| Heard Claud E. Etal #242-391-00665 | Quintana Pet. Corp. | Refugio, TXTom Oconnor (5800) | PluggedOil | 5,960 | Aug 9, 2004 | — | — |
| Heard Claude E. #3042-391-00657 | Quintana Pet. Corp. | Refugio, TXTom O Connor (4925) | PluggedGas | 5,980 | Aug 31, 1999 | — | — |
| Williams Maude et al a #D104J42-391-00334 | Quintana Pet. Corp. | Refugio, TXLake Pasture (L-200) | PluggedGas | 5,900 | Mar 11, 1999 | — | — |
| Williams Maude et al -a- #d 74 D42-391-00332 | Quintana Pet. Corp. | Refugio, TXLake Pasture (M-295) | PluggedGas | 5,850 | Oct 20, 1998 | — | — |
| Williams Maude et al -a- #d 48 D42-391-00215 | Quintana Pet. Corp. | Refugio, TXLake Pasture (E-293) | PluggedGas | 5,778 | Sep 29, 1998 | — | — |
| Williams, Maude et al 'C' #742-391-32228 | Quintana Pet. Corp. | Refugio, TX | Not on schedule | 6,500 | Mar 2, 1998 | — | — |
| South Texas Syndicate -a- #1342-283-00166 | Quintana Pet. Corp. | La Salle, TXWashburn Ranch West (4600) | PluggedOil | 5,658 | Jul 24, 1997 | — | — |
| O'Connor, Thomas 'B' #5442-391-32188 | Quintana Pet. Corp. | Refugio, TX | Not on schedule | 6,800 | Jul 14, 1997 | — | — |
| Williams Maude et al -a- #d 63 F42-391-00217 | Quintana Pet. Corp. | Refugio, TXLake Pasture (E-293) | PluggedGas | 5,848 | Jan 28, 1997 | — | — |
| Williams Maude et al a #d 38D42-391-03894 | Quintana Pet. Corp. | Refugio, TXLake Pasture (E-219) | PluggedGas | 5,760 | May 10, 1996 | — | — |
| Williams Maude et al a #d 56F42-391-00216 | Quintana Pet. Corp. | Refugio, TXLake Pasture (L-206) | PluggedGas | 5,826 | Mar 29, 1996 | — | — |
| Williams Maude et al a #d 7842-391-30327 | Quintana Pet. Corp. | Refugio, TXLake Pasture (L-206) | PluggedGas | 4,670 | Jan 22, 1996 | — | — |
| Hastedt Emma #14-U42-089-31748 | Quintana Pet. Corp. | Colorado, TXColumbus ( 6-H) | PluggedGas | 10,500 | Dec 11, 1995 | — | — |
| Williams Maude et al a #d 4242-391-03882 | Quintana Pet. Corp. | Refugio, TXLake Pasture (C-406) | PluggedGas | 5,750 | Nov 15, 1995 | — | — |
| O Connor Thomas B #5342-391-32112 | Quintana Pet. Corp. | Refugio, TXMelon Creek East (6550) | PluggedOil | 9,000 | May 22, 1995 | — | — |
| Heard Ira -B- #842-391-00743 | Quintana Pet. Corp. | Refugio, TXGreta (L- 5) | PluggedGas | 5,951 | May 12, 1995 | — | — |
| Hastedt Emma #12-F42-089-31697 | Quintana Pet. Corp. | Colorado, TXColumbus (9-C) | PluggedGas | 11,550 | Jun 17, 1994 | — | — |
| Marshall #142-175-31384 | Quintana Pet. Corp. | Goliad, TXPeters Creek (Yegua 5000) | PluggedGas | 10,000 | Feb 25, 1994 | — | — |
| South Texas Syndicate a #742-283-00157 | Quintana Pet. Corp. | La Salle, TXWashburn Ranch (Mula Sand 5100) | PluggedGas | 5,574 | Oct 21, 1993 | — | — |
| South Texas Syndicate a #2542-283-00149 | Quintana Pet. Corp. | La Salle, TXWashburn Ranch (4600) | PluggedGas | 5,578 | Oct 19, 1993 | — | — |
| South Texas Syndicate a #442-283-00156 | Quintana Pet. Corp. | La Salle, TXWashburn Ranch (4850) | PluggedGas | 5,220 | Oct 8, 1993 | — | — |
| South Texas Syndicate -a- #1042-283-00158 | Quintana Pet. Corp. | La Salle, TXWashburn Ranch (5500 Sd.) | PluggedOil | 5,582 | Sep 15, 1993 | — | — |
| Reilly Annie #1 T42-391-00821 | Quintana Pet. Corp. | Refugio, TXGreta (L- 6 West) | PluggedGas | 2,410 | Aug 18, 1993 | — | — |
| Claire Mary Bauer et Vir #1SG42-391-00818 | Quintana Pet. Corp. | Refugio, TXGreta (L-10) | PluggedGas | 2,410 | May 19, 1993 | — | — |
