| 504135 | Jan 22, 2001 | Jan 22, 2001 | Amoco Production Company | Schoenhals #4508 | 7,950 | 29532586 |
| 504134 | Jan 22, 2001 | Jan 22, 2001 | Amoco Production Company | Crossley Estate #4425 | 8,400 | 29532587 |
| 504138 | Jan 19, 2001 | Jan 19, 2001 | Amoco Production Company | Abraham, Tom #5507 | 7,900 | 29532585 |
| 504137 | Jan 19, 2001 | Jan 19, 2001 | Amoco Production Company | Blackmore, Elna T. #3367 | 8,400 | 29532584 |
| 504136 | Jan 19, 2001 | Jan 19, 2001 | Amoco Production Company | Schoenhals, Valentine "C" #3510 | 8,100 | 29532583 |
| 503776 | Jan 16, 2001 | Jan 16, 2001 | Amoco Production Company | King, Harry L. et Al #3506 | 7,900 | 29532582 |
| 502785 | Jan 3, 2001 | Jan 3, 2001 | Unit Petroleum Company | Hoeppner #3 | 9,100 | 29532574 |
| 503399 | Jan 2, 2001 | Jan 2, 2001 | Amoco Production Company | Barton Trust #1 | 10,825 | 29532390 |
| 503442 | Dec 29, 2000 | Dec 29, 2000 | Amoco Production Company | Harris, Mack C. #3419 | 8,100 | 29532579 |
| 503441 | Dec 29, 2000 | Dec 29, 2000 | Amoco Production Company | Harris, Mack C. #2419 | 8,100 | 29532580 |
| 503416 | Dec 27, 2000 | Dec 27, 2000 | Strat Land Exploration Company | Baileys #4183 | 7,700 | 29532578 |
| 503196 | Dec 21, 2000 | Dec 21, 2000 | Amoco Production Company | Tubb, George E. "D" #5371 | 8,300 | 29532576 |
| 503173 | Dec 21, 2000 | Dec 21, 2000 | Amoco Production Company | Tubb, George Earl #4335 | 8,400 | 29532577 |
| 502101 | Dec 14, 2000 | Dec 14, 2000 | Amoco Production Company | Smith, Vester #4700 | 10,300 | 29532575 |
| 502640 | Dec 7, 2000 | Dec 7, 2000 | Amoco Production Company | Peery, Hollene #2331 | 8,200 | 29532572 |
| 502639 | Dec 7, 2000 | Dec 7, 2000 | Amoco Production Company | Freeman, Eloda et Al #3333 | 8,250 | 29532573 |
| 502597 | Dec 7, 2000 | Dec 7, 2000 | Amoco Production Company | Barton Trust #3379 | 8,150 | 29532571 |
| 502597Amendment | Dec 7, 2000 | Dec 7, 2000 | Amoco Production Company | Barton Trust #3379 | 8,150 | 29532571 |
| 502596 | Dec 7, 2000 | Dec 7, 2000 | Amoco Production Company | Barton Trust #4379 | 8,150 | 29532570 |
| 502592 | Dec 7, 2000 | Dec 7, 2000 | Amoco Production Company | Tubb, George Earl "B" #4370 | 8,350 | 29532569 |
| 502588 | Dec 7, 2000 | Dec 7, 2000 | Canyon Exploration Co. | Weinette #1 | 9,800 | 29532568 |
| 502389 | Dec 4, 2000 | Dec 4, 2000 | Amoco Production Company | Kelln, Christ H. et al "A" #3 | 10,200 | 29532566 |
| 502100 | Nov 30, 2000 | Nov 30, 2000 | Amoco Production Company | Porter, Jack R. #2380 | 8,100 | 29532564 |
| 502100Amendment | Nov 30, 2000 | Nov 30, 2000 | Amoco Production Company | Porter, Jack R. #2380 | 8,100 | 29532564 |
| 502099 | Nov 30, 2000 | Nov 30, 2000 | Amoco Production Company | Porter, Jack R. #3380 | 8,100 | 29532563 |
