| 648382 | Oct 31, 2007 | Oct 31, 2007 | Cabot Oil & Gas Corporation | W.G. McCampbell Heirs #1 | 14,000 | 00730895 |
| 645430 | Sep 24, 2007 | Sep 24, 2007 | Live Oak Reserves, Inc. | Copano Bay State #79 | 5,098 | 00730739 |
| 646160 | Sep 19, 2007 | Sep 19, 2007 | Cabot Oil & Gas Corporation | Gibson & Sien #7 | 13,000 | 00730894 |
| 644330 | Aug 17, 2007 | Aug 17, 2007 | Cabot Oil & Gas Corporation | Gibson & Sein #5 | 14,300 | 00730893 |
| 644330Amendment | Aug 17, 2007 | Aug 17, 2007 | Cabot Oil & Gas Corporation | Gibson & Sein #5 | 14,300 | 00730893 |
| 644330Amendment | Aug 17, 2007 | Aug 17, 2007 | Cabot Oil & Gas Corporation | Gibson & Sien #5 | 14,300 | 00730893 |
| 643103 | Aug 2, 2007 | Aug 2, 2007 | Hughes, Dan A. Company, L.P. | Houston Endowment #1 | 16,500 | 00730892 |
| 643103Amendment | Aug 2, 2007 | Aug 2, 2007 | Hughes, Dan A. Company, L.P. | Houston Endowment #1ST | 16,500 | 00730892 |
| 640639 | Jun 22, 2007 | Jun 22, 2007 | Cabot Oil & Gas Corporation | Gibson & Sien "D" Unit #6 | 14,000 | 00730891 |
| 640639Amendment | Jun 22, 2007 | Jun 22, 2007 | Cabot Oil & Gas Corporation | Gibson & Sien "D" Unit #6 | 14,000 | 00730891 |
| 640066 | Jun 13, 2007 | Jun 13, 2007 | Carrizo Oil & Gas, Inc. | Houston Endowment Inc #1 | 9,800 | 00730890 |
| 639631 | Jun 1, 2007 | Jun 1, 2007 | T - C Oil Company | Ocker #1 | 9,000 | 00730889 |
| 637594 | May 1, 2007 | May 1, 2007 | Carrizo Oil & Gas, Inc. | State Tract 116 #1 | 11,000 | 00730888 |
| 637594Amendment | May 1, 2007 | May 1, 2007 | Carrizo Oil & Gas, Inc. | State Tract 116 #1ST | 11,000 | 00730888 |
| 636623 | Apr 13, 2007 | Apr 13, 2007 | Cabot Oil & Gas Corporation | McCampbell Trust, et al "B" GU #1 | 14,300 | 00730887 |
| 636623Amendment | Apr 13, 2007 | Apr 13, 2007 | Cabot Oil & Gas Corporation | Grant "A" #14 | 14,300 | 00730887 |
| 636360 | Apr 13, 2007 | Apr 13, 2007 | Cabot Oil & Gas Corporation | Flinn, et al Unit #1 | 11,400 | 00730886 |
| 636360Amendment | Apr 13, 2007 | Apr 13, 2007 | Cabot Oil & Gas Corporation | Flinn, et al Unit #1 | 11,400 | 00730886 |
| 636173 | Apr 4, 2007 | Apr 4, 2007 | T - C Oil Company | Cavasso Creek-A- #1 H | 10,000 | 00730872 |
| 633560 | Feb 16, 2007 | Feb 16, 2007 | Cabot Oil & Gas Corporation | McCampbell Trust, et al, "A" #1 | 12,300 | 00730885 |
| 632693 | Feb 16, 2007 | Feb 16, 2007 | Omega Energy Corp. | Fulton Beach/C Sand/Unit #4 | 8,996 | 00700262 |
| 632567 | Jan 30, 2007 | Jan 30, 2007 | T - C Oil Company | Cavasso Creek -C- #1 | 10,000 | 00730884 |
| 632425 | Jan 30, 2007 | Jan 30, 2007 | T - C Oil Company | Cavasso Creek -D- #1 | 10,000 | 00730883 |
| 631739 | Jan 11, 2007 | Jan 11, 2007 | Cabot Oil & Gas Corporation | Grant "D" #8 | 12,500 | 00730882 |
