| 560489Amendment | Apr 18, 2005 | Apr 18, 2005 | XTO Energy Inc. | Holmes "S" #7 | 16,000 | 28931478 |
| 560488 | Apr 18, 2005 | Apr 18, 2005 | XTO Energy Inc. | Holmes "S" #8 | 16,000 | 28931479 |
| 560488Amendment | Apr 18, 2005 | Apr 18, 2005 | XTO Energy Inc. | Holmes "S" #8 | 16,000 | 28931479 |
| 560379 | Apr 18, 2005 | Apr 18, 2005 | BRG Lone Star Ltd. | Jensen Gas Unit #1 | 10,200 | 28931477 |
| 560538 | Apr 15, 2005 | Apr 15, 2005 | Encana Oil & Gas(usa) Inc. | Reliant Energy Unit #14 | 15,500 | 28931480 |
| 560255 | Apr 14, 2005 | Apr 14, 2005 | Palmer Petroleum Inc. | Boggs #1 | 9,900 | 28931476 |
| 560141 | Apr 13, 2005 | Apr 13, 2005 | Anadarko Petroleum Corporation | G. Mullenax #2 | 15,000 | 28931474 |
| 560269 | Apr 11, 2005 | Apr 11, 2005 | Marathon Oil Company | Marshall "B" #1 | 16,500 | 28931475 |
| 559825 | Apr 5, 2005 | Apr 5, 2005 | Anadarko Petroleum Corporation | Hodges "A" #12 | 15,000 | 28931472 |
| 559862 | Apr 1, 2005 | Apr 1, 2005 | Prime Operating Company | Sandel O. K. Taylor Unit No. 2 #1 | 9,900 | 28931473 |
| 559565 | Mar 28, 2005 | Mar 28, 2005 | Diasu Oil & Gas Co., Inc. | Harrington #6 | 7,000 | 28931471 |
| 558819 | Mar 10, 2005 | Mar 10, 2005 | Hunt Petroleum Corporation | Blazek #6 | 13,820 | 28931469 |
| 558521 | Mar 8, 2005 | Mar 8, 2005 | Encana Oil & Gas(usa) Inc. | Reliant Energy Unit #13 | 15,300 | 28931468 |
| 558337 | Mar 2, 2005 | Mar 2, 2005 | Aroc (Texas) Inc. | Aroc Allied #1 | 9,900 | 28931467 |
| 557841 | Feb 28, 2005 | Feb 28, 2005 | Machin & Associates, Inc. | Johnson Heirs #1 | 6,400 | 28931465 |
| 558219 | Feb 25, 2005 | Feb 25, 2005 | Marathon Oil Company | Johnson "AB" #5 | 16,000 | 28931466 |
| 557916 | Feb 22, 2005 | Feb 22, 2005 | SDG Operating Company, Inc | Ivy Rogers Dorr #1 | 10,314 | 28930727 |
| 557718 | Feb 15, 2005 | Feb 15, 2005 | Diasu Oil & Gas Co., Inc. | Cadenhead #3 | 7,000 | 28931464 |
| 556477 | Feb 15, 2005 | Feb 15, 2005 | Encana Oil & Gas(usa) Inc. | Reliant Energy Unit #12 | 14,200 | 28931453 |
| 557648 | Feb 14, 2005 | Feb 14, 2005 | Valence Operating Company | Lewis "B" #9 | 15,000 | 28931462 |
| 557644 | Feb 14, 2005 | Feb 14, 2005 | Valence Operating Company | Lewis "B" #12 | 15,000 | 28931463 |
| 557617 | Feb 14, 2005 | Feb 14, 2005 | Blackwell Operating Company | Bryan #2 | 7,000 | 28931459 |
| 557617Amendment | Feb 14, 2005 | Feb 14, 2005 | XTO Energy Inc. | Bryan #2 | 7,000 | 28931459 |
| 557616 | Feb 14, 2005 | Feb 14, 2005 | Blackwell Operating Company | Hamblen, Beverly #1 | 7,000 | 28931460 |
| 557515 | Feb 10, 2005 | Feb 10, 2005 | Marathon Oil Company | Johnson "AB" #4 | 16,000 | 28931457 |
