| 357927 | May 4, 1989 | May 4, 1989 | Quintana Pet. Corp. | Refugio | O'Connor, Thomas "C" #80 | 6,110 | 39131608 |
| 358735 | May 1, 1989 | May 1, 1989 | Quintana Pet. Corp. | Refugio | Heard, Fannie V. W. Mrs. #6GU | 5,985 | 39100727 |
| 358624 | Apr 27, 1989 | Apr 27, 1989 | Quintana Pet. Corp. | Refugio | Tom O'Connor (5800 Sd)field Unit #3113Q | 6,100 | 39131991 |
| 358485 | Apr 26, 1989 | Apr 26, 1989 | Quintana Pet. Corp. | Refugio | Heard, Fannie V. Mrs. #112 | 6,971 | 39131401 |
| 358459 | Apr 24, 1989 | Apr 24, 1989 | Quintana Pet. Corp. | Refugio | Williams, Maude et al "A" #D 10 | 5,880 | 39100275 |
| 358458 | Apr 24, 1989 | Apr 24, 1989 | Quintana Pet. Corp. | Refugio | Williams, Maude et al "A" #D 22 | 6,200 | 39100330 |
| 357395 | Apr 24, 1989 | Apr 24, 1989 | Quintana Pet. Corp. | Refugio | Williams, Maude et al "A" #6U | 5,923 | 39100420 |
| 357393 | Apr 21, 1989 | Apr 21, 1989 | Quintana Pet. Corp. | Refugio | O'Connor, Thomas "C" #9 | 5,925 | 39101167 |
| 358306 | Apr 20, 1989 | Apr 20, 1989 | Quintana Pet. Corp. | Refugio | Williams, Maude et al "A" #D 3GU | 6,106 | 39100220 |
| 357687 | Apr 20, 1989 | Apr 20, 1989 | Quintana Pet. Corp. | Refugio | Heard, Clement #3G | 5,980 | 39100853 |
| 357959 | Apr 12, 1989 | Apr 12, 1989 | Quintana Pet. Corp. | Refugio | Tom O'CONNOR(5800 Sand)fieldunit #Q715 | 6,705 | 39130205 |
| 357960 | Apr 11, 1989 | Apr 11, 1989 | Quintana Pet. Corp. | Refugio | O'Connor, Thomas "A" #102 | 5,904 | 39101558 |
| 357960Amendment | Apr 11, 1989 | Apr 11, 1989 | Quintana Pet. Corp. | Refugio | O'Connor, Thomas "A" #102 | 5,904 | 39101558 |
| 357237 | Apr 11, 1989 | Apr 11, 1989 | Quintana Pet. Corp. | San Patricio | Dix, Thomas #3 | 6,300 | 40931897 |
| 356140 | Apr 11, 1989 | Apr 11, 1989 | Quintana Pet. Corp. | Refugio | Tom O'CONNOR(5800 Sand)fieldunit #Q219 | 5,925 | 39101129 |
| 357852 | Apr 10, 1989 | Apr 10, 1989 | Quintana Pet. Corp. | Refugio | O'Connor, Thomas "C" #49 | 5,914 | 39101572 |
| 357688 | Apr 7, 1989 | Apr 7, 1989 | Quintana Pet. Corp. | Refugio | Heard, Clement #16 | 4,500 | 39130056 |
| 357358 | Mar 28, 1989 | Mar 28, 1989 | Quintana Pet. Corp. | Refugio | TOMO'CONNOR(5800'SAND)FIELD Unit #Q524U | 7,808 | 39131588 |
| 357357 | Mar 24, 1989 | Mar 24, 1989 | Quintana Pet. Corp. | Refugio | O'Connor, Thomas "A" #17 | 5,895 | 39101537 |
| 357357Amendment | Mar 24, 1989 | Mar 24, 1989 | Quintana Pet. Corp. | Refugio | O'Connor, Thomas "A" #17U | 5,895 | 39101537 |
