| McAllen, A. A. G-4-158393 | Shell Western E&P only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 0 | 506K | Apr 1996 – Aug 2006 |
| McAllen, A.A. G-4-157782 | Shell Western E&P only | McAllen Ranch(vicksburg-U-V-,se) | Hidalgo | 1 | 0 | 145K | Feb 1996 – Mar 2002 |
| Mustang Island State Park TR 2 G-4-102472 | Lamay Corporation only | Shell Point (G-1) | Nueces | 1 | 0 | 0 | Jan 1993 – Jul 2026 |
| McAllen, A. A. G-4-156734 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg S, SE.) | Hidalgo | 1 | 0 | 86.3K | Dec 1995 – Aug 1996 |
| Hinojosa, G. G. G-4-156407 | Shell Western E&P Inc. only | Fandango, East | Zapata | 1 | 0 | 0 | Apr 1995 – Feb 1996 |
| State Slick "D" G-4-99981 | Shell Western E&P only | Hinde (Vicksburg Consolidated) | Starr | 1 | 0 | 14.6K | Jan 1993 – Jun 2008 |
| McAllen Fieldwide Unit G-4-41185 | Shell Western E&P only | McAllen (Marks FB C) | — | 1 | 0 | 1.65M | Jan 1993 – Nov 2006 |
| McAllen, A.A. G-4-156005 | Shell Western E&P only | McAllen Ranch (Vicksburg S, S.) | Hidalgo | 1 | 0 | 2.94M | Oct 1995 – May 2000 |
| Lopez, Hector G-4-155751 | Shell Western E&P Inc. only | Lopez Ranch (Vksbg 11400) | Brooks | 1 | 0 | 4.84K | Sep 1995 – Apr 1997 |
| Lopez, Hector G-4-99074 | Shell Western E&P Inc. only | Lopez Ranch (Vksbg 10900) | Brooks | 1 | 0 | 0 | Jan 1993 – Apr 1997 |
| Woods Christian G-4-155246 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg L) | Hidalgo | 1 | 0 | 1.22M | Aug 1995 – May 1996 |
| Slick, T.B. Estate G-4-154136 | Shell Western E&P only | Hinde (Vicksburg Consolidated) | Starr | 1 | 0 | 138K | Jan 1995 – Dec 2006 |
| Christian, Woods G-4-96191 | Shell Western E&P only | McAllen Ranch (Vicksburg S) | Hidalgo | 1 | 0 | 428K | Jan 1993 – Jun 2000 |
| Chapman, J. O. G-4-38433 | Shell Western E&P Inc. only | Mobil-David, W. (Howell Hight) | Nueces | 1 | 0 | 0 | Jan 1993 – Jan 1997 |
| Poo&g-Shell F A Knoche GU #1 G-3-69041 | Cactus Energy Corporation only | Rock Island, W. (Wilcox 9900) | Colorado | 1 | 0 | 0 | Jan 1993 – May 2007 |
| Drushell, S. G. -a- O/A G-2-84313 | P&B Petroleum LLC only | Cordele (M-1U) | — | 1 | 0 | 360 | Jan 1993 – Jul 2026 |
| Shelly, T. P. G-2-3914 | Wyrick & Hughes only | Refugio Heard (4600) | — | 1 | 0 | 0 | Jan 1993 – Jul 2026 |
| Shell Chittim G-1-260007 | Blackbrush O & G, LLC only | Wildcat | Maverick | 1 | 0 | 213 | Jul 2010 – Sep 2016 |
| Chapman, J. O. G-4-153880 | Shell Western E&P Inc. only | Chapman Ranch (8600) | Nueces | 1 | 0 | 13.8K | Mar 1995 – Mar 1998 |
| Lips, Barbara "C" (Ecr) G-4-153647 | Shell Western E&P Inc. only | El Coyote (Vicksburg E-F Cons.) | Brooks | 1 | 0 | 581K | Oct 1994 – May 1996 |
| McAllen, A.A. G-4-94774 | Shell Western E&P only | McAllen Ranch (Vicksburg S, SE.) | Hidalgo | 1 | 0 | 1.85M | Jan 1993 – Mar 2002 |
| Jerico, Ltd Gas Unit G-4-152412 | Shell Western E&P only | Cadre (Vicksburg Patriot) | Hidalgo | 1 | 0 | 1.9M | Nov 1994 – Jul 2009 |
| Woods Christian G-4-152218 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg L) | Hidalgo | 1 | 0 | 64.3K | Nov 1994 – May 1996 |
| Bright & Schiff Hamman G.U. G-4-93764 | Shell Western E&P Inc. only | Monte Christo (Vksbg-Eckart) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Jun 1993 |