| 631739Amendment | Jan 11, 2007 | Jan 11, 2007 | Cabot Oil & Gas Corporation | Grant "D" #8 | 12,500 | 00730882 |
| 631574 | Jan 11, 2007 | Jan 11, 2007 | EOG Resources, Inc. | Nine Mile Point Field Cons. #22 | 14,000 | 00730881 |
| 629162 | Nov 17, 2006 | Nov 17, 2006 | EOG Resources, Inc. | State Tract 142 #1 | 13,000 | 00730880 |
| 628068 | Oct 25, 2006 | Oct 25, 2006 | Cabot Oil & Gas Corporation | Davis Gas Unit #3 | 11,700 | 00730878 |
| 627654 | Oct 17, 2006 | Oct 17, 2006 | Cabot Oil & Gas Corporation | Davis Gas Unit #5 | 12,400 | 00730877 |
| 626544 | Oct 4, 2006 | Oct 4, 2006 | Wallis Energy, Inc. | Fulton Beach #4 | 5,508 | 00730834 |
| 626130 | Sep 26, 2006 | Sep 26, 2006 | Live Oak/Operations, Inc. | Copano Bay State #16L | 6,506 | 00700205 |
| 626130Amendment | Sep 26, 2006 | Sep 26, 2006 | Live Oak/Operations, Inc. | Copano Bay State #16L | 6,506 | 00700205 |
| 625561 | Sep 7, 2006 | Sep 7, 2006 | Cabot Oil & Gas Corporation | Davis #4 | 6,000 | 00730876 |
| 624624 | Aug 21, 2006 | Aug 21, 2006 | Cabot Oil & Gas Corporation | Grant "A" #12 | 12,000 | 00730875 |
| 624544 | Aug 17, 2006 | Aug 17, 2006 | Cabot Oil & Gas Corporation | Grant "B" #13 | 10,000 | 00730853 |
| 624029 | Aug 8, 2006 | Aug 8, 2006 | EOG Resources, Inc. | Nine Point Field Cons. Unit #21 | 13,500 | 00730874 |
| 624029Amendment | Aug 8, 2006 | Aug 8, 2006 | EOG Resources, Inc. | Nine Mile Point Field Cons. #21 | 13,500 | 00730874 |
| 623762 | Aug 3, 2006 | Aug 3, 2006 | Cabot Oil & Gas Corporation | Roark #1 | 9,000 | 00730866 |
| 622343 | Jul 11, 2006 | Jul 11, 2006 | T - C Oil Company | Cavasso Creek -B- #1 | 10,000 | 00730873 |
| 622233 | Jul 10, 2006 | Jul 10, 2006 | T - C Oil Company | Cavasso Creek -A- #1 | 10,000 | 00730872 |
| 621593 | Jun 27, 2006 | Jun 27, 2006 | Cabot Oil & Gas Corporation | Davis Gas Unit #2 | 12,180 | 00730871 |
| 616964 | Apr 4, 2006 | Apr 4, 2006 | Live Oak Reserves, Inc. | Copano Bay State #79 | 6,390 | 00730739 |
| 616964Amendment | Apr 4, 2006 | Apr 4, 2006 | Live Oak Reserves, Inc. | Copano Bay State #79 | 6,390 | 00730739 |
| 615823 | Mar 14, 2006 | Mar 14, 2006 | Cabot Oil & Gas Corporation | Grant "A" #9 | 12,300 | 00730870 |
| 615823Amendment | Mar 14, 2006 | Mar 14, 2006 | Cabot Oil & Gas Corporation | Grant "A" #9 | 12,300 | 00730870 |
| 615307 | Mar 7, 2006 | Mar 7, 2006 | Cabot Oil & Gas Corporation | Grant "A" #10 | 12,100 | 00730869 |
| 614896 | Feb 27, 2006 | Feb 27, 2006 | Excalibur E & P, LLC | Rouquette, Zeph #1 | 10,800 | 00730827 |
| 613084 | Jan 26, 2006 | Jan 26, 2006 | Cabot Oil & Gas Corporation | Grant 'A' #7 | 12,700 | 00730868 |
| 612912 | Jan 24, 2006 | Jan 24, 2006 | Cabot Oil & Gas Corporation | Grant "A" #4 | 12,623 | 00730856 |
| 609492 | Nov 21, 2005 | Nov 21, 2005 | Lamar Oil & Gas, Inc. | State Tract 81-82 Unit #2 | 9,800 | 00730758 |
