| 669656 | Sep 11, 2008 | Sep 11, 2008 | Roberts & Hammack Inc. | Jeter #2 | 6,800 | 28931774 |
| 669464 | Sep 10, 2008 | Sep 10, 2008 | XTO Energy Inc. | Haynie Gas Unit #2 | 18,500 | 28931773 |
| 669464Amendment | Sep 10, 2008 | Sep 10, 2008 | XTO Energy Inc. | Haynie Gas Unit #2 | 18,500 | 28931773 |
| 669250 | Sep 6, 2008 | Sep 6, 2008 | Valence Operating Company | Lewis "B" #22 | 15,500 | 28931772 |
| 669061 | Sep 5, 2008 | Sep 5, 2008 | Tag Operating Company, Inc. | Sand Hill Farm "C" #3 | 7,000 | 28931771 |
| 667865 | Sep 5, 2008 | Sep 5, 2008 | BRG Lone Star Ltd. | Daughtry Gas Unit #2 | 10,600 | 28931766 |
| 668794 | Sep 2, 2008 | Sep 2, 2008 | Asm Oil & Gas Company, Inc. | Robeson #1 | 10,000 | 28931770 |
| 668039 | Aug 26, 2008 | Aug 26, 2008 | Forest Oil Corporation | Barron-Hartman Gas Unit No. 1 #7 | 11,000 | 28931769 |
| 668065 | Aug 18, 2008 | Aug 18, 2008 | Forest Oil Corporation | A. G. Hill Gas Unit No. 1 #5 | 12,000 | 28931768 |
| 668065Amendment | Aug 18, 2008 | Aug 18, 2008 | Forest Oil Corporation | A. G. Hill Gas Unit No. 1 #5 | 12,000 | 28931768 |
| 668055 | Aug 18, 2008 | Aug 18, 2008 | Forest Oil Corporation | A. G. Hill Gas Unit No. 1 #4 | 12,000 | 28931767 |
| 668055Amendment | Aug 18, 2008 | Aug 18, 2008 | Forest Oil Corporation | A. G. Hill Gas Unit No. 1 #4 | 12,000 | 28931767 |
| 667838 | Aug 15, 2008 | Aug 15, 2008 | Spicer Oil Company, Inc. | Ward Heirs #1 | 7,400 | 28931765 |
| 667569 | Aug 11, 2008 | Aug 11, 2008 | Gastar Exploration Texas, LP | Gastar Wildman Trust #4 | 20,000 | 28931764 |
| 667478 | Aug 9, 2008 | Aug 9, 2008 | XTO Energy Inc. | Newell "A" #7 | 16,000 | 28931763 |
| 667477 | Aug 9, 2008 | Aug 9, 2008 | XTO Energy Inc. | Newell "A" #6 | 16,000 | 28931762 |
| 667987 | Aug 4, 2008 | Aug 4, 2008 | Red Willow Production, LLC | Keechi Creek #2 | 15,500 | 28931761 |
| 667987Amendment | Aug 4, 2008 | Aug 4, 2008 | Red Willow Production, LLC | Keechi Creek A #2 | 15,500 | 28931761 |
| 666522 | Jul 31, 2008 | Jul 31, 2008 | BRG Lone Star Ltd. | Haynie #1 | 11,500 | 28931760 |
| 666298 | Jul 29, 2008 | Jul 29, 2008 | Forest Oil Corporation | Ike Watson GU No. 1 #6 | 13,000 | 28931759 |
| 666296 | Jul 28, 2008 | Jul 28, 2008 | Forest Oil Corporation | Ike Watson Gas Unit No. 1 #7 | 13,000 | 28931758 |
| 665666 | Jul 21, 2008 | Jul 21, 2008 | Gastar Exploration Texas, LP | Gastar Lone Oak Ranch #7 | 20,000 | 28931757 |
| 663559 | Jul 11, 2008 | Jul 11, 2008 | Woodbine Production Corporation | Osr Halliday Unit #802 | 8,300 | 28931756 |
| 664734 | Jul 7, 2008 | Jul 7, 2008 | Forest Oil Corporation | Ike Watson GU No. 1 #5 | 11,500 | 28931755 |
| 664654 | Jul 3, 2008 | Jul 3, 2008 | XTO Energy Inc. | Johns Gas Unit #1 | 17,500 | 28931754 |
