| 647965 | Oct 29, 2007 | Oct 29, 2007 | Nadel and Gussman, L.L.C. | Big Oak #1 | 10,800 | 31530927 |
| 647257 | Oct 9, 2007 | Oct 9, 2007 | Rusk Energy Management, LLC | G. Beaird #2 | 10,000 | 31530940 |
| 642106 | Jul 18, 2007 | Jul 18, 2007 | Ark-La-Tex Energy, L.L.C. | Wilson #1 | 11,300 | 31530939 |
| 641837 | Jul 16, 2007 | Jul 16, 2007 | Chalker Energy Management Ii,llc | Karnack-State #1 | 11,500 | 31530938 |
| 639237 | May 23, 2007 | May 23, 2007 | XTO Energy Inc. | Chatten Gas Unit #1 | 11,200 | 31530937 |
| 636058 | Apr 3, 2007 | Apr 3, 2007 | Lotex Exploration & Prod. Co. | Hicks Oil Unit No. 1 #1 | 6,300 | 31530936 |
| 635698 | Mar 29, 2007 | Mar 29, 2007 | Nadel and Gussman, L.L.C. | Cromer #10 | 9,100 | 31530935 |
| 633614 | Feb 20, 2007 | Feb 20, 2007 | Chalker Energy Management Ii,llc | Newman #1 | 11,000 | 31530934 |
| 633141 | Feb 9, 2007 | Feb 9, 2007 | Apache Corporation | Schmitt Gas Unit #2 | 9,000 | 31530933 |
| 632513 | Jan 29, 2007 | Jan 29, 2007 | Nadel and Gussman, L.L.C. | Eidson Gas Unit #2 | 11,200 | 31530932 |
| 627874 | Oct 23, 2006 | Oct 23, 2006 | Pegasi Energy Resources Corp | Childers #1 | 8,500 | 31530903 |
| 626444 | Sep 25, 2006 | Sep 25, 2006 | Nadel and Gussman, L.L.C. | Walker, Anna T. #2 | 5,795 | 31500279 |
| 626109 | Sep 22, 2006 | Sep 22, 2006 | Encana Oil & Gas(usa) Inc. | Waldrop "A" #1 | 10,735 | 31530766 |
| 625323 | Sep 8, 2006 | Sep 8, 2006 | Fair Oil, Ltd. | Grogan-Veach Unit #1 | 6,577 | 31530547 |
| 624426 | Aug 16, 2006 | Aug 16, 2006 | Stroud Petroleum, Inc. | Wade #2 | 11,000 | 31530931 |
| 621024 | Jun 27, 2006 | Jun 27, 2006 | C. W. Resources, Inc. | Green Fox Deep GU 2 #1 | 10,000 | 31530930 |
| 620900 | Jun 13, 2006 | Jun 13, 2006 | Nadel and Gussman, L.L.C. | Sherrill #1 | 7,200 | 31530929 |
| 620166 | Jun 5, 2006 | Jun 5, 2006 | Lodi Drilling & Service Co. | Kildare East Gloyd Unit #2501 | 6,147 | 31500452 |
| 619354 | Jun 2, 2006 | Jun 2, 2006 | Nadel and Gussman, L.L.C. | Big Oak #1 | 10,800 | 31530927 |
| 619621 | May 25, 2006 | May 25, 2006 | C. W. Resources, Inc. | Littleton Lake #1HH | 13,500 | 31530928 |
| 619621Amendment | May 25, 2006 | May 25, 2006 | C. W. Resources, Inc. | Littleton Lake #1HH | 13,500 | 31530928 |
| 616032 | Mar 23, 2006 | Mar 23, 2006 | Burk Royalty Co., Ltd. | Felker #2 | 11,275 | 31530884 |
| 615718 | Mar 16, 2006 | Mar 16, 2006 | Devon Energy Production Co, L.P. | Oliver Unit #3 | 11,500 | 31530926 |
| 613353 | Feb 6, 2006 | Feb 6, 2006 | Devon Energy Production Co, L.P. | Simpson Family Shallow Gas Unit #1 L | 11,010 | 31530819 |
| 613106 | Jan 31, 2006 | Jan 31, 2006 | Devon Energy Production Co, L.P. | Simpson Family #4 | 11,500 | 31530925 |
