| 151870 | Feb 25, 1982 | Feb 25, 1982 | Zenith Exploration Co., Inc. | Fort Bend | Seale, R.A. #4 | 7,863 | 15731309 |
| 145318 | Dec 3, 1981 | Dec 3, 1981 | Zenith Exploration Co., Inc. | Frio | Orndoff-Barnes #1 | 7,350 | 16332106 |
| 142583 | Nov 16, 1981 | Nov 16, 1981 | Zenith Exploration Co., Inc. | Frio | Orndoff, James #07307 #2 | 7,500 | 16332040 |
| 140101 | Oct 28, 1981 | Oct 28, 1981 | Zenith Exploration Co., Inc. | Frio | Wright, May S. #1 | 7,500 | 16332073 |
| 140541 | Oct 20, 1981 | Oct 20, 1981 | Zenith Exploration Co., Inc. | Gonzales | Cook, L.D. #1 | 5,983 | 17731147 |
| 137119 | Oct 15, 1981 | Oct 15, 1981 | Zenith Exploration Co., Inc. | Frio | Harper "B" #1 | 7,500 | 16332063 |
| 136703 | Oct 5, 1981 | Oct 5, 1981 | Zenith Exploration Co., Inc. | Frio | Good"a" #1 | 7,500 | 16332058 |
| 136701 | Oct 5, 1981 | Oct 5, 1981 | Zenith Exploration Co., Inc. | Frio | Good #1 | 7,500 | 16332057 |
| 134542 | Sep 25, 1981 | Sep 25, 1981 | Zenith Exploration Co., Inc. | Frio | Harper "A" #1 | 7,500 | 16332048 |
| 131518 | Aug 28, 1981 | Aug 28, 1981 | Zenith Exploration Co., Inc. | Frio | Harper, Mary #1 | 7,500 | 16332056 |
| 130658 | Aug 17, 1981 | Aug 17, 1981 | Zenith Exploration Co., Inc. | Frio | Ayala, Arturo #1 | 7,500 | 16332032 |
| 130430 | Aug 17, 1981 | Aug 17, 1981 | Zenith Exploration Co., Inc. | Frio | Ayala, Arturo #1 | 7,500 | 16332032 |
| 127410 | Jul 23, 1981 | Jul 23, 1981 | Zenith Exploration Co., Inc. | Frio | Orndoff, James #1 | 7,200 | 16332026 |
| 121208 | Jun 16, 1981 | Jun 16, 1981 | Zenith Exploration Co., Inc. | Matagorda | Bussel, Eunice T. et Al #1 | 9,000 | 32131123 |
| 114783 | Apr 10, 1981 | Apr 10, 1981 | Zenith Exploration Co., Inc. | Kent | Baldridge et Al #1-50 | 7,500 | 26330770 |
| 111783 | Mar 11, 1981 | Mar 11, 1981 | Zenith Exploration Co., Inc. | Garza | Kennedy, Eva Mae et Al #1A | 8,200 | 16931470 |
| 108090 | Feb 11, 1981 | Feb 11, 1981 | Zenith Exploration Co., Inc. | Frio | Berry, Esther #6 | 3,500 | 16331850 |
| 107905 | Feb 9, 1981 | Feb 9, 1981 | Zenith Exploration Co., Inc. | Garza | Kennedy, Eva Mae Etal #1 | 2,521 | 16931434 |
| 101962 | Dec 12, 1980 | Dec 12, 1980 | Zenith Exploration Co., Inc. | Frio | Berry, Esther #7 | 3,500 | 16331891 |
| 100728 | Dec 3, 1980 | Dec 3, 1980 | Zenith Exploration Co., Inc. | Taylor | McLean, R. C., et Al #2 | 5,600 | 44131765 |
| 99165 | Nov 14, 1980 | Nov 14, 1980 | Zenith Exploration Co., Inc. | Taylor | Tipton, L. S. et Al #1 | 4,922 | 44131751 |
| 99164 | Nov 14, 1980 | Nov 14, 1980 | Zenith Exploration Co., Inc. | Taylor | Jacobs, J. C. #2 | 5,300 | 44131750 |
| 99163 | Nov 14, 1980 | Nov 14, 1980 | Zenith Exploration Co., Inc. | Taylor | Sealy Smith Foundation, Tract 9 #1 | 5,300 | 44131749 |
| 99162 | Nov 14, 1980 | Nov 14, 1980 | Zenith Exploration Co., Inc. | Taylor | Sealy Smith Foundation Tract 1 #1 | 5,300 | 44131748 |
| 99161 | Nov 14, 1980 | Nov 14, 1980 | Zenith Exploration Co., Inc. | Taylor | Sandusky, J. D. #2 | 2,650 | 44131747 |
| 99160 | Nov 14, 1980 | Nov 14, 1980 | Zenith Exploration Co., Inc. | Taylor | Simmons, Hardin #1 | 5,719 | 44131746 |
| 95424 | Oct 10, 1980 | Oct 10, 1980 | Zenith Exploration Co., Inc. | Kent | Wallace, Bilby "A" #1-52 | 7,505 | 26330717 |