| 664442 | Jul 1, 2008 | Jul 1, 2008 | Encana Oil & Gas(usa) Inc. | Little 4 Ranch #1 | 19,500 | 28931753 |
| 664263 | Jun 30, 2008 | Jun 30, 2008 | Forest Oil Corporation | Hannah-Watson GU 1 #3 | 13,000 | 28931752 |
| 663328 | Jun 30, 2008 | Jun 30, 2008 | Prime Operating Company | Sandel - O.K. Taylor NO 2 #1 | 8,800 | 28931473 |
| 664252 | Jun 28, 2008 | Jun 28, 2008 | Texas Royalty Corp. | Norcom #1 | 7,000 | 28931751 |
| 664124 | Jun 26, 2008 | Jun 26, 2008 | Basa Resources, Inc. | Cook #2 | 8,735 | 28931061 |
| 664080 | Jun 26, 2008 | Jun 26, 2008 | Forest Oil Corporation | Hannah-Watson GU 1 #5 | 13,000 | 28931750 |
| 663900 | Jun 24, 2008 | Jun 24, 2008 | Valence Operating Company | Black #14 | 15,000 | 28931749 |
| 663440 | Jun 23, 2008 | Jun 23, 2008 | Par Minerals Corporation | Gonzales #1 | 8,800 | 28931748 |
| 663565 | Jun 21, 2008 | Jun 21, 2008 | Burlington Resources O & G Co LP | Reed #1 | 20,000 | 28931747 |
| 663565Amendment | Jun 21, 2008 | Jun 21, 2008 | Burlington Resources O & G Co LP | Reed #1 | 20,000 | 28931747 |
| 664262 | Jun 19, 2008 | Jun 19, 2008 | Forest Oil Corporation | Hannah-Watson GU 1 #4 | 13,000 | 28931746 |
| 663906 | Jun 9, 2008 | Jun 9, 2008 | Dallas Production, Inc. | Long, Joe & Nell #1 | 14,000 | 28931745 |
| 661612 | May 29, 2008 | May 29, 2008 | Encana Oil & Gas(usa) Inc. | F.G. Winters #1 | 19,500 | 28931744 |
| 661083 | May 27, 2008 | May 27, 2008 | Valence Operating Company | Ellis "B" #1 | 10,500 | 28930497 |
| 661292 | May 22, 2008 | May 22, 2008 | Chesapeake Operating, Inc. | Bryan Smith #1 | 14,000 | 28931743 |
| 661010 | May 20, 2008 | May 20, 2008 | Chesapeake Operating, Inc. | Gresham #1B | 22,000 | 28931742 |
| 660877 | May 19, 2008 | May 19, 2008 | Sklar Exploration Company LLC | V.K. Hill #3 | 9,600 | 28931741 |
| 660862 | May 19, 2008 | May 19, 2008 | Gastar Exploration Texas, LP | Gastar-Belin #1 | 20,000 | 28931740 |
| 660862Amendment | May 19, 2008 | May 19, 2008 | Gastar Exploration Texas, LP | Gastar-Belin Gas Unit #1 #1 | 18,605 | 28931740 |
| 660373 | May 8, 2008 | May 8, 2008 | Chesapeake Operating, Inc. | Collins #1 | 20,000 | 28931739 |
| 657440 | Apr 29, 2008 | Apr 29, 2008 | Barrow-Shaver Resources Co. | Cain #1 | 7,000 | 28931731 |
| 659585 | Apr 26, 2008 | Apr 26, 2008 | Ensight III Energy Mgmt, LLC | Ike Watson GU No. 1 #4 | 11,200 | 28931738 |
| 659352 | Apr 25, 2008 | Apr 25, 2008 | XTO Energy Inc. | Swanson Gas Unit #1 | 18,500 | 28931737 |
| 658861 | Apr 21, 2008 | Apr 21, 2008 | Ensight III Energy Mgmt, LLC | Clute Gas Unit No. 1 #8 | 11,200 | 28931736 |
| 658734 | Apr 16, 2008 | Apr 16, 2008 | Ensight III Energy Mgmt, LLC | Milton Golie Gas Unit No. 1 #1 | 11,100 | 28931735 |