| 608861 | Nov 3, 2005 | Nov 3, 2005 | EOG Resources, Inc. | Nine Mile Point Field Cons. Unit #17ST | 12,300 | 00730815 |
| 606344 | Sep 14, 2005 | Sep 14, 2005 | Kebo Oil & Gas, Inc. | Rockport #2 | 9,000 | 00730867 |
| 606116 | Sep 9, 2005 | Sep 9, 2005 | Tema Oil and Gas Company | Conn Brown-State B - G Sand Unit #2781A | 9,795 | 00730812 |
| 557582 | Feb 11, 2005 | Feb 11, 2005 | Walter Oil & Gas Corporation | Roark #1 | 9,000 | 00730866 |
| 557582Amendment | Feb 11, 2005 | Feb 11, 2005 | Cabot Oil & Gas Corporation | Roark #1 | 9,000 | 00730866 |
| 552767 | Oct 25, 2004 | Oct 25, 2004 | Kebo Oil & Gas, Inc. | Rockport #1 | 9,000 | 00730865 |
| 552767Amendment | Oct 25, 2004 | Oct 25, 2004 | Kebo Oil & Gas, Inc. | Rockport #1 | 9,000 | 00730865 |
| 548332 | Jul 16, 2004 | Jul 16, 2004 | Tema Oil and Gas Company | State Tract 278B #2 | 9,995 | 00730811 |
| 548331 | Jul 16, 2004 | Jul 16, 2004 | Tema Oil and Gas Company | State Tract 279 #1 | 8,300 | 00730793 |
| 547606 | Jun 30, 2004 | Jun 30, 2004 | Apex Oil & Gas, Inc. | State Tract 18 #1 | 15,000 | 00730864 |
| 546778 | Jun 10, 2004 | Jun 10, 2004 | Gruy Petroleum Management Co. | State Tract 96 #7 | 8,105 | 00700827 |
| 546054 | May 24, 2004 | May 24, 2004 | Cabot Oil & Gas Corporation | State Tract 281 #1 | 11,050 | 00730863 |
| 543156 | Mar 12, 2004 | Mar 12, 2004 | Cabot Oil & Gas Corporation | State Tract 282 #1 | 11,500 | 00730862 |
| 543156Amendment | Mar 12, 2004 | Mar 12, 2004 | Tema Oil and Gas Company | Conn-Brown-State-G Sand Unit #2821 | 11,500 | 00730862 |
| 541605 | Feb 3, 2004 | Feb 3, 2004 | Cabot Oil & Gas Corporation | Burke #1 | 13,000 | 00730861 |
| 541605Amendment | Feb 3, 2004 | Feb 3, 2004 | Cabot Oil & Gas Corporation | Burke #1 | 13,000 | 00730861 |
| 534681 | Nov 3, 2003 | Nov 3, 2003 | Lamar Oil & Gas, Inc. | State Tract 121 #4 | 5,652 | 00700358 |
| 535953 | Sep 10, 2003 | Sep 10, 2003 | Lamar Oil & Gas, Inc. | State Tract 125 #1 | 11,338 | 00730592 |
| 533299 | Jun 18, 2003 | Jun 18, 2003 | Whiting Petroleum Corporation | Newberry Unit #1 | 7,580 | 00730780 |
| 527967 | Feb 3, 2003 | Feb 3, 2003 | Walter Oil & Gas Corporation | Grant "A" #1 | 11,401 | 00730848 |
| 527966 | Feb 3, 2003 | Feb 3, 2003 | Walter Oil & Gas Corporation | Gibson/Sien C #4 | 12,000 | 00730860 |
| 527966Amendment | Feb 3, 2003 | Feb 3, 2003 | Walter Oil & Gas Corporation | Gibson-Sien "C" #4 | 11,766 | 00730860 |
| 523719 | Sep 18, 2002 | Sep 18, 2002 | Lamar Oil & Gas, Inc. | State Tract 157 #1 | 13,000 | 00730845 |
| 522669 | Aug 9, 2002 | Aug 9, 2002 | Live Oak Reserves, Inc. | Copano Bay State #79 | 7,940 | 00730739 |
| 520794 | Jun 7, 2002 | Jun 7, 2002 | Walter Oil & Gas Corporation | Grant "D" #6 | 12,500 | 00730859 |
