| 644813Amendment | Aug 30, 2007 | Aug 30, 2007 | Valence Operating Company | Black #11 | 15,000 | 28931694 |
| 645113 | Aug 29, 2007 | Aug 29, 2007 | Ensight III Energy Mgmt, LLC | Clute Gas Unit No. 1 #7 | 11,000 | 28931697 |
| 645014 | Aug 27, 2007 | Aug 27, 2007 | BRG Lone Star Ltd. | Christian #2 | 12,000 | 28931695 |
| 644317 | Aug 27, 2007 | Aug 27, 2007 | Chesapeake Operating, Inc. | Warren #1 | 22,000 | 28931696 |
| 644813 | Aug 23, 2007 | Aug 23, 2007 | Valence Operating Company | Black #11 | 15,000 | 28931694 |
| 644031 | Aug 11, 2007 | Aug 11, 2007 | Anadarko Petroleum Corporation | M. G. Burleson "A" #13 | 14,460 | 28931693 |
| 643635 | Aug 8, 2007 | Aug 8, 2007 | Gastar Exploration Texas, LP | Gastar Lone Oak Ranch Unit "C" #3 | 20,000 | 28931692 |
| 643635Amendment | Aug 8, 2007 | Aug 8, 2007 | Gastar Exploration Texas, LP | Gastar-Lone Oak Ranch #3HH | 20,000 | 28931692 |
| 643467 | Aug 7, 2007 | Aug 7, 2007 | Red Willow Production, LLC | Keechi Creek #1 | 17,000 | 28931690 |
| 643467Amendment | Aug 7, 2007 | Aug 7, 2007 | Red Willow Production, LLC | Keechi Creek #1 | 18,500 | 28931690 |
| 643395 | Aug 6, 2007 | Aug 6, 2007 | Anadarko Petroleum Corporation | Burleson, M. G. "A" #9 | 13,940 | 28931584 |
| 643230 | Aug 4, 2007 | Aug 4, 2007 | Ensight III Energy Mgmt, LLC | Clute Gas Unit No. 1 #6 | 11,000 | 28931689 |
| 641794 | Aug 4, 2007 | Aug 4, 2007 | BRG Lone Star Ltd. | Jensen Gas Unit #2 | 10,400 | 28931688 |
| 641552 | Aug 4, 2007 | Aug 4, 2007 | Rock Bottom Oil, GP, L.L.C. | H. Ray Collins SWD #1 | 7,000 | 28932000 |
| 643150 | Aug 3, 2007 | Aug 3, 2007 | Marathon Oil Company | Johnson, "A. B." #8 | 16,500 | 28931685 |
| 641292 | Aug 3, 2007 | Aug 3, 2007 | XTO Energy Inc. | Gail King #39 | 14,000 | 28931686 |
| 641292Amendment | Aug 3, 2007 | Aug 3, 2007 | XTO Energy Inc. | King, Gail #39 | 14,000 | 28931686 |
| 641925 | Aug 2, 2007 | Aug 2, 2007 | BRG Lone Star Ltd. | Ericson Gas Unit #2 | 10,400 | 28931678 |
| 642835 | Jul 31, 2007 | Jul 31, 2007 | Gastar Exploration Texas, LP | Gastar Wildman Trust #3 | 20,000 | 28931683 |
| 641199 | Jul 30, 2007 | Jul 30, 2007 | XTO Energy Inc. | Harris, Bobby Ray #3 | 7,000 | 28931684 |
| 642442 | Jul 25, 2007 | Jul 25, 2007 | Ensight III Energy Mgmt, LLC | Clute-Diehl GU 1 #6 | 11,200 | 28931681 |
| 640681 | Jul 25, 2007 | Jul 25, 2007 | XTO Energy Inc. | Pinnalce #2 | 10,000 | 28931237 |
| 642094 | Jul 20, 2007 | Jul 20, 2007 | XTO Energy Inc. | King, Gail #25HH | 18,500 | 28931680 |
| 641765 | Jul 13, 2007 | Jul 13, 2007 | Valence Operating Company | Lewis "B" #20 | 15,500 | 28931677 |
| 641765Amendment | Jul 13, 2007 | Jul 13, 2007 | Valence Operating Company | Lewis "B" #20 | 15,500 | 28931677 |
