| Mustang Island State Park Tr. 2 G-4-124926 | Lamay Corporation only | Shell Point (Mid. H) | Nueces | 1 | 0 | 1.42M | Jan 1993 – Aug 2021 |
| Boston Texas Land & Trust G-4-125202 | Shell Western E&P Inc. only | Javelina ( Vicksburg V-4) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Oct 1993 |
| Woods, Christian G-4-125252 | Shell Western E&P only | McAllen Ranch (Vicksburg S) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Mar 2002 |
| Woods, Christian G-4-125256 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg N) | Hidalgo | 1 | 0 | 0 | Jan 1993 – May 1996 |
| Wernecke - Weatherby G.U. G-4-125257 | Shell Western E&P Inc. only | Rosita, NW (Wilcox R-S-U Cons.) | Duval | 1 | 0 | 24.8K | Jan 1993 – Mar 1997 |
| Dixie Mortgage-Pawelek Gas Unit G-4-125979 | Shell Western E&P only | McCooke, E. (Vicksburg 10,000) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Sep 2005 |
| Christian, Woods G-4-126521 | Shell Western E&P only | McAllen Ranch (Vicksburg Q) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Feb 2002 |
| Rife, Thomas et al Gas Unit G-4-126903 | Shell Western E&P Inc. only | Rincon, North (Vicksburg 7900) | Starr | 1 | 0 | 0 | Jan 1993 – May 1994 |
| Guerra, E.E. G-4-127251 | Shell Western E&P Inc. only | McAllen Ranch (Guerra) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Nov 1995 |
| Judd Estate -State G-4-127684 | Shell Western E&P Inc. only | La Copita (Vicksburg U) | Starr | 1 | 0 | 0 | Jan 1993 – May 1993 |
| McAllen, A.A. "B" G-4-128390 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg P,n.) | Hidalgo | 1 | 0 | 120K | Jan 1993 – May 1999 |
| Garza, A.M. State G-4-128488 | Shell Western E&P Inc. only | Rincon, North (5900) | Starr | 1 | 0 | 0 | Jan 1993 – Apr 1993 |
| McAllen, A.A. (SWD) G-4-130065 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg R-3) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Dec 1997 |
| Davenport Heirs G-4-130354 | Shell Western E&P only | Hinde, West (Vicksburg 7600) | Starr | 1 | 0 | 0 | Jan 1993 – Dec 2006 |
| McAllen, A.A. G-4-130682 | Shell Western E&P only | McAllen Ranch(vicksburg-U-V-,se) | Hidalgo | 1 | 0 | 85.3K | Jan 1993 – Mar 2002 |
| Rio Grande Gas Unit II G-4-131816 | Shell Western E&P Inc. only | San Salvador (8800) | Hidalgo | 1 | 0 | 599K | Jan 1993 – Sep 1996 |
| Rio Grande Gas Unit II G-4-135794 | Shell Western E&P Inc. only | San Salvador, SW. (6500) | Hidalgo | 1 | 0 | 34.1K | Jan 1993 – Sep 1996 |
| Woods Christian G-4-135979 | Shell Western E&P only | McAllen Ranch (Vicksburg K Cons) | Hidalgo | 1 | 0 | 321K | Jan 1993 – Jan 2001 |
| State Slick "D" G-4-136030 | Shell Western E&P only | Hinde, West (Vicksburg 7600) | Starr | 1 | 0 | 112K | Jan 1993 – Jul 2007 |
| McAllen, A. A. G-4-136225 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg R) | Hidalgo | 1 | 0 | 39.4K | Jan 1993 – Jan 1994 |
| Christian, Woods G-4-136401 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg K Cons) | Hidalgo | 1 | 0 | 99.3K | Jan 1993 – Nov 1998 |
| Slick, T. B. Estate G-4-136881 | Shell Western E&P only | Hinde, West (Marker III Sd.) | Starr | 1 | 0 | 49.5K | Jan 1993 – Nov 2009 |
| McAllen, A. A. G-4-137558 | Shell Western E&P only | McAllen Ranch (Vicksburg S, SE.) | Hidalgo | 1 | 0 | 2.32M | Jan 1993 – Jul 2000 |
| Kilgore-Wernecke Gas Unit G-4-138299 | Shell Western E&P Inc. only | Rosita, N.W. (Wilcox X) | Duval | 1 | 0 | 881K | Jan 1993 – Dec 1996 |