| 95422 | Oct 10, 1980 | Oct 10, 1980 | Zenith Exploration Co., Inc. | Kent | Wallace, Bilby #1-49 | 7,500 | 26330716 |
| 94811 | Oct 6, 1980 | Oct 6, 1980 | Zenith Exploration Co., Inc. | Frio | Berry, Esther -B- #1 | 3,500 | 16331852 |
| 94809 | Oct 6, 1980 | Oct 6, 1980 | Zenith Exploration Co., Inc. | Frio | Berry, Esther -B- #2 | 3,550 | 16331851 |
| 94808 | Oct 6, 1980 | Oct 6, 1980 | Zenith Exploration Co., Inc. | Frio | Berry, Esther #6 | 3,500 | 16331850 |
| 94807 | Oct 6, 1980 | Oct 6, 1980 | Zenith Exploration Co., Inc. | Frio | Berry, Esther #5 | 3,500 | 16331849 |
| 94796 | Oct 6, 1980 | Oct 6, 1980 | Zenith Exploration Co., Inc. | Jones | Stanley, V. #1 | 5,600 | 25331641 |
| 94447 | Oct 2, 1980 | Oct 2, 1980 | Zenith Exploration Co., Inc. | Taylor | Gilmore, L. G. #1 | 5,500 | 44131703 |
| 94446 | Oct 2, 1980 | Oct 2, 1980 | Zenith Exploration Co., Inc. | Jones | Mayfield, M. #1 | 4,700 | 25331636 |
| 94445 | Oct 2, 1980 | Oct 2, 1980 | Zenith Exploration Co., Inc. | Taylor | Baze, W. E. #1B | 3,200 | 44131702 |
| 81616 | May 20, 1980 | May 20, 1980 | Zenith Exploration Co., Inc. | Taylor | Murphree, A. H. et Al #1 | 5,590 | 44131610 |
| 78456 | Apr 16, 1980 | Apr 16, 1980 | Zenith Exploration Co., Inc. | Frio | Berry, Esther #4 | 4,000 | 16331771 |
| 77842 | Apr 10, 1980 | Apr 10, 1980 | Zenith Exploration Co., Inc. | Taylor | McLean, R. C. et Al #1 | 5,600 | 44131580 |
| 71797 | Feb 5, 1980 | Feb 5, 1980 | Zenith Exploration Co., Inc. | Taylor | Sandusky, J. D. #2 | 2,825 | 44103106 |
| 68586 | Jan 4, 1980 | Jan 4, 1980 | Zenith Exploration Co., Inc. | Runnels | Stubblefield, R. F. #2 | 5,000 | 39931495 |
| 68583 | Jan 4, 1980 | Jan 4, 1980 | Zenith Exploration Co., Inc. | Runnels | Stubblefield, R. F. #3 | 5,000 | 39931494 |
| 68534 | Jan 4, 1980 | Jan 4, 1980 | Zenith Exploration Co., Inc. | Liberty | Gulf Crown Central Fee #2 | 5,500 | 29131336 |
| 68531 | Jan 4, 1980 | Jan 4, 1980 | Zenith Exploration Co., Inc. | Liberty | Getty Fee #1 | 5,500 | 29131335 |
| 68441 | Dec 31, 1979 | Dec 31, 1979 | Zenith Exploration Co., Inc. | Taylor | Sealy Smith Foundation Tr. 15 #2 | 2,865 | 44181701 |
| 68439 | Dec 31, 1979 | Dec 31, 1979 | Zenith Exploration Co., Inc. | Taylor | Sealy Smith Foundation Tr. 15 #3 | 2,836 | 44181700 |
| 68437 | Dec 31, 1979 | Dec 31, 1979 | Zenith Exploration Co., Inc. | Taylor | Tipton, J. W. et Al #2 | 2,800 | 44131567 |
| 68435 | Dec 31, 1979 | Dec 31, 1979 | Zenith Exploration Co., Inc. | Taylor | Tipton, J. W. et Al #3 | 2,800 | 44131566 |
| 68287 | Dec 31, 1979 | Dec 31, 1979 | Zenith Exploration Co., Inc. | Taylor | Jacobs, J. C. #2 | 5,300 | 44131750 |
| 68286 | Dec 31, 1979 | Dec 31, 1979 | Zenith Exploration Co., Inc. | Taylor | Richards, F. S. #1 | 5,500 | 44131533 |
| 67863 | Dec 28, 1979 | Dec 28, 1979 | Zenith Exploration Co., Inc. | Liberty | Gulf Crown Central Fee #1 | 5,900 | 29131330 |
| 67742 | Dec 28, 1979 | Dec 28, 1979 | Zenith Exploration Co., Inc. | Taylor | Henson, N. O. #1 | 5,460 | 44100121 |
| 67706 | Dec 28, 1979 | Dec 28, 1979 | Zenith Exploration Co., Inc. | Taylor | Jackson, Senie A. #2 | 5,700 | 44131525 |
| 65331 | Dec 3, 1979 | Dec 3, 1979 | Zenith Exploration Co., Inc. | Taylor | Sealy Smith Foundation Tr. 15 #1 | 3,200 | 44131509 |
