| 366210 | Nov 9, 1989 | Nov 9, 1989 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #190 | 3,100 | 50732268 |
| 364442 | Oct 2, 1989 | Oct 2, 1989 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #14 | 3,090 | 50731200 |
| 362397 | Aug 11, 1989 | Aug 11, 1989 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #115 | 3,185 | 50731794 |
| 362319 | Aug 7, 1989 | Aug 7, 1989 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #25 | 3,120 | 50731213 |
| 362318 | Aug 7, 1989 | Aug 7, 1989 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #131 | 3,170 | 50731800 |
| 362144 | Aug 2, 1989 | Aug 2, 1989 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #87 | 3,030 | 50731731 |
| 362143 | Aug 2, 1989 | Aug 2, 1989 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #125 | 3,023 | 50731803 |
| 361525 | Jul 18, 1989 | Jul 18, 1989 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #160 | 2,602 | 50731854 |
| 361524 | Jul 18, 1989 | Jul 18, 1989 | Winn Exploration/Dulce Company | Zavala | Glasscock, Leta #4 | 5,456 | 50731952 |
| 358553 | Apr 25, 1989 | Apr 25, 1989 | Winn Exploration/Dulce Company | Leon | Ward Easterling #1 | 10,500 | 28931023 |
| 358227 | Apr 19, 1989 | Apr 19, 1989 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #200 | 2,756 | 50731915 |
| 358226 | Apr 19, 1989 | Apr 19, 1989 | Winn Exploration/Dulce Company | Zavala | Spillar #1A | 1,768 | 50731091 |
| 357532 | Mar 30, 1989 | Mar 30, 1989 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #119 | 3,007 | 50731783 |
| 357532Amendment | Mar 30, 1989 | Mar 30, 1989 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #119 | 3,007 | 50731783 |
| 357083 | Mar 17, 1989 | Mar 17, 1989 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #184 | 2,712 | 50731901 |
| 356564 | Mar 3, 1989 | Mar 3, 1989 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #65 | 2,945 | 50731692 |
| 356564Amendment | Mar 3, 1989 | Mar 3, 1989 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #65 | 2,945 | 50731692 |
| 355947 | Feb 15, 1989 | Feb 15, 1989 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #161 | 3,068 | 50731874 |
| 354581 | Dec 22, 1988 | Dec 22, 1988 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #200 | 2,756 | 50731915 |
| 354580 | Dec 22, 1988 | Dec 22, 1988 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #198 | 2,754 | 50731916 |
| 354579 | Dec 22, 1988 | Dec 22, 1988 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #62 | 2,746 | 50731659 |
| 352887 | Nov 1, 1988 | Nov 1, 1988 | Winn Exploration/Dulce Company | Nueces | Till, Oliver F. et Al #1 | 7,400 | 35532138 |
| 351266 | Sep 19, 1988 | Sep 19, 1988 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #49 | 3,465 | 50731584 |
| 348877 | Jul 18, 1988 | Jul 18, 1988 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #9 | 2,849 | 50731190 |
| 348443 | Jul 5, 1988 | Jul 5, 1988 | Winn Exploration/Dulce Company | Nueces | Wuensche, Helen Coleman et Al #1 | 7,000 | 35532117 |
| 348443Amendment | Jul 5, 1988 | Jul 5, 1988 | Winn Exploration/Dulce Company | Nueces | Wuensche, Helen Coleman et Al #1 | 7,000 | 35532117 |
| 347383 | Jun 8, 1988 | Jun 8, 1988 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #97 | 2,990 | 50731771 |
| 346028 | May 5, 1988 | May 5, 1988 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #167 | 3,070 | 50731891 |
| 345867 | May 3, 1988 | May 3, 1988 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #137 | 3,155 | 50731838 |
| 342609 | Feb 16, 1988 | Feb 16, 1988 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #127 | 2,941 | 50731802 |
| 342555 | Feb 16, 1988 | Feb 16, 1988 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #157 | 3,051 | 50731920 |
| 342351 | Feb 5, 1988 | Feb 5, 1988 | Winn Exploration/Dulce Company | Nueces | Till, Oliver F. #1SW | 6,730 | 35505191 |
| 341367 | Jan 13, 1988 | Jan 13, 1988 | Winn Exploration/Dulce Company | Nueces | Till, Oliver F. #1SW | 5,000 | 35505171 |
