| 611942 | Jan 6, 2006 | Jan 6, 2006 | Diasu Oil & Gas Co., Inc. | Dot Cadenhead #1 | 7,000 | 28931549 |
| 611808 | Jan 3, 2006 | Jan 3, 2006 | First Source Gas, LP | Gastar Wildman Trust #1 | 15,000 | 28931548 |
| 611808Amendment | Jan 3, 2006 | Jan 3, 2006 | First Source Gas, LP | Gastar Wildman Trust #1 | 16,500 | 28931548 |
| 611808Amendment | Jan 3, 2006 | Jan 3, 2006 | Gastar Exploration Texas, LP | Gastar Wildman Trust #1 | 16,500 | 28931548 |
| 611808Amendment | Jan 3, 2006 | Jan 3, 2006 | Gastar Exploration Texas, LP | Gastar Wildman Trust #1 | 16,500 | 28931548 |
| 611594 | Dec 28, 2005 | Dec 28, 2005 | Valence Operating Company | Black #5 | 15,000 | 28931547 |
| 610167 | Dec 28, 2005 | Dec 28, 2005 | Diasu Oil & Gas Co., Inc. | Coleman #2 | 7,000 | 28931537 |
| 609726 | Dec 28, 2005 | Dec 28, 2005 | Anadarko Petroleum Corporation | Hodges "A" #14HH | 17,000 | 28931534 |
| 611595 | Dec 27, 2005 | Dec 27, 2005 | XTO Energy Inc. | King, Gail #26 | 15,500 | 28931546 |
| 611303 | Dec 20, 2005 | Dec 20, 2005 | Anadarko Petroleum Corporation | Savage #8 | 12,000 | 28931545 |
| 611303Amendment | Dec 20, 2005 | Dec 20, 2005 | Anadarko Petroleum Corporation | Savage #8 | 12,000 | 28931545 |
| 611137 | Dec 16, 2005 | Dec 16, 2005 | EOG Resources, Inc. | A. B. Johnson #1R | 16,000 | 28931544 |
| 611137Amendment | Dec 16, 2005 | Dec 16, 2005 | EOG Resources, Inc. | A. B. Johnson #1R | 16,000 | 28931544 |
| 610978 | Dec 16, 2005 | Dec 16, 2005 | Ensight III Energy Mgmt, LLC | Clute-Diehl Gas Unit No. 1 #3 | 11,400 | 28931543 |
| 610823 | Dec 16, 2005 | Dec 16, 2005 | XTO Energy Inc. | Pinnacle #3 | 9,300 | 28931302 |
| 610759 | Dec 12, 2005 | Dec 12, 2005 | Anadarko Petroleum Corporation | G. Mullenax #5 | 14,000 | 28931540 |
| 610763 | Dec 9, 2005 | Dec 9, 2005 | Anadarko Petroleum Corporation | M. G. Burleson "A" #7 | 14,000 | 28931542 |
| 610762 | Dec 9, 2005 | Dec 9, 2005 | Palmer Petroleum Inc. | Ogle #1 | 9,900 | 28931541 |
| 610762Amendment | Dec 9, 2005 | Dec 9, 2005 | Palmer Petroleum Inc. | Ogle #1 | 10,600 | 28931541 |
| 610369 | Dec 7, 2005 | Dec 7, 2005 | Valence Operating Company | Lewis "B" #14 | 15,000 | 28931539 |
| 609746 | Dec 6, 2005 | Dec 6, 2005 | XTO Energy Inc. | Jensen "A" #2 | 16,000 | 28931039 |
| 610261 | Dec 2, 2005 | Dec 2, 2005 | Burlington Resources O & G Co LP | Rainbolt Ranch #2 | 18,900 | 28931538 |
| 610261Amendment | Dec 2, 2005 | Dec 2, 2005 | Burlington Resources O & G Co LP | Rainbolt Ranch #2 | 18,900 | 28931538 |
| 608838 | Nov 29, 2005 | Nov 29, 2005 | Diasu Oil & Gas Co., Inc. | Cadenhead #H 1 | 7,000 | 28931530 |
| 610084 | Nov 28, 2005 | Nov 28, 2005 | Diasu Oil & Gas Co., Inc. | Cadenhead #G 1 | 7,000 | 28931536 |
