| Christian, Woods G-4-11970 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg Q) | Hidalgo | 1 | 0 | 1.65M | Jan 1993 – Nov 1997 |
| McAllen, A. A. G-4-53154 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg T, SE.) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Jul 1997 |
| McAllen, A. A. G-4-54803 | Shell Western E&P only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 0 | 712K | Jan 1993 – Feb 2006 |
| McAllen, A. A. G-4-54906 | Shell Western E&P only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 0 | 65.7K | Jan 1993 – Mar 2011 |
| McAllen, A. A. G-4-55456 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg S, S.) | Hidalgo | 1 | 0 | 88.2K | Jan 1993 – Dec 1996 |
| Mc Allen, A. A. G-4-56380 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg R Cent) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Jun 1998 |
| McAllen, A.A. G-4-56863 | Shell Western E&P only | McAllen Ranch (Vicksburg S) | Hidalgo | 1 | 0 | 15.3K | Jan 1993 – Aug 2001 |
| Hopkins, M.A. Gas Unit G-4-65513 | Shell Western E&P Inc. only | McCook, E. (Vicksburg, Lo.-Y) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Jan 1997 |
| McAllen, A. A. G-4-67649 | Shell Western E&P only | McAllen Ranch (Vicksburg S, SE.) | Hidalgo | 1 | 0 | 173K | Jan 1993 – May 2000 |
| Lips, Barbara G-4-79897 | Shell Western E&P Inc. only | Lips Ranch (Vicksburg) | Hidalgo | 1 | 0 | 0 | Jan 1993 – May 1993 |
| Christian Woods G-4-80762 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg N) | Hidalgo | 1 | 0 | 68K | Jan 1993 – Nov 1994 |
| McAllen, A.A. G-4-81976 | Shell Western E&P only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 0 | 2.08M | Jan 1993 – Mar 2006 |
| McAllen, A.A. G-4-84523 | Shell Western E&P only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 0 | 3.51M | Jan 1993 – Jun 2006 |
| Christian, Woods G-4-85735 | Shell Western E&P only | McAllen Ranch (Vicksburg S) | Hidalgo | 1 | 0 | 1.06M | Jan 1993 – Aug 2000 |
| McAllen, A.A. G-4-86030 | Shell Western E&P only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 0 | 1.48M | Jan 1993 – Jan 2010 |
| Lips, Barbara G-4-88563 | Shell Western E&P Inc. only | McAllen Ranch,n(vksbg. LO 14700) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Apr 1993 |
| Christian, Woods G-4-88720 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg Q) | Hidalgo | 1 | 0 | 0 | Jan 1993 – May 1993 |
| 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 |
| Christian, Woods G-4-92246 | Shell Western E&P Inc. only | Guadalupe (Vicksburg L) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Feb 1993 |
| 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-4-94774 | Shell Western E&P only | McAllen Ranch (Vicksburg S, SE.) | Hidalgo | 1 | 0 | 1.85M | Jan 1993 – Mar 2002 |
| Christian, Woods G-4-96191 | Shell Western E&P only | McAllen Ranch (Vicksburg S) | Hidalgo | 1 | 0 | 428K | Jan 1993 – Jun 2000 |
| Bright & Schiff Hamman Gas Unit G-4-104355 | Shell Western E&P Inc. only | Monte Christo (Vicksburg 15300) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Jun 1993 |
| McAllen, A. A. G-4-110673 | Shell Western E&P only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 0 | 1.17M | Jan 1993 – Sep 2006 |
| Beaurline, A. W. G-4-110796 | Shell Western E&P Inc. only | McAllen Ranch(vicksburg-U-V-,se) | Hidalgo | 1 | 0 | 430K | Jan 1993 – Jun 1998 |
| Beaurline, A. W. G-4-111299 | Shell Western E&P Inc. only | Los Indios, SW. (Frio 6000) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Jan 2000 |
| Hamman Ranch G-4-114201 | Shell Western E&P Inc. only | Monte Christo (Vksbg HH) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Apr 1994 |
| Cook G-4-115440 | Shell Western E&P only | McAllen (Elkins 6300) | Hidalgo | 1 | 0 | 1.37M | Jan 1993 – Apr 2007 |
| McAllen, A. A. "A" G-4-117877 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg L) | Hidalgo | 1 | 0 | 481K | Jan 1993 – Aug 1994 |
| Beaurline, A. W. G-4-119440 | Shell Western E&P only | McAllen Ranch(vicksburg-U-V-,se) | Hidalgo | 1 | 0 | 14.9K | Jan 1993 – Jan 2002 |
| Schmidt, J.M. Gas Unit G-4-119702 | Shell Western E&P Inc. only | Schmidt (Vicksburg 14600) | Hidalgo | 1 | 0 | 53.5K | Jan 1993 – Oct 1993 |
| Beaurline, A. W. G-4-121251 | Shell Western E&P Inc. only | McAllen Ranch (Guerra) | Hidalgo | 1 | 0 | 582K | Jan 1993 – Nov 1996 |
| Guerra, E.E. Jr. G-4-122823 | Shell Western E&P Inc. only | McAllen Ranch (Guerra) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Oct 1994 |
| Guerra, E.E. "A" G-4-124161 | Shell Western E&P Inc. only | McAllen Ranch (Guerra) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Sep 1996 |
| McAllen, A. A. G-4-124360 | Shell Western E&P only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 0 | 981K | Jan 1993 – Jan 2010 |
| 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 |
| 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 |
| Guerra, E.E. G-4-127251 | Shell Western E&P Inc. only | McAllen Ranch (Guerra) | Hidalgo | 1 | 0 | 0 | Jan 1993 – Nov 1995 |
| 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 |
| 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 |
| 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 |
| 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 |
| Christian, Woods G-4-11968 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg P, Q) | Hidalgo | 1 | 0 | 217K | Jan 1993 – Nov 1998 |