| 557515Amendment | Feb 10, 2005 | Feb 10, 2005 | Marathon Oil Company | Johnson "AB" #4 | 16,000 | 28931457 |
| 557505 | Feb 10, 2005 | Feb 10, 2005 | Anadarko Petroleum Corporation | M. G. Burleson "A" #4 | 15,000 | 28931458 |
| 557376 | Feb 8, 2005 | Feb 8, 2005 | Valence Operating Company | Lewis "B" #11 | 15,000 | 28931456 |
| 557284 | Feb 4, 2005 | Feb 4, 2005 | First Texas Gas, LP | Kaufman, Gastar Fridkin, Ltd. #2 | 20,000 | 28931455 |
| 557284Amendment | Feb 4, 2005 | Feb 4, 2005 | First Source Gas, LP | Kaufman, Gastar Fridkin, Ltd. #2 | 20,000 | 28931455 |
| 556650 | Jan 26, 2005 | Jan 26, 2005 | Anadarko Petroleum Corp. | Theresa Glanton "A" #1 | 15,000 | 28931454 |
| 555882 | Jan 7, 2005 | Jan 7, 2005 | Valence Operating Company | Lewis "B" #10 | 15,000 | 28931452 |
| 555714 | Jan 5, 2005 | Jan 5, 2005 | Diasu Oil & Gas Co., Inc. | Harrington #4 | 7,000 | 28931451 |
| 555713 | Jan 5, 2005 | Jan 5, 2005 | Cape Operating, Inc. | Rose, Jan G #1 | 6,200 | 28931450 |
| 555601 | Jan 3, 2005 | Jan 3, 2005 | First Texas Gas, LP | Greer, Gastar #1 | 20,000 | 28931449 |
| 555394 | Dec 30, 2004 | Dec 30, 2004 | Roberts & Hammack, Inc. | T. E. Harcrow Gas Unit 1 #3 | 5,900 | 28931448 |
| 554544 | Dec 9, 2004 | Dec 9, 2004 | Brown, Tom Inc. | Reliant Energy Unit #11 | 15,100 | 28931447 |
| 554334 | Dec 6, 2004 | Dec 6, 2004 | Anadarko Petroleum Corporation | Hodges "A" #11 | 15,000 | 28931446 |
| 554333 | Dec 6, 2004 | Dec 6, 2004 | Anadarko Petroleum Corporation | Hodges "A" #10 | 15,000 | 28931445 |
| 553726 | Nov 24, 2004 | Nov 24, 2004 | XTO Energy Inc. | King, Gail #8 | 15,500 | 28931444 |
| 553397 | Nov 12, 2004 | Nov 12, 2004 | Brown, Tom Inc. | Reliant Energy Unit #10 | 13,700 | 28931443 |
| 553397Amendment | Nov 12, 2004 | Nov 12, 2004 | Encana Oil & Gas(usa) Inc. | Reliant Energy Unit #10 | 14,011 | 28931443 |
| 553285 | Nov 9, 2004 | Nov 9, 2004 | Anadarko Petroleum Corporation | Hodges "A" #8 | 15,000 | 28931442 |
| 553248 | Nov 5, 2004 | Nov 5, 2004 | Diasu Oil & Gas Co., Inc. | Cadenhead #1 | 7,000 | 28931441 |
| 552926 | Oct 28, 2004 | Oct 28, 2004 | Marathon Oil Company | Corby "A" #1 | 16,000 | 28931440 |
| 552926Amendment | Oct 28, 2004 | Oct 28, 2004 | Marathon Oil Company | Corby "A" #1 | 16,000 | 28931440 |
| 552509 | Oct 21, 2004 | Oct 21, 2004 | Brown, Tom Inc. | Reliant Energy Unit #9 | 15,500 | 28931439 |
| 552382 | Oct 19, 2004 | Oct 19, 2004 | Anadarko Petroleum Corporation | M. G. Burleson "A" #3 | 15,000 | 28931438 |
| 552368 | Oct 19, 2004 | Oct 19, 2004 | Anadarko Petroleum Corporation | M. G. Burleson "A" #2 | 15,000 | 28931437 |
| 552006 | Oct 11, 2004 | Oct 11, 2004 | Brown, Tom Inc. | Reliant Energy Unit #8 | 15,500 | 28931436 |
