| 370432 | Mar 5, 1990 | Mar 5, 1990 | Transamerican Natural Gas Corp. | Zapata | La Perla #119 | 10,500 | 50532650 |
| 370431 | Mar 5, 1990 | Mar 5, 1990 | Transamerican Natural Gas Corp. | Zapata | La Perla #114 | 10,200 | 50532649 |
| 370411 | Mar 1, 1990 | Mar 1, 1990 | Transamerican Natural Gas Corp. | Webb | Carr #46 | 9,800 | 47935007 |
| 370314 | Feb 28, 1990 | Feb 28, 1990 | Transamerican Natural Gas Corp. | Zapata | Jennings Ranch "B" #11 | 10,700 | 50532647 |
| 370313 | Feb 28, 1990 | Feb 28, 1990 | Transamerican Natural Gas Corp. | Zapata | La Perla #129 | 10,500 | 50532648 |
| 370126 | Feb 23, 1990 | Feb 23, 1990 | Transamerican Natural Gas Corp. | Zapata | Yzaguirre-Leo G.U. #4 | 11,500 | 50532645 |
| 369913 | Feb 15, 1990 | Feb 15, 1990 | Transamerican Natural Gas Corp. | Webb | Lundell #62 | 10,500 | 47934996 |
| 369640 | Feb 8, 1990 | Feb 8, 1990 | Transamerican Natural Gas Corp. | Zapata | La Perla #117 | 10,300 | 50532643 |
| 369515 | Feb 6, 1990 | Feb 6, 1990 | Transamerican Natural Gas Corp. | Zapata | La Perla #127 | 10,500 | 50532642 |
| 369458 | Feb 5, 1990 | Feb 5, 1990 | Transamerican Natural Gas Corp. | Webb | Lundell #60 | 10,000 | 47934989 |
| 369270 | Jan 30, 1990 | Jan 30, 1990 | Transamerican Natural Gas Corp. | Zapata | La Perla #128 | 10,500 | 50532640 |
| 369145 | Jan 26, 1990 | Jan 26, 1990 | Transamerican Natural Gas Corp. | Zapata | Flores, L. G. #9 | 11,500 | 50532639 |
| 368822 | Jan 19, 1990 | Jan 19, 1990 | Transamerican Natural Gas Corp. | Webb | Carr #50 | 9,600 | 47934977 |
| 368764 | Jan 18, 1990 | Jan 18, 1990 | Transamerican Natural Gas Corp. | Zapata | La Perla #126 | 10,500 | 50532636 |
| 368764Amendment | Jan 18, 1990 | Jan 18, 1990 | Transamerican Natural Gas Corp. | Zapata | La Perla #126 | 10,500 | 50532636 |
| 368711 | Jan 17, 1990 | Jan 17, 1990 | Transamerican Natural Gas Corp. | Webb | Frost National Bank #37 | 8,500 | 47934975 |
| 368403 | Jan 11, 1990 | Jan 11, 1990 | Transamerican Natural Gas Corp. | Zapata | La Perla #125 | 10,500 | 50532635 |
| 368218 | Jan 3, 1990 | Jan 3, 1990 | Transamerican Natural Gas Corp. | Zapata | La Perla #124 | 10,200 | 50532632 |
| 368213 | Jan 3, 1990 | Jan 3, 1990 | Transamerican Natural Gas Corp. | Zapata | La Perla #123 | 10,500 | 50532633 |
| 368013 | Dec 27, 1989 | Dec 27, 1989 | Transamerican Natural Gas Corp. | Zapata | L.F.T. #2 | 11,500 | 50532631 |
| 367846 | Dec 19, 1989 | Dec 19, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla "B" #7 | 10,000 | 50532630 |
| 367102 | Dec 4, 1989 | Dec 4, 1989 | Transamerican Natural Gas Corp. | Webb | B.M.T. #28 | 11,500 | 47934955 |
| 367033 | Dec 4, 1989 | Dec 4, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #122 | 10,400 | 50532624 |
| 367011 | Nov 30, 1989 | Nov 30, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #121 | 10,500 | 50532623 |
| 366634 | Nov 27, 1989 | Nov 27, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #109 | 10,500 | 50532621 |