| 640406 | Jul 13, 2007 | Jul 13, 2007 | Anadarko Petroleum Corporation | Pollard, Jeanette #8 | 14,900 | 28931679 |
| 641412 | Jul 6, 2007 | Jul 6, 2007 | Valence Operating Company | Black #12 | 15,000 | 28931676 |
| 641147 | Jul 3, 2007 | Jul 3, 2007 | Valence Operating Company | Black #10 | 15,000 | 28931675 |
| 641147Amendment | Jul 3, 2007 | Jul 3, 2007 | Valence Operating Company | Black #10 | 15,000 | 28931675 |
| 641296 | Jun 25, 2007 | Jun 25, 2007 | Gastar Exploration Texas, LP | Gastar Wildman Trust #1 | 16,500 | 28931548 |
| 640669 | Jun 22, 2007 | Jun 22, 2007 | Ensight III Energy Mgmt, LLC | Barron-Hartman GU 1 #6 | 11,200 | 28931674 |
| 640411 | Jun 18, 2007 | Jun 18, 2007 | Anadarko Petroleum Corporation | O'Neal, G. #6 | 14,375 | 28931673 |
| 640071 | Jun 12, 2007 | Jun 12, 2007 | Ensight III Energy Mgmt, LLC | Ike Watson GU No. 1 #2 | 11,200 | 28931672 |
| 640070 | Jun 12, 2007 | Jun 12, 2007 | Ensight III Energy Mgmt, LLC | Ike Watson GU No. 1 #1 | 11,200 | 28931671 |
| 639768 | Jun 4, 2007 | Jun 4, 2007 | Gastar Exploration Texas, LP | Gastar Lone Oak Ranch Unit "D" #4HH | 13,750 | 28931670 |
| 638750 | Jun 4, 2007 | Jun 4, 2007 | XTO Energy Inc. | Holmes "S" #5 | 16,000 | 28931666 |
| 638750Amendment | Jun 4, 2007 | Jun 4, 2007 | XTO Energy Inc. | Holmes "S" #5 | 16,000 | 28931666 |
| 639687 | Jun 1, 2007 | Jun 1, 2007 | Marathon Oil Company | Minter #1 | 15,500 | 28931669 |
| 639687Amendment | Jun 1, 2007 | Jun 1, 2007 | Marathon Oil Company | Minter #1 | 17,500 | 28931669 |
| 639687Amendment | Jun 1, 2007 | Jun 1, 2007 | Marathon Oil Company | Minter #1 | 18,600 | 28931669 |
| 637078 | May 31, 2007 | May 31, 2007 | XTO Energy Inc. | Gail King #20HH | 18,500 | 28931665 |
| 637078Amendment | May 31, 2007 | May 31, 2007 | XTO Energy Inc. | Gail King #20HH | 18,500 | 28931665 |
| 639356 | May 24, 2007 | May 24, 2007 | Anadarko Petroleum Corporation | Mullenax, G. #8 | 13,990 | 28931668 |
| 639356Amendment | May 24, 2007 | May 24, 2007 | Anadarko Petroleum Corporation | Mullenax, G. #8 | 13,990 | 28931668 |
| 636100 | May 23, 2007 | May 23, 2007 | BRG Lone Star Ltd. | Jensen Gas Unit #1 | 10,437 | 28931477 |
| 636099 | May 23, 2007 | May 23, 2007 | BRG Lone Star Ltd. | Ericson Gas Unit #1 | 10,390 | 28931487 |
| 638966 | May 19, 2007 | May 19, 2007 | Anadarko Petroleum Corporation | Burleson, M. G. "A" #10 | 14,500 | 28931667 |
| 638435 | May 12, 2007 | May 12, 2007 | Ensight III Energy Mgmt, LLC | Clute Diehl GU 1 #5 | 11,200 | 28931664 |
| 638250 | May 11, 2007 | May 11, 2007 | Range Production Company | Simms #2 HH | 13,500 | 28931663 |
| 636622 | May 7, 2007 | May 7, 2007 | XTO Energy Inc. | King, Gail #9 | 15,500 | 28931662 |
