| 487108 | Sep 27, 1999 | Sep 27, 1999 | Strat Land Exploration Company | Nicole #1173 | 12,400 | 29532510 |
| 487107 | Sep 27, 1999 | Sep 27, 1999 | Strat Land Exploration Company | Tyler #1174 | 12,400 | 29532512 |
| 487106 | Sep 27, 1999 | Sep 27, 1999 | Strat Land Exploration Company | Cindy #192 | 12,450 | 29532514 |
| 487369 | Sep 8, 1999 | Sep 8, 1999 | Manti Operating Company | Piper, Ola P. #6321 | 11,000 | 29532513 |
| 486942 | Aug 25, 1999 | Aug 25, 1999 | Manti Operating Company | Piper, Ola O. #7771 | 11,000 | 29532509 |
| 486124 | Jul 26, 1999 | Jul 26, 1999 | Crescendo Resources, L.P. | Yeaton #7947 | 11,200 | 29532507 |
| 486132 | Jul 23, 1999 | Jul 23, 1999 | Alpar Resources, Inc. | Hanshu -859- #1A | 11,900 | 29532506 |
| 485958 | Jul 21, 1999 | Jul 21, 1999 | Crescendo Resources, L.P. | Hamker, Wallace N. "B" #3 | 7,372 | 29532342 |
| 485709 | Jul 13, 1999 | Jul 13, 1999 | Crescendo Resources, L.P. | Wright, May M. "D" #2102 | 11,400 | 29532503 |
| 485771 | Jul 12, 1999 | Jul 12, 1999 | Apache Corporation | Cates #1 | 9,200 | 29532505 |
| 485747 | Jul 12, 1999 | Jul 12, 1999 | Crescendo Resources, L.P. | Duke, C. T. #2903 | 11,200 | 29532504 |
| 485045 | Jun 28, 1999 | Jun 28, 1999 | Crescendo Resources, L.P. | Barton Trust #2379 | 8,100 | 29532498 |
| 485203 | Jun 24, 1999 | Jun 24, 1999 | Strat Land Exploration Company | Chrisman #1 | 12,200 | 29532502 |
| 484753 | Jun 18, 1999 | Jun 18, 1999 | Unit Petroleum Company | Beck "C" #4 | 9,050 | 29532495 |
| 484692 | Jun 17, 1999 | Jun 17, 1999 | Strat Land Exploration Company | Bill, Jim #185 | 12,200 | 29532494 |
| 485196 | Jun 15, 1999 | Jun 15, 1999 | Mewbourne Oil Co. | Wynn #3 | 9,600 | 29532501 |
| 485046 | Jun 11, 1999 | Jun 11, 1999 | Crescendo Resources, L.P. | Poston, Hazel Louise et Al #3382 | 8,020 | 29532500 |
| 485046Amendment | Jun 11, 1999 | Jun 11, 1999 | Crescendo Resources, L.P. | Poston, Hazel Louise et Al #3382 | 8,020 | 29532500 |
| 485046Amendment | Jun 11, 1999 | Jun 11, 1999 | Apache Corporation | Poston, H. L. #3 | 8,100 | 29532500 |
| 485043 | Jun 9, 1999 | Jun 9, 1999 | Crescendo Resources, L.P. | Jackson #2418 | 8,250 | 29532497 |
| 485041 | Jun 9, 1999 | Jun 9, 1999 | Crescendo Resources, L.P. | Wiley #2718 | 7,900 | 29532499 |
| 484739 | May 25, 1999 | May 25, 1999 | Strat Land Exploration Company | Albert #1 | 11,550 | 29532496 |
| 484739Amendment | May 25, 1999 | May 25, 1999 | Strat Land Exploration Company | Albert #1 | 11,550 | 29532496 |
| 484576 | May 19, 1999 | May 19, 1999 | Crescendo Resources, L.P. | Hausler, Loraine G. #3366 | 11,200 | 29532493 |
| 484429 | May 12, 1999 | May 12, 1999 | Crescendo Resources, L.P. | Born, Alex "F" #4899 | 10,000 | 29532492 |