| 357326 | Mar 24, 1989 | Mar 24, 1989 | Quintana Pet. Corp. | Refugio | Williams, Maude et al "A" #D 9 | 5,763 | 39100274 |
| 356959 | Mar 14, 1989 | Mar 14, 1989 | Quintana Pet. Corp. | Refugio | Tom O'CONNOR(5800SAND)FIELD Unit #Q110 | 4,525 | 39101529 |
| 356789 | Mar 10, 1989 | Mar 10, 1989 | Quintana Pet. Corp. | Refugio | Tom O'CONNOR(5800'SAND)FIELDUNIT #Q223 | 5,925 | 39101136 |
| 356788 | Mar 10, 1989 | Mar 10, 1989 | Quintana Pet. Corp. | Refugio | Tom O'CONNOR(5800'SAND)FIELDUNIT #H044 | 5,914 | 39101411 |
| 356787 | Mar 10, 1989 | Mar 10, 1989 | Quintana Pet. Corp. | Refugio | Tom O'CONNOR(5800'SAND)FIELDUNIT #H050 | 5,894 | 39101413 |
| 356786 | Mar 9, 1989 | Mar 9, 1989 | Quintana Pet. Corp. | Refugio | Heard, Fannie V. W. Mrs. #53U | 5,902 | 39100706 |
| 356531 | Mar 3, 1989 | Mar 3, 1989 | Quintana Pet. Corp. | Refugio | Heard, Fannie V. W. Mrs. #100 | 6,017 | 39131577 |
| 356306 | Feb 23, 1989 | Feb 23, 1989 | Quintana Pet. Corp. | Refugio | Heard, Fannie V. W. Mrs. #50 | 5,925 | 39100572 |
| 356130 | Feb 17, 1989 | Feb 17, 1989 | Quintana Pet. Corp. | Refugio | Tom O'CONNOR(5800SAND)FIELD Unit #Q287 | 6,152 | 39131839 |
| 355337 | Jan 19, 1989 | Jan 19, 1989 | Quintana Pet. Corp. | Refugio | Heard, Fannie V. W. Mrs. #29 | 5,924 | 39100695 |
| 355293 | Jan 19, 1989 | Jan 19, 1989 | Quintana Pet. Corp. | Refugio | Williams, Maude et al "A" #31 | 5,923 | 39100439 |
| 355293Amendment | Jan 19, 1989 | Jan 19, 1989 | Quintana Pet. Corp. | Refugio | Tom O'CONNOR(5800SAND)FLD.UNIT #Q831 | 5,923 | 39100439 |
| 355166 | Jan 16, 1989 | Jan 16, 1989 | Quintana Pet. Corp. | Refugio | Williams, Maude et al "A" #D120 | 4,675 | 39131550 |
| 355165 | Jan 13, 1989 | Jan 13, 1989 | Quintana Pet. Corp. | Refugio | Tom O'Connor (5800 Sd)field Unit #Q234 | 5,925 | 39101148 |
| 354999 | Jan 11, 1989 | Jan 11, 1989 | Quintana Pet. Corp. | Refugio | Williams, Maude et al "A" #D110D | 5,851 | 39103783 |
| 353997 | Jan 4, 1989 | Jan 4, 1989 | Quintana Pet. Corp. | Refugio | Tom O'CONNOR(5800'SD)FIELD Unit #Q292 | 6,042 | 39131895 |
| 353996 | Jan 4, 1989 | Jan 4, 1989 | Quintana Pet. Corp. | Refugio | Tom O'CONNOR(5800'SD)FIELD Unit #Q293 | 6,100 | 39131894 |
| 353995 | Jan 4, 1989 | Jan 4, 1989 | Quintana Pet. Corp. | Refugio | Tom O'CONNOR(5800'SD) Field Unit #Q718 | 7,982 | 39131879 |
| 353994 | Jan 4, 1989 | Jan 4, 1989 | Quintana Pet. Corp. | Refugio | Tom O'CONNOR(5800'SD)FIELD Unit #Q719 | 6,100 | 39131900 |
| 353992 | Jan 4, 1989 | Jan 4, 1989 | Quintana Pet. Corp. | Refugio | Tom O'CONNOR(5800'SD)FIELD Unit #Q289 | 8,078 | 39131898 |
