| 507491 | Apr 10, 2001 | Apr 10, 2001 | Amoco Production Company | Brown #10 | 3,500 | 34132752 |
| 507511 | Apr 6, 2001 | Apr 6, 2001 | Chesapeake Operating, Inc. | Coon, R. S. #M 36 | 3,950 | 34132750 |
| 505752 | Feb 28, 2001 | Feb 28, 2001 | Amoco Production Company | McDade #7306 | 3,600 | 34132748 |
| 505751 | Feb 28, 2001 | Feb 28, 2001 | Amoco Production Company | Rubert #3191 | 3,600 | 34132749 |
| 505751Amendment | Feb 28, 2001 | Feb 28, 2001 | Amoco Production Company | Rubert #3191 | 3,600 | 34132749 |
| 505553 | Feb 27, 2001 | Feb 27, 2001 | Amoco Production Company | Hardwick #3242 | 3,500 | 34132747 |
| 505553Amendment | Feb 27, 2001 | Feb 27, 2001 | Amoco Production Company | Hardwick #3242 | 3,500 | 34132747 |
| 505138 | Feb 14, 2001 | Feb 14, 2001 | Amoco Production Company | Davidson #2 | 3,600 | 34132746 |
| 503197 | Jan 2, 2001 | Jan 2, 2001 | Amoco Production Company | Flores #39 | 2,350 | 34132742 |
| 501887 | Dec 27, 2000 | Dec 27, 2000 | Luxor Oil & Gas, Inc. | Kelly #5 | 2,300 | 34132735 |
| 503385 | Dec 22, 2000 | Dec 22, 2000 | Chesapeake Operating, Inc. | Coon, R. S. #M 35 | 3,950 | 34132744 |
| 503384 | Dec 22, 2000 | Dec 22, 2000 | Chesapeake Operating, Inc. | Coon, R. S. #1055 | 3,950 | 34132745 |
| 503176 | Dec 20, 2000 | Dec 20, 2000 | Amoco Production Company | McDade #6 | 3,300 | 34132743 |
| 503176Amendment | Dec 20, 2000 | Dec 20, 2000 | Amoco Production Company | McDade #6 | 3,600 | 34132743 |
| 503162 | Dec 20, 2000 | Dec 20, 2000 | Pioneer Natural Res. USA, Inc. | Sneed #A 9H | 3,300 | 34100299 |
| 502837 | Dec 18, 2000 | Dec 18, 2000 | Amoco Production Company | Brown #9 | 3,300 | 34132741 |
| 502837Amendment | Dec 18, 2000 | Dec 18, 2000 | Amoco Production Company | Brown #9 | 3,700 | 34132741 |
| 502839 | Dec 12, 2000 | Dec 12, 2000 | Amoco Production Company | Phillips, Kathleen "A" #3 | 3,400 | 34132740 |
| 502838 | Dec 12, 2000 | Dec 12, 2000 | Amoco Production Company | Robertson "C" #9 | 2,350 | 34132739 |
| 502620 | Dec 5, 2000 | Dec 5, 2000 | Pioneer Natural Res. USA, Inc. | Masterson #A 12H | 3,100 | 34100520 |
| 502339 | Nov 29, 2000 | Nov 29, 2000 | Questa Energy Corporation | Vaughan Farms #1243 | 3,550 | 34132738 |
| 502206 | Nov 20, 2000 | Nov 20, 2000 | Gould Oil Inc. | Masterson #7608 | 2,350 | 34132736 |
| 502205 | Nov 20, 2000 | Nov 20, 2000 | Gould Oil Inc. | Masterson #7413 | 2,350 | 34132737 |
| 500351 | Nov 14, 2000 | Nov 14, 2000 | Momentum Operating Co., Inc. | Dunne, G. M. #6 | 3,700 | 34131933 |
| 501678 | Nov 7, 2000 | Nov 7, 2000 | Chesapeake Operating, Inc. | Coon, R. S. #34 | 3,950 | 34132734 |