| 608633 | Nov 23, 2005 | Nov 23, 2005 | Diasu Oil & Gas Co., Inc. | King #1 | 7,000 | 28931527 |
| 609851 | Nov 21, 2005 | Nov 21, 2005 | Prime Operating Company | Sandel-O.K. Taylor Unit No. 2 #1 | 9,697 | 28931473 |
| 609751 | Nov 18, 2005 | Nov 18, 2005 | Dallas Production, Inc. | Irwin "A" #2 | 12,600 | 28931535 |
| 609676 | Nov 17, 2005 | Nov 17, 2005 | Anadarko Petroleum Corporation | Pollard, Jeanette #3 | 14,000 | 28931533 |
| 607329 | Nov 17, 2005 | Nov 17, 2005 | XTO Energy Inc. | Gail King #2 | 15,000 | 28930315 |
| 609387 | Nov 14, 2005 | Nov 14, 2005 | Palmer Petroleum Inc. | Boggs #1H | 9,250 | 28931476 |
| 609338 | Nov 10, 2005 | Nov 10, 2005 | Brooks Petroleum Company | Kuhrik, Carl T. #1HH | 11,000 | 28930591 |
| 609321 | Nov 10, 2005 | Nov 10, 2005 | Diasu Oil & Gas Co., Inc. | Harris #B 2 | 7,000 | 28931532 |
| 608831 | Nov 2, 2005 | Nov 2, 2005 | Diasu Oil & Gas Co., Inc. | Coleman #1 | 7,000 | 28931529 |
| 608831Amendment | Nov 2, 2005 | Nov 2, 2005 | Diasu Oil & Gas Co., Inc. | Coleman #1 | 7,000 | 28931529 |
| 608520 | Nov 2, 2005 | Nov 2, 2005 | XTO Energy Inc. | Pullen Gas Unit #2 | 9,800 | 28931420 |
| 608469 | Oct 28, 2005 | Oct 28, 2005 | XTO Energy Inc. | Jimmy Beddingfield Gas Unit NO.1 #2 | 15,200 | 28931525 |
| 608469Amendment | Oct 28, 2005 | Oct 28, 2005 | XTO Energy Inc. | Jimmy Beddingfield Gas Unit #ii #1 | 15,200 | 28931525 |
| 608082 | Oct 18, 2005 | Oct 18, 2005 | Diasu Oil & Gas Co., Inc. | Cadenhead #F 1 | 7,000 | 28931524 |
| 607572 | Oct 10, 2005 | Oct 10, 2005 | Valence Operating Company | Lewis "B" #19 | 15,000 | 28931523 |
| 607572Amendment | Oct 10, 2005 | Oct 10, 2005 | Valence Operating Company | Lewis "B" #19 | 15,500 | 28931523 |
| 607285 | Oct 6, 2005 | Oct 6, 2005 | XTO Energy Inc. | Gail King #29 | 15,000 | 28931522 |
| 607097 | Sep 29, 2005 | Sep 29, 2005 | Anadarko Petroleum Corporation | Hodges "A" #13 | 15,000 | 28931521 |
| 606789 | Sep 22, 2005 | Sep 22, 2005 | Diasu Oil & Gas Co., Inc. | Harris #B 1 | 7,000 | 28931520 |
| 606621 | Sep 22, 2005 | Sep 22, 2005 | XTO Energy Inc. | King, Gail #3 | 10,100 | 28931207 |
| 606738 | Sep 21, 2005 | Sep 21, 2005 | Valence Operating Company | Lewis "B" #17 | 15,000 | 28931519 |
| 606721 | Sep 21, 2005 | Sep 21, 2005 | First Source Gas, LP | Donelson, Gastar #2 | 15,000 | 28931518 |
| 606721Amendment | Sep 21, 2005 | Sep 21, 2005 | First Source Gas, LP | Donelson, Gastar #2 | 15,000 | 28931518 |
| 606676 | Sep 21, 2005 | Sep 21, 2005 | Anadarko Petroleum Corporation | Mullenax, G. #4 | 14,500 | 28931517 |
| 606455 | Sep 19, 2005 | Sep 19, 2005 | Burlington Resources O & G Co LP | Chaney #1 | 18,375 | 28931516 |