| 613106Amendment | Jan 31, 2006 | Jan 31, 2006 | Devon Energy Production Co, L.P. | Simpson Family #4 | 11,500 | 31530925 |
| 612418 | Jan 23, 2006 | Jan 23, 2006 | Nadel and Gussman, L.L.C. | Strom, A. et Al #1 | 10,653 | 31530575 |
| 612209 | Jan 11, 2006 | Jan 11, 2006 | Cook Exploration Co. | Mackey, Wesley #1 | 6,700 | 31530924 |
| 609569 | Dec 7, 2005 | Dec 7, 2005 | Gasper Rice Resources, Ltd. | Van Dusen Gas Unit #2 | 7,200 | 31530923 |
| 607159 | Oct 25, 2005 | Oct 25, 2005 | Nadel and Gussman, L.L.C. | Wakefield #2 | 8,600 | 31530911 |
| 607009 | Sep 28, 2005 | Sep 28, 2005 | Devon Energy Production Co, L.P. | Annie D. Kelsey Gas Unit #7 | 10,000 | 31530922 |
| 606985 | Sep 28, 2005 | Sep 28, 2005 | Devon Energy Production Co, L.P. | J. A. Neal Unit #6 | 10,000 | 31530921 |
| 606920 | Sep 26, 2005 | Sep 26, 2005 | Pegasi Energy Resources Corp | Harris #2 | 10,000 | 31530920 |
| 606694 | Sep 21, 2005 | Sep 21, 2005 | Brooks Petroleum Company | Klabzuba #1 | 11,000 | 31530892 |
| 606694Amendment | Sep 21, 2005 | Sep 21, 2005 | Brooks Petroleum Company | Klabzuba #1 | 11,500 | 31530892 |
| 605342 | Aug 23, 2005 | Aug 23, 2005 | Pegasi Energy Resources Corp | Huntington #3 | 8,500 | 31530549 |
| 603882 | Aug 19, 2005 | Aug 19, 2005 | Nadel and Gussman, L.L.C. | Cromer #8 | 8,800 | 31530901 |
| 601314 | Jul 13, 2005 | Jul 13, 2005 | Redman Operating Company | J. P. Fant Heirs #1 | 12,000 | 31530917 |
| 602826 | Jul 1, 2005 | Jul 1, 2005 | C. W. Resources, Inc. | Green Fox Deep #1 | 10,200 | 31530919 |
| 602826Amendment | Jul 1, 2005 | Jul 1, 2005 | C. W. Resources, Inc. | Green Fox Deep #1 | 10,200 | 31530919 |
| 602116 | Jun 15, 2005 | Jun 15, 2005 | Pegasi Energy Resources Corp | Whitfield, W. #1 | 10,310 | 31530573 |
| 601737 | Jun 7, 2005 | Jun 7, 2005 | Cook Exploration Co. | Moseley, Carrie #1 | 6,500 | 31530918 |
| 561209Amendment | May 31, 2005 | May 31, 2005 | Kraker & Martin Energy, L.L.C. | Bradey, K. #2 | 11,000 | 31530916 |
| 560383 | Apr 25, 2005 | Apr 25, 2005 | Pegasi Energy Resources Corp | Walker #4 | 7,500 | 31530784 |
| 560487 | Apr 14, 2005 | Apr 14, 2005 | Southwestern Energy Prod. Co. | Brevard #1 | 11,550 | 31530915 |
| 560487Amendment | Apr 14, 2005 | Apr 14, 2005 | Southwestern Energy Prod. Co. | J. M. Watts Gas Unit 1 #1 | 11,550 | 31530915 |
| 559543 | Mar 25, 2005 | Mar 25, 2005 | Nadel and Gussman, L.L.C. | Cromer #9 | 8,800 | 31530914 |
| 559543Amendment | Mar 25, 2005 | Mar 25, 2005 | Nadel and Gussman, L.L.C. | Cromer #9 | 8,800 | 31530914 |
| 557001 | Feb 11, 2005 | Feb 11, 2005 | Nadel and Gussman, L.L.C. | Strom, A. et Al #1 | 10,653 | 31530575 |
