| Zamora Unit G-4-119497 | Westport Oil and Gas Company, LP | Tabasco, North (R) | Hidalgo | 1 | 139 | 302K | by Jan 1993 – Apr 2004 |
| Hidalgo - Willacy G-4-183928 | Westport Oil and Gas Company, LP | Texan Gardens (P Sand) | Hidalgo | 1 | 138 | 217K | Jan 2001 – May 2003 |
| Cage Ranch 603 G-4-175501 | Westport Oil and Gas Company, LP | Cage Ranch (7800) | Brooks | 1 | 116 | 11.7K | Oct 1999 – Jun 2000 |
| Cage Ranch 603 G-4-177923 | Westport Oil and Gas Company, LP | Cage Ranch (7600) | Brooks | 1 | 104 | 2.89K | Sep 2000 – Oct 2002 |
| Dougherty, M. P. G-4-158926 | Westport Oil and Gas Company, LP | Foy, E. (6300) | Hidalgo | 1 | 99 | 242K | May 1996 – Apr 1999 |
| Dougherty, M.P. G-4-164992 | Westport Oil and Gas Company, LP | Texan Gardens (5600) | Hidalgo | 1 | 92 | 113K | Jun 1997 – Jan 2001 |
| Chadbourne Ranch 302-B G-9-121971 | Westport Oil and Gas Company, LP | Laura Gail (Gardner) | Coke | 1 | 89 | 36.5K | by Jan 1993 – Oct 1998 |
| Cage Ranch 603-1 Gas Unit G-4-174776 | Westport Oil and Gas Company, LP | Cage Ranch (6900) | Brooks | 1 | 89 | 29.9K | Sep 1999 – Jul 2002 |
| Kolodzey G-2-184275 | Westport Oil and Gas Company, LP | Schroeder (Miocene 1500) | Goliad | 1 | 88 | 58.8K | Aug 2001 – Jun 2003 |
| Montgomery Unit G-4-94634 | Westport Oil and Gas Company, LP | San Carlos (FF-10) | Hidalgo | 1 | 81 | 47.9K | by Jan 1993 – Jul 1995 |
| Nona Mills Field Unit G-3-177514 | Westport Oil and Gas Company, LP | Nona Mills (-E- Sand) | Hardin | 1 | 77 | 3.27K | Mar 2000 – Jul 2001 |
| Cuellar, Leon C. G-2-170007 | Westport Oil and Gas Company, LP | Weber, W. (3280) | Victoria | 1 | 48 | 592K | Jun 1998 – Sep 2001 |
| Whipp G-2-180959 | Westport Oil and Gas Company, LP | Marshall, E. (Cook MOUNTAIN5460) | Goliad | 1 | 47 | 5.96K | Nov 2000 – Jun 2003 |
| Zamora "S" Sand Gas Unit G-4-144448 | Westport Oil and Gas Company, LP | Texan Gardens (Heard, Third) | Hidalgo | 1 | 39 | 502 | Feb 1993 – May 1993 |
| Heller, R. J. et Al. G-2-168095 | Westport Oil and Gas Company, LP | Stapp (Frio 3300) | Victoria | 1 | 17 | 730K | Aug 1997 – Nov 2001 |
| Fly, D. G-2-184295 | Westport Oil and Gas Company, LP | Karen Beauchamp (2600) | Goliad | 1 | 10 | 131K | May 2001 – Sep 2003 |
| Merner Trust G-2-170233 | Westport Oil and Gas Company, LP | Fannin, North (3750) | Goliad | 1 | 8 | 472K | Jul 1998 – May 2001 |
| Rush, D. M. G-2-182516 | Westport Oil and Gas Company, LP | Fannin, North (2480) | Goliad | 1 | 6 | 19.2K | Jan 2001 – Mar 2002 |
| Rush, D. M. G-2-189471 | Westport Oil and Gas Company, LP | Schroeder (Miocene 1500) | Goliad | 1 | 4 | 7.69K | Apr 2002 – Jun 2003 |
| Albrecht, Estelle G.U. G-2-180925 | Westport Oil and Gas Company, LP | Marshall, E. (Cook MOUNTAIN5460) | Goliad | 1 | 4 | 6.69K | Nov 2000 – Apr 2002 |
| Peterson G-2-184280 | Westport Oil and Gas Company, LP | Weesatche, South (2200) | Goliad | 1 | 2 | 30.9K | May 2001 – Feb 2003 |
| Johnson, B. G. G-2-180255 | Westport Oil and Gas Company, LP | Schroeder (Frio 3100) | Victoria | 1 | 2 | 22.8K | Sep 2000 – Feb 2002 |
| Wright, Dela S. "B" O-11-61901 | Westport Oil and Gas Company, LP | Levelland | Cochran | 1 | 0 | 0 | — |