| 606455Amendment | Sep 19, 2005 | Sep 19, 2005 | Burlington Resources O & G Co LP | Chaney #1 | 19,500 | 28931516 |
| 606455Amendment | Sep 19, 2005 | Sep 19, 2005 | Burlington Resources O & G Co LP | Chaney #1 | 19,500 | 28931516 |
| 605138 | Sep 14, 2005 | Sep 14, 2005 | Encana Oil & Gas(usa) Inc. | Reliant Energy Unit #15 | 15,600 | 28931509 |
| 606234 | Sep 13, 2005 | Sep 13, 2005 | Anadarko Petroleum Corporation | Sanders "A" #1 | 18,000 | 28931515 |
| 606234Amendment | Sep 13, 2005 | Sep 13, 2005 | Anadarko Petroleum Corporation | Sanders "A" #1 | 18,000 | 28931515 |
| 606133 | Sep 13, 2005 | Sep 13, 2005 | Valence Operating Company | Little Flock #1 | 15,000 | 28931514 |
| 606026 | Sep 8, 2005 | Sep 8, 2005 | Barrow-Shaver Resources Co. | Coldiron #1 | 7,500 | 28931513 |
| 605506 | Aug 26, 2005 | Aug 26, 2005 | Crest Resources, Inc. | Howard, Ben #1 | 9,800 | 28931512 |
| 600779 | Aug 26, 2005 | Aug 26, 2005 | Palmer Petroleum Inc. | Vann #1 | 9,900 | 28931490 |
| 605145 | Aug 25, 2005 | Aug 25, 2005 | Diasu Oil & Gas Co., Inc. | Cadenhead #E 1 | 7,000 | 28931508 |
| 605115 | Aug 22, 2005 | Aug 22, 2005 | XTO Energy Inc. | King, Gail #22HH | 14,500 | 28931510 |
| 605109 | Aug 19, 2005 | Aug 19, 2005 | Diasu Oil & Gas Co., Inc. | Cadenhead #D 1 | 7,000 | 28931507 |
| 604927 | Aug 15, 2005 | Aug 15, 2005 | Anadarko Petroleum Corporation | Jeanette Pollard #2 | 15,000 | 28931506 |
| 604927Amendment | Aug 15, 2005 | Aug 15, 2005 | Anadarko Petroleum Corporation | Pollard, Jeanette #2 | 15,000 | 28931506 |
| 603657 | Aug 8, 2005 | Aug 8, 2005 | Bowles Energy Inc | Lacey, Robert A. Trust #2 | 4,000 | 28930690 |
| 604494 | Aug 5, 2005 | Aug 5, 2005 | Ensight Energy Management, LLC | Clute Gas Unit 1 #2 | 11,000 | 28931505 |
| 600320 | Aug 3, 2005 | Aug 3, 2005 | BRG Lone Star Ltd. | Ericson Gas Unit #1 | 10,200 | 28931487 |
| 604244 | Aug 2, 2005 | Aug 2, 2005 | Key Production Company, Inc. | Price #1 | 6,200 | 28931504 |
| 604021 | Jul 27, 2005 | Jul 27, 2005 | Marathon Oil Company | Pinnacle #5 | 16,000 | 28931503 |
| 604021Amendment | Jul 27, 2005 | Jul 27, 2005 | Marathon Oil Company | Pinnacle #5 | 16,000 | 28931503 |
| 604021Amendment | Jul 27, 2005 | Jul 27, 2005 | Marathon Oil Company | Pinnacle #5 | 16,000 | 28931503 |
| 603736 | Jul 21, 2005 | Jul 21, 2005 | Diasu Oil & Gas Co., Inc. | Cadenhead #C 1 | 7,000 | 28931502 |
| 603736Amendment | Jul 21, 2005 | Jul 21, 2005 | XTO Energy Inc. | Cadenhead "C" #1 | 7,000 | 28931502 |
| 603105 | Jul 7, 2005 | Jul 7, 2005 | Anadarko Petroleum Corporation | G. Mullenax #3 | 15,000 | 28931501 |
| 602647 | Jun 28, 2005 | Jun 28, 2005 | Marathon Oil Company | Corby "A" #2 | 16,000 | 28931500 |