| 550916 | Oct 8, 2004 | Oct 8, 2004 | Bryant - Chase Energy Corp. | Cox, Phillip #1 | 6,000 | 28931429 |
| 551561 | Sep 27, 2004 | Sep 27, 2004 | Valence Operating Company | Black #1 | 15,000 | 28931435 |
| 551334 | Sep 22, 2004 | Sep 22, 2004 | Anadarko Petroleum Corp. | G. Mullenax #1 | 14,000 | 28931434 |
| 551334Amendment | Sep 22, 2004 | Sep 22, 2004 | Anadarko Petroleum Corp. | Mullenax, G. #1 | 15,000 | 28931434 |
| 551168 | Sep 17, 2004 | Sep 17, 2004 | Diasu Oil & Gas Co., Inc. | Cadenhead #2 | 7,000 | 28931433 |
| 551164 | Sep 17, 2004 | Sep 17, 2004 | Diasu Oil & Gas Co., Inc. | Cadenhead #1 | 7,000 | 28931432 |
| 551164Amendment | Sep 17, 2004 | Sep 17, 2004 | Diasu Oil & Gas Co., Inc. | Cadenhead #1 | 7,000 | 28931432 |
| 551164Amendment | Sep 17, 2004 | Sep 17, 2004 | Miller Energy, Inc. | Cadenhead #1 | 7,000 | 28931432 |
| 551126 | Sep 16, 2004 | Sep 16, 2004 | Peak Natural Gas Co., LLC | Montgomery #3 | 8,975 | 28931431 |
| 550926 | Sep 16, 2004 | Sep 16, 2004 | Valence Operating Company | Lewis "B" #8 | 15,000 | 28931430 |
| 546998 | Aug 27, 2004 | Aug 27, 2004 | Marathon Oil Company | Poth Family Trust #3 | 16,000 | 28931413 |
| 550170 | Aug 26, 2004 | Aug 26, 2004 | Valence Operating Company | Grizzly #3 | 15,000 | 28931428 |
| 550097 | Aug 25, 2004 | Aug 25, 2004 | First Source Texas, Inc. | Gastar Lone Oak Ranch #1 #1 | 20,000 | 28931427 |
| 550097Amendment | Aug 25, 2004 | Aug 25, 2004 | First Texas Gas, LP | Gastar Lone Oak Ranch #1 | 20,000 | 28931427 |
| 550097Amendment | Aug 25, 2004 | Aug 25, 2004 | First Source Gas, LP | Gastar Lone Oak Ranch #1 | 20,000 | 28931427 |
| 548921 | Aug 3, 2004 | Aug 3, 2004 | Anadarko Petroleum Corp. | Hodges "A" #7 | 15,000 | 28931426 |
| 548637 | Jul 26, 2004 | Jul 26, 2004 | Anadarko Petroleum Corporation | Hodges "A" #6 | 15,000 | 28931425 |
| 548619 | Jul 26, 2004 | Jul 26, 2004 | Anadarko Petroleum Corp. | Hodges "A" #5 | 15,000 | 28931424 |
| 546573 | Jul 22, 2004 | Jul 22, 2004 | Marathon Oil Company | Beddingfield #2 | 16,000 | 28931412 |
| 548406 | Jul 21, 2004 | Jul 21, 2004 | Brown, Tom Inc. | Reliant Energy Unit #7 | 15,600 | 28931423 |
| 547951 | Jul 9, 2004 | Jul 9, 2004 | Pioneer Natural Res. USA, Inc. | Pullen Gas Unit #3 | 10,200 | 28931422 |
| 547884 | Jul 8, 2004 | Jul 8, 2004 | Pioneer Natural Res. USA, Inc. | Helmcamp #1 | 10,200 | 28931421 |
| 547753 | Jul 6, 2004 | Jul 6, 2004 | Pioneer Natural Res. USA, Inc. | Pullen Gas Unit #2 | 10,200 | 28931420 |
| 547753Amendment | Jul 6, 2004 | Jul 6, 2004 | Pioneer Natural Res. USA, Inc. | Pullen Gas Unit #2 | 10,200 | 28931420 |
| 547678 | Jul 2, 2004 | Jul 2, 2004 | XTO Energy Inc. | King, Gail #7 | 14,900 | 28931419 |
