| 377550 | Sep 6, 1990 | Sep 6, 1990 | Union Expl. Partners, Ltd. | Jackson | Neibuhr, A. L. #11 | 6,420 | 23932497 |
| 377550Amendment | Sep 6, 1990 | Sep 6, 1990 | Union Expl. Partners, Ltd. | Jackson | Neibuhr, A. L. #11 | 6,420 | 23932497 |
| 377235 | Aug 28, 1990 | Aug 28, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Thompson, J. T. 49 #1 | 2,994 | 46700828 |
| 377234 | Aug 28, 1990 | Aug 28, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Howell, D. R. 45 #6 | 2,970 | 46700878 |
| 377233 | Aug 28, 1990 | Aug 28, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Howell, D. R. 45 #4 | 2,950 | 46701255 |
| 375872 | Jul 24, 1990 | Jul 24, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Jarman, W. T. 37 #10 | 2,919 | 46700222 |
| 375653 | Jul 19, 1990 | Jul 19, 1990 | Union Expl. Partners, Ltd. | Jackson | Niebuhr, A. L. #11 | 6,420 | 23932497 |
| 374137 | Jun 22, 1990 | Jun 22, 1990 | Union Expl. Partners, Ltd. | Van Zandt | York, Ella 13 #11 | 3,250 | 46730796 |
| 374571 | Jun 15, 1990 | Jun 15, 1990 | Union Expl. Partners, Ltd. | Henderson | Cresslenn Ranch #2 | 13,850 | 21330666 |
| 374138 | Jun 5, 1990 | Jun 5, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Tunnell, I.P. 300 #14 | 2,370 | 46730797 |
| 374136 | Jun 5, 1990 | Jun 5, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Bracken, J.A. 503 #13 | 3,050 | 46730798 |
| 372930 | May 3, 1990 | May 3, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Cvwu #4514 | 3,110 | 46730793 |
| 372929 | May 3, 1990 | May 3, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Howell, D. R. 45 #13 | 2,460 | 46730794 |
| 372137 | May 3, 1990 | May 3, 1990 | Union Expl. Partners, Ltd. | Van Zandt | York, Ella 13 #10 | 3,030 | 46730787 |
| 372657 | Apr 26, 1990 | Apr 26, 1990 | Union Expl. Partners, Ltd. | Wharton | Lancaster, W.H. #3 | 7,500 | 48101745 |
| 372168 | Apr 13, 1990 | Apr 13, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Bracken, J. A. 35 #15 | 3,220 | 46730789 |
| 372139 | Apr 12, 1990 | Apr 12, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Taylor, T.J. 33 #7 | 2,510 | 46730788 |
| 372138 | Apr 12, 1990 | Apr 12, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Bracken, J. A. 503 #12 | 2,480 | 46730786 |
| 372135 | Apr 12, 1990 | Apr 12, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Cvwu #3001C | 3,080 | 46730784 |
| 372134 | Apr 12, 1990 | Apr 12, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Swain, W. F. 36 #10 | 3,250 | 46730785 |
| 369827 | Feb 13, 1990 | Feb 13, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Thompson, I. W. 401 #18 | 3,170 | 46730778 |
| 369826 | Feb 13, 1990 | Feb 13, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Howell, D. R. 45 #12 | 3,200 | 46730777 |
| 369826Amendment | Feb 13, 1990 | Feb 13, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Howell, D. R. 45 #12 | 3,200 | 46730777 |
| 369825 | Feb 13, 1990 | Feb 13, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Wells, R. L. 47 #26 | 3,220 | 46730776 |
| 369639 | Feb 13, 1990 | Feb 13, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Shivers, J. R. 12 #10 | 3,120 | 46730730 |