| McAllen, A. A. G-4-37083 | Shell Western E&P only | McAllen Ranch (Vksbg P-V,s Cons) | — | 1 | 0 | 3.2M | Jan 1993 – Jan 2006 |
| Barbara Lips Gas Unit G-4-151767 | Shell Western E&P Inc. only | Lopez Ranch (Vksbg 11400) | Brooks | 1 | 0 | 877K | Aug 1994 – Jan 1995 |
| Pharr Fieldwide Unit G-4-151646 | Shell Western E&P only | Pharr(hanson) | Hidalgo | 1 | 0 | 1.47M | May 1994 – Nov 2010 |
| Martinez-State G-4-92978 | Shell Western E&P only | Rincon, N. (Vicksburg Cons.) | Starr | 1 | 0 | 202K | Jan 1993 – Oct 2005 |
| Christian, Woods G-4-151442 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg S) | Hidalgo | 1 | 0 | 79.4K | Oct 1994 – Jan 1998 |
| Mustang Island State Park Tr. 2 G-4-150935 | Lamay Corporation only | Shell Point (6-B) | Nueces | 1 | 0 | 37.7K | Sep 1994 – Feb 2005 |
| Christian, Woods G-4-92246 | Shell Western E&P Inc. only | Guadalupe (Vicksburg L) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Feb 1993 |
| Santa FE Ranch G-4-36231 | Shell Western E&P only | Santa FE, East (Massive 1ST 5) | Brooks | 1 | 0 | 0 | Jan 1993 – Feb 2004 |
| Shell Point Unit G-3-60674 | Bridge Oil Company, L. P. only | Rattlesnake Mound, W. (Schenck) | — | 1 | 0 | 0 | Jan 1993 – Jan 1993 |
| McAllen, A. A. "A" G-4-150919 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg K Cons) | Hidalgo | 1 | 0 | 1.54M | Aug 1994 – May 1997 |
| J. C. Mann Gas Unit G-4-150816 | Shell Western E&P only | Cadre (Vicksburg Patriot) | Hidalgo | 1 | 0 | 1.2M | Aug 1994 – Oct 2001 |
| Lips, Barbara "B" G-4-89858 | Shell Western E&P Inc. only | Lopez Ranch (Vksbg 12250) | Brooks | 1 | 0 | 0 | Jan 1993 – Apr 1993 |
| McAllen, A. A. G-4-149439 | Shell Western E&P only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 0 | 12.6M | Apr 1994 – May 2006 |
| Hamman Ranch G-4-148914 | Shell Western E&P Inc. only | Monte Christo (9000-A) | Hidalgo | 1 | 0 | 44.2K | Feb 1994 – Jul 1994 |
| Lloyd, F. B. G-4-89818 | Shell Western E&P Inc. only | Rosita, NW (Wilcox R-S-U Cons.) | Duval | 1 | 0 | 0 | Jan 1993 – Feb 1997 |
| McAllen, A. A. G-4-34507 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg S) | — | 1 | 0 | 219K | Jan 1993 – Jun 1997 |
| McAllen Fieldwide Unit G-4-148678 | Shell Western E&P only | McAllen (9400) | Hidalgo | 1 | 0 | 932K | Nov 1993 – Aug 2010 |
| 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 |
| Davis, W.J. G-4-88723 | Shell Western E&P only | McCook, E. (Vicksburg 13,700) | Hidalgo | 1 | 0 | 1.14M | Jan 1993 – Sep 2008 |
| 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 |
| McAllen, A. A. "B" G-4-147175 | Shell Western E&P only | McAllen Ranch (Vicksburg R) | Hidalgo | 1 | 0 | 660K | Oct 1993 – Dec 2000 |
| Christian, Woods G-4-88720 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg Q) | Hidalgo | 1 | 0 | 0 | Jan 1993 – May 1993 |
| Santa FE Ranch G-4-33207 | Shell Western E&P Inc. only | Santa FE, East (Massive 1ST 5) | Brooks | 1 | 0 | 118K | Jan 1993 – Mar 1998 |
| Marcia-Shelly (SA) Unit 1 G-2-297714 | FW Eagle Ford I, LLC only | Eagleville (Eagle Ford-2) | Lavaca | 1 | 0 | 1.22M | Jan 2019 – Jul 2026 |
| M & O Gas Unit G-2-50662 | Shell Western E&P Inc. only | Ganado (3675) | — | 1 | 0 | 0 | Jan 1993 – May 1997 |
| Cummins-V G-10-43217 | Shell Western E&P only | Goldsmith, N. (San Andres, Con.) | — | 0 | 0 | 14.1K | Apr 2013 – Apr 2013 |