| 557000 | Feb 3, 2005 | Feb 3, 2005 | Nadel and Gussman, L.L.C. | Johnson, C. Wallace et Al #1 | 11,419 | 31530099 |
| 556345 | Jan 18, 2005 | Jan 18, 2005 | Pegasi Energy Resources Corp | Huntington #2 HH | 6,500 | 31530913 |
| 552204 | Dec 13, 2004 | Dec 13, 2004 | Nadel and Gussman, L.L.C. | Wakefield #2 | 8,600 | 31530911 |
| 552204Amendment | Dec 13, 2004 | Dec 13, 2004 | Nadel and Gussman, L.L.C. | Wakefield #2 | 8,600 | 31530911 |
| 554498 | Dec 7, 2004 | Dec 7, 2004 | Kraker & Martin Energy, L.L.C. | Bradley, K. #1 | 12,500 | 31530912 |
| 554498Amendment | Dec 7, 2004 | Dec 7, 2004 | Kraker & Martin Energy, L.L.C. | Bradley, K. #1 | 12,500 | 31530912 |
| 552263 | Oct 13, 2004 | Oct 13, 2004 | Prime Natural Resources Inc | Owens #1 | 11,600 | 31530910 |
| 550802 | Sep 14, 2004 | Sep 14, 2004 | Devon Energy Production Co, L.P. | Oliver Unit #2 | 12,500 | 31530909 |
| 549827 | Aug 26, 2004 | Aug 26, 2004 | Nadel and Gussman, L.L.C. | Cromer #4 | 6,845 | 31530523 |
| 549826 | Aug 20, 2004 | Aug 20, 2004 | Nadel and Gussman, L.L.C. | Cromer #8 | 8,800 | 31530901 |
| 549118 | Aug 4, 2004 | Aug 4, 2004 | Cook Exploration Co. | Cowherd #1 | 6,950 | 31530908 |
| 549118Amendment | Aug 4, 2004 | Aug 4, 2004 | Cook Exploration Co. | Cowherd #1 | 6,950 | 31530908 |
| 545523 | May 10, 2004 | May 10, 2004 | Prime Natural Resources Inc | Connor, W.T. #2 | 12,000 | 31530907 |
| 543973 | Apr 8, 2004 | Apr 8, 2004 | Prime Natural Resources Inc | Witt Brothers #4 | 12,000 | 31530906 |
| 542017 | Feb 13, 2004 | Feb 13, 2004 | Pegasi Energy Resources Corp | Harris #1 | 8,500 | 31530905 |
| 542017Amendment | Feb 13, 2004 | Feb 13, 2004 | Pegasi Energy Resources Corp | Harris #1 | 8,500 | 31530905 |
| 541024 | Jan 21, 2004 | Jan 21, 2004 | Prime Natural Resources Inc | Witt Brothers #3 | 12,000 | 31530904 |
| 541024Amendment | Jan 21, 2004 | Jan 21, 2004 | Prime Natural Resources Inc | Witt Brothers #3 | 12,000 | 31530904 |
| 540946 | Jan 20, 2004 | Jan 20, 2004 | Pegasi Energy Resources Corp | Childers #1 | 8,500 | 31530903 |
| 540003 | Dec 22, 2003 | Dec 22, 2003 | Prime Natural Resources Inc | Bradley #1 | 12,000 | 31530902 |
| 540003Amendment | Dec 22, 2003 | Dec 22, 2003 | Burk Royalty Co., Ltd. | Bradley #1 | 11,465 | 31530902 |
| 537723 | Dec 19, 2003 | Dec 19, 2003 | Devon Energy Operating Co., L.P. | Billingsly Estate #1 | 11,500 | 31530900 |
| 539666 | Dec 18, 2003 | Dec 18, 2003 | Nadel and Gussman, L.L.C. | Cromer #8 | 8,800 | 31530901 |
| 537075 | Oct 8, 2003 | Oct 8, 2003 | Nadel and Gussman, L.L.C. | Cromer, Alma Preston #2 | 7,207 | 31500276 |
| 536990 | Oct 2, 2003 | Oct 2, 2003 | Devon Energy Operating Co., L.P. | Oliver Unit #1 | 11,500 | 31530899 |