| 547612 | Jun 30, 2004 | Jun 30, 2004 | XTO Energy Inc. | King, Gail #4 | 14,900 | 28931418 |
| 547612Amendment | Jun 30, 2004 | Jun 30, 2004 | XTO Energy Inc. | King, Gail #4 | 16,000 | 28931418 |
| 547425 | Jun 28, 2004 | Jun 28, 2004 | Brown, Tom Inc. | Reliant Energy Unit #6 | 15,500 | 28931417 |
| 547343 | Jun 24, 2004 | Jun 24, 2004 | Anadarko Petroleum Corp. | Hodges "A" #3 | 14,000 | 28931416 |
| 547343Amendment | Jun 24, 2004 | Jun 24, 2004 | Anadarko Petroleum Corp. | Hodges "A" #3 | 15,000 | 28931416 |
| 547341 | Jun 23, 2004 | Jun 23, 2004 | Anadarko Petroleum Corp. | Hodges "A" #4 | 14,000 | 28931415 |
| 547341Amendment | Jun 23, 2004 | Jun 23, 2004 | Anadarko Petroleum Corp. | Hodges "A" #4 | 15,000 | 28931415 |
| 547127 | Jun 18, 2004 | Jun 18, 2004 | Barrow-Shaver Resources Co. | Leathers #1 | 7,000 | 28931414 |
| 547127Amendment | Jun 18, 2004 | Jun 18, 2004 | Barrow-Shaver Resources Co. | Leathers #1 | 7,000 | 28931414 |
| 546541 | Jun 4, 2004 | Jun 4, 2004 | Valence Operating Company | Grizzly #2 | 15,000 | 28931411 |
| 545960 | May 20, 2004 | May 20, 2004 | Valence Operating Company | Lewis "B" #7 | 15,500 | 28931410 |
| 545599 | May 12, 2004 | May 12, 2004 | Blackwell Operating Company | Bryan #1 | 7,000 | 28931409 |
| 544596 | Apr 21, 2004 | Apr 21, 2004 | Palmer Petroleum Inc. | Sarandos #1 | 9,500 | 28931408 |
| 544487 | Apr 15, 2004 | Apr 15, 2004 | Miller Energy, Inc. | Harris "A" #1 | 7,000 | 28931407 |
| 544407 | Apr 14, 2004 | Apr 14, 2004 | Hunt Petroleum Corporation | Blazek #2 | 10,115 | 28931152 |
| 544299 | Apr 12, 2004 | Apr 12, 2004 | First Source Texas, Inc. | Cheney, Gastar #1 | 16,500 | 28931406 |
| 544299Amendment | Apr 12, 2004 | Apr 12, 2004 | First Source Texas, Inc. | Cheney, Gastar #1 | 20,000 | 28931406 |
| 544299Amendment | Apr 12, 2004 | Apr 12, 2004 | First Source Texas, Inc. | Cheney, Gastar #1 | 20,000 | 28931406 |
| 543537 | Apr 12, 2004 | Apr 12, 2004 | Sklar Exploration Company LLC | Hill, V. K. #1 | 9,600 | 28931405 |
| 543537Amendment | Apr 12, 2004 | Apr 12, 2004 | Sklar Exploration Company LLC | Hill, V. K. #1 | 9,600 | 28931405 |
| 543438 | Mar 23, 2004 | Mar 23, 2004 | Brown, Tom Inc. | Goostree #2 | 15,800 | 28931403 |
| 543478 | Mar 19, 2004 | Mar 19, 2004 | Unit Petroleum Company | Montgomery #1 | 18,500 | 28931404 |
| 543478Amendment | Mar 19, 2004 | Mar 19, 2004 | Unit Petroleum Company | Montgomery #1 | 18,500 | 28931404 |
| 543253 | Mar 19, 2004 | Mar 19, 2004 | Miller Energy, Inc. | Harrington #5 | 7,000 | 28931402 |
| 543087 | Mar 17, 2004 | Mar 17, 2004 | Brown, Tom Inc. | Reliant Energy Unit #5 | 14,100 | 28931401 |