| 658645 | Apr 14, 2008 | Apr 14, 2008 | Marathon Oil Company | Nash #3 | 17,000 | 28931734 |
| 658451 | Apr 12, 2008 | Apr 12, 2008 | XTO Energy Inc. | Gail King #35 | 15,500 | 28931733 |
| 658327 | Apr 10, 2008 | Apr 10, 2008 | XTO Energy Inc. | Starrett Branch Gas Unit #3 | 17,000 | 28931732 |
| 656166 | Mar 6, 2008 | Mar 6, 2008 | Ensight III Energy Mgmt, LLC | Ike Watson GU No. 1 #3 | 12,500 | 28931730 |
| 656025 | Mar 4, 2008 | Mar 4, 2008 | Gastar Exploration Texas, LP | Gastar-Lone Oak Ranch #5HH | 15,000 | 28931729 |
| 655467 | Feb 25, 2008 | Feb 25, 2008 | Gastar Exploration Texas, LP | Gastar-Lone Oak Ranch #6 | 20,000 | 28931728 |
| 655070 | Feb 25, 2008 | Feb 25, 2008 | Encana Oil & Gas(usa) Inc. | Carr, A. D. "a" Unit #1 | 19,500 | 28931727 |
| 655070Amendment | Feb 25, 2008 | Feb 25, 2008 | Encana Oil & Gas(usa) Inc. | Carr, A. D. "a" Unit #1 | 19,500 | 28931727 |
| 655070Amendment | Feb 25, 2008 | Feb 25, 2008 | Encana Oil & Gas(usa) Inc. | Carr, A. D. A #1 | 19,500 | 28931727 |
| 654966 | Feb 19, 2008 | Feb 19, 2008 | Encana Oil & Gas(usa) Inc. | Chaney, J. Unit #1 | 19,500 | 28931726 |
| 654966Amendment | Feb 19, 2008 | Feb 19, 2008 | Encana Oil & Gas(usa) Inc. | Chaney, J. Unit #1 | 19,500 | 28931726 |
| 654419 | Feb 9, 2008 | Feb 9, 2008 | Valence Operating Company | Lewis "B" #18 | 15,500 | 28931725 |
| 654231 | Feb 7, 2008 | Feb 7, 2008 | Ensight III Energy Mgmt, LLC | Hannah-Watson GU 1 #2 | 12,500 | 28931723 |
| 654212 | Feb 7, 2008 | Feb 7, 2008 | XTO Energy Inc. | Gail King #32HH | 17,500 | 28931724 |
| 653936 | Feb 5, 2008 | Feb 5, 2008 | Big Run Production Company | Hagemeister Unit #1 | 5,500 | 28930108 |
| 653385 | Jan 28, 2008 | Jan 28, 2008 | Diasu Oil & Gas Co., Inc. | Weathervane #1 | 7,000 | 28931721 |
| 653828 | Jan 25, 2008 | Jan 25, 2008 | XTO Energy Inc. | Anderson-Bing #2 | 7,000 | 28931722 |
| 653317 | Jan 25, 2008 | Jan 25, 2008 | Prime Operating Company | M. B. Rudman - McLeroy #1 | 6,400 | 28900203 |
| 652888 | Jan 17, 2008 | Jan 17, 2008 | BRG Lone Star Ltd. | Ellison Gas Unit #1 | 10,500 | 28931720 |
| 652861 | Jan 17, 2008 | Jan 17, 2008 | Sandel Operating Company | Taylor, O. K. #1 | 9,650 | 28900191 |
| 652533 | Jan 14, 2008 | Jan 14, 2008 | XTO Energy Inc. | King, Gail #37HH | 18,500 | 28931719 |
| 652528 | Jan 14, 2008 | Jan 14, 2008 | XTO Energy Inc. | Gail King #28HH | 18,500 | 28931718 |
| 652411 | Jan 10, 2008 | Jan 10, 2008 | BRG Lone Star Ltd. | Daughtry Gas Unit #1 | 10,600 | 28931717 |
| 650717 | Dec 12, 2007 | Dec 12, 2007 | Ensight III Energy Mgmt, LLC | Thorne-Barkley Gas Unit No. 1 #1 | 11,100 | 28931716 |
| 650765 | Dec 11, 2007 | Dec 11, 2007 | Ensight III Energy Mgmt, LLC | A.G. Hill Gas Unit No. 1 #3 | 12,000 | 28931715 |
