| 375709 | Jul 20, 1990 | Jul 20, 1990 | American Exploration Company | Sutton | Simmons 73 #3 | 7,500 | 43533654 |
| 375652 | Jul 20, 1990 | Jul 20, 1990 | American Exploration Company | Sutton | Shannon 52 #6 | 7,500 | 43533653 |
| 374868 | Jul 3, 1990 | Jul 3, 1990 | American Exploration Company | Sutton | Kelly 125 #10 | 7,250 | 43533643 |
| 374869 | Jul 2, 1990 | Jul 2, 1990 | American Exploration Company | Sutton | Shurley 140 #1 | 7,500 | 43533644 |
| 374810 | Jun 25, 1990 | Jun 25, 1990 | American Exploration Company | Sutton | Reinhardt 6 #6 | 7,700 | 43533641 |
| 374809 | Jun 25, 1990 | Jun 25, 1990 | American Exploration Company | Sutton | Richardson 138 #8 | 7,700 | 43533640 |
| 374772 | Jun 25, 1990 | Jun 25, 1990 | American Exploration Company | Sutton | Shurley 147 #8 | 7,500 | 43533642 |
| 374542 | Jun 19, 1990 | Jun 19, 1990 | American Exploration Company | McMullen | Discher, H. A. #9 | 10,000 | 31132837 |
| 374528 | Jun 15, 1990 | Jun 15, 1990 | American Exploration Company | Gray | Cook, C. C. #8 | 3,225 | 17983133 |
| 374338 | Jun 14, 1990 | Jun 14, 1990 | American Exploration Company | Sutton | Shurley 98 #6 | 7,000 | 43533635 |
| 374200 | Jun 8, 1990 | Jun 8, 1990 | American Exploration Company | McMullen | Wheeler, Nora #7 | 10,000 | 31132836 |
| 374199 | Jun 8, 1990 | Jun 8, 1990 | American Exploration Company | McMullen | Shenkir #2 | 10,100 | 31132835 |
| 373182 | Jun 4, 1990 | Jun 4, 1990 | American Exploration Company | Howard | Denman, L. C. -B- #18 | 3,200 | 22734553 |
| 373181 | Jun 4, 1990 | Jun 4, 1990 | American Exploration Company | Howard | Denman, L. C. -B- #19 | 3,200 | 22734552 |
| 373180 | Jun 4, 1990 | Jun 4, 1990 | American Exploration Company | Howard | Denman, L. C. -B- #20 | 3,200 | 22734551 |
| 373754 | May 24, 1990 | May 24, 1990 | American Exploration Company | Gray | Combs & Worley "A" #3 | 3,350 | 17907545 |
| 373754Amendment | May 24, 1990 | May 24, 1990 | American Exploration Company | Gray | Combs & Worley "A" #3 | 3,350 | 17907545 |
| 373465 | May 22, 1990 | May 22, 1990 | American Exploration Company | Sutton | Espy 41 #7 | 6,500 | 43533626 |
| 373464 | May 22, 1990 | May 22, 1990 | American Exploration Company | Sutton | Morriss 84 #5 | 7,500 | 43533625 |
| 373463 | May 22, 1990 | May 22, 1990 | American Exploration Company | Sutton | Galbreath 65 #5 | 6,500 | 43533624 |
| 373462 | May 22, 1990 | May 22, 1990 | American Exploration Company | Sutton | Kelly 126 #7 | 7,000 | 43533623 |
| 373041 | May 8, 1990 | May 8, 1990 | American Exploration Company | Sutton | Askew/Glimp 55 #5 | 6,500 | 43533611 |
| 373049 | May 7, 1990 | May 7, 1990 | American Exploration Company | Sutton | Fields 17 #8 | 6,500 | 43533610 |
| 372641 | Apr 30, 1990 | Apr 30, 1990 | American Exploration Company | Andrews | University -DJ- 'A' #6 | 9,400 | 00336731 |
| 372640 | Apr 30, 1990 | Apr 30, 1990 | American Exploration Company | Andrews | University -DJ- 'A' #5 | 9,400 | 00336732 |
