| Frost P. M. F #142-479-35134 | Conoco Inc. | Webb, TXVaquillas Ranch (Lobo Cons.) | PluggedGas | 11,600 | Dec 14, 1990 | — | — |
| Vaquillas Ranch A11 #7642-479-35124 | Conoco Inc. | Webb, TXBonebrake (Lobo 6) | PluggedGas | 10,400 | Nov 14, 1990 | — | — |
| Dix Ranch C #100C42-479-35118 | Conoco Inc. | Webb, TXDix Ranch (Lower Wilcox Lobo) | PluggedGas | 9,500 | Nov 5, 1990 | — | — |
| State Tract 198 #342-071-31484 | Conoco Inc. | Chambers, TXSmith Point East (Frio 19) | PluggedGas | 13,300 | May 22, 1990 | — | — |
| Slick T.B. B #17442-427-32411 | Conoco Inc. | Starr, TXUrschel (4250) | PluggedGas | 8,700 | May 4, 1990 | — | — |
| Jank A. #342-175-01977 | Conoco Inc. | Goliad, TXSlick (Wilcox) | PluggedOil | 7,635 | Mar 15, 1990 | — | — |
| Winch L. #242-479-32604 | Conoco Inc. | Webb, TXMujeres Creek (Lobo 3) | PluggedGas | 10,094 | Mar 12, 1990 | — | — |
| Martin John Jr #a 242-479-34994 | Conoco Inc. | Webb, TXCaprice (Lobo Upper) | PluggedGas | 9,650 | Feb 23, 1990 | — | — |
| Cameron W.I. Sec. 138 #2342-427-32389 | Conoco Inc. | Starr, TXRincon (a-2 Frio) | PluggedGas | 5,200 | Feb 15, 1990 | — | — |
| Driscoll Robert #39942-131-37319 | Conoco Inc. | Duval, TXConoco Driscoll | PluggedGas | 4,000 | Feb 7, 1990 | — | — |
| Slick T. B. -E- Est. #8R42-427-03561 | Conoco Inc. | Starr, TXRincon | PluggedOil | 4,200 | Jan 24, 1990 | — | — |
| Rosa Benavides D #36R42-479-34973 | Conoco Inc. | Webb, TXBonebrake (Lobo 6) | PluggedGas | 10,300 | Jan 9, 1990 | — | — |
| Carr Edith #442-479-34923 | Conoco Inc. | Webb, TXCaprice (Lobo) | PluggedGas | 9,750 | Oct 9, 1989 | — | — |
| St. Charles Company #3642-007-00900 | Conoco Inc. | Aransas, TXSt. Charles (Frio Cons. Upper) | PluggedGas | 8,144 | Aug 23, 1989 | — | — |
| Vaquillas Ranch A2 #6842-479-34865 | Conoco Inc. | Webb, TXGato Creek (Lobo 1) | PluggedGas | 10,500 | May 26, 1989 | — | — |
| Driscoll Robert #13142-131-32513 | Conoco Inc. | Duval, TXConoco Driscoll S. (Cole M NO) | PluggedGas | 3,750 | May 2, 1989 | — | — |
| Ector -AS- Fee #1142-135-36036 | Conoco Inc. | Ector, TXCowden South (Canyon 8900) | PluggedOil | 9,400 | Mar 10, 1989 | — | — |
| Driscoll Robert #3042-131-07908 | Conoco Inc. | Duval, TXConoco Driscoll | PluggedGas | 3,366 | Feb 24, 1989 | — | — |
| Vaquillas Ranch-A1 #4942-479-33836 | Conoco Inc. | Webb, TXGato Creek SE (Lobo 1) | PluggedGas | 11,049 | Feb 21, 1989 | — | — |
| Vaquillas Ranch L2 #6342-479-34780 | Conoco Inc. | Webb, TXCarr (Wilcox) | PluggedGas | 9,500 | Nov 28, 1988 | — | — |
| Slick T.B. Est. -a- #15142-427-31190 | Conoco Inc. | Starr, TXRincon | PluggedGas | 3,913 | Nov 4, 1988 | — | — |
| Ector -AS- Fee #1042-135-35976 | Conoco Inc. | Ector, TXCowden South (Canyon 8900) | PluggedOil | 9,150 | Sep 16, 1988 | — | — |
| Chittim N.J. #991642-323-31666 | Conoco Inc. | Maverick, TXSacatosa (Olmos) | PluggedOil | 2,175 | Aug 23, 1988 | — | — |
| Benavides B.R. a #142-505-32481 | Conoco Inc. | Zapata, TXJennings Ranch (Lobo Cons.) | PluggedGas | 13,000 | Aug 15, 1988 | — | — |
| Vaquillas Ranch L 1 #6242-479-34681 | Conoco Inc. | Webb, TXBonebrake (Lobo 6) | PluggedGas | 10,500 | May 10, 1988 | — | — |