| 484429Amendment | May 12, 1999 | May 12, 1999 | Crescendo Resources, L.P. | Born, Alex "F" #4899 | 11,300 | 29532492 |
| 484395 | May 7, 1999 | May 7, 1999 | St. Mary Operating Company | Heil #3 | 10,000 | 29532491 |
| 484114 | May 3, 1999 | May 3, 1999 | Bracken Operating, L.L.C. | Bechthold #1989 | 7,600 | 29531699 |
| 483886 | Apr 22, 1999 | Apr 22, 1999 | Crescendo Resources, L.P. | Stabel #4948 | 9,900 | 29532490 |
| 483886Amendment | Apr 22, 1999 | Apr 22, 1999 | Crescendo Resources, L.P. | Stabel #4948 | 11,200 | 29532490 |
| 483525 | Mar 30, 1999 | Mar 30, 1999 | Enron Oil & Gas Company | Burrus 255 #2 | 11,400 | 29532489 |
| 483525Amendment | Mar 30, 1999 | Mar 30, 1999 | EOG Resources, Inc. | Burrus Family #2 | 11,400 | 29532489 |
| 483219 | Mar 15, 1999 | Mar 15, 1999 | Crescendo Resources, L.P. | Bradford #3775 | 10,200 | 29531846 |
| 483153 | Mar 11, 1999 | Mar 11, 1999 | Enron Oil & Gas Company | Wheat, James Roland "C" #1 | 10,970 | 29531751 |
| 481701 | Mar 10, 1999 | Mar 10, 1999 | Devon Energy Corporation(nevada) | Pundt 244 #1 | 12,000 | 29532486 |
| 482607 | Feb 9, 1999 | Feb 9, 1999 | Dreyfus, Louis Natural Gas Corp | Mary Ester 192 #1 | 10,650 | 29532366 |
| 482455 | Feb 8, 1999 | Feb 8, 1999 | Crescendo Resources, L.P. | Meier, Henry J. #3902 | 11,100 | 29532488 |
| 481597 | Jan 27, 1999 | Jan 27, 1999 | Strat Land Exploration Company | McIntosh #1 | 12,600 | 29532485 |
| 482178 | Jan 25, 1999 | Jan 25, 1999 | Crescendo Resources, L.P. | Bradford, Lydia "A" #4810 | 10,000 | 29532487 |
| 481596 | Jan 25, 1999 | Jan 25, 1999 | Strat Land Exploration Company | Taylor #1 | 12,300 | 29532484 |
| 481382 | Jan 7, 1999 | Jan 7, 1999 | Crescendo Resources, L.P. | Fair #5724 | 7,800 | 29532480 |
| 481822 | Jan 4, 1999 | Jan 4, 1999 | Strat Land Exploration Company | Bradley "D" #1 | 7,800 | 29531350 |
| 481822Amendment | Jan 4, 1999 | Jan 4, 1999 | Strat Land Exploration Company | Bradley "D" #1 | 7,800 | 29531350 |
| 481535 | Jan 4, 1999 | Jan 4, 1999 | Strat Land Exploration Company | Baileys #1 | 11,550 | 29532482 |
| 481534 | Dec 17, 1998 | Dec 17, 1998 | Strat Land Exploration Company | Denise #1 | 11,500 | 29532483 |
| 481534Amendment | Dec 17, 1998 | Dec 17, 1998 | Strat Land Exploration Company | Denise #1 | 11,500 | 29532483 |
| 481387 | Dec 16, 1998 | Dec 16, 1998 | Crescendo Resources, L.P. | Broyles Unit #3 | 10,000 | 29532481 |
| 481295 | Dec 9, 1998 | Dec 9, 1998 | Crescendo Resources, L.P. | Wassell, John R. "A" #4814 | 7,700 | 29532479 |
| 481049 | Nov 24, 1998 | Nov 24, 1998 | Crescendo Resources, L.P. | Piper, Ola O. #21 | 7,950 | 29532478 |
| 480921 | Nov 24, 1998 | Nov 24, 1998 | Continental Trend Resources, Inc | Siner #1 | 9,425 | 29531407 |