| 369574 | Feb 12, 1990 | Feb 12, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Howell, D. R. 45 #10 | 3,135 | 46730706 |
| 368866 | Feb 2, 1990 | Feb 2, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Blackstock, F. L. 106 #2 | 2,934 | 46780206 |
| 368450 | Jan 9, 1990 | Jan 9, 1990 | Union Expl. Partners, Ltd. | Van Zandt | Clark, N. E. 65 #5 | 3,053 | 46700813 |
| 367231 | Dec 14, 1989 | Dec 14, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Gilbert, H. C. 43 #10 | 3,270 | 46730739 |
| 366052 | Dec 14, 1989 | Dec 14, 1989 | Union Expl. Partners, Ltd. | Jackson | Hamons, Dan #3 | 6,400 | 23932452 |
| 366163 | Dec 5, 1989 | Dec 5, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Shirley, M. F. 107 #6 | 2,982 | 46700564 |
| 367226 | Dec 4, 1989 | Dec 4, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Tunnell, I. P. 300 #11 | 2,370 | 46730768 |
| 367225 | Dec 4, 1989 | Dec 4, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Gilbert, H. C. 43 #11 | 2,450 | 46730771 |
| 367224 | Dec 4, 1989 | Dec 4, 1989 | Union Expl. Partners, Ltd. | Van Zandt | White, W. H. 504 #4 | 3,350 | 46730772 |
| 367223 | Dec 4, 1989 | Dec 4, 1989 | Union Expl. Partners, Ltd. | Van Zandt | White, W. H. 504 #3 | 3,050 | 46730770 |
| 367222 | Dec 4, 1989 | Dec 4, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Thompson, I. W. 401 #17 | 3,040 | 46730773 |
| 367221 | Dec 4, 1989 | Dec 4, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Thompson, I. W. 401 #16 | 2,420 | 46730769 |
| 366927 | Dec 4, 1989 | Dec 4, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Bracken, J. A. 35 #14 | 3,250 | 46730767 |
| 366336 | Nov 10, 1989 | Nov 10, 1989 | Union Expl. Partners, Ltd. | Houston | Seven J Stock Farm #41H | 10,200 | 22530805 |
| 366165 | Nov 10, 1989 | Nov 10, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Tunnell, A. R. 59 #13 | 2,962 | 46700685 |
| 366164 | Nov 10, 1989 | Nov 10, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Camper, B. W. 110 #1 | 2,979 | 46700634 |
| 366050 | Nov 9, 1989 | Nov 9, 1989 | Union Expl. Partners, Ltd. | Wharton | Lancaster, W. H. #7 | 7,500 | 48133003 |
| 365322 | Nov 8, 1989 | Nov 8, 1989 | Union Expl. Partners, Ltd. | Van Zandt | York, W. A. 13 #9 | 3,050 | 46730761 |
| 365886 | Nov 1, 1989 | Nov 1, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Miller, I.D. 34 #6 | 3,010 | 46700697 |
| 365323 | Oct 18, 1989 | Oct 18, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Swain, W. F. 36 #9 | 1,580 | 46730765 |
| 365323Amendment | Oct 18, 1989 | Oct 18, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Swain, W. F. 36 #9 | 3,230 | 46730765 |
| 365320 | Oct 18, 1989 | Oct 18, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Thompson, I. W. 401 #15 | 3,110 | 46730763 |
| 365319 | Oct 18, 1989 | Oct 18, 1989 | Union Expl. Partners, Ltd. | Van Zandt | White, W. H. 501 #8 | 3,020 | 46730764 |
| 365318 | Oct 18, 1989 | Oct 18, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Jarman, W. T. 37 #19 | 3,070 | 46730762 |
| 365001 | Oct 10, 1989 | Oct 10, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Cvwu #4011E | 2,975 | 46730760 |