| 536617 | Sep 24, 2003 | Sep 24, 2003 | Prime Natural Resources, Inc. | Felker #3 | 11,500 | 31530898 |
| 536176 | Sep 16, 2003 | Sep 16, 2003 | Nadel and Gussman, L.L.C. | Cromer, Alma P. #3 | 8,700 | 31500277 |
| 536417 | Sep 15, 2003 | Sep 15, 2003 | Phillips Energy, Inc. | Dusen, Van #1 | 7,200 | 31530897 |
| 536417Amendment | Sep 15, 2003 | Sep 15, 2003 | Phillips Energy, Inc. | Dusen, Van #1 | 7,200 | 31530897 |
| 534280 | Jul 31, 2003 | Jul 31, 2003 | Prime Natural Resources Inc | Tyler #1 | 11,200 | 31530896 |
| 534280Amendment | Jul 31, 2003 | Jul 31, 2003 | Burk Royalty Co., Ltd. | Tyler Gas Unit #1 | 11,240 | 31530896 |
| 532924 | Jun 30, 2003 | Jun 30, 2003 | Burk Royalty Co., Ltd. | King, O. P. #3 | 11,900 | 31530895 |
| 532924Amendment | Jun 30, 2003 | Jun 30, 2003 | Burk Royalty Co., Ltd. | King, O. P. #3 | 11,900 | 31530895 |
| 532915 | Jun 11, 2003 | Jun 11, 2003 | Camterra Resources, Inc. | Templeton A #1 | 11,500 | 31530894 |
| 531308 | May 6, 2003 | May 6, 2003 | Prime Natural Resources Inc | Torrans Unit No. 4 #1 | 11,800 | 31530893 |
| 530626 | Apr 16, 2003 | Apr 16, 2003 | C. W. Resources, Inc. | Klabzuba #1 | 9,000 | 31530892 |
| 530569 | Apr 10, 2003 | Apr 10, 2003 | KCS Resources, Inc. | Thorsell GU #2 | 11,600 | 31530891 |
| 529849 | Apr 7, 2003 | Apr 7, 2003 | Nadel & Gussman | Cromer #6 | 8,500 | 31530888 |
| 530035 | Apr 1, 2003 | Apr 1, 2003 | Prime Natural Resources Inc | Torrans Unit No. 3 #1 | 11,500 | 31530889 |
| 530034 | Apr 1, 2003 | Apr 1, 2003 | Prime Natural Resources Inc | Torrans Unit No. 2 #1 | 11,500 | 31530890 |
| 527874 | Feb 3, 2003 | Feb 3, 2003 | Nadel & Gussman | Braden #4 | 6,620 | 31530546 |
| 527272 | Jan 17, 2003 | Jan 17, 2003 | Nadel & Gussman | Cromer #5 | 7,550 | 31530810 |
| 525750 | Nov 22, 2002 | Nov 22, 2002 | Prime Natural Resources Inc | Torrans #1 | 11,500 | 31530887 |
| 525746 | Nov 22, 2002 | Nov 22, 2002 | Prime Natural Resources Inc | Schmitt #1 | 12,000 | 31530770 |
| 525254 | Nov 5, 2002 | Nov 5, 2002 | Spartan Operating Company, Inc. | Huntington #1 | 11,000 | 31530886 |
| 525254Amendment | Nov 5, 2002 | Nov 5, 2002 | Spartan Operating Company, Inc. | Huntington #1 | 10,555 | 31530886 |
| 523559 | Sep 24, 2002 | Sep 24, 2002 | WSF, Inc. | Gray #1 | 6,800 | 31530885 |
| 523768 | Sep 18, 2002 | Sep 18, 2002 | Prime Natural Resources Inc | Felker #2 | 11,500 | 31530884 |
| 522745 | Aug 14, 2002 | Aug 14, 2002 | Camterra Resources, Inc. | Wade #1 | 11,500 | 31530883 |
| 522745Amendment | Aug 14, 2002 | Aug 14, 2002 | Camterra Resources, Inc. | Wade #1 | 11,275 | 31530883 |
| 522273 | Jul 29, 2002 | Jul 29, 2002 | Prime Natural Resources Inc | Witt Brothers #2 | 12,000 | 31530882 |