| 481042 | Nov 23, 1998 | Nov 23, 1998 | Crescendo Resources, L.P. | Bradford "C" #5723 | 7,800 | 29532477 |
| 480917 | Nov 16, 1998 | Nov 16, 1998 | Enron Oil & Gas Company | Burrus #2 | 11,400 | 29532476 |
| 480857 | Nov 13, 1998 | Nov 13, 1998 | Spring Resources, Inc. | Barton Estate #3 | 10,500 | 29532475 |
| 480857Amendment | Nov 13, 1998 | Nov 13, 1998 | Spring Resources, Inc. | Barton Estate #3 | 10,800 | 29532475 |
| 480829 | Nov 13, 1998 | Nov 13, 1998 | Brigham Oil & Gas, L.P. | William 347 #1 | 12,000 | 29532474 |
| 480828 | Nov 13, 1998 | Nov 13, 1998 | Brigham Oil & Gas, L.P. | Kristina 239 #1 | 12,000 | 29532473 |
| 480670 | Nov 10, 1998 | Nov 10, 1998 | Courson Oil & Gas, Inc. | Duke #1769 | 7,800 | 29532472 |
| 480602 | Nov 4, 1998 | Nov 4, 1998 | Continental Trend Resources, Inc | Barton "D" #1 | 11,085 | 29531244 |
| 480508 | Nov 2, 1998 | Nov 2, 1998 | Crescendo Resources, L.P. | Ginter, Martha #6458 | 11,000 | 29532471 |
| 480402 | Oct 30, 1998 | Oct 30, 1998 | Crescendo Resources, L.P. | Parker, Clarence Henry "a" 618 #1 | 10,158 | 29531100 |
| 480402Amendment | Oct 30, 1998 | Oct 30, 1998 | Crescendo Resources, L.P. | Parker, Clarence Henry "a" 618 #1 | 10,158 | 29531100 |
| 480349 | Oct 27, 1998 | Oct 27, 1998 | Cabot Oil & Gas Corporation | Lockhart 184 #3 | 11,600 | 29532468 |
| 480349Amendment | Oct 27, 1998 | Oct 27, 1998 | Cabot Oil & Gas Corporation | Lockhart 184 #3 | 11,600 | 29532468 |
| 480348 | Oct 27, 1998 | Oct 27, 1998 | Cabot Oil & Gas Corporation | Lockhart 184 #4 | 11,600 | 29532467 |
| 480347 | Oct 27, 1998 | Oct 27, 1998 | Cabot Oil & Gas Corporation | Loackhart 184 #5 | 11,600 | 29532466 |
| 480330 | Oct 23, 1998 | Oct 23, 1998 | Cabot Oil & Gas Corporation | Dorsey -6- #185 | 11,600 | 29532469 |
| 480329 | Oct 23, 1998 | Oct 23, 1998 | Cabot Oil & Gas Corporation | Lockhart -2- #184 | 11,600 | 29532470 |
| 477745 | Oct 22, 1998 | Oct 22, 1998 | Strat Land Exploration Company | Valerie #1 | 12,350 | 29532443 |
| 477744 | Oct 22, 1998 | Oct 22, 1998 | Strat Land Exploration Company | Michelle #1 | 12,400 | 29532442 |
| 480112 | Oct 13, 1998 | Oct 13, 1998 | Cabot Oil & Gas Corporation | Dorsey #5 | 11,600 | 29532465 |
| 480112Amendment | Oct 13, 1998 | Oct 13, 1998 | Cabot Oil & Gas Corporation | Dorsey #5 | 11,600 | 29532465 |
| 479985 | Oct 7, 1998 | Oct 7, 1998 | Brigham Oil & Gas, L.P. | Catherine 287 #1 | 12,000 | 29532464 |
| 479825 | Oct 6, 1998 | Oct 6, 1998 | Crescendo Resources, L.P. | Tubb, George Earl #3335 | 11,400 | 29532461 |
| 479825Amendment | Oct 6, 1998 | Oct 6, 1998 | Amoco Production Company | Tubb, George Earl #3335 | 11,400 | 29532461 |
| 479824 | Oct 6, 1998 | Oct 6, 1998 | Crescendo Resources, L.P. | Freeman, Eloda et Al #2333 | 11,400 | 29532462 |