| 364999 | Oct 10, 1989 | Oct 10, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Bracken, J.A. 503 #11 | 2,400 | 46730759 |
| 364848 | Oct 6, 1989 | Oct 6, 1989 | Union Expl. Partners, Ltd. | Fort Bend | Byrne, J. & Giese, B. J. #1 | 16,000 | 15731815 |
| 364698 | Oct 3, 1989 | Oct 3, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Howell, D. R. 45 #1 | 2,997 | 46700874 |
| 364429 | Sep 29, 1989 | Sep 29, 1989 | Union Expl. Partners, Ltd. | Madison | J. H. Hyde Gas Unit #2 | 10,800 | 31330308 |
| 361719 | Aug 11, 1989 | Aug 11, 1989 | Union Expl. Partners, Ltd. | Van Zandt | York, W. A. 13 #8 | 3,100 | 46730748 |
| 360325 | Jul 27, 1989 | Jul 27, 1989 | Union Expl. Partners, Ltd. | Jackson | Neibuhr, A.L. #11 | 6,420 | 23932497 |
| 360325Amendment | Jul 27, 1989 | Jul 27, 1989 | Union Expl. Partners, Ltd. | Jackson | Neibuhr, A.L. #11 | 6,420 | 23932497 |
| 361826 | Jul 21, 1989 | Jul 21, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Bracken, J.A. 503 #10 | 3,070 | 46730752 |
| 361826Amendment | Jul 21, 1989 | Jul 21, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Bracken, J.A. 503 #10 | 3,100 | 46730752 |
| 361718 | Jul 19, 1989 | Jul 19, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Shivers, J. R. 12 #11 | 2,950 | 46730749 |
| 361718Amendment | Jul 19, 1989 | Jul 19, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Shivers, J. R. 12 #11 | 2,950 | 46730749 |
| 361717 | Jul 19, 1989 | Jul 19, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Swain, W. F. 36 #8 | 2,420 | 46730750 |
| 361717Amendment | Jul 19, 1989 | Jul 19, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Central Van Woodbine Unit #368 | 2,420 | 46730750 |
| 361716 | Jul 19, 1989 | Jul 19, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Swain, O. L. 11 #17 | 2,940 | 46730751 |
| 361716Amendment | Jul 19, 1989 | Jul 19, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Swain, O. L. 11 #17 | 2,940 | 46730751 |
| 359727 | Jun 28, 1989 | Jun 28, 1989 | Union Expl. Partners, Ltd. | Jackson | Weise, Della #11 | 6,420 | 23932491 |
| 359726 | Jun 26, 1989 | Jun 26, 1989 | Union Expl. Partners, Ltd. | Jackson | Power, James #7 | 6,420 | 23932490 |
| 360549 | Jun 21, 1989 | Jun 21, 1989 | Union Expl. Partners, Ltd. | Madison | Mrs. A. D. Madole Gas Unit #2 | 11,000 | 31330672 |
| 360142 | Jun 9, 1989 | Jun 9, 1989 | Union Expl. Partners, Ltd. | Madison | J. H. Walton Gas Unit #2 | 9,400 | 31330671 |
| 359766 | Jun 1, 1989 | Jun 1, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Cook, W. H. 42 #10 | 3,310 | 46730747 |
| 358635 | May 1, 1989 | May 1, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Bracken, J. A. 35 #13 | 3,150 | 46730741 |
| 358634 | Apr 28, 1989 | Apr 28, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Thompson, J. T. 49 #13 | 3,120 | 46730742 |
| 358633 | Apr 28, 1989 | Apr 28, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Gilbert, H. C. 43 #10 | 3,270 | 46730739 |
| 358632 | Apr 28, 1989 | Apr 28, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Howell, R. A. 44 #8 | 2,500 | 46730740 |
| 358631 | Apr 28, 1989 | Apr 28, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Wells, R. L. 47 #25 | 3,240 | 46730743 |