| 372608 | Apr 27, 1990 | Apr 27, 1990 | American Exploration Company | Dimmit | Elaine (5100) Unit #94 | 5,300 | 12732873 |
| 372241 | Apr 19, 1990 | Apr 19, 1990 | American Exploration Company | Sutton | Allison 54 #2 | 6,500 | 43533598 |
| 371402 | Mar 28, 1990 | Mar 28, 1990 | American Exploration Company | Sutton | Fields 21 #4 | 6,500 | 43533589 |
| 371400 | Mar 28, 1990 | Mar 28, 1990 | American Exploration Company | Sutton | Fields 20 #6 | 6,500 | 43533587 |
| 371398 | Mar 28, 1990 | Mar 28, 1990 | American Exploration Company | Sutton | Fields 52 #6 | 6,500 | 43533588 |
| 371045 | Mar 20, 1990 | Mar 20, 1990 | American Exploration Company | Sutton | Fields 16 #8 | 6,500 | 43533585 |
| 371044 | Mar 20, 1990 | Mar 20, 1990 | American Exploration Company | Sutton | Vanderstucken 53 #5 | 6,500 | 43533584 |
| 370487 | Mar 7, 1990 | Mar 7, 1990 | American Exploration Company | Sutton | Fields 14 #5 | 6,100 | 43533581 |
| 369737 | Feb 14, 1990 | Feb 14, 1990 | American Exploration Company | Sutton | Pfluger 89 #5 | 5,300 | 43533568 |
| 369736 | Feb 14, 1990 | Feb 14, 1990 | American Exploration Company | Sutton | Hicks 61 #4 | 5,300 | 43533567 |
| 369735 | Feb 14, 1990 | Feb 14, 1990 | American Exploration Company | Sutton | Vanderstucken 82 #4 | 5,900 | 43533566 |
| 369435 | Feb 7, 1990 | Feb 7, 1990 | American Exploration Company | Sutton | Espy 56 #8 | 6,400 | 43533563 |
| 369434 | Feb 7, 1990 | Feb 7, 1990 | American Exploration Company | Sutton | Espy 57 #8 | 6,500 | 43533562 |
| 369433 | Feb 7, 1990 | Feb 7, 1990 | American Exploration Company | Sutton | Espy 32 #6 | 6,400 | 43533561 |
| 369336 | Feb 2, 1990 | Feb 2, 1990 | American Exploration Company | Sutton | Galbreath 91 #6 | 6,500 | 43533559 |
| 369335 | Feb 2, 1990 | Feb 2, 1990 | American Exploration Company | Sutton | Galbreath 78 #5 | 6,700 | 43533560 |
| 368997Amendment | Jan 25, 1990 | Jan 25, 1990 | American Exploration Company | Lavaca | Borchers, Wm. #5 | 1,370 | 28530167 |
| 368850 | Jan 22, 1990 | Jan 22, 1990 | American Exploration Company | Sutton | Kelly 115 #5 | 7,000 | 43533553 |
| 368347 | Jan 11, 1990 | Jan 11, 1990 | American Exploration Company | Sutton | Kelly 102 #6 | 6,800 | 43533548 |
| 368297 | Jan 8, 1990 | Jan 8, 1990 | American Exploration Company | Sutton | Kelly 35 #3 | 7,700 | 43533547 |
| 368226 | Jan 4, 1990 | Jan 4, 1990 | American Exploration Company | Dimmit | Elaine (5100') Unit #93 | 5,300 | 12732837 |
| 367704 | Dec 19, 1989 | Dec 19, 1989 | American Exploration Company | Sutton | Reed 101 #8 | 6,800 | 43533539 |
| 367705 | Dec 18, 1989 | Dec 18, 1989 | American Exploration Company | Sutton | Shurley 142 #8 | 7,300 | 43533538 |
| 367494 | Dec 13, 1989 | Dec 13, 1989 | American Exploration Company | Sutton | Shurley 96 #7 | 6,500 | 43533533 |
| 367493 | Dec 13, 1989 | Dec 13, 1989 | American Exploration Company | Sutton | Fawcett 130 #8 | 7,800 | 43533532 |
