| 634920Amendment | Mar 20, 2007 | Mar 20, 2007 | Samson Lone Star, LLC | Boyd #2414 | 4,000 | 34133015 |
| 634739 | Mar 20, 2007 | Mar 20, 2007 | Adams, K. S. Jr. | Sones #2 | 3,800 | 34133016 |
| 632078 | Feb 21, 2007 | Feb 21, 2007 | Samson Lone Star LP | Foreman #2011 | 4,000 | 34133014 |
| 632078Amendment | Feb 21, 2007 | Feb 21, 2007 | Samson Lone Star LP | Foreman #2011 | 4,000 | 34133014 |
| 632078Amendment | Feb 21, 2007 | Feb 21, 2007 | Samson Lone Star LP | Foreman #2011 | 4,000 | 34133014 |
| 629528 | Nov 29, 2006 | Nov 29, 2006 | Stallion Energy LLC | Bivins Fee #4H | 3,500 | 34100844 |
| 629544 | Nov 28, 2006 | Nov 28, 2006 | BP America Production Company | McKee, Garland 399 #4 | 3,600 | 34133012 |
| 627037 | Nov 21, 2006 | Nov 21, 2006 | Stallion Energy LLC | Bivins Fee #3H | 3,500 | 34101896 |
| 627223 | Nov 8, 2006 | Nov 8, 2006 | Gould Oil Inc. | Masterson #7610 | 2,370 | 34133010 |
| 628287 | Oct 31, 2006 | Oct 31, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #171R | 2,800 | 34133011 |
| 627216 | Oct 10, 2006 | Oct 10, 2006 | Questa Energy Corporation | Herrmann #2 | 3,650 | 34133009 |
| 626958 | Oct 4, 2006 | Oct 4, 2006 | BP America Production Company | Harrison 6 #5 | 3,650 | 34133008 |
| 626958Amendment | Oct 4, 2006 | Oct 4, 2006 | BP America Production Company | Harrison 6 #5 | 3,650 | 34133008 |
| 626952 | Oct 3, 2006 | Oct 3, 2006 | BP America Production Company | Ward, J. F. 319 #3 | 3,650 | 34133007 |
| 626730 | Sep 28, 2006 | Sep 28, 2006 | BP America Production Company | Read 'E' 141 #3 | 3,650 | 34133006 |
| 626730Amendment | Sep 28, 2006 | Sep 28, 2006 | BP America Production Company | Read "E" 141 #3 | 3,546 | 34133006 |
| 626730Amendment | Sep 28, 2006 | Sep 28, 2006 | Pantera Energy Company | Read 'E' 141 #3 | 3,546 | 34133006 |
| 626723 | Sep 28, 2006 | Sep 28, 2006 | BP America Production Company | Sweatt 125 #4 | 3,700 | 34133005 |
| 626216 | Sep 27, 2006 | Sep 27, 2006 | Stallion Energy LLC | Phillips, Otis -C- #13 | 3,600 | 34133004 |
| 626216Amendment | Sep 27, 2006 | Sep 27, 2006 | Stallion Energy LLC | Phillips, Otis -C- #13 | 3,600 | 34133004 |
| 626215 | Sep 27, 2006 | Sep 27, 2006 | Stallion Energy LLC | Phillips, Otis -C- #12 | 3,600 | 34133003 |
| 626141 | Sep 19, 2006 | Sep 19, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #50R | 2,700 | 34130055 |
| 625643 | Sep 19, 2006 | Sep 19, 2006 | Fortay Inc. | Crump #3 | 3,500 | 34133002 |
| 626101 | Sep 18, 2006 | Sep 18, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #3R | 2,700 | 34100826 |
| 622027 | Aug 29, 2006 | Aug 29, 2006 | Stallion Energy LLC | Shelton -A- #10R | 1,875 | 34181068 |
| 624249 | Aug 14, 2006 | Aug 14, 2006 | BP America Production Company | Coffee "C" 355 #4 | 3,450 | 34133001 |
| 622747 | Jul 20, 2006 | Jul 20, 2006 | J. W. Resources Inc. | Jane #1 | 3,850 | 34133000 |
| 622746 | Jul 20, 2006 | Jul 20, 2006 | J. W. Resources Inc. | Jane #2 | 3,850 | 34132999 |
| 622745 | Jul 20, 2006 | Jul 20, 2006 | J. W. Resources Inc. | Jane #3 | 3,850 | 34132998 |
| 622744 | Jul 20, 2006 | Jul 20, 2006 | J. W. Resources Inc. | Jane #4 | 3,850 | 34132997 |
| 622743 | Jul 20, 2006 | Jul 20, 2006 | J. W. Resources Inc. | Jane #5 | 3,850 | 34132996 |
| 622742 | Jul 20, 2006 | Jul 20, 2006 | J. W. Resources Inc. | Jane #6 | 3,850 | 34132995 |
| 622742Amendment | Jul 20, 2006 | Jul 20, 2006 | J. W. Resources Inc. | Jane #6 | 3,850 | 34132995 |