| 602485 | Jun 23, 2005 | Jun 23, 2005 | Ridge Petroleum Inc. | Haley Heirs #2 | 6,000 | 28931499 |
| 602484 | Jun 23, 2005 | Jun 23, 2005 | Ridge Petroleum Inc. | Metz #2 | 6,000 | 28931498 |
| 602268 | Jun 20, 2005 | Jun 20, 2005 | Anadarko Petroleum Corporation | M. G. Burleson "A" #5 | 15,000 | 28931497 |
| 601627 | Jun 8, 2005 | Jun 8, 2005 | XTO Energy Inc. | King, Gail #15 | 15,200 | 28931495 |
| 601498 | Jun 6, 2005 | Jun 6, 2005 | Anadarko Petroleum Corporation | Pollard, Jeanette #1 | 15,000 | 28931494 |
| 601422 | Jun 2, 2005 | Jun 2, 2005 | Marathon Oil Company | Johnson, A. B. #6 | 16,000 | 28931493 |
| 601354 | May 31, 2005 | May 31, 2005 | Sulphur River Exploration, Inc. | Garrett Trust #1 | 17,000 | 28931492 |
| 601354Amendment | May 31, 2005 | May 31, 2005 | Sulphur River Exploration, Inc. | Garrett Trust #1 | 17,000 | 28931492 |
| 601090 | May 23, 2005 | May 23, 2005 | Wildco Resources, Inc. | Walker Gas Unit 1 #3 | 9,350 | 28931373 |
| 600956 | May 23, 2005 | May 23, 2005 | Brooks Petroleum Company | Carbalan #2 | 10,120 | 28931255 |
| 600995 | May 20, 2005 | May 20, 2005 | First Texas Gas, LP | Donelson, Gastar #1 | 20,000 | 28931491 |
| 600995Amendment | May 20, 2005 | May 20, 2005 | First Source Gas, LP | Donelson, Gastar #1 | 20,000 | 28931491 |
| 600995Amendment | May 20, 2005 | May 20, 2005 | First Source Gas, LP | Donelson, Gastar #1 | 20,000 | 28931491 |
| 600995Amendment | May 20, 2005 | May 20, 2005 | Gastar Exploration Texas, LP | Donelson, Gastar #1 | 20,000 | 28931491 |
| 600820 | May 18, 2005 | May 18, 2005 | Burlington Resources O & G Co LP | Rainbolt Ranch #1 | 18,375 | 28931489 |
| 600820Amendment | May 18, 2005 | May 18, 2005 | Burlington Resources O & G Co LP | Rainbolt Ranch #1 | 18,375 | 28931489 |
| 600820Amendment | May 18, 2005 | May 18, 2005 | Burlington Resources O & G Co LP | Rainbolt Ranch #1 | 18,375 | 28931489 |
| 600618 | May 17, 2005 | May 17, 2005 | Wortham Oil & Gas | Harrison Hornsby #1H | 7,750 | 28900411 |
| 600230 | May 10, 2005 | May 10, 2005 | Valence Operating Company | Lewis 'B' #13 | 15,000 | 28931486 |
| 560984 | Apr 26, 2005 | Apr 26, 2005 | XTO Energy Inc. | King, Gail #18 | 15,500 | 28931484 |
| 559378 | Apr 26, 2005 | Apr 26, 2005 | Anadarko Petroleum Corporation | Hodges "A" #9 | 15,000 | 28931470 |
| 560849 | Apr 22, 2005 | Apr 22, 2005 | XTO Energy Inc. | King, Gail #17 | 15,500 | 28931483 |
| 560848 | Apr 22, 2005 | Apr 22, 2005 | XTO Energy Inc. | King, Gail #16 | 15,500 | 28931482 |
| 560836 | Apr 20, 2005 | Apr 20, 2005 | Diasu Oil & Gas Co., Inc. | Cadenhead #A 2 | 7,000 | 28931481 |
| 560489 | Apr 18, 2005 | Apr 18, 2005 | XTO Energy Inc. | Holmes "S" #7 | 16,000 | 28931478 |