| 353906 | Jan 4, 1989 | Jan 4, 1989 | Quintana Pet. Corp. | Refugio | Williams, Maude et al "A" #D 4 | 5,766 | 39100271 |
| 353962 | Dec 7, 1988 | Dec 7, 1988 | Quintana Pet. Corp. | Refugio | Heard, Fannie V. W. Heard Mrs. #7G | 9,143 | 39100728 |
| 353962Amendment | Dec 7, 1988 | Dec 7, 1988 | Quintana Pet. Corp. | Refugio | Heard, Fannie V. W. Heard Mrs. #7G | 9,143 | 39100728 |
| 353899 | Dec 7, 1988 | Dec 7, 1988 | Quintana Pet. Corp. | Refugio | Tom O'CONNOR(5800'SD.)FIELD Unit #3108Q | 6,123 | 39131846 |
| 353587 | Nov 28, 1988 | Nov 28, 1988 | Quintana Pet. Corp. | Refugio | Tom OCONNOR(5800 Sand)field Unit #H053 | 5,903 | 39101334 |
| 352496 | Nov 23, 1988 | Nov 23, 1988 | Quintana Pet. Corp. | Refugio | Tom O'Connor (5800'SD)FIELD Unit #Q606 | 5,941 | 39100755 |
| 353251 | Nov 15, 1988 | Nov 15, 1988 | Quintana Pet. Corp. | Refugio | Tom O'Connor (5800'SD)FIELD Unit #Q611 | 6,750 | 39130194 |
| 352921 | Nov 3, 1988 | Nov 3, 1988 | Quintana Pet. Corp. | Hardin | Fuqua #1 | 10,000 | 19932507 |
| 352919 | Nov 3, 1988 | Nov 3, 1988 | Quintana Pet. Corp. | Jim Hogg | Stroman, D. C. #1 | 5,000 | 24731837 |
| 352697 | Oct 27, 1988 | Oct 27, 1988 | Quintana Pet. Corp. | Refugio | Williams, Maude et al "A" #D 97 | 4,615 | 39131241 |
| 352621 | Oct 25, 1988 | Oct 25, 1988 | Quintana Pet. Corp. | Refugio | Williams, Maude et al "A" #D 98 | 8,171 | 39131247 |
| 351792 | Sep 30, 1988 | Sep 30, 1988 | Quintana Pet. Corp. | Refugio | O'Connor, Thomas "C" #25 | 5,925 | 39101169 |
| 351688 | Sep 29, 1988 | Sep 29, 1988 | Quintana Pet. Corp. | Refugio | Tom O'CONNOR(5800SAND)FIELD Unit #N109 | 5,908 | 39101715 |
| 351376 | Sep 20, 1988 | Sep 20, 1988 | Quintana Pet. Corp. | Refugio | Williams, Maude et al "A" #D 34D | 5,400 | 39100287 |
| 350682 | Sep 7, 1988 | Sep 7, 1988 | Quintana Pet. Corp. | Refugio | Williams, Maude et al "A" #D155 | 4,650 | 39131982 |
| 350146 | Sep 7, 1988 | Sep 7, 1988 | Quintana Pet. Corp. | Refugio | O'Connor, Thomas "A" #103 | 5,900 | 39101559 |
| 350146Amendment | Sep 7, 1988 | Sep 7, 1988 | Quintana Pet. Corp. | Refugio | O'Connor, Thomas "A" #103 | 5,900 | 39101559 |
| 350698 | Aug 31, 1988 | Aug 31, 1988 | Quintana Pet. Corp. | Refugio | O'Connor, Thomas "C" #82U | 6,099 | 39131610 |
| 350686 | Aug 31, 1988 | Aug 31, 1988 | Quintana Pet. Corp. | Colorado | Cullen, H. R. et Al #8 | 12,000 | 08931745 |
| 350686Amendment | Aug 31, 1988 | Aug 31, 1988 | Quintana Pet. Corp. | Colorado | Cullen, H. R. et Al #8 | 10,810 | 08931745 |