| 336147 | Sep 18, 1987 | Sep 18, 1987 | Winn Exploration/Dulce Company | Zavala | Glasscock, Leta J. #3 | 6,012 | 50730129 |
| 335851 | Sep 16, 1987 | Sep 16, 1987 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #45 | 3,017 | 50731551 |
| 334757 | Aug 20, 1987 | Aug 20, 1987 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #118 | 2,780 | 50731809 |
| 333625 | Jul 30, 1987 | Jul 30, 1987 | Winn Exploration/Dulce Company | Jackson | Rogers #1 | 9,000 | 23932363 |
| 333240 | Jul 21, 1987 | Jul 21, 1987 | Winn Exploration/Dulce Company | Zavala | Jackson #2 | 2,128 | 50731172 |
| 324148 | Dec 10, 1986 | Dec 10, 1986 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #1A | 2,450 | 50700732 |
| 324147 | Dec 10, 1986 | Dec 10, 1986 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #75 | 1,533 | 50731698 |
| 324146 | Dec 10, 1986 | Dec 10, 1986 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #8 | 3,050 | 50731189 |
| 322213 | Oct 28, 1986 | Oct 28, 1986 | Winn Exploration/Dulce Company | Zavala | Jackson #5 | 2,050 | 50731118 |
| 321463 | Oct 10, 1986 | Oct 10, 1986 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #125 | 3,023 | 50731803 |
| 321459 | Oct 10, 1986 | Oct 10, 1986 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #163 | 3,172 | 50731929 |
| 303607 | Jun 26, 1986 | Jun 26, 1986 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #2 | 2,724 | 50731183 |
| 296067 | Jan 23, 1986 | Jan 23, 1986 | Winn Exploration/Dulce Company | Concho | Lubke Heirs #1 | 4,000 | 09530864 |
| 293811 | Dec 30, 1985 | Dec 30, 1985 | Winn Exploration/Dulce Company | Concho | Green, Joe Bob #1 | 4,000 | 09530856 |
| 288192 | Oct 23, 1985 | Oct 23, 1985 | Winn Exploration/Dulce Company | Zavala | Flowers #7 | 3,500 | 50732167 |
| 287156 | Oct 11, 1985 | Oct 11, 1985 | Winn Exploration/Dulce Company | Zavala | Haskett #10 | 3,500 | 50732165 |
| 287153 | Oct 11, 1985 | Oct 11, 1985 | Winn Exploration/Dulce Company | Zavala | Flowers #5 | 3,500 | 50732163 |
| 287154 | Oct 11, 1985 | Oct 11, 1985 | Winn Exploration/Dulce Company | Zavala | Flowers #6 | 3,500 | 50732164 |
| 287251 | Oct 11, 1985 | Oct 11, 1985 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #47 | 3,230 | 50731585 |
| 286574 | Oct 3, 1985 | Oct 3, 1985 | Winn Exploration/Dulce Company | Zavala | Flowers #4 | 3,500 | 50732161 |
| 284709 | Sep 10, 1985 | Sep 10, 1985 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #161 | 3,200 | 50731874 |
| 283968 | Aug 30, 1985 | Aug 30, 1985 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #143 | 3,045 | 50731831 |
| 282285 | Aug 13, 1985 | Aug 13, 1985 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #182 | 3,156 | 50731908 |
| 282186 | Aug 7, 1985 | Aug 7, 1985 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #54 | 3,302 | 50731632 |
| 281526 | Aug 1, 1985 | Aug 1, 1985 | Winn Exploration/Dulce Company | Zavala | Flowers #3 | 3,500 | 50732151 |
| 279084 | Jul 1, 1985 | Jul 1, 1985 | Winn Exploration/Dulce Company | Zavala | Spillar #2 | 1,900 | 50731085 |
| 278293 | Jun 20, 1985 | Jun 20, 1985 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #192 | 3,500 | 50732139 |
| 277736 | Jun 14, 1985 | Jun 14, 1985 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #186 | 2,850 | 50731905 |
| 276953 | Jun 5, 1985 | Jun 5, 1985 | Winn Exploration/Dulce Company | Zavala | Haskett #8 | 3,000 | 50732136 |
| 276955 | Jun 5, 1985 | Jun 5, 1985 | Winn Exploration/Dulce Company | Zavala | Haskett #9 | 2,700 | 50732137 |
| 276958 | Jun 5, 1985 | Jun 5, 1985 | Winn Exploration/Dulce Company | Zavala | King-Wilson Unit #2 | 3,000 | 50732138 |
| 276949 | Jun 5, 1985 | Jun 5, 1985 | Winn Exploration/Dulce Company | Zavala | Bennett #11 | 1,700 | 50732134 |
| 276968 | Jun 5, 1985 | Jun 5, 1985 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #40 | 2,770 | 50731322 |
| 271010 | Mar 29, 1985 | Mar 29, 1985 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #185 | 2,000 | 50732119 |