| 64735 | Nov 28, 1979 | Nov 28, 1979 | Zenith Exploration Co., Inc. | Runnels | Stubblefield, R. F. #1 | 5,000 | 39931466 |
| 64535 | Nov 26, 1979 | Nov 26, 1979 | Zenith Exploration Co., Inc. | Taylor | Price, P. #1 | 2,800 | 44131565 |
| 64531 | Nov 26, 1979 | Nov 26, 1979 | Zenith Exploration Co., Inc. | Taylor | Price, P. #2 | 2,800 | 44131564 |
| 64530 | Nov 26, 1979 | Nov 26, 1979 | Zenith Exploration Co., Inc. | Taylor | Price, P. #3 | 2,818 | 44103881 |
| 64496 | Nov 21, 1979 | Nov 21, 1979 | Zenith Exploration Co., Inc. | Taylor | Smith, Mrs. M. B. #1 | 3,112 | 44131503 |
| 63416 | Nov 12, 1979 | Nov 12, 1979 | Zenith Exploration Co., Inc. | Taylor | Baze, W. E. #1 | 3,200 | 44131491 |
| 63414 | Nov 12, 1979 | Nov 12, 1979 | Zenith Exploration Co., Inc. | Taylor | Jackson, Senie A. #1 | 5,500 | 44131490 |
| 63391 | Nov 9, 1979 | Nov 9, 1979 | Zenith Exploration Co., Inc. | Taylor | Tipton, J. W. et Al #1 | 2,876 | 44181688 |
| 63389 | Nov 9, 1979 | Nov 9, 1979 | Zenith Exploration Co., Inc. | Taylor | Jacobs, J. C. #1 | 5,300 | 44101738 |
| 56706 | Aug 29, 1979 | Aug 29, 1979 | Zenith Exploration Co., Inc. | Taylor | Reidenbach, Enos #1A | 3,200 | 44131441 |
| 56524 | Aug 24, 1979 | Aug 24, 1979 | Zenith Exploration Co., Inc. | Taylor | Sandusky, J. D. #1 | 2,875 | 44131455 |
| 55732 | Aug 15, 1979 | Aug 15, 1979 | Zenith Exploration Co., Inc. | Taylor | Reidenbach, Enos #2 | 2,757 | 44181591 |
| 55731 | Aug 15, 1979 | Aug 15, 1979 | Zenith Exploration Co., Inc. | Taylor | Reidenbach, Enos #3 | 3,000 | 44181683 |
| 55730 | Aug 15, 1979 | Aug 15, 1979 | Zenith Exploration Co., Inc. | Taylor | Reidenbach, Enos #4 | 3,000 | 44181682 |
| 52927 | Jul 16, 1979 | Jul 16, 1979 | Zenith Exploration Co., Inc. | Taylor | Reidenbach, Enos #1 | 2,800 | 44181678 |
| 52924 | Jul 16, 1979 | Jul 16, 1979 | Zenith Exploration Co., Inc. | Anderson | Johnston, Hoyt #1 | 5,600 | 00130914 |
| 51886 | Jun 29, 1979 | Jun 29, 1979 | Zenith Exploration Co., Inc. | Frio | Berry, Esther #3 | 3,600 | 16331694 |
| 46482 | Apr 16, 1979 | Apr 16, 1979 | Zenith Exploration Co., Inc. | Fort Bend | Seale, R. A., Jr., Trustee #2 | 8,900 | 15730923 |
| 42891 | Feb 21, 1979 | Feb 21, 1979 | Zenith Exploration Co., Inc. | Fort Bend | Foster Farms #1 | 7,831 | 15730967 |
| 41132 | Jan 19, 1979 | Jan 19, 1979 | Zenith Exploration Co., Inc. | Fort Bend | Wornat, Albert #1 | 9,100 | 15730962 |
| 40250 | Jan 5, 1979 | Jan 5, 1979 | Zenith Exploration Co., Inc. | San Patricio | Lovett, Thomas P. #1 | 6,012 | 40931303 |
| 39976 | Jan 2, 1979 | Jan 2, 1979 | Zenith Exploration Co., Inc. | Jefferson | Doyle, K. #1 | 7,848 | 24531284 |
| 38697 | Dec 12, 1978 | Dec 12, 1978 | Zenith Exploration Co., Inc. | Frio | Berry, Esther #2 | 3,600 | 16331671 |
| 30033 | Aug 7, 1978 | Aug 7, 1978 | Zenith Exploration Co., Inc. | Fort Bend | Seale, R. A., Jr. Trustee #3 | 8,900 | 15730924 |
| 30030 | Aug 7, 1978 | Aug 7, 1978 | Zenith Exploration Co., Inc. | Fort Bend | Seale, R. A., Jr. Trustee #2 | 8,900 | 15730923 |
| 13593 | Dec 8, 1977 | Dec 8, 1977 | Zenith Exploration Co., Inc. | Frio | Berry, Esther #2 | 3,450 | 16331564 |
| 13592 | Dec 8, 1977 | Dec 8, 1977 | Zenith Exploration Co., Inc. | Frio | Berry, Esther #3 | 3,450 | 16331563 |