| 520794Amendment | Jun 7, 2002 | Jun 7, 2002 | Walter Oil & Gas Corporation | Grant "D" #6ST | 11,500 | 00730859 |
| 520129 | May 17, 2002 | May 17, 2002 | Walter Oil & Gas Corporation | Gibson/Sien Unit "B" #3 | 12,000 | 00730858 |
| 520129Amendment | May 17, 2002 | May 17, 2002 | Walter Oil & Gas Corporation | Gibson-Sien Unit "B" #3 | 12,500 | 00730858 |
| 519234 | Apr 18, 2002 | Apr 18, 2002 | Walter Oil & Gas Corporation | Davis #1 | 11,400 | 00730851 |
| 519234Amendment | Apr 18, 2002 | Apr 18, 2002 | Walter Oil & Gas Corporation | Davis #1 | 11,400 | 00730851 |
| 519233 | Apr 18, 2002 | Apr 18, 2002 | Walter Oil & Gas Corporation | Grant "A" #5 | 12,000 | 00730857 |
| 519233Amendment | Apr 18, 2002 | Apr 18, 2002 | Walter Oil & Gas Corporation | Grant "A" #5 | 12,000 | 00730857 |
| 518414 | Mar 19, 2002 | Mar 19, 2002 | Camden Reserves, Inc. | State Tract 84 #1 | 8,300 | 00730611 |
| 518218 | Mar 11, 2002 | Mar 11, 2002 | Walter Oil & Gas Corporation | Grant "A" #4 | 12,500 | 00730856 |
| 517627 | Feb 14, 2002 | Feb 14, 2002 | United Oil & Minerals L. P. | State Tract 138 #1 | 9,500 | 00730855 |
| 517626 | Feb 14, 2002 | Feb 14, 2002 | United Oil & Minerals L. P. | State Tract 163 #1 | 9,500 | 00730854 |
| 517626Amendment | Feb 14, 2002 | Feb 14, 2002 | Walter Oil & Gas Corporation | State Tract 163 #1 | 9,500 | 00730854 |
| 517119 | Jan 25, 2002 | Jan 25, 2002 | Walter Oil & Gas Corporation | Grant #2B | 11,193 | 00730849 |
| 516945 | Jan 18, 2002 | Jan 18, 2002 | Walter Oil & Gas Corporation | Hildebrand #1 | 12,000 | 00730853 |
| 516945Amendment | Jan 18, 2002 | Jan 18, 2002 | Walter Oil & Gas Corporation | Hildebrand #1 | 11,501 | 00730853 |
| 515898 | Dec 6, 2001 | Dec 6, 2001 | Walter Oil & Gas Corporation | Grant #3A | 11,000 | 00730852 |
| 515898Amendment | Dec 6, 2001 | Dec 6, 2001 | Walter Oil & Gas Corporation | Grant #3A | 9,980 | 00730852 |
| 515255 | Nov 9, 2001 | Nov 9, 2001 | Walter Oil & Gas Corporation | Davis #1 | 12,000 | 00730851 |
| 515255Amendment | Nov 9, 2001 | Nov 9, 2001 | Walter Oil & Gas Corporation | Davis #1 | 11,490 | 00730851 |
| 511616 | Aug 1, 2001 | Aug 1, 2001 | Samson Lone Star LP | Bailey, Travis A #3 | 9,345 | 00700503 |
| 511492 | Jul 16, 2001 | Jul 16, 2001 | Cabot Oil & Gas Corporation | State Tract 228 #1 | 10,000 | 00730850 |
| 511492Amendment | Jul 16, 2001 | Jul 16, 2001 | Cabot Oil & Gas Corporation | State Tract 228 #1 | 10,000 | 00730850 |
| 508572 | Jun 28, 2001 | Jun 28, 2001 | Magnum Producing & Operating Co. | Brown, Polly et Al #1 | 8,230 | 00720038 |
| 508314 | Apr 27, 2001 | Apr 27, 2001 | Walter Oil & Gas Corporation | Grant "A" #1 | 11,962 | 00730848 |
| 508314Amendment | Apr 27, 2001 | Apr 27, 2001 | Walter Oil & Gas Corporation | Grant "A" #1 | 11,401 | 00730848 |