| 269445 | Mar 14, 1985 | Mar 14, 1985 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #183 | 2,000 | 50732113 |
| 269172 | Mar 12, 1985 | Mar 12, 1985 | Winn Exploration/Dulce Company | Maverick | Kincaid #1 | 1,200 | 32332252 |
| 269191 | Mar 12, 1985 | Mar 12, 1985 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #148 | 2,000 | 50732112 |
| 269160 | Mar 12, 1985 | Mar 12, 1985 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #181 | 2,000 | 50732111 |
| 261856 | Dec 20, 1984 | Dec 20, 1984 | L & B Oil Co. Inc. | Gaines | Cox #1 | 9,500 | 16533101 |
| 257411 | Nov 12, 1984 | Nov 12, 1984 | Winn Exploration/Dulce Company | Colorado | Bass, Lillie #1 | 850 | 08931535 |
| 255285 | Oct 18, 1984 | Oct 18, 1984 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #103 | 3,110 | 50731759 |
| 254794 | Oct 17, 1984 | Oct 17, 1984 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #64 | 2,704 | 50731676 |
| 251666 | Sep 18, 1984 | Sep 18, 1984 | Winn Exploration/Dulce Company | Fayette | Luycx, H. L. #1 | 1,300 | 14931896 |
| 251668 | Sep 18, 1984 | Sep 18, 1984 | Winn Exploration/Dulce Company | Fayette | Luycx, H. L. #2 | 1,300 | 14931897 |
| 251553 | Sep 14, 1984 | Sep 14, 1984 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #16 | 2,875 | 50731205 |
| 251363 | Sep 14, 1984 | Sep 14, 1984 | Winn Exploration/Dulce Company | Nueces | Bolland, Ernest #1 | 8,500 | 35532359 |
| 251375 | Sep 13, 1984 | Sep 13, 1984 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #54 | 3,302 | 50731632 |
| 248701 | Aug 17, 1984 | Aug 17, 1984 | Winn Exploration/Dulce Company | Zavala | Glasscock, Leta #9 | 6,920 | 50731999 |
| 246418 | Jul 27, 1984 | Jul 27, 1984 | Winn Exploration/Dulce Company | Zavala | Glasscock, Leta #7 | 5,307 | 50731967 |
| 242806 | Jun 21, 1984 | Jun 21, 1984 | Winn Exploration/Dulce Company | Zavala | Glasscock, Leta #10 | 7,500 | 50732057 |
| 242805 | Jun 21, 1984 | Jun 21, 1984 | Winn Exploration/Dulce Company | Zavala | Glasscock, Leta #11 | 7,500 | 50732056 |
| 239926 | May 24, 1984 | May 24, 1984 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #12 | 2,770 | 50731193 |
| 230308 | Feb 23, 1984 | Feb 23, 1984 | Winn Exploration/Dulce Company | Duval | Campos, Zacarias et Al #2 | 16,600 | 13136413 |
| 226856 | Jan 17, 1984 | Jan 17, 1984 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #24 | 2,705 | 50732028 |
| 226445 | Dec 30, 1983 | Dec 30, 1983 | Winn Exploration/Dulce Company | Zavala | Smyth #9 | 2,250 | 50731119 |
| 225003 | Dec 29, 1983 | Dec 29, 1983 | Winn Exploration/Dulce Company | Zavala | Jackson #3 | 2,362 | 50731173 |
| 221953 | Nov 28, 1983 | Nov 28, 1983 | Winn Exploration/Dulce Company | Donley | Browder, Virginia #1 | 6,700 | 12930108 |
| 220997 | Nov 17, 1983 | Nov 17, 1983 | Winn Exploration/Dulce Company | Maverick | Riskind Mineral Trust, et Al #1 | 1,700 | 32332182 |
| 219259 | Oct 24, 1983 | Oct 24, 1983 | Winn Exploration/Dulce Company | Duval | Campos, Zacarias, et Al #1 | 16,600 | 13136355 |
| 216857 | Oct 11, 1983 | Oct 11, 1983 | Winn Exploration/Dulce Company | La Salle | Cartwright, Lon #1 | 9,400 | 28331007 |
| 216858 | Oct 11, 1983 | Oct 11, 1983 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #8F | 2,800 | 50780272 |
| 215974 | Oct 3, 1983 | Oct 3, 1983 | Winn Exploration/Dulce Company | Zavala | Glasscock, Leta #9 | 7,000 | 50731999 |
| 211071 | Sep 9, 1983 | Sep 9, 1983 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #122 | 3,155 | 50731806 |
| 210964 | Sep 9, 1983 | Sep 9, 1983 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #135 | 3,160 | 50731839 |
| 210920 | Sep 9, 1983 | Sep 9, 1983 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #67D | 3,190 | 50731697 |
| 210917 | Sep 9, 1983 | Sep 9, 1983 | Winn Exploration/Dulce Company | Zavala | Pryor Ranch #64 | 2,704 | 50731676 |
| 210617 | Sep 8, 1983 | Sep 8, 1983 | Winn Exploration/Dulce Company | Zavala | Mangum, Emma Pryor Estate #1 | 3,400 | 50731991 |