| 479823 | Oct 6, 1998 | Oct 6, 1998 | Crescendo Resources, L.P. | Freeman, Eloda et al "A" #4334 | 11,400 | 29532463 |
| 479823Amendment | Oct 6, 1998 | Oct 6, 1998 | Crescendo Resources, L.P. | Freeman, Eloda et al "A" #4334 | 11,400 | 29532463 |
| 479746 | Sep 30, 1998 | Sep 30, 1998 | Crescendo Resources, L.P. | King Ranch #2549 | 13,000 | 29532460 |
| 479673 | Sep 28, 1998 | Sep 28, 1998 | Crescendo Resources, L.P. | Hamker, Wallace N. "B" #1 | 7,600 | 29530246 |
| 479672 | Sep 28, 1998 | Sep 28, 1998 | Crescendo Resources, L.P. | Wheat, James Roland "B" #1342 | 11,144 | 29531723 |
| 479459 | Sep 15, 1998 | Sep 15, 1998 | Brigham Oil & Gas, L.P. | Elise 286 #2 | 12,000 | 29532459 |
| 479328 | Sep 10, 1998 | Sep 10, 1998 | Cabot Oil & Gas Corporation | Gracie #1 | 9,000 | 29532457 |
| 479303 | Sep 10, 1998 | Sep 10, 1998 | Crescendo Resources, L.P. | Crossley Estate #3 | 11,500 | 29532458 |
| 479303Amendment | Sep 10, 1998 | Sep 10, 1998 | Crescendo Resources, L.P. | Crossley Estate #3 | 11,500 | 29532458 |
| 479316 | Sep 9, 1998 | Sep 9, 1998 | Crescendo Resources, L.P. | Jackson #1418 | 11,200 | 29532456 |
| 479316Amendment | Sep 9, 1998 | Sep 9, 1998 | Crescendo Resources, L.P. | Jackson #1418 | 11,200 | 29532456 |
| 478690 | Sep 8, 1998 | Sep 8, 1998 | Prospctv Invstmnt & Trdg Co, Ltd | Harhausen #1 | 8,500 | 29532446 |
| 479126 | Sep 2, 1998 | Sep 2, 1998 | Crescendo Resources, L.P. | Born, Alex et Al #5373 | 11,300 | 29532453 |
| 479125 | Sep 2, 1998 | Sep 2, 1998 | Crescendo Resources, L.P. | Born, Alex et Al #4373 | 8,300 | 29532454 |
| 479125Amendment | Sep 2, 1998 | Sep 2, 1998 | Amoco Production Company | Born, Alex et Al #4373 | 11,200 | 29532454 |
| 479097 | Sep 2, 1998 | Sep 2, 1998 | Strat Land Exploration Company | Thomas #1 | 11,550 | 29532452 |
| 478902 | Sep 2, 1998 | Sep 2, 1998 | Samson Lone Star LP | Longhofer #2470 | 9,198 | 29530976 |
| 479187 | Sep 1, 1998 | Sep 1, 1998 | Cabot Oil & Gas Corporation | Walter #3 | 11,600 | 29532455 |
| 479187Amendment | Sep 1, 1998 | Sep 1, 1998 | Upland Resources, Inc. | Walter #3 | 11,600 | 29532455 |
| 479065 | Aug 27, 1998 | Aug 27, 1998 | Cabot Oil & Gas Corporation | Dorsey #3 | 11,600 | 29532450 |
| 479064 | Aug 27, 1998 | Aug 27, 1998 | Cabot Oil & Gas Corporation | Dorsey #4 | 11,600 | 29532451 |
| 479062 | Aug 27, 1998 | Aug 27, 1998 | Brigham Oil & Gas, L.P. | Kimberly 190 #1 | 12,300 | 29532449 |
| 477547 | Aug 27, 1998 | Aug 27, 1998 | Crescendo Resources, L.P. | Born, Alex "B" #3 | 10,500 | 29532309 |
| 478781 | Aug 24, 1998 | Aug 24, 1998 | Cabot Oil & Gas Corporation | Dorsey "2" #185 | 11,407 | 29532429 |
| 478796 | Aug 21, 1998 | Aug 21, 1998 | Crescendo Resources, L.P. | King "C" #1 | 7,650 | 29532396 |