| 350681 | Aug 31, 1988 | Aug 31, 1988 | Quintana Pet. Corp. | Refugio | Williams, Maude et al "A" #D156 | 4,650 | 39131981 |
| 350410 | Aug 24, 1988 | Aug 24, 1988 | Quintana Pet. Corp. | Refugio | Heard, Claude E. #2 | 5,960 | 39100665 |
| 350143 | Aug 18, 1988 | Aug 18, 1988 | Quintana Pet. Corp. | Refugio | Williams, Maude et al "A" #63U | 5,925 | 39100485 |
| 350145 | Aug 17, 1988 | Aug 17, 1988 | Quintana Pet. Corp. | Refugio | O'Connor, Thomas "A" #13 | 5,885 | 39101506 |
| 350145Amendment | Aug 17, 1988 | Aug 17, 1988 | Quintana Pet. Corp. | Refugio | O'Connor, Thomas "A" #13 | 5,885 | 39101506 |
| 349318 | Jul 28, 1988 | Jul 28, 1988 | Quintana Pet. Corp. | Refugio | Tom O'Connor (5800' SD) FLD Unit #H051 | 5,915 | 39101333 |
| 348091 | Jul 21, 1988 | Jul 21, 1988 | Quintana Pet. Corp. | Refugio | Tom O'Connor (5800'SD)FIELD Unit #3103Q | 6,113 | 39131690 |
| 348886 | Jul 18, 1988 | Jul 18, 1988 | Quintana Pet. Corp. | Jefferson | Carpenter, A. M. #1 | 13,000 | 24531946 |
| 348833 | Jul 15, 1988 | Jul 15, 1988 | Quintana Pet. Corp. | Refugio | Tom O'Connor (5800'SD)FIELD Unit #3107Q | 6,094 | 39131849 |
| 348831 | Jul 15, 1988 | Jul 15, 1988 | Quintana Pet. Corp. | Refugio | Tom O'Connor (5800'SD)FIELD Unit #Q526 | 6,100 | 39131617 |
| 348830 | Jul 15, 1988 | Jul 15, 1988 | Quintana Pet. Corp. | Refugio | Tom O'Connor (5800'SD)FIELD Unit #Q525 | 6,117 | 39131616 |
| 348829 | Jul 15, 1988 | Jul 15, 1988 | Quintana Pet. Corp. | Refugio | Tom O'Connor (5800'SD)FIELD Unit #Q281 | 6,116 | 39131609 |
| 348742 | Jul 12, 1988 | Jul 12, 1988 | Quintana Pet. Corp. | Refugio | Heard, Fannie V. W. Mrs. #26 | 5,925 | 39100558 |
| 346751 | Jun 16, 1988 | Jun 16, 1988 | Quintana Pet. Corp. | Refugio | Heard, Clement #3G | 5,980 | 39100853 |
| 347692 | Jun 15, 1988 | Jun 15, 1988 | Quintana Pet. Corp. | Refugio | Heard, Fannie V. W. Mrs. #41U | 5,925 | 39100700 |
| 347690 | Jun 14, 1988 | Jun 14, 1988 | Quintana Pet. Corp. | Refugio | Tom O'Connor (5800'SD)FIELD Unit #N217 | 5,882 | 39101727 |
| 347471 | Jun 7, 1988 | Jun 7, 1988 | Quintana Pet. Corp. | La Salle | South Texas Syndicate "A" #14 | 5,100 | 28300167 |
| 347036 | May 27, 1988 | May 27, 1988 | Quintana Pet. Corp. | Refugio | Tom O'Connor (5800'SD)FIELD Unit #H104 | 6,004 | 39130085 |
| 347035 | May 27, 1988 | May 27, 1988 | Quintana Pet. Corp. | Refugio | Heard, Claude E. et Al #28 | 6,500 | 39100642 |