| Williams Maude et al a #3242-391-81954 | Quintana Pet. Corp. | Refugio, TXGreta (L- 5) | PluggedGas | 5,920 | Nov 23, 1992 | — | — |
| O'Connor, Thomas "B" #5142-391-32084 | Quintana Pet. Corp. | Refugio, TX | Not on schedule | 8,800 | Nov 12, 1992 | — | — |
| O Connor Thomas B #2642-391-01807 | Quintana Pet. Corp. | Refugio, TXMary Ellen Oconnor (FS-1) | PluggedGas | 6,200 | Oct 22, 1992 | — | — |
| Oconnor Thomas -C- #1SG42-391-01181 | Quintana Pet. Corp. | Refugio, TXGreta (L- 2) | PluggedGas | 2,410 | Mar 11, 1992 | — | — |
| Oconnor Thomas -a- #1 C42-391-01533 | Quintana Pet. Corp. | Refugio, TXGreta (L- 3) | PluggedGas | 2,409 | Mar 11, 1992 | — | — |
| O Connor Thomas a #10942-391-01482 | Quintana Pet. Corp. | Refugio, TXTom Oconnor (4200) | PluggedGas | 5,625 | Aug 19, 1991 | — | — |
| Williams Maude et al a #8142-391-31244 | Quintana Pet. Corp. | Refugio, TXLake Pasture (H-434) | PluggedOil | 8,500 | Aug 19, 1991 | — | — |
| Ragsdale #242-131-37496 | Quintana Pet. Corp. | Duval, TX | Not on schedule | 14,500 | Jul 12, 1991 | — | — |
| Ragsdale #342-131-37498 | Quintana Pet. Corp. | Duval, TX | Not on schedule | 14,500 | Jul 12, 1991 | — | — |
| Williams Maude et al C #142-391-00500 | Quintana Pet. Corp. | Refugio, TXTom Oconnor (4200) | PluggedGas | 5,914 | May 7, 1991 | — | — |
| O Connor Thomas C #6442-391-01178 | Quintana Pet. Corp. | Refugio, TXTom Oconnor (3500) | PluggedGas | 4,522 | Jan 15, 1991 | — | — |
| Williams Maude et al a #D15742-391-32029 | Quintana Pet. Corp. | Refugio, TXLake Pasture (L-167) | PluggedGas | 5,800 | Oct 10, 1990 | — | — |
| Oconnor Thomas -B- #37 F42-391-01842 | Quintana Pet. Corp. | Refugio, TXWoodsboro South (4200) | PluggedOil | 6,000 | Sep 24, 1990 | — | — |
| Heard Claude E. et al #3642-391-04057 | Quintana Pet. Corp. | Refugio, TXGreta (L- 2) | PluggedGas | 6,303 | Aug 22, 1990 | — | — |
| Williams Maude et al a #d 35D42-391-00213 | Quintana Pet. Corp. | Refugio, TXLake Pasture (E-273) | PluggedGas | 5,730 | Jul 20, 1990 | — | — |
| O Conner Thomas -B- #4842-391-31305 | Quintana Pet. Corp. | Refugio, TXMary Ellen O Connor (6570) | PluggedOil | 8,500 | Jun 4, 1990 | — | — |
| Andrau et al #142-039-32381 | Quintana Pet. Corp. | Brazoria, TX | Plugged | 10,800 | Mar 19, 1990 | — | — |
| Williams Maude et al a #d 742-391-00273 | Quintana Pet. Corp. | Refugio, TXLake Pasture (E-284) | PluggedGas | 5,759 | Mar 12, 1990 | — | — |
| Williams Maude et al -a- #d 30 H42-391-00369 | Quintana Pet. Corp. | Refugio, TXLake Pasture (L-206) | PluggedGas | 5,855 | Mar 12, 1990 | — | — |
| South Texas Syndicate II-a #142-283-00143 | Quintana Pet. Corp. | La Salle, TXWashburn (Edwards) | PluggedGas | 10,521 | Nov 8, 1989 | — | — |
| Carpenter A. M. #1D42-245-31154 | Quintana Pet. Corp. | Jefferson, TXBig Prairie (EY-3) | PluggedGas | 9,973 | Oct 23, 1989 | — | — |
| Dix Thomas #442-409-32018 | Quintana Pet. Corp. | San Patricio, TXThomas Dix (4060 Sand) | PluggedGas | 6,500 | Oct 9, 1989 | — | — |
| South Texas Syndicate -a- #3242-283-00151 | Quintana Pet. Corp. | La Salle, TXWashburn Ranch (4600) | PluggedGas | 5,578 | Sep 18, 1989 | — | — |
| Arrington Heirs #142-481-33276 | Quintana Pet. Corp. | Wharton, TX | Not on schedule | 13,500 | Jul 13, 1989 | — | — |
| Dix Thomas #342-409-31897 | Quintana Pet. Corp. | San Patricio, TXThomas Dix (4200 Sand) | PluggedGas | 7,000 | Apr 11, 1989 | — | — |
| Heard Clement #1642-391-30056 | Quintana Pet. Corp. | Refugio, TXTom Oconnor (3900) | PluggedGas | 4,500 | Apr 7, 1989 | — | — |