| 357926 | Apr 24, 1989 | Apr 24, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Taylor, J. T. 33 #6 | 3,330 | 46730736 |
| 358414 | Apr 20, 1989 | Apr 20, 1989 | Union Expl. Partners, Ltd. | Jackson | Cravesn, E. T. #10 | 6,430 | 23932484 |
| 358214 | Apr 14, 1989 | Apr 14, 1989 | Union Expl. Partners, Ltd. | Brazoria | I. P. Farms, Inc. #1 | 15,000 | 03932338 |
| 356651 | Mar 7, 1989 | Mar 7, 1989 | Union Expl. Partners, Ltd. | Van Zandt | White, W. H. 501 #7 | 3,210 | 46730733 |
| 356563 | Mar 3, 1989 | Mar 3, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Thompson, I. W. 401 #13 | 2,970 | 46730731 |
| 356562 | Mar 3, 1989 | Mar 3, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Jarman, W. T. 37 #18 | 3,145 | 46730732 |
| 356393 | Mar 1, 1989 | Mar 1, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Shirley, M. F. 107 #9 | 3,500 | 46730729 |
| 356514 | Feb 28, 1989 | Feb 28, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Shivers, J. R. 12 #10 | 3,120 | 46730730 |
| 356514Amendment | Feb 28, 1989 | Feb 28, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Shivers, J. R. 12 #10 | 3,120 | 46730730 |
| 356370 | Feb 24, 1989 | Feb 24, 1989 | Union Expl. Partners, Ltd. | Van Zandt | York, W. A. 13 #7 | 2,330 | 46730728 |
| 356189 | Feb 21, 1989 | Feb 21, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Tunnell , A. R. 59 #7 | 2,959 | 46700719 |
| 356188 | Feb 21, 1989 | Feb 21, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Gilbert , H. C. 43 #4 | 2,958 | 46700973 |
| 356187 | Feb 21, 1989 | Feb 21, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Howell , D.R. 45 #3 A | 2,911 | 46700877 |
| 355451 | Jan 27, 1989 | Jan 27, 1989 | Union Expl. Partners, Ltd. | Jackson | Hamons, Dan #3 | 6,400 | 23932452 |
| 355451Amendment | Jan 27, 1989 | Jan 27, 1989 | Union Expl. Partners, Ltd. | Jackson | Hamons, Dan #3 | 6,400 | 23932452 |
| 354840 | Jan 6, 1989 | Jan 6, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Central Van Woodbine Unit #4511 | 3,055 | 46730727 |
| 354840Amendment | Jan 6, 1989 | Jan 6, 1989 | Union Expl. Partners, Ltd. | Van Zandt | Central Van Woodbine Unit #4511 | 3,055 | 46730727 |
| 354506 | Dec 22, 1988 | Dec 22, 1988 | Union Expl. Partners, Ltd. | Van Zandt | Dowdle, L. A. 205 #3 | 2,760 | 46730726 |
| 354506Amendment | Dec 22, 1988 | Dec 22, 1988 | Union Expl. Partners, Ltd. | Van Zandt | Dowdle, L. A. 205 #3 | 2,760 | 46730726 |
| 354506Amendment | Dec 22, 1988 | Dec 22, 1988 | Union Expl. Partners, Ltd. | Van Zandt | Dowdle, L. A. 205 #3 | 2,825 | 46730726 |
| 354418 | Dec 21, 1988 | Dec 21, 1988 | Union Expl. Partners, Ltd. | Van Zandt | Tunnell, A. G. 8 #2 | 2,750 | 46700432 |
| 354454 | Dec 19, 1988 | Dec 19, 1988 | Union Expl. Partners, Ltd. | Van Zandt | Cvwu #3021H | 3,100 | 46730724 |
| 353841 | Dec 5, 1988 | Dec 5, 1988 | Union Expl. Partners, Ltd. | Van Zandt | Howell, R. A. 44 #4 | 2,964 | 46700968 |
| 353761 | Dec 2, 1988 | Dec 2, 1988 | Union Expl. Partners, Ltd. | Van Zandt | Crim, R. C. 28 #3 | 2,979 | 46700200 |
| 353762 | Dec 1, 1988 | Dec 1, 1988 | Union Expl. Partners, Ltd. | Van Zandt | White, R. V. 500 #4 | 2,775 | 46780102 |