| 637886 | May 2, 2007 | May 2, 2007 | Roberts & Hammack Inc. | Graham (Woodbine) Gas Unit #2 | 7,000 | 28931660 |
| 637809 | May 2, 2007 | May 2, 2007 | Chesapeake Operating, Inc. | Lion Heart #1 | 22,000 | 28931661 |
| 637809Amendment | May 2, 2007 | May 2, 2007 | Chesapeake Operating, Inc. | Lion Heart #1 | 22,000 | 28931661 |
| 637809Amendment | May 2, 2007 | May 2, 2007 | Chesapeake Operating, Inc. | Lion Heart #1 | 22,000 | 28931661 |
| 636461 | May 2, 2007 | May 2, 2007 | XTO Energy Inc. | Starrett Branch Gas Unit #1 | 17,000 | 28931659 |
| 636397 | May 2, 2007 | May 2, 2007 | XTO Energy Inc. | Grayson Gas Unit #2 | 14,100 | 28931658 |
| 636397Amendment | May 2, 2007 | May 2, 2007 | XTO Energy Inc. | Covington #1 | 15,000 | 28931658 |
| 637503 | Apr 30, 2007 | Apr 30, 2007 | Ensight III Energy Mgmt, LLC | J C Carlisle GU 1 #1 | 11,500 | 28931657 |
| 636208 | Apr 27, 2007 | Apr 27, 2007 | Anadarko Petroleum Corporation | M.G. Burleson "A" #16 | 14,585 | 28931656 |
| 635471 | Mar 23, 2007 | Mar 23, 2007 | Barrow-Shaver Resources Co. | Long #1 | 7,000 | 28931655 |
| 635210 | Mar 20, 2007 | Mar 20, 2007 | Williams, Clayton Energy, Inc. | Big Bill Simpson Unit #1 | 20,000 | 28931654 |
| 633805 | Mar 20, 2007 | Mar 20, 2007 | XTO Energy Inc. | Gail King #16 | 15,500 | 28931482 |
| 635013 | Mar 19, 2007 | Mar 19, 2007 | Roberts & Hammack Inc. | Graham #1 | 7,000 | 28931653 |
| 634857 | Mar 13, 2007 | Mar 13, 2007 | Barrow-Shaver Resources Co. | Green Unit #1 | 7,000 | 28931652 |
| 605140 | Mar 13, 2007 | Mar 13, 2007 | Encana Oil & Gas(usa) Inc. | Reliant Energy Unit #16 | 15,300 | 28931511 |
| 634564 | Mar 9, 2007 | Mar 9, 2007 | Anadarko Petroleum Corporation | Theresa Glanton "A" #5 | 14,575 | 28931651 |
| 632284 | Mar 9, 2007 | Mar 9, 2007 | Valence Operating Company | Black #6 | 15,000 | 28931644 |
| 632284Amendment | Mar 9, 2007 | Mar 9, 2007 | Valence Operating Company | Black #6 | 15,000 | 28931644 |
| 634276 | Mar 6, 2007 | Mar 6, 2007 | Valence Operating Company | Polar #1 | 15,000 | 28931650 |
| 634084 | Feb 26, 2007 | Feb 26, 2007 | Barrow-Shaver Resources Co. | Casey-C- #1 | 7,000 | 28931649 |
| 633949 | Feb 26, 2007 | Feb 26, 2007 | Texas Royalty Corp. | Dale #D 1 | 6,600 | 28931648 |
| 633365 | Feb 14, 2007 | Feb 14, 2007 | Barrow-Shaver Resources Co. | Allbritton #1 | 7,000 | 28931647 |
| 633178 | Feb 12, 2007 | Feb 12, 2007 | Ensight III Energy Mgmt, LLC | Hannah-Watson GU 1 #1 | 12,550 | 28931646 |
| 633178Amendment | Feb 12, 2007 | Feb 12, 2007 | Ensight III Energy Mgmt, LLC | Hannah-Watson GU 1 #1 | 12,550 | 28931646 |
| 633085 | Feb 8, 2007 | Feb 8, 2007 | Barrow-Shaver Resources Co. | Casey -B- Unit #1 | 7,000 | 28931645 |
