| 304752 | Jul 28, 1986 | Jul 28, 1986 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P. H. "B" #10 | 7,600 | 05731085 |
| 304629 | Jul 28, 1986 | Jul 28, 1986 | Williams Expl Co a Delaware Corp | Victoria | Fagan, L. A. #1 | 8,264 | 46931677 |
| 303629 | Jun 26, 1986 | Jun 26, 1986 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P. H. "D" #15 | 8,308 | 05731384 |
| 303500 | Jun 24, 1986 | Jun 24, 1986 | Williams Expl Co a Delaware Corp | Calhoun | Welder, Patrick H. #9L | 8,375 | 05731040 |
| 303376 | Jun 19, 1986 | Jun 19, 1986 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P. H. "D" #1L | 8,500 | 05730962 |
| 301455 | Apr 24, 1986 | Apr 24, 1986 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P. H. "B" #4 | 8,450 | 05730920 |
| 299666 | Mar 17, 1986 | Mar 17, 1986 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P. H. "D" #3D | 8,373 | 05731016 |
| 299029 | Feb 27, 1986 | Feb 27, 1986 | Williams Expl Co a Delaware Corp | Victoria | Fagan, L. A. #3 | 8,500 | 46932467 |
| 297821 | Feb 14, 1986 | Feb 14, 1986 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P. H. "D" #16 | 7,600 | 05731410 |
| 296134 | Jan 24, 1986 | Jan 24, 1986 | Williams Expl Co a Delaware Corp | Wharton | Anderson, A. et Al #5C | 7,800 | 48132949 |
| 293559 | Dec 23, 1985 | Dec 23, 1985 | Williams Expl Co a Delaware Corp | Wharton | Sand Ridge Baptist Church #1T | 7,806 | 48132943 |
| 289722 | Nov 12, 1985 | Nov 12, 1985 | Williams Expl Co a Delaware Corp | Wharton | Gordon, T. #2 | 5,300 | 48132962 |
| 289738 | Nov 12, 1985 | Nov 12, 1985 | Williams Expl Co a Delaware Corp | Brazoria | Cockrell, E. #1 | 6,100 | 03932106 |
| 289726 | Nov 12, 1985 | Nov 12, 1985 | Williams Expl Co a Delaware Corp | Colorado | Gordon, T. #1 | 5,300 | 08931632 |
| 289739 | Nov 12, 1985 | Nov 12, 1985 | Williams Expl Co a Delaware Corp | Brazoria | Cockrell, E. #2 | 5,300 | 03932107 |
| 287946 | Oct 21, 1985 | Oct 21, 1985 | Williams Expl Co a Delaware Corp | Martin | Billingsley, R. #1 | 11,700 | 31733271 |
| 287921 | Oct 21, 1985 | Oct 21, 1985 | Williams Expl Co a Delaware Corp | Wharton | Anderson, A. et Al #4 | 7,800 | 48132920 |
| 287079 | Oct 3, 1985 | Oct 3, 1985 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P. H. "D" #3D | 8,373 | 05731016 |
| 284454 | Sep 10, 1985 | Sep 10, 1985 | Williams Expl Co a Delaware Corp | Brazoria | Hawes, H. R. Jr. et Al #1 | 11,500 | 03932096 |
| 283658 | Aug 30, 1985 | Aug 30, 1985 | Williams Expl Co a Delaware Corp | Hardin | De Lajarza, A. M. #4 | 1,700 | 19932322 |
| 281055 | Jul 25, 1985 | Jul 25, 1985 | Williams Expl Co a Delaware Corp | Wharton | Anderson, A. et Al #3 | 8,000 | 48132889 |
| 279540 | Jul 5, 1985 | Jul 5, 1985 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P. H. "D" #15 | 8,308 | 05731384 |
| 276008 | May 28, 1985 | May 28, 1985 | Williams Expl Co a Delaware Corp | Polk | Carter, W. T. #1 | 14,300 | 37330569 |
| 273078 | Apr 23, 1985 | Apr 23, 1985 | Williams Expl Co a Delaware Corp | Victoria | Watts, M. J. et Al. #1 | 9,235 | 46932391 |
