| Fly D #142-175-33050 | Westport Oil and Gas Company LP | Goliad, TXMarshall (Frio I) | PluggedGas | 4,400 | Feb 10, 2004 | — | — |
| Vaquillas 1629 #642-479-34978 | Westport Oil and Gas Company LP | Webb, TXVaquillas Ranch (Lobo) | PluggedGas | 10,250 | Aug 22, 2003 | — | — |
| Black Stone #142-215-33122 | Westport Oil and Gas Company LP | Hidalgo, TXMonte Christo E. (15 300) | PluggedGas | 22,500 | Jul 18, 2003 | — | — |
| Wagner L. E. #142-469-33353 | Westport Oil and Gas Company LP | Victoria, TXNursery SW. (3500) | PluggedGas | 3,950 | May 23, 2003 | — | — |
| Freeman #142-285-32837 | Westport Oil and Gas Company LP | Lavaca, TXSpeaks S.W. (3680) | PluggedGas | 6,200 | Nov 27, 2002 | — | — |
| Rush D. M. #1R42-175-33080 | Westport Oil and Gas Company LP | Goliad, TXSchroeder (Miocene 1500) | PluggedGas | 3,550 | Mar 5, 2002 | — | — |
| Merner Trust #142-175-33090 | Westport Oil and Gas Company LP | Goliad, TXFannin North (3750) | PluggedGas | 4,130 | Oct 31, 2001 | — | — |
| Peterson #142-175-33117 | Westport Oil and Gas Company LP | Goliad, TXWeesatche South (2200) | PluggedGas | 3,375 | Feb 12, 2001 | — | — |
| Kolodzey #142-175-33023 | Westport Oil and Gas Company LP | Goliad, TXSchroeder (Miocene 1500) | PluggedGas | 5,600 | Nov 8, 2000 | — | — |
| Whipp #142-175-33048 | Westport Oil and Gas Company LP | Goliad, TXMarshall E. (Cook MOUNTAIN5460) | PluggedGas | 6,000 | Nov 2, 2000 | — | — |
| Cage Ranch #707342-047-31723 | Westport Oil and Gas Company LP | Brooks, TXCage Ranch (6900) | PluggedOil | 8,500 | Sep 7, 2000 | — | — |
| Albrecht Estelle G.U. #242-175-33022 | Westport Oil and Gas Company LP | Goliad, TXMarshall E. (Cook MOUNTAIN5460) | PluggedGas | 5,900 | Sep 5, 2000 | — | — |
| Tschirhart J.A. et al #142-469-33222 | Westport Oil and Gas Company LP | Victoria, TXStapp (Frio Middle) | PluggedGas | 3,980 | Aug 30, 2000 | — | — |
| Heller R. J. et al. #142-469-33226 | Westport Oil and Gas Company LP | Victoria, TXStapp (Frio 3300) | PluggedGas | 3,900 | Aug 11, 2000 | — | — |
| Cage Ranch 603 #542-047-31867 | Westport Oil and Gas Company LP | Brooks, TXCage Ranch (7600) | PluggedGas | 8,500 | Aug 3, 2000 | — | — |
| Johnson B. G. #142-469-33344 | Westport Oil and Gas Company LP | Victoria, TXSchroeder (Frio 3100) | PluggedGas | 4,340 | Aug 1, 2000 | — | — |
| Nona Mills Field Unit #250942-199-00497 | Westport Oil and Gas Company LP | Hardin, TXNona Mills (-E- Sand) | PluggedGas | 8,500 | Apr 24, 2000 | — | — |
| Cage Ranch 6031 Gas Unit #603142-047-31770 | Westport Oil and Gas Company LP | Brooks, TXCage Ranch (6900) | PluggedGas | 8,196 | Feb 16, 2000 | — | — |
| Edinburg Improvement Association #442-215-32051 | Westport Oil and Gas Company LP | Hidalgo, TXTexan Gardens (Mission) | PluggedGas | 10,000 | Nov 12, 1999 | — | — |
| Dougherty M. P. #760442-215-32328 | Westport Oil and Gas Company LP | Hidalgo, TXTexan Gardens (5400) | PluggedGas | 7,000 | Nov 12, 1999 | — | — |
| Cage Ranch 707-1 G U #442-047-31864 | Westport Oil and Gas Company LP | Brooks, TXCage Ranch (7300) | PluggedOil | 8,500 | Aug 13, 1999 | — | — |
| Cage Ranch 603-1 Gas Unit #342-047-31862 | Westport Oil and Gas Company LP | Brooks, TXCage Ranch (6900) | PluggedGas | 8,500 | Aug 6, 1999 | — | — |
| Barton #142-291-32327 | Westport Oil and Gas Company LP | Liberty, TXSplendora E. (Jackson) | PluggedGas | 5,300 | Jul 27, 1999 | — | — |
| Smith W. D. #142-291-32323 | Westport Oil and Gas Company LP | Liberty, TXSplendora E. (5700) | PluggedGas | 6,000 | May 25, 1999 | — | — |
| Hightower C. M. #1RE42-291-00166 | Westport Oil and Gas Company LP | Liberty, TXSplendora E. (5700) | PluggedGas | 5,900 | May 10, 1999 | — | — |