| 650401 | Dec 7, 2007 | Dec 7, 2007 | Gastar Exploration Texas, LP | Gastar Holmes #1 | 20,000 | 28931713 |
| 650338 | Dec 6, 2007 | Dec 6, 2007 | Gsi Oil & Gas, Inc. | Marquez No. 1 SWD #1 | 3,500 | 28931714 |
| 650338Amendment | Dec 6, 2007 | Dec 6, 2007 | Gsi Oil & Gas, Inc. | Marquez No. 1 SWD #1 | 3,500 | 28931714 |
| 650015 | Nov 30, 2007 | Nov 30, 2007 | Roberts & Hammack Inc. | Frison "A" #1 | 7,000 | 28931712 |
| 650015Amendment | Nov 30, 2007 | Nov 30, 2007 | Roberts & Hammack Inc. | Frison "A" #1 | 6,710 | 28931712 |
| 650008 | Nov 30, 2007 | Nov 30, 2007 | Dallas Production, Inc. | Story "A" #1 | 13,000 | 28931711 |
| 648659 | Nov 19, 2007 | Nov 19, 2007 | Roberts & Hammack Inc. | Jeter #1 | 7,000 | 28931707 |
| 649477 | Nov 16, 2007 | Nov 16, 2007 | Ensight III Energy Mgmt, LLC | A.g.hill Gas Unit No. 1 #2 | 12,000 | 28931710 |
| 649327 | Nov 16, 2007 | Nov 16, 2007 | BRG Lone Star Ltd. | Furlough #1 | 10,600 | 28931709 |
| 649167 | Nov 14, 2007 | Nov 14, 2007 | Sinclair Oil & Gas Company | Vanderbeek #2 | 18,500 | 28931708 |
| 649046 | Nov 14, 2007 | Nov 14, 2007 | Gastar Exploration Texas, LP | Gastar Wildman Trust #2 | 19,500 | 28931572 |
| 643467Amendment | Nov 14, 2007 | Nov 14, 2007 | Red Willow Production, LLC | Keechi Creek #1 | 18,500 | 28931690 |
| 648396 | Oct 31, 2007 | Oct 31, 2007 | Marathon Oil Company | Johnson, "A. B." #9 | 16,500 | 28931706 |
| 648276 | Oct 26, 2007 | Oct 26, 2007 | XTO Energy Inc. | King, Gail #1AHH | 18,500 | 28931705 |
| 647243 | Oct 19, 2007 | Oct 19, 2007 | Ensight III Energy Mgmt, LLC | Clute-Diehl GU 1 #7 | 11,200 | 28931703 |
| 647637 | Oct 16, 2007 | Oct 16, 2007 | XTO Energy Inc. | Cadenhead J #1 | 7,250 | 28931704 |
| 646904 | Oct 8, 2007 | Oct 8, 2007 | Valence Operating Company | Little Flock #1 | 15,000 | 28931702 |
| 646708 | Sep 28, 2007 | Sep 28, 2007 | Valence Operating Company | Black #15 | 15,000 | 28931701 |
| 646708Amendment | Sep 28, 2007 | Sep 28, 2007 | Valence Operating Company | Black #15 | 15,000 | 28931701 |
| 646686 | Sep 28, 2007 | Sep 28, 2007 | Marathon Oil Company | Marshall "B" #2 | 16,500 | 28931700 |
| 622732Amendment | Sep 25, 2007 | Sep 25, 2007 | Chesapeake Operating, Inc. | Baldwin #1 | 17,000 | 28931594 |
| 642613 | Sep 20, 2007 | Sep 20, 2007 | Machin & Associates, Inc. | Williams #2 | 6,400 | 28931682 |
| 646147 | Sep 19, 2007 | Sep 19, 2007 | Ensight III Energy Mgmt, LLC | A. G. Hill Gas Unit No. 1 #1 | 12,000 | 28931699 |
| 644206 | Sep 17, 2007 | Sep 17, 2007 | Italian-American Oil Co., Inc. | J M Harrington #2 | 6,000 | 28931698 |
| 644087 | Sep 13, 2007 | Sep 13, 2007 | XTO Energy Inc. | Ogle Gas Unit #1 | 10,380 | 28931541 |