| 273072 | Apr 23, 1985 | Apr 23, 1985 | Williams Expl Co a Delaware Corp | Wharton | Anderson, A. et Al #2 | 8,000 | 48132850 |
| 273079 | Apr 23, 1985 | Apr 23, 1985 | Williams Expl Co a Delaware Corp | Victoria | Keeran "A" #4 | 7,800 | 46932392 |
| 270076 | Mar 20, 1985 | Mar 20, 1985 | Williams Expl Co a Delaware Corp | Galveston | Federal Gayatt #1 | 9,500 | 16731054 |
| 264116 | Jan 14, 1985 | Jan 14, 1985 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P. H. "D" #14 | 9,000 | 05731363 |
| 259616 | Dec 3, 1984 | Dec 3, 1984 | Williams Expl Co a Delaware Corp | Hardin | Choate Fee Block 1, Lot 2 #1 | 3,850 | 19932224 |
| 254695 | Oct 16, 1984 | Oct 16, 1984 | Williams Expl Co a Delaware Corp | Hardin | Choate Block 4, Lot 3 #16 | 4,000 | 19932190 |
| 252598 | Sep 25, 1984 | Sep 25, 1984 | Williams Expl Co a Delaware Corp | Polk | Carter, W. T. #2 | 14,000 | 37330598 |
| 251993 | Sep 19, 1984 | Sep 19, 1984 | Williams Expl Co a Delaware Corp | Hardin | De Lejarza, A. M. #2 | 4,700 | 19932179 |
| 251972 | Sep 19, 1984 | Sep 19, 1984 | Williams Expl Co a Delaware Corp | Live Oak | Baker, E. #1 | 13,000 | 29733489 |
| 251991 | Sep 19, 1984 | Sep 19, 1984 | Williams Expl Co a Delaware Corp | Hardin | De Lejarza, A. M. #3 | 3,100 | 19932178 |
| 251407 | Sep 13, 1984 | Sep 13, 1984 | Williams Expl Co a Delaware Corp | Hardin | Choate Block 4, Lot 3 #15 | 3,880 | 19932174 |
| 250951 | Sep 6, 1984 | Sep 6, 1984 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P. H. "C" #1 | 9,000 | 05731024 |
| 250305 | Aug 31, 1984 | Aug 31, 1984 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P. H. "D" #13 | 6,300 | 05731338 |
| 247611 | Aug 8, 1984 | Aug 8, 1984 | Williams Expl Co a Delaware Corp | Reeves | Collier Enterprises #2 | 5,400 | 38931543 |
| 245413 | Jul 18, 1984 | Jul 18, 1984 | Williams Expl Co a Delaware Corp | Hardin | Choate Block 1, Lot 4A #1 | 3,600 | 19932157 |
| 244512 | Jul 10, 1984 | Jul 10, 1984 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P. H. "D" #4 | 8,800 | 05731022 |
| 241527 | Jun 11, 1984 | Jun 11, 1984 | Williams Expl Co a Delaware Corp | Victoria | Keeran #4 | 7,700 | 46931535 |
| 239446 | May 18, 1984 | May 18, 1984 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P. H. "C" #1U | 9,000 | 05731024 |
| 235416 | Apr 12, 1984 | Apr 12, 1984 | Williams Expl Co a Delaware Corp | Jefferson | Aubey, L. J. #1 | 11,000 | 24531768 |
| 232901 | Mar 20, 1984 | Mar 20, 1984 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P. H. "D" #12 | 6,300 | 05731313 |
| 231406 | Mar 5, 1984 | Mar 5, 1984 | Williams Expl Co a Delaware Corp | Victoria | Keeran "B" #1 | 7,720 | 46931572 |
| 221462 | Nov 21, 1983 | Nov 21, 1983 | Williams Expl Co a Delaware Corp | Jim Wells | Smith, Herbert #5 | 5,870 | 24931292 |
| 220956 | Nov 15, 1983 | Nov 15, 1983 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P. H. "D" #11 | 6,100 | 05731290 |
| 220308 | Nov 8, 1983 | Nov 8, 1983 | Williams Expl Co a Delaware Corp | Hardin | Choate Block 4 Lot 3 #13 | 4,000 | 19932061 |
