B- G-4-129658 | La Reforma (T,res. 3) | Starr | 1 | 0 | 217K | Jan 1993 – Aug 1996 |
| Schaleben G-4-133930 | Los Indios (Vicksburg 12,900) | Hidalgo | 1 | 0 | 142K | Feb 1993 – Aug 1996 |
| Goldston, W. L. et Al G-4-140505 | Los Indios (F) | Hidalgo | 1 | 0 | 99.9K | Jan 1993 – Aug 1996 |
| Goldston, W.L. et Al G-4-133966 | Los Indios (L) | Hidalgo | 1 | 0 | 48.7K | Jan 1993 – Jul 1996 |
| Goldston, W.L. et Al G-4-153403 | Los Indios (F-2) | Hidalgo | 1 | 0 | 284K | Feb 1995 – Jun 1996 |
| Goldston, W.L. et Al G-4-143397 | Los Indios (M) | Hidalgo | 1 | 0 | 31.4K | Jan 1993 – May 1996 |
| Goldston, W.L. et Al G-4-144948 | Los Indios (L) | Hidalgo | 1 | 0 | 10.1K | Apr 1993 – Jun 1994 |
| Guerra, F.B. Estate -B- G-4-130742 | La Reforma (R, Res. 2) | Starr | 1 | 0 | 90K | Jan 1993 – Oct 1993 |
| Schaleben G-4-160015 | Los Indios (Vicksburg Rosado) | Hidalgo | 1 | 0 | 0 | — |
| Goldston, W.L. G-4-128554 | Los Indios (D) | Hidalgo | 1 | 0 | 0 | — |
| Hill G-4-133864 | Los Indios, W. (MF-113) | Hidalgo | 1 | 0 | 0 | — |
| Goldston, W. L. et Al G-4-171130 | Los Indios (D) | Hidalgo | 1 | 0 | 0 | — |
| FNB Cincinnati G-4-76055 | La Jara (Frio) | Hidalgo | 1 | 0 | 0 | — |