| 622647 | Jul 19, 2006 | Jul 19, 2006 | Fortay Inc. | Gordon #3 | 3,750 | 34132992 |
| 622636 | Jul 19, 2006 | Jul 19, 2006 | Fortay Inc. | Gordon #2 | 3,750 | 34132993 |
| 622702 | Jul 18, 2006 | Jul 18, 2006 | Questa Energy Corporation | Herrmann #1 | 3,500 | 34132994 |
| 622702Amendment | Jul 18, 2006 | Jul 18, 2006 | Questa Energy Corporation | Herrmann #1 | 3,500 | 34132994 |
| 621840 | Jul 17, 2006 | Jul 17, 2006 | BP America Production Company | Britain, E. C. #40 | 3,300 | 34132989 |
| 621840Amendment | Jul 17, 2006 | Jul 17, 2006 | BP America Production Company | Britain, E. C. #40 | 3,300 | 34132989 |
| 622373 | Jul 14, 2006 | Jul 14, 2006 | Majestic Oil & Gas, Inc. | Majestic #B 4 | 3,800 | 34132990 |
| 621816 | Jun 29, 2006 | Jun 29, 2006 | BP America Production Company | Barrick C 24 #2 | 3,900 | 34132988 |
| 620573 | Jun 28, 2006 | Jun 28, 2006 | Questa Energy Corporation | Avery #1 | 3,650 | 34132977 |
| 621079 | Jun 21, 2006 | Jun 21, 2006 | Beren Corporation | Masterson Estate #10 | 2,400 | 34100792 |
| 621078 | Jun 21, 2006 | Jun 21, 2006 | Beren Corporation | Masterson Estate #16 | 2,400 | 34100758 |
| 621076 | Jun 21, 2006 | Jun 21, 2006 | Beren Corporation | Masterson #3 | 2,400 | 34100708 |
| 621075 | Jun 21, 2006 | Jun 21, 2006 | Beren Corporation | Masterson Estate #35 | 2,400 | 34100725 |
| 621073 | Jun 21, 2006 | Jun 21, 2006 | Beren Corporation | Masterson Estate #65 | 2,400 | 34132987 |
| 621066 | Jun 21, 2006 | Jun 21, 2006 | Beren Corporation | Masterson, R. B. #3 | 2,400 | 34132986 |
| 621063 | Jun 21, 2006 | Jun 21, 2006 | Beren Corporation | Masterson B #4 | 2,400 | 34132985 |
| 621062 | Jun 21, 2006 | Jun 21, 2006 | Beren Corporation | Masterson B #3 | 2,400 | 34132984 |
| 621061 | Jun 21, 2006 | Jun 21, 2006 | Beren Corporation | Masterson Estate #66 | 2,400 | 34132983 |
| 621060 | Jun 21, 2006 | Jun 21, 2006 | Beren Corporation | Masterson Estate #63 | 2,400 | 34132982 |
| 620574 | Jun 15, 2006 | Jun 15, 2006 | Questa Energy Corporation | Bose #1 | 3,750 | 34132976 |
| 620568 | Jun 15, 2006 | Jun 15, 2006 | Questa Energy Corporation | Denny #1 | 3,750 | 34132975 |
| 620693 | Jun 13, 2006 | Jun 13, 2006 | Pioneer Natural Res. USA, Inc. | Bivins #137R | 3,500 | 34132981 |
| 620659 | Jun 12, 2006 | Jun 12, 2006 | Pioneer Natural Res. USA, Inc. | Killgore #13R | 3,500 | 34132978 |
| 620665 | Jun 8, 2006 | Jun 8, 2006 | Pioneer Natural Res. USA, Inc. | Thompson #24R | 3,500 | 34132980 |
| 620661 | Jun 8, 2006 | Jun 8, 2006 | Pioneer Natural Res. USA, Inc. | Killgore #15R | 3,500 | 34132979 |
| 619935 | Jun 1, 2006 | Jun 1, 2006 | Conocophillips Company | Castleman B #1R | 3,500 | 34132974 |
| 619503 | May 18, 2006 | May 18, 2006 | Travelers Oil Company | Mass #2 | 3,600 | 34132973 |
| 619058 | May 17, 2006 | May 17, 2006 | Conocophillips Company | Stella B #1R | 3,300 | 34132972 |
| 619058Amendment | May 17, 2006 | May 17, 2006 | Conocophillips Company | Stella B #1R | 3,300 | 34132972 |
| 619346 | May 16, 2006 | May 16, 2006 | Pioneer Natural Res. USA, Inc. | Sneed #B 2H | 3,800 | 34101780 |
| 618927 | May 15, 2006 | May 15, 2006 | Mge Resources, Inc. | Rusk #1 | 3,650 | 34132971 |
| 618927Amendment | May 15, 2006 | May 15, 2006 | Mge Resources, Inc. | Rusk #1 | 3,650 | 34132971 |
| 618924 | May 15, 2006 | May 15, 2006 | Mge Resources, Inc. | Johnson, Joy #2 | 3,650 | 34132970 |