| 502099Amendment | Nov 30, 2000 | Nov 30, 2000 | Amoco Production Company | Porter, Jack R. #3380 | 8,100 | 29532563 |
| 502099Amendment | Nov 30, 2000 | Nov 30, 2000 | Amoco Production Company | Porter, Jack R. #3380 | 8,135 | 29532563 |
| 502223 | Nov 22, 2000 | Nov 22, 2000 | Jones Energy, Ltd. | Piper 633 #1 | 9,000 | 29532565 |
| 502104 | Nov 22, 2000 | Nov 22, 2000 | Amoco Production Company | Bradford #7775 | 10,100 | 29532560 |
| 502103 | Nov 22, 2000 | Nov 22, 2000 | Amoco Production Company | Bradford, Lydia #5811 | 10,100 | 29532561 |
| 502103Amendment | Nov 22, 2000 | Nov 22, 2000 | Amoco Production Company | Bradford, Lydia M. #5811 | 10,100 | 29532561 |
| 502102 | Nov 22, 2000 | Nov 22, 2000 | Amoco Production Company | Smith, Martha Ann #2699 | 10,300 | 29532562 |
| 501096 | Nov 22, 2000 | Nov 22, 2000 | Samson Lone Star LP | Schultz E #5870 | 8,000 | 29532556 |
| 501999 | Nov 20, 2000 | Nov 20, 2000 | Strat Land Exploration Company | Gray #2254 | 11,500 | 29532559 |
| 501480 | Nov 1, 2000 | Nov 1, 2000 | Samson Lone Star LP | Fry #5977 | 8,000 | 29532558 |
| 501118 | Oct 27, 2000 | Oct 27, 2000 | St. Johns Operating #1 L.P. | Barton Estate #4 | 8,400 | 29532557 |
| 498627 | Oct 2, 2000 | Oct 2, 2000 | Jones Energy, Ltd. | Price, Willis D. #6 | 10,500 | 29532551 |
| 500139 | Sep 28, 2000 | Sep 28, 2000 | Apache Corporation | Barton, Jay D et al "B" #2 | 10,700 | 29530939 |
| 500019 | Sep 27, 2000 | Sep 27, 2000 | Amoco Production Company | Duke, C. C. "A" #7728 | 7,375 | 29532416 |
| 500010 | Sep 27, 2000 | Sep 27, 2000 | Amoco Production Company | Born, Alex "F" #5899 | 10,200 | 29532555 |
| 500010Amendment | Sep 27, 2000 | Sep 27, 2000 | Amoco Production Company | Born, Alex "F" #5899 | 10,200 | 29532555 |
| 500015 | Sep 26, 2000 | Sep 26, 2000 | Strat Land Exploration Company | Baileys #3183 | 7,700 | 29532554 |
| 499969 | Sep 25, 2000 | Sep 25, 2000 | Bracken Operating, L.L.C. | Deeds #1991 | 10,700 | 29532553 |
| 499450 | Sep 13, 2000 | Sep 13, 2000 | Strat Land Exploration Company | Citizens National Park Trustee D #1 | 11,680 | 29580102 |
| 499449 | Sep 13, 2000 | Sep 13, 2000 | Strat Land Exploration Company | Scott #1273 | 11,500 | 29532552 |
| 499449Amendment | Sep 13, 2000 | Sep 13, 2000 | Strat Land Exploration Company | Scott #1273 | 11,500 | 29532552 |
| 498952 | Sep 7, 2000 | Sep 7, 2000 | Amoco Production Company | Bradford "C" #4 | 10,000 | 29532148 |
| 497899 | Aug 30, 2000 | Aug 30, 2000 | Jones Energy, Ltd. | Parker, Harry #3 | 10,600 | 29532543 |
| 498490 | Aug 25, 2000 | Aug 25, 2000 | Amoco Production Company | Porter, Jack R. #1380 | 8,100 | 29532542 |