| Fly, D. G-2-170664 | Westport Oil and Gas Company, LP | Karen Beauchamp (3200) | Goliad | 1 | 0 | 180K | Aug 1998 – Mar 2000 |
| Wagner, L. E. G-2-171006 | Westport Oil and Gas Company, LP | Nursery, SW. (3500) | Victoria | 1 | 0 | 268K | Sep 1998 – Jun 2003 |
| Peterson G-2-171744 | Westport Oil and Gas Company, LP | Soleberg (Frio 2900, Up.) | Goliad | 1 | 0 | 40.2K | Oct 1998 – Jan 2000 |
| Lubbock G-2-174141 | Westport Oil and Gas Company, LP | Marshall (2100) | Goliad | 1 | 0 | 39.5K | Jul 2001 – Oct 2002 |
| Fly, D. G-2-177957 | Westport Oil and Gas Company, LP | CKP (2900) | Goliad | 1 | 0 | 58.3K | Apr 2000 – Dec 2000 |
| Johnson, B. G. G-2-179348 | Westport Oil and Gas Company, LP | Schroeder (3270) | Victoria | 1 | 0 | 17 | May 2000 – Jun 2000 |
| Freeman G-2-193236 | Westport Oil and Gas Company, LP | Speaks, S.W. (3680) | Lavaca | 1 | 0 | 4.69K | Nov 2002 – May 2003 |
| Eaves G-2-202623 | Westport Oil and Gas Company, LP | Crandall Rubie (Magnolia) | Lavaca | 1 | 0 | 1.54K | Mar 2004 – Mar 2004 |
| Turner Unit G-2-202897 | Westport Oil and Gas Company, LP | Wildcat | Bee | 1 | 0 | 0 | — |
| Fly, D G-2-207783 | Westport Oil and Gas Company, LP | Marshall (Frio I) | Goliad | 1 | 0 | 0 | — |
| Cullen G-2-213728 | Westport Oil and Gas Company, LP | Wildcat | Lavaca | 1 | 0 | 0 | — |
| Heyne G-3-182315 | Westport Oil and Gas Company, LP | Stimmel, West (Frio 4640) | Wharton | 1 | 0 | 339K | Mar 2001 – Jan 2005 |
| Gutierrez "A" G-4-70650 | Westport Oil and Gas Company, LP | Cinco de Mayo (2000) | Zapata | 1 | 0 | 0 | — |
| Mecom, J. W. G-4-103494 | Westport Oil and Gas Company, LP | La Perla (Lobo Cons.) | Zapata | 1 | 0 | 92.8K | by Jan 1993 – Feb 2006 |
| Gutierrez -A- G-4-127543 | Westport Oil and Gas Company, LP | Cinco de Mayo (2300) | Zapata | 1 | 0 | 87.7K | by Jan 1993 – Dec 1997 |
| Vaquillas 1953 G-4-153111 | Westport Oil and Gas Company, LP | Vaquillas Ranch (Lobo Cons.) | Webb | 1 | 0 | 7.63K | Dec 1994 – Jan 1996 |
| Vaquillas 1627 G-4-154529 | Westport Oil and Gas Company, LP | Vaquillas Ranch (Lobo) | Webb | 1 | 0 | 0 | — |
| Edinburg Improvement Association G-4-176831 | Westport Oil and Gas Company, LP | Texan Gardens (Mission) | Hidalgo | 1 | 0 | 6.66K | Mar 2000 – Apr 2002 |
| Texan Gardens G-4-191907 | Westport Oil and Gas Company, LP | Wildcat | Hidalgo | 1 | 0 | 0 | — |
| Black Stone G-4-201225 | Westport Oil and Gas Company, LP | Monte Christo, E. (15,300) | Hidalgo | 1 | 0 | 2.57K | Sep 2003 – Jan 2004 |
| Chadbourne Ranch 300 G-9-118133 | Westport Oil and Gas Company, LP | Laura Gail (Gardner) | Coke | 1 | 0 | 0 | — |
| Hofstetter Bros. O-3-24367 | Westport Oil and Gas Company, LP | Wildcat | Liberty | 1 | 0 | 0 | — |
| Poe, G. A. -A- O-8-1907 | Westport Oil and Gas Company, LP | Round Top (Canyon) | Fisher | 1 | 0 | 0 | — |
| Decker, Joe A., Etal O-8-5685 | Westport Oil and Gas Company, LP | Round Top (Swastika) | Fisher | 1 | 0 | 0 | — |
| Chadbourne Ranch -A- O-9-13306 | Westport Oil and Gas Company, LP | Fort Chadbourne, West | Coke | 1 | 0 | 0 | — |
| Clarke,f,jr., NCT-1 O-10-5572 | Westport Oil and Gas Company, LP | Shafter Lake (San Andres) | Andrews | 1 | 0 | 0 | — |
| Nolley, S. E. O-10-20499 | Westport Oil and Gas Company, LP | Nolley (Devonian) | Andrews | 1 | 0 | 0 | — |