| 501678Amendment | Nov 7, 2000 | Nov 7, 2000 | Chesapeake Operating, Inc. | Coon, R. S. #34 | 3,950 | 34132734 |
| 500261 | Nov 2, 2000 | Nov 2, 2000 | Anadarko Petroleum Corp. | Sneed B #2404R | 2,110 | 34132730 |
| 500228 | Nov 2, 2000 | Nov 2, 2000 | Anadarko Petroleum Corp. | Sneed B #2002R | 2,100 | 34132729 |
| 500152 | Nov 2, 2000 | Nov 2, 2000 | Anadarko Petroleum Corp. | Sneed B #1901R | 2,130 | 34132728 |
| 499497 | Oct 28, 2000 | Oct 28, 2000 | Chesapeake Operating, Inc. | Thompson #2 | 2,300 | 34132724 |
| 500305 | Oct 4, 2000 | Oct 4, 2000 | Anadarko Petroleum Corp. | Sneed "C" #3049R | 2,075 | 34132720 |
| 500254 | Oct 4, 2000 | Oct 4, 2000 | Anadarko Petroleum Corp. | Sneed "C" #1650R | 2,150 | 34132732 |
| 500252 | Oct 4, 2000 | Oct 4, 2000 | Anadarko Petroleum Corp. | Sneed "C" #1550R | 2,150 | 34132731 |
| 500250 | Oct 4, 2000 | Oct 4, 2000 | Anadarko Petroleum Corp. | Brown "A" #1164R | 2,350 | 34132733 |
| 499609 | Sep 20, 2000 | Sep 20, 2000 | W.B.D. Oil and Gas Inc. | Reser #12R | 3,500 | 34132726 |
| 499608 | Sep 20, 2000 | Sep 20, 2000 | W.B.D. Oil and Gas Inc. | Reser #13R | 3,500 | 34132725 |
| 499777 | Sep 19, 2000 | Sep 19, 2000 | Phillips Petroleum Company | Jester A #1R | 3,700 | 34132727 |
| 499621 | Sep 15, 2000 | Sep 15, 2000 | Pioneer Natural Res. USA, Inc. | Read #A 6H | 3,100 | 34100455 |
| 499465 | Sep 14, 2000 | Sep 14, 2000 | Amoco Production Company | Flores #29 | 3,050 | 34131901 |
| 499329 | Sep 13, 2000 | Sep 13, 2000 | Amoco Production Company | Flores #37H | 2,640 | 34132527 |
| 498421 | Sep 13, 2000 | Sep 13, 2000 | Taylor, Gordon Oil Company, LP | Ricky #5 | 5,024 | 34130767 |
| 499229 | Sep 6, 2000 | Sep 6, 2000 | Pioneer Natural Res. USA, Inc. | Bivins #A194H | 3,600 | 34132327 |
| 498740 | Aug 23, 2000 | Aug 23, 2000 | Phillips Petroleum Company | Stallwitz, G. #1R | 3,550 | 34132723 |
| 497990 | Aug 14, 2000 | Aug 14, 2000 | Phillips Petroleum Company | Rubin #4R | 3,300 | 34132721 |
| 498100 | Aug 7, 2000 | Aug 7, 2000 | Phillips Petroleum Company | Rubin #1R | 3,300 | 34132722 |
| 497595 | Jul 25, 2000 | Jul 25, 2000 | Anadarko Petroleum Corp. | Sneed "C" #3049R | 2,075 | 34132720 |
| 497258 | Jul 17, 2000 | Jul 17, 2000 | Anadarko Petroleum Corp. | Brent #7023R | 2,330 | 34132719 |
| 497222 | Jul 17, 2000 | Jul 17, 2000 | Pioneer Natural Res. USA, Inc. | Fee #A 4H | 3,200 | 34100654 |
| 497139 | Jul 13, 2000 | Jul 13, 2000 | Pioneer Natural Res. USA, Inc. | Thompson #C 1H | 3,500 | 34100115 |
| 497136 | Jul 13, 2000 | Jul 13, 2000 | Pioneer Natural Res. USA, Inc. | Thompson #B 11H | 3,500 | 34101582 |
| 495433 | Jul 5, 2000 | Jul 5, 2000 | Amoco Production Company | Anderson - Reeves #2 | 3,600 | 34132707 |