| 618475 | May 1, 2006 | May 1, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #M 5H | 3,800 | 34100368 |
| 617854 | Apr 20, 2006 | Apr 20, 2006 | BP America Production Company | Jones, C. R. 166 #3 | 3,450 | 34132969 |
| 617848 | Apr 20, 2006 | Apr 20, 2006 | BP America Production Company | Jones, C. R. -C- 170 #2 | 3,650 | 34132968 |
| 617645 | Apr 20, 2006 | Apr 20, 2006 | Fortay Inc. | Gordon #1 | 3,750 | 34132965 |
| 617433 | Apr 20, 2006 | Apr 20, 2006 | Fortay Inc. | Julie #1 | 3,750 | 34132964 |
| 617350 | Apr 18, 2006 | Apr 18, 2006 | W.B.D. Oil and Gas Inc. | Lynch South #5 | 3,600 | 34132966 |
| 617353 | Apr 17, 2006 | Apr 17, 2006 | W.B.D. Oil and Gas Inc. | Kristen #3 | 2,500 | 34132962 |
| 617352 | Apr 17, 2006 | Apr 17, 2006 | W.B.D. Oil and Gas Inc. | Kristen #2 | 2,500 | 34132961 |
| 617351 | Apr 17, 2006 | Apr 17, 2006 | W.B.D. Oil and Gas Inc. | Lethen, E.F. #8 | 3,600 | 34132963 |
| 617360 | Apr 11, 2006 | Apr 11, 2006 | BP America Production Company | Bates 284 #2 | 3,850 | 34132960 |
| 615966 | Mar 17, 2006 | Mar 17, 2006 | BP America Production Company | Brumley -B- 398 #3 | 3,500 | 34132959 |
| 615054 | Mar 1, 2006 | Mar 1, 2006 | Fortay Inc. | Jansyn #8 | 3,750 | 34132958 |
| 614810 | Feb 24, 2006 | Feb 24, 2006 | Stallion Energy LLC | Shelton -A- #3XH | 3,000 | 34130006 |
| 612787 | Jan 26, 2006 | Jan 26, 2006 | J. W. Resources Inc. | Roy #4 | 3,850 | 34132957 |
| 612786 | Jan 26, 2006 | Jan 26, 2006 | J. W. Resources Inc. | Roy #3 | 3,850 | 34132956 |
| 612618 | Jan 19, 2006 | Jan 19, 2006 | Pantera Energy Company | Ruth #1 | 3,900 | 34132954 |
| 612608 | Jan 19, 2006 | Jan 19, 2006 | Travelers Oil Company | Marvin #2 | 3,250 | 34132953 |
| 612607 | Jan 19, 2006 | Jan 19, 2006 | Travelers Oil Company | Thaten #2 | 3,700 | 34132955 |
| 612246 | Jan 12, 2006 | Jan 12, 2006 | Travelers Oil Company | Dale #2 | 3,750 | 34132952 |
| 611922 | Jan 12, 2006 | Jan 12, 2006 | Pioneer Natural Res. USA, Inc. | Bivins #A 77H | 3,800 | 34100782 |
| 612167 | Jan 11, 2006 | Jan 11, 2006 | Pioneer Natural Res. USA, Inc. | Bivins #A202H | 3,800 | 34132463 |
| 611633 | Dec 30, 2005 | Dec 30, 2005 | Fortay Inc. | Jansyn #7 | 3,750 | 34132951 |
| 611623 | Dec 30, 2005 | Dec 30, 2005 | J. W. Resources Inc. | Roy #2 | 3,850 | 34132950 |
| 611622 | Dec 30, 2005 | Dec 30, 2005 | J. W. Resources Inc. | Roy #1 | 3,850 | 34132949 |
| 611199 | Dec 21, 2005 | Dec 21, 2005 | Megg, L.P. | Booth, Lucille #2 | 3,400 | 34132948 |
| 609055 | Dec 1, 2005 | Dec 1, 2005 | W.B.D. Oil and Gas Inc. | DW5 #2 | 2,350 | 34131028 |
| 607405 | Oct 6, 2005 | Oct 6, 2005 | Conocophillips Company | Harrison #1R | 3,500 | 34132947 |
| 607224 | Oct 3, 2005 | Oct 3, 2005 | Taylor, Gordon Oil Company, LP | Dorothy #1 | 3,200 | 34132946 |
| 606855 | Sep 28, 2005 | Sep 28, 2005 | Makoil, Inc. | Harris-Ladd #11NP | 3,750 | 34132002 |
| 606856 | Sep 26, 2005 | Sep 26, 2005 | Makoil, Inc. | Harris-Ladd #1NP | 3,750 | 34130819 |
| 606854 | Sep 26, 2005 | Sep 26, 2005 | Makoil, Inc. | Harris-Ladd #15NP | 3,750 | 34131765 |
| 606703 | Sep 21, 2005 | Sep 21, 2005 | Gould Oil Inc. | Masterson #7416 | 2,350 | 34132945 |
| 605605 | Aug 30, 2005 | Aug 30, 2005 | W.B.D. Oil and Gas Inc. | Kristen #1 | 2,350 | 34131008 |
| 605537 | Aug 26, 2005 | Aug 26, 2005 | Fortay Inc. | Jansyn #6 | 3,750 | 34132944 |