| 219191 | Oct 28, 1983 | Oct 28, 1983 | Williams Expl Co a Delaware Corp | Reeves | Collier Enterprises #1 | 5,900 | 38931440 |
| 219204 | Oct 28, 1983 | Oct 28, 1983 | Williams Expl Co a Delaware Corp | Polk | Carter, W. T. #1 | 14,300 | 37330569 |
| 217506 | Oct 18, 1983 | Oct 18, 1983 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P. H. "D" #1L | 8,500 | 05730962 |
| 217711 | Oct 18, 1983 | Oct 18, 1983 | Williams Expl Co a Delaware Corp | Brooks | Lasater #1 | 10,500 | 04731317 |
| 216850 | Oct 6, 1983 | Oct 6, 1983 | Williams Expl Co a Delaware Corp | Jefferson | Ganter, Rev. B. J. #1 | 15,000 | 24531723 |
| 216086 | Oct 3, 1983 | Oct 3, 1983 | Williams Expl Co a Delaware Corp | Live Oak | Harmon, Donald D. #1 | 12,000 | 29733356 |
| 211969 | Sep 12, 1983 | Sep 12, 1983 | Williams Expl Co a Delaware Corp | Hardin | Choate #12 | 4,000 | 19932019 |
| 211967 | Sep 12, 1983 | Sep 12, 1983 | Williams Expl Co a Delaware Corp | Hardin | Choate #11 | 4,000 | 19932018 |
| 211966 | Sep 12, 1983 | Sep 12, 1983 | Williams Expl Co a Delaware Corp | San Jacinto | Foster Minerals Ltd. #1 | 9,000 | 40730479 |
| 206642 | Aug 19, 1983 | Aug 19, 1983 | Williams Expl Co a Delaware Corp | Jim Wells | Driscoll Foundation #1 | 15,500 | 24931704 |
| 203621 | Aug 1, 1983 | Aug 1, 1983 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P.H. "D" #10 | 7,196 | 05731264 |
| 203003 | Jul 27, 1983 | Jul 27, 1983 | Williams Expl Co a Delaware Corp | Jim Wells | Smith, Herbert #3 | 5,844 | 24930840 |
| 201407 | Jul 13, 1983 | Jul 13, 1983 | Williams Expl Co a Delaware Corp | Hardin | Lejarza, A.M. #2 | 4,000 | 19931932 |
| 199382 | Jun 23, 1983 | Jun 23, 1983 | Williams Expl Co a Delaware Corp | Hardin | Choate Block 4 Lot 3 #10 | 4,000 | 19931924 |
| 199381 | Jun 23, 1983 | Jun 23, 1983 | Williams Expl Co a Delaware Corp | Hardin | Choate Block 4 Lot 3 #9 | 4,000 | 19931923 |
| 198725 | Jun 17, 1983 | Jun 17, 1983 | Williams Expl Co a Delaware Corp | Calhoun | Briggs, Barbara B. et Al #1 | 9,237 | 05731254 |
| 198724 | Jun 17, 1983 | Jun 17, 1983 | Williams Expl Co a Delaware Corp | Victoria | Keeran "B" #2 | 8,000 | 46931780 |
| 198947 | Jun 16, 1983 | Jun 16, 1983 | Williams Expl Co a Delaware Corp | Hardin | Choate Block 2 Lot 7 #10 | 4,000 | 19931920 |
| 198155 | Jun 9, 1983 | Jun 9, 1983 | Williams Expl Co a Delaware Corp | Jim Wells | Smith, Herbert #5 | 5,870 | 24931292 |
| 197022 | Jun 2, 1983 | Jun 2, 1983 | Williams Expl Co a Delaware Corp | Hardin | Choate Block 4 Lot 3 #8 | 4,000 | 19931906 |
| 186118 | Feb 16, 1983 | Feb 16, 1983 | Williams Expl Co a Delaware Corp | De Witt | Murray, Dale #1 | 11,000 | 12331291 |
| 186013 | Feb 11, 1983 | Feb 11, 1983 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P.H. "D" #9 | 8,000 | 05731236 |
| 184770 | Jan 31, 1983 | Jan 31, 1983 | Williams Expl Co a Delaware Corp | Hardin | Lejarza, A. M. #1 | 3,400 | 19903363 |
| 181572 | Dec 13, 1982 | Dec 13, 1982 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P. H. "D" #6 | 8,650 | 05731136 |