| 496762 | Jun 30, 2000 | Jun 30, 2000 | Anadarko Petroleum Corp. | Sneed "C" #1350R | 2,100 | 34132718 |
| 496762Amendment | Jun 30, 2000 | Jun 30, 2000 | Anadarko Petroleum Corp. | Sneed "C" #1350R | 2,100 | 34132718 |
| 496761 | Jun 30, 2000 | Jun 30, 2000 | Anadarko Petroleum Corp. | Sneed #4012R | 2,150 | 34132716 |
| 496761Amendment | Jun 30, 2000 | Jun 30, 2000 | Anadarko Petroleum Corp. | Sneed #4012R | 2,150 | 34132716 |
| 496760 | Jun 30, 2000 | Jun 30, 2000 | Anadarko Petroleum Corp. | Sneed "A" #1450R | 2,220 | 34132717 |
| 496705 | Jun 29, 2000 | Jun 29, 2000 | Lyco Energy Corporation | Donelson, A. J. B #3 | 3,300 | 34132715 |
| 496495 | Jun 26, 2000 | Jun 26, 2000 | Pioneer Natural Res. USA, Inc. | Masterson #A 11H | 3,400 | 34100340 |
| 496507 | Jun 23, 2000 | Jun 23, 2000 | Anadarko Petroleum Corp. | Sneed "C" #6050R | 3,570 | 34132481 |
| 496506 | Jun 23, 2000 | Jun 23, 2000 | Anadarko Petroleum Corp. | Sneed "A" #1150R | 2,100 | 34132714 |
| 496505 | Jun 23, 2000 | Jun 23, 2000 | Anadarko Petroleum Corp. | Sneed "C" #1250R | 2,130 | 34132713 |
| 495913 | Jun 8, 2000 | Jun 8, 2000 | Pioneer Natural Res. USA, Inc. | Masterson #A 45H | 3,200 | 34132528 |
| 495922 | Jun 7, 2000 | Jun 7, 2000 | Anadarko Petroleum Corp. | Thompson #7063R | 2,400 | 34132712 |
| 495921 | Jun 7, 2000 | Jun 7, 2000 | Anadarko Petroleum Corp. | Thompson #8063R | 2,400 | 34132711 |
| 495920 | Jun 7, 2000 | Jun 7, 2000 | Anadarko Petroleum Corp. | Thompson #9063R | 2,400 | 34132710 |
| 495919 | Jun 7, 2000 | Jun 7, 2000 | Anadarko Petroleum Corp. | Thompson #1163R | 2,400 | 34132709 |
| 495899 | Jun 6, 2000 | Jun 6, 2000 | Anadarko Petroleum Corp. | Thompson #6063R | 2,400 | 34132708 |
| 495498 | May 26, 2000 | May 26, 2000 | Chesapeake Operating, Inc. | Sneed Estate #3505 | 3,950 | 34132706 |
| 495498Amendment | May 26, 2000 | May 26, 2000 | Chesapeake Operating, Inc. | Sneed Estate #3505 | 3,950 | 34132706 |
| 495497 | May 26, 2000 | May 26, 2000 | Chesapeake Operating, Inc. | Sneed Estate #3504 | 3,950 | 34132705 |
| 495497Amendment | May 26, 2000 | May 26, 2000 | Chesapeake Operating, Inc. | Sneed Estate B #3504 | 3,950 | 34132705 |
| 495495 | May 26, 2000 | May 26, 2000 | Chesapeake Operating, Inc. | Sneed Estate #3503 | 3,950 | 34132704 |
| 495495Amendment | May 26, 2000 | May 26, 2000 | Chesapeake Operating, Inc. | Sneed Estate B #3503 | 3,950 | 34132704 |
| 495494 | May 26, 2000 | May 26, 2000 | Chesapeake Operating, Inc. | Sneed Estate #3502 | 3,950 | 34132703 |
| 495494Amendment | May 26, 2000 | May 26, 2000 | Chesapeake Operating, Inc. | Sneed Estate B #3502 | 3,950 | 34132703 |