| 498491 | Aug 21, 2000 | Aug 21, 2000 | Amoco Production Company | Porter, Jack R. #1381 | 8,050 | 29532549 |
| 498593 | Aug 18, 2000 | Aug 18, 2000 | Apache Corporation | Hamker, Wallace N. "B" #4 | 7,650 | 29532550 |
| 498399 | Aug 18, 2000 | Aug 18, 2000 | Amoco Production Company | Harris, Mack C #1419 | 11,200 | 29532544 |
| 497300 | Aug 17, 2000 | Aug 17, 2000 | Jones Energy, Ltd. | Doyle, John B. #3 | 10,500 | 29532538 |
| 497300Amendment | Aug 17, 2000 | Aug 17, 2000 | Jones Energy, Ltd. | Doyle, John B. #3 | 10,500 | 29532538 |
| 497299 | Aug 17, 2000 | Aug 17, 2000 | Jones Energy, Ltd. | Schultz Brothers #3B | 10,600 | 29532539 |
| 497362 | Aug 16, 2000 | Aug 16, 2000 | Upland Resources, Inc. | Heil #1 | 8,100 | 29532540 |
| 498514 | Aug 15, 2000 | Aug 15, 2000 | Samson Lone Star LP | Schultz D #4889 | 8,000 | 29532545 |
| 498513 | Aug 15, 2000 | Aug 15, 2000 | Samson Lone Star LP | Schultz D #3889 | 8,000 | 29532546 |
| 498512 | Aug 15, 2000 | Aug 15, 2000 | Samson Lone Star LP | Schultz C #4960 | 8,000 | 29532547 |
| 498512Amendment | Aug 15, 2000 | Aug 15, 2000 | Samson Lone Star LP | Schultz C #4960 | 8,000 | 29532547 |
| 498511 | Aug 15, 2000 | Aug 15, 2000 | Samson Lone Star LP | Schultz C #3960 | 8,000 | 29532548 |
| 497871 | Aug 1, 2000 | Aug 1, 2000 | Mewbourne Oil Co. | Peery #7 | 7,755 | 29530749 |
| 497655 | Jul 26, 2000 | Jul 26, 2000 | Apache Corporation | Merydith, W. C. "D" #3 | 9,400 | 29532541 |
| 496665 | Jul 6, 2000 | Jul 6, 2000 | Strat Land Exploration Company | Frazier #2 | 8,600 | 29531306 |
| 496664 | Jul 6, 2000 | Jul 6, 2000 | Strat Land Exploration Company | Rene "1054" #1 | 10,050 | 29532536 |
| 496668 | Jun 30, 2000 | Jun 30, 2000 | Strat Land Exploration Company | Andrew #1 | 12,300 | 29532441 |
| 496662 | Jun 30, 2000 | Jun 30, 2000 | Strat Land Exploration Company | Baileys #2183 | 7,700 | 29532537 |
| 496531 | Jun 29, 2000 | Jun 29, 2000 | Discovery Operating, Inc. | Schultz 783 #1 | 10,400 | 29532535 |
| 495906 | Jun 7, 2000 | Jun 7, 2000 | Canyon Exploration Co. | Mary Jane #1 | 9,400 | 29532534 |
| 495399 | May 23, 2000 | May 23, 2000 | Unit Petroleum Company | Hamker "C" #1 | 10,300 | 29532533 |
| 494717 | May 8, 2000 | May 8, 2000 | Strat Land Exploration Company | Thomas #1 | 11,425 | 29532452 |
| 494397 | Apr 26, 2000 | Apr 26, 2000 | Amoco Production Company | Peery, Hollene #3375 | 8,300 | 29532531 |
| 493919 | Apr 12, 2000 | Apr 12, 2000 | Wolf Creek Exploration Company | Schultz #1 | 6,050 | 29532530 |
| 493044 | Apr 11, 2000 | Apr 11, 2000 | Amoco Production Company | Wheat, James Roland et Al #5455 | 10,750 | 29532528 |
| 493044Amendment | Apr 11, 2000 | Apr 11, 2000 | Amoco Production Company | Wheat, James Roland et Al #5455 | 8,000 | 29532528 |