| 367069 | Dec 4, 1989 | Dec 4, 1989 | American Exploration Company | Sutton | Shurley 98 #5 | 6,800 | 43533530 |
| 366934 | Dec 4, 1989 | Dec 4, 1989 | American Exploration Company | Sutton | Shurley 95 #6 | 6,600 | 43533529 |
| 364320 | Nov 29, 1989 | Nov 29, 1989 | American Exploration Company | Lipscomb | Peery, Harold #2 | 8,800 | 29520206 |
| 364320Amendment | Nov 29, 1989 | Nov 29, 1989 | American Exploration Company | Lipscomb | Peery, Harold #2 | 7,550 | 29520206 |
| 366507 | Nov 21, 1989 | Nov 21, 1989 | American Exploration Company | Sutton | Bloodworth 139 #6 | 7,900 | 43533523 |
| 365039 | Nov 8, 1989 | Nov 8, 1989 | American Exploration Company | Matgrda IS-LB | State Tract 629-L SW/4 #2 | 5,159 | 70330279 |
| 365769 | Nov 1, 1989 | Nov 1, 1989 | American Exploration Company | Sutton | Mayfield 40 #3 | 7,900 | 43533517 |
| 365767 | Nov 1, 1989 | Nov 1, 1989 | American Exploration Company | Sutton | Mayfield 34 #6 | 7,750 | 43533518 |
| 365156 | Oct 18, 1989 | Oct 18, 1989 | American Exploration Company | Clay | Shoemaker #1 | 6,495 | 07720164 |
| 364804 | Oct 9, 1989 | Oct 9, 1989 | American Exploration Company | Sutton | Bray 42 #3 | 6,350 | 43533509 |
| 364705 | Oct 6, 1989 | Oct 6, 1989 | American Exploration Company | Roberts | Maulsby #24 | 10,600 | 39330808 |
| 364395 | Sep 28, 1989 | Sep 28, 1989 | American Exploration Company | Andrews | University "E" #4 | 12,300 | 00332771 |
| 364309 | Sep 28, 1989 | Sep 28, 1989 | American Exploration Company | Sutton | Fields 17 #7 | 6,600 | 43533506 |
| 364308 | Sep 28, 1989 | Sep 28, 1989 | American Exploration Company | Sutton | Fields 23 #4 | 6,200 | 43533505 |
| 363443 | Sep 14, 1989 | Sep 14, 1989 | American Exploration Company | McMullen | Eliott, R. E. #9 | 10,250 | 31132775 |
| 361722 | Sep 14, 1989 | Sep 14, 1989 | American Exploration Company | Andrews | Cowden, W.F. #2 | 4,284 | 00300196 |
| 363793 | Sep 13, 1989 | Sep 13, 1989 | American Exploration Company | Sutton | Vanderstucken 48 #5 | 6,100 | 43533502 |
| 363792 | Sep 13, 1989 | Sep 13, 1989 | American Exploration Company | Sutton | Vanderstucken 71 #8 | 6,550 | 43533501 |
| 363442 | Sep 8, 1989 | Sep 8, 1989 | American Exploration Company | McMullen | Morales, Felix #14 | 10,200 | 31132774 |
| 363485 | Sep 7, 1989 | Sep 7, 1989 | American Exploration Company | Sutton | Kelly 124 #7 | 7,200 | 43533500 |
| 363444 | Sep 7, 1989 | Sep 7, 1989 | American Exploration Company | McMullen | Henry, A. L. #2 | 10,200 | 31132778 |
| 363453 | Sep 6, 1989 | Sep 6, 1989 | American Exploration Company | McMullen | Wheeler, Nora #5 | 10,200 | 31132777 |
| 363445 | Sep 6, 1989 | Sep 6, 1989 | American Exploration Company | McMullen | Taylor, H. O. #4 | 10,000 | 31132776 |
| 363441 | Sep 6, 1989 | Sep 6, 1989 | American Exploration Company | McMullen | Lange, E. #3 | 10,500 | 31132773 |
| 362036 | Sep 5, 1989 | Sep 5, 1989 | American Exploration Company | Winkler | Brown-Altman -E- a/C 2 #2 | 2,920 | 49502649 |