| 632588 | Jan 30, 2007 | Jan 30, 2007 | Barrow-Shaver Resources Co. | Souders #1 | 7,000 | 28931643 |
| 631357 | Jan 29, 2007 | Jan 29, 2007 | XTO Energy Inc. | Holmes Gas Unit #1 | 9,800 | 28930324 |
| 632386 | Jan 25, 2007 | Jan 25, 2007 | Gastar Exploration Texas, LP | Gastar Greer #1 | 20,000 | 28931449 |
| 632252 | Jan 25, 2007 | Jan 25, 2007 | Diasu Oil & Gas Co., Inc. | Dot Cadenhead "E" #1 | 7,000 | 28931642 |
| 632250 | Jan 25, 2007 | Jan 25, 2007 | Diasu Oil & Gas Co., Inc. | Van Winkle Estate #1 | 7,000 | 28931641 |
| 632250Amendment | Jan 25, 2007 | Jan 25, 2007 | XTO Energy Inc. | Van Winkle Estate #1 | 7,000 | 28931641 |
| 631382 | Jan 25, 2007 | Jan 25, 2007 | Machin & Associates, Inc. | Williams #1 | 6,400 | 28931637 |
| 632087 | Jan 23, 2007 | Jan 23, 2007 | Ensight III Energy Mgmt, LLC | Barron Hartman GU 1 #5 | 11,190 | 28931640 |
| 631920 | Jan 19, 2007 | Jan 19, 2007 | Barrow-Shaver Resources Co. | Casey -A- #1 | 7,000 | 28931639 |
| 631857 | Jan 18, 2007 | Jan 18, 2007 | Chesapeake Operating, Inc. | Merlie #1 | 18,000 | 28931638 |
| 631857Amendment | Jan 18, 2007 | Jan 18, 2007 | Chesapeake Operating, Inc. | Underwood #1 | 18,000 | 28931638 |
| 631383 | Jan 5, 2007 | Jan 5, 2007 | Barrow-Shaver Resources Co. | Carmichael #1 | 7,000 | 28931636 |
| 631372 | Jan 5, 2007 | Jan 5, 2007 | Anadarko Petroleum Corporation | Jeanette Pollard #12 | 15,000 | 28931635 |
| 631331 | Jan 4, 2007 | Jan 4, 2007 | Ensight III Energy Mgmt, LLC | Barron-Hartman GU 1 #4 | 11,150 | 28931634 |
| 631026 | Dec 27, 2006 | Dec 27, 2006 | Barrow-Shaver Resources Co. | Casey #2 | 7,000 | 28931633 |
| 630531 | Dec 15, 2006 | Dec 15, 2006 | Diasu Oil & Gas Co., Inc. | Dot Cadenhead -D- #1 | 7,000 | 28931630 |
| 630544 | Dec 14, 2006 | Dec 14, 2006 | Gastar Exploration Texas, LP | Gastar Wagner #1 | 18,500 | 28931632 |
| 630544Amendment | Dec 14, 2006 | Dec 14, 2006 | Gastar Exploration Texas, LP | Gastar Wagner #1 | 18,500 | 28931632 |
| 630538 | Dec 14, 2006 | Dec 14, 2006 | Diasu Oil & Gas Co., Inc. | Harris, Bobby Ray #2 | 7,000 | 28931631 |
| 630323 | Dec 12, 2006 | Dec 12, 2006 | Barrow-Shaver Resources Co. | Williams #1 | 7,000 | 28931629 |
| 630312 | Dec 12, 2006 | Dec 12, 2006 | Gastar Exploration Texas, LP | Gastar Donelson #3 | 19,500 | 28931628 |
| 630241 | Dec 11, 2006 | Dec 11, 2006 | Ensight III Energy Mgmt, LLC | Clute GU1 #5 | 10,900 | 28931627 |
| 629727 | Dec 8, 2006 | Dec 8, 2006 | Diasu Oil & Gas Co., Inc. | Henson, Tom #1 | 7,000 | 28931625 |
| 629815 | Dec 4, 2006 | Dec 4, 2006 | Barrow-Shaver Resources Co. | Casey #1 | 7,500 | 28931626 |
| 629408 | Nov 27, 2006 | Nov 27, 2006 | Southwest Operating, Inc.-Tyler | Ferguson #1 | 6,600 | 28931624 |