| 220302 | Nov 8, 1982 | Nov 8, 1982 | Williams Expl Co a Delaware Corp | Hardin | Choate Block 4 Lot 3 #14 | 4,000 | 19932060 |
| 177538 | Oct 29, 1982 | Oct 29, 1982 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P. H. "D" #1 | 8,500 | 05730962 |
| 176117 | Oct 29, 1982 | Oct 29, 1982 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P. H. "D" #5 | 6,352 | 05731077 |
| 175951 | Oct 29, 1982 | Oct 29, 1982 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P.H. "B" #7 | 8,600 | 05730990 |
| 175031 | Oct 20, 1982 | Oct 20, 1982 | Williams Expl Co a Delaware Corp | Jasper | Arco Fee #1 | 11,112 | 24130388 |
| 174336 | Oct 13, 1982 | Oct 13, 1982 | Williams Expl Co a Delaware Corp | Hardin | Choate Block 4, Lot 3 #6 | 4,300 | 19931794 |
| 174333 | Oct 13, 1982 | Oct 13, 1982 | Williams Expl Co a Delaware Corp | Hardin | Choate Block 4, Lot 3 #7 | 4,300 | 19931793 |
| 174329 | Oct 13, 1982 | Oct 13, 1982 | Williams Expl Co a Delaware Corp | Hardin | Choate Block 2, Lot 7 #8 | 4,300 | 19931792 |
| 174326 | Oct 13, 1982 | Oct 13, 1982 | Williams Expl Co a Delaware Corp | Hardin | Choate Block 2, Lot 7 #7 | 4,300 | 19931791 |
| 174324 | Oct 13, 1982 | Oct 13, 1982 | Williams Expl Co a Delaware Corp | Hardin | Choate Block 2, Lot 7 #9 | 4,300 | 19931790 |
| 173653 | Oct 5, 1982 | Oct 5, 1982 | Williams Expl Co a Delaware Corp | Refugio | Koontz, A.C. #1 | 6,062 | 39131593 |
| 173305 | Sep 29, 1982 | Sep 29, 1982 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P.H. "D" #8 | 8,600 | 05731208 |
| 166386 | Jul 16, 1982 | Jul 16, 1982 | Williams Expl Co a Delaware Corp | Refugio | Barber, Agnes West #2 | 6,100 | 39131675 |
| 164510 | Jun 23, 1982 | Jun 23, 1982 | Williams Expl Co a Delaware Corp | Refugio | Barber, Agnes West #1 | 1,607 | 39131564 |
| 172663 | Jun 15, 1982 | Jun 15, 1982 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P.H. "D" #2L | 8,784 | 05730982 |
| 165653 | Jun 15, 1982 | Jun 15, 1982 | Williams Expl Co a Delaware Corp | Victoria | Keeran B #1 | 7,720 | 46931572 |
| 160724 | May 13, 1982 | May 13, 1982 | Williams Expl Co a Delaware Corp | Calhoun | Welder, P.H. "D" #7 | 8,600 | 05731181 |
| 136574 | Oct 15, 1981 | Oct 15, 1981 | Williams Expl Co a Delaware Corp | Wharton | Anderson, A. et Al #1 | 8,000 | 48132256 |
| 115838 | Apr 23, 1981 | Apr 23, 1981 | Williams Expl Co a Delaware Corp | Chambers | State Lease 83618 #1 | 8,688 | 07131190 |
| 102273 | Dec 15, 1980 | Dec 15, 1980 | Williams Expl Co a Delaware Corp | Live Oak | Lyne, J. R. #3 | 11,600 | 29732024 |
| 40921 | Nov 27, 1978 | Nov 27, 1978 | Williams Expl Co a Delaware Corp | Wheeler | Blonstein Estate #1 | 11,300 | 48330565 |
| 32095 | Sep 7, 1978 | Sep 7, 1978 | Williams Expl Co a Delaware Corp | Madison | Harris, L. S. et al Unit #1 | 9,800 | 31330231 |
| 30087 | Aug 2, 1978 | Aug 2, 1978 | Williams Expl Co a Delaware Corp | Wheeler | Calcote #1 | 11,350 | 48330566 |
| 30085 | Aug 2, 1978 | Aug 2, 1978 | Williams Expl Co a Delaware Corp | Wheeler | Blonstein Estate #1 | 11,300 | 48330565 |