| 495049 | May 22, 2000 | May 22, 2000 | Amoco Production Company | Wiseman, Sarah #2023 | 3,300 | 34132702 |
| 495005 | May 16, 2000 | May 16, 2000 | Amoco Production Company | Witherbee #3 | 3,250 | 34132701 |
| 494998 | May 15, 2000 | May 15, 2000 | Pioneer Natural Res. USA, Inc. | Masterson #M4H | 3,300 | 34100591 |
| 494950 | May 15, 2000 | May 15, 2000 | Amoco Production Company | Coffee "I" #3 | 3,300 | 34132700 |
| 494988 | May 12, 2000 | May 12, 2000 | W.B.D. Oil and Gas Inc. | Miller, Edith #3 | 3,700 | 34131937 |
| 494578 | May 2, 2000 | May 2, 2000 | Pioneer Natural Res. USA, Inc. | Masterson #M 7H | 3,300 | 34132516 |
| 494430 | Apr 25, 2000 | Apr 25, 2000 | Chesapeake Operating, Inc. | Sneed Estate #1905 | 3,950 | 34132699 |
| 494430Amendment | Apr 25, 2000 | Apr 25, 2000 | Chesapeake Operating, Inc. | Sneed Estate #1905 | 3,950 | 34132699 |
| 494430Amendment | Apr 25, 2000 | Apr 25, 2000 | Chesapeake Operating, Inc. | Sneed Estate #1905 | 3,950 | 34132699 |
| 494430Amendment | Apr 25, 2000 | Apr 25, 2000 | Chesapeake Operating, Inc. | Sneed Estate #1905 | 3,950 | 34132699 |
| 494429 | Apr 25, 2000 | Apr 25, 2000 | Chesapeake Operating, Inc. | Sneed Estate #1904 | 3,950 | 34132696 |
| 494429Amendment | Apr 25, 2000 | Apr 25, 2000 | Chesapeake Operating, Inc. | Sneed Estate #1904 | 3,950 | 34132696 |
| 494428 | Apr 25, 2000 | Apr 25, 2000 | Chesapeake Operating, Inc. | Sneed Estate #1903 | 3,950 | 34132697 |
| 494428Amendment | Apr 25, 2000 | Apr 25, 2000 | Chesapeake Operating, Inc. | Sneed Estate #1903 | 3,950 | 34132697 |
| 494427 | Apr 25, 2000 | Apr 25, 2000 | Chesapeake Operating, Inc. | Sneed Estate #1902 | 3,950 | 34132698 |
| 494427Amendment | Apr 25, 2000 | Apr 25, 2000 | Chesapeake Operating, Inc. | Sneed Estate #1902 | 3,950 | 34132698 |
| 494173 | Apr 18, 2000 | Apr 18, 2000 | Pioneer Natural Res. USA, Inc. | Masterson #A 31H | 3,500 | 34100746 |
| 494094 | Apr 17, 2000 | Apr 17, 2000 | Pioneer Natural Res. USA, Inc. | Masterson #M 6H | 3,200 | 34132320 |
| 492761 | Apr 7, 2000 | Apr 7, 2000 | Anadarko Petroleum Corp. | Thompson #4063R | 2,400 | 34132692 |
| 492760 | Apr 7, 2000 | Apr 7, 2000 | Anadarko Petroleum Corp. | Thompson #5063R | 2,400 | 34132691 |
| 492759 | Apr 7, 2000 | Apr 7, 2000 | Anadarko Petroleum Corp. | Thompson #3063R | 2,400 | 34132690 |
| 493785 | Apr 5, 2000 | Apr 5, 2000 | Gould Oil Inc. | Masterson #7607 | 2,350 | 34132695 |
| 492669 | Mar 30, 2000 | Mar 30, 2000 | Anadarko Petroleum Corp. | Brent #5023R | 2,400 | 34132689 |
| 492668 | Mar 30, 2000 | Mar 30, 2000 | Anadarko Petroleum Corp. | Brent #6023R | 2,400 | 34132688 |
| 493592 | Mar 29, 2000 | Mar 29, 2000 | Anadarko Petroleum Corp. | Brent #123A | 3,340 | 34132694 |