| Kloh B-41 #242-135-07503 | Conoco Inc. | Ector, TXTXL (Devonian) | PluggedOil | 9,870 | Mar 2, 1988 | — | — |
| Benavides Rosa V. -C- #2642-479-33779 | Conoco Inc. | Webb, TXLoco (Lobo 1) | PluggedGas | 9,700 | Oct 12, 1987 | — | — |
| Vaquillas Ranch C #242-479-34549 | Conoco Inc. | Webb, TXVaquillas Ranch (Lobo Cons.) | PluggedGas | 9,500 | Jul 1, 1987 | — | — |
| McRorey Corine #142-127-30818 | Conoco Inc. | Dimmit, TXPena Creek (San Miguel 3RD) | PluggedOil | 3,420 | May 12, 1987 | — | — |
| Vela Serapio Heirs B #2142-505-32284 | Conoco Inc. | Zapata, TXRoleta (Wilcox Consolidated) | PluggedGas | 10,500 | Feb 5, 1987 | — | — |
| Benavides Rosa V. C #3442-479-34422 | Conoco Inc. | Webb, TXContrary (Lobo) | PluggedGas | 9,700 | Sep 29, 1986 | — | — |
| Frio D-5 Unit #4842-427-01617 | Conoco Inc. | Starr, TXRincon | PluggedOil | 6,000 | Aug 18, 1986 | — | — |
| Smith F. B. #242-467-30160 | Conoco Inc. | Van Zandt, TXGrand Saline (1ST Rodessa) | PluggedOil | 8,370 | Aug 18, 1986 | — | — |
| Slick T.B. Est. B #10742-427-01522 | Conoco Inc. | Starr, TXRincon (B-1 Frio) | PluggedGas | 4,234 | Jul 24, 1986 | — | — |
| Vaquillas Ranch C #142-479-34393 | Conoco Inc. | Webb, TXBig Cowboy (Lobo) | PluggedGas | 9,800 | Jun 27, 1986 | — | — |
| Hyman-Chalk #1442-227-34051 | Conoco Inc. | Howard, TXHoward-Glasscock (Wolfcamp 7400) | PluggedOil | 8,500 | May 28, 1986 | — | — |
| Slick T. B. -H- Est. #7942-427-04611 | Conoco Inc. | Starr, TXRincon | PluggedOil | 5,012 | May 19, 1986 | — | — |
| Vela Serapio Heirs B #942-505-32199 | Conoco Inc. | Zapata, TXRoleta (Wilcox Consolidated) | PluggedGas | 9,850 | May 19, 1986 | — | — |
| Benavides Rosa V. -D- #3342-479-34365 | Conoco Inc. | Webb, TXCarmelia (Lobo-6) | PluggedGas | 9,900 | Apr 22, 1986 | — | — |
| St. Charles Co. #7242-007-30731 | Conoco Inc. | Aransas, TXBlackjack (I) | PluggedGas | 12,200 | Feb 28, 1986 | — | — |
| Hubberd William -D- #1242-479-31127 | Conoco Inc. | Webb, TXLaredo (Lobo) | PluggedGas | 9,141 | Feb 11, 1986 | — | — |
| Slick T.B. Est. -H- #8442-427-31568 | Conoco Inc. | Starr, TXRincon (Vicksburg 5000) | PluggedGas | 8,500 | Dec 20, 1985 | — | — |
| Bush J. W. #142-389-31704 | Conoco Inc. | Reeves, TXBush (Permian) | PluggedOil | 13,500 | Dec 10, 1985 | — | — |
| Foss C. A. Oil Unit #142-395-30340 | Conoco Inc. | Robertson, TXOwensville (Buda) | PluggedOil | 6,600 | Nov 1, 1985 | — | — |
| St. Charles Co. #7442-007-30747 | Conoco Inc. | Aransas, TXBlackjack (J 9400) | PluggedGas | 12,000 | Oct 3, 1985 | — | — |
| Lundell #4642-479-34243 | Conoco Inc. | Webb, TXVaquillas Ranch (Lobo Cons.) | PluggedGas | 10,200 | Sep 11, 1985 | — | — |
| McCampbell #142-479-34240 | Conoco Inc. | Webb, TXGato Creek SE (Stray) | PluggedGas | 12,900 | Sep 6, 1985 | — | — |
| Vaquillas Ranch Co. Ltd #2842-479-34231 | Conoco Inc. | Webb, TXGato Creek (Lobo 1) | PluggedGas | 12,500 | Aug 27, 1985 | — | — |
| Benavides Rosa V. B3 #2742-479-33910 | Conoco Inc. | Webb, TXCaprice (Lobo) | PluggedGas | 9,600 | Aug 2, 1985 | — | — |
| Villarreal C.G. #142-479-34212 | Conoco Inc. | Webb, TXVaquillas Ranch (Lobo Cons.) | PluggedGas | 12,500 | Jul 29, 1985 | — | — |