| 366633 | Nov 21, 1989 | Nov 21, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #108 | 10,500 | 50532620 |
| 366202 | Nov 10, 1989 | Nov 10, 1989 | Transamerican Natural Gas Corp. | Zapata | Emma #1 | 12,000 | 50532619 |
| 365726 | Oct 30, 1989 | Oct 30, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #106 | 10,500 | 50532613 |
| 365619 | Oct 30, 1989 | Oct 30, 1989 | Transamerican Natural Gas Corp. | Webb | Bruni Ranch #22 | 9,400 | 47934938 |
| 365375 | Oct 23, 1989 | Oct 23, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #107 | 10,400 | 50532608 |
| 365374 | Oct 23, 1989 | Oct 23, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #105 | 10,400 | 50532609 |
| 365373 | Oct 20, 1989 | Oct 20, 1989 | Transamerican Natural Gas Corp. | Webb | Hereford #33 | 8,200 | 47934936 |
| 365218 | Oct 19, 1989 | Oct 19, 1989 | Transamerican Natural Gas Corp. | Webb | Carr #49 | 9,900 | 47934931 |
| 365148 | Oct 16, 1989 | Oct 16, 1989 | Transamerican Natural Gas Corp. | Webb | Carr #43 | 9,200 | 47934930 |
| 364866 | Oct 11, 1989 | Oct 11, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #104 | 10,200 | 50532605 |
| 364565 | Oct 3, 1989 | Oct 3, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #103 | 10,000 | 50532602 |
| 364225 | Sep 21, 1989 | Sep 21, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #102 | 10,500 | 50532599 |
| 364017 | Sep 21, 1989 | Sep 21, 1989 | Transamerican Natural Gas Corp. | Zapata | Guerra "L" #11 | 10,700 | 50532597 |
| 364010 | Sep 19, 1989 | Sep 19, 1989 | Transamerican Natural Gas Corp. | Webb | Frost National Bank #36 | 10,900 | 47934914 |
| 364010Amendment | Sep 19, 1989 | Sep 19, 1989 | Transamerican Natural Gas Corp. | Webb | Frost National Bank #36 | 11,100 | 47934914 |
| 364010Amendment | Sep 19, 1989 | Sep 19, 1989 | Transamerican Natural Gas Corp. | Webb | Frost National Bank #36 | 11,100 | 47934914 |
| 363619 | Sep 6, 1989 | Sep 6, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #101 | 10,500 | 50532593 |
| 363619Amendment | Sep 6, 1989 | Sep 6, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #101 | 10,500 | 50532593 |
| 362954 | Aug 22, 1989 | Aug 22, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #100 | 10,400 | 50532589 |
| 362895 | Aug 18, 1989 | Aug 18, 1989 | Transamerican Natural Gas Corp. | Zapata | Haynes #9 | 14,000 | 50532588 |
| 362894 | Aug 18, 1989 | Aug 18, 1989 | Transamerican Natural Gas Corp. | Webb | Carr #48 | 10,000 | 47934903 |
| 362671 | Aug 15, 1989 | Aug 15, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #99 | 10,500 | 50532583 |
| 362577 | Aug 10, 1989 | Aug 10, 1989 | Transamerican Natural Gas Corp. | Zapata | McMurrey #46 | 10,500 | 50532582 |
| 362281 | Aug 2, 1989 | Aug 2, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #98 | 10,500 | 50532581 |
| 361832 | Jul 24, 1989 | Jul 24, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #97 | 10,200 | 50532577 |