| 362848 | Sep 1, 1989 | Sep 1, 1989 | American Exploration Company | Sutton | Shurley 36 #4 | 7,400 | 43533493 |
| 363202 | Aug 29, 1989 | Aug 29, 1989 | American Exploration Company | Sutton | Jones 118 #8 | 6,500 | 43533499 |
| 363201 | Aug 28, 1989 | Aug 28, 1989 | American Exploration Company | Sutton | Reed 100 #8 | 6,750 | 43533498 |
| 362983 | Aug 22, 1989 | Aug 22, 1989 | American Exploration Company | Sutton | Shurley 147 #7 | 7,550 | 43533494 |
| 362751 | Aug 17, 1989 | Aug 17, 1989 | American Exploration Company | Sutton | Pfluger 84 #7 | 6,000 | 43533492 |
| 362037 | Aug 14, 1989 | Aug 14, 1989 | American Exploration Company | Winkler | Brown-Altman "E" a/C 1 #6 | 2,950 | 49510229 |
| 362501 | Aug 9, 1989 | Aug 9, 1989 | American Exploration Company | Sutton | Kelly 102 #5 | 7,000 | 43533491 |
| 362288 | Aug 2, 1989 | Aug 2, 1989 | American Exploration Company | Sutton | Kelly 125 #8 | 7,000 | 43533490 |
| 361724 | Jul 31, 1989 | Jul 31, 1989 | American Exploration Company | Clay | Scott, L. -A- #1 | 6,410 | 07702251 |
| 361881 | Jul 26, 1989 | Jul 26, 1989 | American Exploration Company | Sutton | Pfluger 104 #8 | 6,000 | 43533488 |
| 361420 | Jul 14, 1989 | Jul 14, 1989 | American Exploration Company | Sutton | Kelly 126 #6 | 7,000 | 43533486 |
| 361370 | Jul 13, 1989 | Jul 13, 1989 | American Exploration Company | Sutton | Shurley 99 #5 | 7,000 | 43533485 |
| 360908 | Jul 3, 1989 | Jul 3, 1989 | American Exploration Company | Sutton | Shurley 166 #5 | 7,500 | 43533484 |
| 360887 | Jun 30, 1989 | Jun 30, 1989 | American Exploration Company | Webb | Webb County School Land #5 | 7,121 | 47934881 |
| 360886 | Jun 29, 1989 | Jun 29, 1989 | American Exploration Company | Webb | Webb County School Land #6 | 7,300 | 47934882 |
| 360735 | Jun 27, 1989 | Jun 27, 1989 | American Exploration Company | Sutton | Richardson 138 #7 | 7,650 | 43533482 |
| 360400 | Jun 15, 1989 | Jun 15, 1989 | American Exploration Company | Sutton | Mayfield 46 #9 | 7,625 | 43533481 |
| 359843 | Jun 1, 1989 | Jun 1, 1989 | American Exploration Company | Sutton | Vanderstucken 49 #6 | 6,030 | 43533480 |
| 359769 | May 26, 1989 | May 26, 1989 | American Exploration Company | Sutton | Fields 15 #6 | 6,090 | 43533473 |
| 359556 | May 23, 1989 | May 23, 1989 | American Exploration Company | Sutton | Espy 56 #7 | 6,180 | 43533470 |
| 359555 | May 23, 1989 | May 23, 1989 | American Exploration Company | Sutton | Espy 40 #6 | 6,300 | 43533469 |
| 359491 | May 23, 1989 | May 23, 1989 | American Exploration Company | Crockett | Henderson, J. W. #2302 | 9,650 | 10535625 |
| 359490 | May 23, 1989 | May 23, 1989 | American Exploration Company | Crockett | Henderson, R. #2504 | 7,000 | 10535626 |
| 358407 | May 2, 1989 | May 2, 1989 | American Exploration Company | Webb | So. Lopez Unit #2212 | 2,300 | 47935109 |
| 358375 | May 2, 1989 | May 2, 1989 | American Exploration Company | Webb | So. Lopez #2303 | 2,300 | 47935110 |