| Rio Grande Gas Unit II G-4-138333 | Shell Western E&P Inc. only | San Salvador (7900) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Sep 1996 |
| Davenport, O. H. Heirs G-4-139401 | Shell Western E&P only | Hinde, West (Marker III Sd.) | Starr | 1 | 0 | 5.39K | Jan 1993 – Jun 2007 |
| Christian, Woods G-4-139433 | Shell Western E&P only | McAllen Ranch (Vicksburg N) | Hidalgo | 1 | 0 | 4.91M | Jan 1993 – Oct 2008 |
| McAllen, A.A. G-4-140068 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg P,n.) | Hidalgo | 1 | 0 | 54.4K | Jan 1993 – Sep 1993 |
| Hamman Ranch G-4-141162 | Shell Western E&P Inc. only | Monte Christo (Vksbg KK) | Hidalgo | 1 | 0 | 1.15M | Jan 1993 – Feb 1994 |
| McAllen Fieldwide Unit G-4-141569 | Shell Western E&P only | McAllen (Coke 5800 FB A) | Hidalgo | 1 | 0 | 57.5K | Jan 1993 – Dec 2006 |
| Jerico, Ltd. Gas Unit G-4-142222 | Shell Western E&P only | Cadre (Vicksburg Patriot) | Hidalgo | 1 | 0 | 23M | Jan 1993 – May 2007 |
| Lopez, Hector G-4-142823 | Shell Western E&P Inc. only | Lopez Ranch (Vksbg F1) | Brooks | 1 | 0 | 295K | Jan 1993 – Oct 1995 |
| Davenport, O. H. Heirs G-4-143013 | Shell Western E&P only | Hinde, West (Vicksburg 7) | Starr | 1 | 0 | 16.5K | Jan 1993 – Mar 2010 |
| McAllen, A. A. G-4-143186 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg Q) | Hidalgo | 1 | 0 | 4.74M | Jan 1993 – Jun 1998 |
| M.A. Hopkins Gas Unit G-4-143288 | Shell Western E&P Inc. only | McCook, E. (Vicksburg 11,300) | Hidalgo | 1 | 0 | 978K | Jan 1993 – May 1995 |
| Santa FE Ranch G-4-143574 | Shell Western E&P Inc. only | Santa FE, S. (Massive 2ND) | Brooks | 1 | 0 | 518K | Jan 1993 – Jun 1998 |
| Santa FE Ranch G-4-143637 | Shell Western E&P Inc. only | Santa FE (D-03) | Brooks | 1 | 0 | 66.8K | Jan 1993 – Dec 1998 |
| Christian, Woods G-4-144505 | Shell Western E&P Inc. only | La Reforma (T) | Hidalgo | 1 | 0 | 341K | Feb 1993 – Jan 1994 |
| Lopez, Hector G-4-144523 | Shell Western E&P Inc. only | Lopez Ranch (Vksbg F1) | Brooks | 1 | 0 | 217K | Feb 1993 – Sep 1995 |
| Jerico, Ltd. Gas Unit G-4-145427 | Shell Western E&P only | Cadre (Vicksburg Patriot) | Hidalgo | 1 | 0 | 7.44M | Mar 1993 – Jun 2009 |
| Lips, Barbaa "C" G-4-145429 | Shell Western E&P Inc. only | Lopez Ranch (Vksbg 11400) | Brooks | 1 | 0 | 529K | Apr 1993 – Dec 1993 |
| Santa FE Ranch G-4-145925 | Shell Western E&P Inc. only | Santa FE (C-47) | Brooks | 1 | 0 | 0 | Jun 1993 – Dec 1998 |
| Barbara Lips Gas Unit G-4-146661 | Shell Western E&P Inc. only | Lopez Ranch (Vksbg F1) | Brooks | 1 | 0 | 2M | Sep 1993 – Oct 1998 |
| Santa FE Ranch G-4-146675 | Shell Western E&P only | Santa FE, East (Massive 1ST 1) | Brooks | 1 | 0 | 2.79M | Aug 1993 – Oct 2013 |
| Southwest Farm & Ranch G-4-146713 | Shell Western E&P only | Hinde, West (Vicksburg 7) | Starr | 1 | 0 | 32.6K | Sep 1993 – Oct 2010 |
| C.G. Johnson Gas Unit No. 1 G-4-146718 | Shell Western E&P Inc. only | Wildcat | Hidalgo | 1 | 0 | 0 | Jan 1993 – Oct 1993 |
| McAllen, A. A. "B" G-4-147175 | Shell Western E&P only | McAllen Ranch (Vicksburg R) | Hidalgo | 1 | 0 | 660K | Oct 1993 – Dec 2000 |
| J.M. Schmidt Gas Unit G-4-147222 | Shell Western E&P Inc. only | Schmidt (Frio Vicksburg) | Hidalgo | 1 | 0 | 298K | Oct 1993 – Jun 1998 |
| Mc Allen, A.A. G-4-148027 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg S, S.) | Hidalgo | 1 | 0 | 5.98M | Jan 1994 – Sep 1997 |
| McAllen Fieldwide Unit G-4-148678 | Shell Western E&P only | McAllen (9400) | Hidalgo | 1 | 0 | 932K | Nov 1993 – Aug 2010 |