| 345793 | May 25, 1988 | May 25, 1988 | Quintana Pet. Corp. | Refugio | Heard, Fannie V.W. Mrs. #7G | 9,143 | 39100728 |
| 346752 | May 23, 1988 | May 23, 1988 | Quintana Pet. Corp. | Refugio | Tom O'Connor (5800'SD)FIELD Unit #H054 | 5,913 | 39101415 |
| 344726 | May 10, 1988 | May 10, 1988 | Quintana Pet. Corp. | Refugio | Tom O'Connor (5800'SD)FIELD Unit #H043 | 5,908 | 39101364 |
| 346178 | May 9, 1988 | May 9, 1988 | Quintana Pet. Corp. | La Salle | South Texas Syndicate "A" #1086 | 5,802 | 28330707 |
| 346080 | May 6, 1988 | May 6, 1988 | Quintana Pet. Corp. | Refugio | Williams, Maude et al "A" #D 80 | 5,822 | 39100198 |
| 345943 | May 4, 1988 | May 4, 1988 | Quintana Pet. Corp. | Brazoria | Bryan, J. B. #1 | 12,000 | 03932287 |
| 345799 | Apr 29, 1988 | Apr 29, 1988 | Quintana Pet. Corp. | Refugio | Williams, Maude et al "A" #D 64 | 7,797 | 39130255 |
| 345796 | Apr 29, 1988 | Apr 29, 1988 | Quintana Pet. Corp. | Refugio | Heard, Fannie V. W. Mrs. #4G | 5,980 | 39100725 |
| 343528 | Apr 29, 1988 | Apr 29, 1988 | Quintana Pet. Corp. | Refugio | O'Connor, Thomas "A" #96 | 5,903 | 39101556 |
| 344728 | Apr 6, 1988 | Apr 6, 1988 | Quintana Pet. Corp. | Refugio | Williams, Maude et al "B" #33 | 6,021 | 39100493 |
| 344727 | Apr 5, 1988 | Apr 5, 1988 | Quintana Pet. Corp. | Refugio | O'Connor, Thomas "A" #108 | 5,908 | 39101762 |
| 344730 | Apr 4, 1988 | Apr 4, 1988 | Quintana Pet. Corp. | Refugio | Williams, Maude et al "A" #14F | 6,500 | 39100362 |
| 344729 | Apr 4, 1988 | Apr 4, 1988 | Quintana Pet. Corp. | Refugio | Heard, Claude E. et Al #35 | 6,300 | 39100661 |
| 344265 | Apr 4, 1988 | Apr 4, 1988 | Quintana Pet. Corp. | Colorado | Cullen, H. R. et Al #1 | 10,485 | 08900050 |
| 342763 | Mar 29, 1988 | Mar 29, 1988 | Quintana Pet. Corp. | Refugio | Heard, Clement #3 | 5,929 | 39100840 |
| 344263 | Mar 28, 1988 | Mar 28, 1988 | Quintana Pet. Corp. | Colorado | Cullen, H. R. et Al #6L | 10,500 | 08900804 |
| 344263Amendment | Mar 28, 1988 | Mar 28, 1988 | Quintana Pet. Corp. | Colorado | Cullen, H. R. et Al #6L | 10,500 | 08900804 |
| 344396 | Mar 25, 1988 | Mar 25, 1988 | Quintana Pet. Corp. | Refugio | O'Connor, Thomas "C" #3U | 5,920 | 39101161 |
| 344264 | Mar 25, 1988 | Mar 25, 1988 | Quintana Pet. Corp. | Colorado | Cullen, H. R. et Al #3L | 8,512 | 08900051 |
| 344264Amendment | Mar 25, 1988 | Mar 25, 1988 | Quintana Pet. Corp. | Colorado | Cullen, H. R. et Al #3L | 8,512 | 08900051 |
| 344019 | Mar 17, 1988 | Mar 17, 1988 | Quintana Pet. Corp. | Colorado | Cullen, H. R. et Al #2 | 10,195 | 08900057 |