| 493044Amendment | Apr 11, 2000 | Apr 11, 2000 | Amoco Production Company | Wheat, James Roland et Al #5455 | 10,750 | 29532528 |
| 493401 | Mar 23, 2000 | Mar 23, 2000 | Unit Petroleum Company | Schoenhals #2 | 10,000 | 29531375 |
| 493203 | Mar 22, 2000 | Mar 22, 2000 | Crescendo Resources, L.P. | Ginter, Martha #5458 | 9,550 | 29532276 |
| 492242 | Feb 24, 2000 | Feb 24, 2000 | Amoco Production Company | Abraham, Tom #4507 | 8,100 | 29532526 |
| 492243 | Feb 23, 2000 | Feb 23, 2000 | Amoco Production Company | Bradford, Lydia "A" #5810 | 10,000 | 29532527 |
| 492071 | Feb 17, 2000 | Feb 17, 2000 | Amoco Production Company | Peery, Hollene et al "A" #4374 | 11,200 | 29532525 |
| 491631 | Feb 1, 2000 | Feb 1, 2000 | Brigham Oil & Gas, L.P. | Katy 285 #1 | 11,400 | 29532437 |
| 491134 | Jan 25, 2000 | Jan 25, 2000 | Amoco Production Company | Jackson #3418 | 11,200 | 29532524 |
| 491133 | Jan 20, 2000 | Jan 20, 2000 | Amoco Production Company | Duke, C. C. "A" #8728 | 7,650 | 29532523 |
| 490944 | Jan 12, 2000 | Jan 12, 2000 | Crescendo Resources, L.P. | Schultz "C" #4885 | 7,700 | 29532522 |
| 490911 | Jan 12, 2000 | Jan 12, 2000 | Crescendo Resources, L.P. | Hanshu #6726 | 7,650 | 29532521 |
| 490910 | Jan 11, 2000 | Jan 11, 2000 | Crescendo Resources, L.P. | Piper "C" #4719 | 7,900 | 29532520 |
| 490674 | Dec 29, 1999 | Dec 29, 1999 | Crescendo Resources, L.P. | Bradford #6775 | 7,750 | 29532519 |
| 490491 | Dec 21, 1999 | Dec 21, 1999 | Continental Trend Resources, Inc | Siner #1 | 9,425 | 29531407 |
| 490082 | Dec 16, 1999 | Dec 16, 1999 | Crescendo Resources, L.P. | Piper, Ola O. #14 | 9,190 | 29532279 |
| 490004 | Dec 2, 1999 | Dec 2, 1999 | Dreyfus, Louis Natural Gas Corp | Rader 104 #2 | 11,000 | 29532517 |
| 489086 | Nov 24, 1999 | Nov 24, 1999 | Washita Oil and Gas, L.L.C. | Schultz #1784 | 10,300 | 29532516 |
| 488995 | Nov 24, 1999 | Nov 24, 1999 | Crescendo Resources, L.P. | Barton Trust #1 | 10,300 | 29532390 |
| 490601 | Nov 15, 1999 | Nov 15, 1999 | Strat Land Exploration Company | Bill, Jim #185A | 12,250 | 29532518 |
| 490601Amendment | Nov 15, 1999 | Nov 15, 1999 | Strat Land Exploration Company | Bill, Jim #185A | 12,600 | 29532518 |
| 488890 | Oct 27, 1999 | Oct 27, 1999 | Strat Land Exploration Company | Chew, M. P. #3 | 8,750 | 29531283 |
| 487982 | Oct 19, 1999 | Oct 19, 1999 | Strat Land Exploration Company | Cindy #1092 | 12,450 | 29532514 |
| 488200 | Oct 13, 1999 | Oct 13, 1999 | Helmerich & Payne, Inc. | Lena Mae #1819 | 8,860 | 29531758 |
| 488230 | Oct 6, 1999 | Oct 6, 1999 | Crescendo Resources, L.P. | Piper #3 | 8,975 | 29532438 |
| 488090 | Oct 1, 1999 | Oct 1, 1999 | Manti Operating Company | Schultz #6951 | 11,000 | 29532515 |