| 361771 | Jul 24, 1989 | Jul 24, 1989 | Transamerican Natural Gas Corp. | Zapata | Guerra "L" #10 | 10,500 | 50532576 |
| 361770 | Jul 21, 1989 | Jul 21, 1989 | Transamerican Natural Gas Corp. | Webb | Carr #47 | 10,000 | 47934894 |
| 361260 | Jul 11, 1989 | Jul 11, 1989 | Transamerican Natural Gas Corp. | Zapata | Yzaguirre-Leo G.U. #3 | 11,700 | 50532574 |
| 361133 | Jul 5, 1989 | Jul 5, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #96 | 10,500 | 50532571 |
| 361132 | Jul 5, 1989 | Jul 5, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #95 | 10,000 | 50532572 |
| 360964 | Jun 30, 1989 | Jun 30, 1989 | Transamerican Natural Gas Corp. | Webb | McKendrick, W. H. #13 | 9,000 | 47934883 |
| 360413 | Jun 15, 1989 | Jun 15, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #94 | 10,500 | 50532565 |
| 360369 | Jun 15, 1989 | Jun 15, 1989 | Transamerican Natural Gas Corp. | Webb | Hirsch #5 | 12,300 | 47934872 |
| 360414 | Jun 14, 1989 | Jun 14, 1989 | Transamerican Natural Gas Corp. | Webb | Hirsch "A" #1 | 8,300 | 47934873 |
| 360310 | Jun 13, 1989 | Jun 13, 1989 | Transamerican Natural Gas Corp. | Webb | B.M.T. #27 | 11,500 | 47934871 |
| 360201 | Jun 12, 1989 | Jun 12, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #93 | 10,500 | 50532564 |
| 360071 | Jun 7, 1989 | Jun 7, 1989 | Transamerican Natural Gas Corp. | Zapata | Guerra "L" #9 | 10,500 | 50532562 |
| 359707 | May 26, 1989 | May 26, 1989 | Transamerican Natural Gas Corp. | Zapata | Flores, L. G. #8 | 13,500 | 50532559 |
| 359706 | May 25, 1989 | May 25, 1989 | Transamerican Natural Gas Corp. | Webb | Frost National Bank #35 | 10,500 | 47934864 |
| 359706Amendment | May 25, 1989 | May 25, 1989 | Transamerican Natural Gas Corp. | Webb | Frost National Bank #35 | 11,000 | 47934864 |
| 359416 | May 19, 1989 | May 19, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #92 | 10,500 | 50532558 |
| 359406 | May 19, 1989 | May 19, 1989 | Transamerican Natural Gas Corp. | Webb | McKendrick, W. H. #12 | 8,000 | 47934860 |
| 359181 | May 12, 1989 | May 12, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #91 | 10,000 | 50532556 |
| 359061 | May 10, 1989 | May 10, 1989 | Transamerican Natural Gas Corp. | Webb | Carr #40 | 9,700 | 47934857 |
| 359075 | May 8, 1989 | May 8, 1989 | Transamerican Natural Gas Corp. | Zapata | Bernardo G. U. #4 | 14,000 | 50532554 |
| 358937 | May 4, 1989 | May 4, 1989 | Transamerican Natural Gas Corp. | Zapata | Guerra "L" #8 | 10,700 | 50532552 |
| 358812 | May 3, 1989 | May 3, 1989 | Transamerican Natural Gas Corp. | Webb | Rottersman, L. S. et Al #14 | 11,000 | 47934853 |
| 358700 | May 1, 1989 | May 1, 1989 | Transamerican Natural Gas Corp. | Webb | Lundell #61 | 10,100 | 47934850 |
| 358558 | Apr 26, 1989 | Apr 26, 1989 | Transamerican Natural Gas Corp. | Webb | Carr #42 | 9,000 | 47934847 |
| 358557 | Apr 26, 1989 | Apr 26, 1989 | Transamerican Natural Gas Corp. | Webb | Bruni Ranch #21 | 9,500 | 47934848 |