| Edinburg Improvement Association #d 642-215-32325 | Westport Oil and Gas Company LP | Hidalgo, TXFoy (6600) | PluggedGas | 7,000 | Jul 15, 1998 | — | — |
| Lubbock #142-175-33100 | Westport Oil and Gas Company LP | Goliad, TXMarshall (2100) | PluggedGas | 3,675 | Jun 19, 1998 | — | — |
| Whipp Unit #242-175-33052 | Westport Oil and Gas Company LP | Goliad, TXJobar (Yegua) | PluggedGas | 6,000 | Dec 23, 1997 | — | — |
| Edinburg Improvement Association #142-215-32009 | Westport Oil and Gas Company LP | Hidalgo, TXTexan Gardens (Mission) | PluggedGas | 9,500 | Dec 2, 1997 | — | — |
| Jaschke L. Gas Unit #142-469-33264 | Westport Oil and Gas Company LP | Victoria, TXBullock S Church S. (10500) | PluggedGas | 10,900 | Sep 5, 1997 | — | — |
| Goss Trust #1LHZ42-041-31902 | Westport Oil and Gas Company LP | Brazos, TXIola (Georgetown) | PluggedOil | 14,100 | May 20, 1997 | — | — |
| Dougherty MP #7605 T42-215-32399 | Westport Oil and Gas Company LP | Hidalgo, TXTexan Gardens (5800) | PluggedGas | 7,000 | Mar 13, 1997 | — | — |
| Chevron University 35 #142-495-32585 | Westport Oil and Gas Company LP | Winkler, TXUniversity Blk. 21(BRUSHY Canyon | PluggedOil | 8,700 | Mar 12, 1997 | — | — |
| Dougherty M. P. #760242-215-30026 | Westport Oil and Gas Company LP | Hidalgo, TXFoy (6600) | PluggedGas | 7,400 | May 3, 1996 | — | — |
| Dougherty M. P. #760342-215-32275 | Westport Oil and Gas Company LP | Hidalgo, TXFoy E. (6300) | PluggedGas | 6,800 | Nov 29, 1995 | — | — |
| Montgomery Unit #242-215-00997 | Westport Oil and Gas Company LP | Hidalgo, TXSan Carlos (FH-19) | PluggedGas | 9,300 | May 2, 1995 | — | — |
| Chadbourne Ranch 431 -a- #1842-081-31667 | Westport Oil and Gas Company LP | Coke, TXFort Chadbourne (Gardner) | PluggedOil | 6,000 | Feb 1, 1995 | — | — |
| Vaquillas 1953 #442-479-36189 | Westport Oil and Gas Company LP | Webb, TXVaquillas Ranch (Lobo Cons.) | PluggedGas | 10,500 | Oct 18, 1994 | — | — |
| Buchanan-Wheeler #142-199-00507 | Westport Oil and Gas Company LP | Hardin, TXNona Mills (-J-) | PluggedGas | 8,605 | Sep 14, 1994 | — | — |
| Montgomery Unit #4-U42-215-30236 | Westport Oil and Gas Company LP | Hidalgo, TXSan Carlos (FE-59) | PluggedGas | 8,312 | Apr 29, 1993 | — | — |
| Zamora S Sand Gas Unit #242-215-31931 | Westport Oil and Gas Company LP | Hidalgo, TXTexan Gardens (Heard Third) | PluggedGas | 13,500 | Oct 30, 1992 | — | — |
| Vaquillas 1953 #342-479-35585 | Westport Oil and Gas Company LP | Webb, TXPozo (Wilcox 5500) | PluggedGas | 9,900 | Sep 8, 1992 | — | — |
| Vaquillas 2059 #342-479-35481 | Westport Oil and Gas Company LP | Webb, TXVaquillas Ranch (Lobo Cons.) | PluggedGas | 10,400 | May 25, 1992 | — | — |
| Vaquillas 1631A #542-479-35397 | Westport Oil and Gas Company LP | Webb, TXVaquillas Ranch (Lobo) | PluggedGas | 10,500 | Jan 30, 1992 | — | — |
| Vaquillas 1631A #342-479-35169 | Westport Oil and Gas Company LP | Webb, TXVaquillas Ranch (Lobo) | PluggedGas | 10,500 | Feb 6, 1991 | — | — |
| Chadbourne Ranch 302-B #442-081-31547 | Westport Oil and Gas Company LP | Coke, TXFort Chadbourne (Gardner) | PluggedOil | 6,000 | Sep 14, 1990 | — | — |
| Chadbourne Ranch 302-B #342-081-31544 | Westport Oil and Gas Company LP | Coke, TXFort Chadbourne (Gardner) | PluggedOil | 6,500 | Apr 17, 1990 | — | — |
| Nona Mills Field Unit #500242-199-00399 | Westport Oil and Gas Company LP | Hardin, TXNona Mills (-C- Sand) | PluggedGas | 8,504 | Dec 8, 1989 | — | — |
| Chadbourne Ranch 302-B #242-081-31534 | Westport Oil and Gas Company LP | Coke, TXLaura Gail (Gardner) | PluggedGas | 6,000 | Nov 15, 1989 | — | — |
| Vaquillas 1631 #142-479-34950 | Westport Oil and Gas Company LP | Webb, TXVaquillas Ranch (Lobo) | PluggedGas | 10,350 | Nov 14, 1989 | — | — |