| 358557Amendment | Apr 26, 1989 | Apr 26, 1989 | Transamerican Natural Gas Corp. | Webb | Bruni Ranch #21 | 10,000 | 47934848 |
| 358583 | Apr 25, 1989 | Apr 25, 1989 | Transamerican Natural Gas Corp. | Zapata | Garza "D" Gas Unit 1 #2 | 14,000 | 50532549 |
| 358374 | Apr 20, 1989 | Apr 20, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla "B" #6 | 10,000 | 50532548 |
| 357634 | Apr 4, 1989 | Apr 4, 1989 | Transamerican Natural Gas Corp. | Zapata | Yzaguirre-Leo GU #2 | 10,700 | 50532546 |
| 357634Amendment | Apr 4, 1989 | Apr 4, 1989 | Transamerican Natural Gas Corp. | Zapata | Yzaguirre-Leo G.U. #2 | 14,000 | 50532546 |
| 357673 | Apr 3, 1989 | Apr 3, 1989 | Transamerican Natural Gas Corp. | Webb | Carr #41 | 9,000 | 47934840 |
| 357498 | Mar 28, 1989 | Mar 28, 1989 | Transamerican Natural Gas Corp. | Zapata | Flores, L.G. #7 | 10,700 | 50532545 |
| 357498Amendment | Mar 28, 1989 | Mar 28, 1989 | Transamerican Natural Gas Corp. | Zapata | Flores, L.G. #7 | 11,700 | 50532545 |
| 357471 | Mar 28, 1989 | Mar 28, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #90 | 10,500 | 50532544 |
| 357287 | Mar 22, 1989 | Mar 22, 1989 | Transamerican Natural Gas Corp. | Zapata | Guerra "L" #7 | 10,500 | 50532542 |
| 357287Amendment | Mar 22, 1989 | Mar 22, 1989 | Transamerican Natural Gas Corp. | Zapata | Guerra "L" #7 | 10,500 | 50532542 |
| 356790 | Mar 10, 1989 | Mar 10, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #89 | 10,500 | 50532537 |
| 356762 | Mar 7, 1989 | Mar 7, 1989 | Transamerican Natural Gas Corp. | Zapata | Garza, L. "B" #2 | 14,000 | 50532536 |
| 356608 | Mar 6, 1989 | Mar 6, 1989 | Transamerican Natural Gas Corp. | Zapata | Garza, L. "B" #1 | 14,000 | 50532535 |
| 356512 | Feb 28, 1989 | Feb 28, 1989 | Transamerican Natural Gas Corp. | Zapata | Guerra "L" #6 | 10,500 | 50532533 |
| 356493 | Feb 27, 1989 | Feb 27, 1989 | Transamerican Natural Gas Corp. | Zapata | Asche #20 | 10,500 | 50532532 |
| 356492 | Feb 27, 1989 | Feb 27, 1989 | Transamerican Natural Gas Corp. | Webb | Hereford #31 | 8,500 | 47934828 |
| 356337 | Feb 24, 1989 | Feb 24, 1989 | Transamerican Natural Gas Corp. | Webb | Lundell #58 | 10,000 | 47934825 |
| 356262 | Feb 22, 1989 | Feb 22, 1989 | Transamerican Natural Gas Corp. | Webb | Martinez, C. #6 | 10,100 | 47934824 |
| 356243 | Feb 22, 1989 | Feb 22, 1989 | Transamerican Natural Gas Corp. | Webb | Frost National Bank #34 | 10,500 | 47934823 |
| 356132 | Feb 16, 1989 | Feb 16, 1989 | Transamerican Natural Gas Corp. | Zapata | Guerra "L" #3 | 10,500 | 50532399 |
| 355814 | Feb 7, 1989 | Feb 7, 1989 | Transamerican Natural Gas Corp. | Webb | Arco Fee #6 | 12,300 | 47934818 |
| 355604 | Jan 27, 1989 | Jan 27, 1989 | Transamerican Natural Gas Corp. | Webb | Carr #37 | 9,200 | 47934814 |
| 355575 | Jan 26, 1989 | Jan 26, 1989 | Transamerican Natural Gas Corp. | Zapata | La Perla #88 | 9,900 | 50532522 |
| 355449 | Jan 23, 1989 | Jan 23, 1989 | Transamerican Natural Gas Corp. | Webb | Carr #39 | 9,200 | 47934810 |