| 645481Amendment | Sep 6, 2007 | Sep 6, 2007 | Diamondback Operating, LP | Jenkins #6203 | 3,000 | 13731926 |
| 645405 | Sep 6, 2007 | Sep 6, 2007 | Chesapeake Operating, Inc. | Cmajdalka 62 #2 | 10,000 | 13731923 |
| 645405Amendment | Sep 6, 2007 | Sep 6, 2007 | Chesapeake Operating, Inc. | Cmajdalka 62 #2HH | 10,000 | 13731923 |
| 645457 | Sep 5, 2007 | Sep 5, 2007 | Megawest Energy Texas Corp. | Morriss, Patti Beall #112 | 1,200 | 13731924 |
| 645456 | Sep 5, 2007 | Sep 5, 2007 | Megawest Energy Texas Corp. | Morriss, Patti Beall #167 | 1,200 | 13731925 |
| 645017 | Aug 28, 2007 | Aug 28, 2007 | Diamondback Operating, LP | Red Crest Trust "32" #1 | 3,000 | 13731922 |
| 644751 | Aug 23, 2007 | Aug 23, 2007 | Megawest Energy Texas Corp. | Shanklin, Souli #1 | 1,200 | 13731921 |
| 644518 | Aug 20, 2007 | Aug 20, 2007 | Megawest Energy Texas Corp. | Madge Shanklin #1091 | 1,200 | 13731920 |
| 644518Amendment | Aug 20, 2007 | Aug 20, 2007 | Megawest Energy Texas Corp. | Madge Shanklin #1091 | 1,200 | 13731920 |
| 644363 | Aug 16, 2007 | Aug 16, 2007 | Diamondback Operating, LP | Bowermaster #4704 | 2,700 | 13731919 |
| 644244 | Aug 16, 2007 | Aug 16, 2007 | Newfield Exploration Company | Rolston #803HH | 10,000 | 13731918 |
| 644242 | Aug 16, 2007 | Aug 16, 2007 | Newfield Exploration Company | Rolston #802HH | 10,000 | 13731824 |
| 643270 | Aug 14, 2007 | Aug 14, 2007 | Megawest Energy Texas Corp. | Mitchell "87" #1 | 5,000 | 13731915 |
| 643945 | Aug 13, 2007 | Aug 13, 2007 | Megawest Energy Texas Corp. | Murphy, Mike et Al #1 | 5,000 | 13731916 |
| 643950 | Aug 10, 2007 | Aug 10, 2007 | Megawest Energy Texas Corp. | Marshall #1 | 1,200 | 13731917 |
| 643667 | Aug 9, 2007 | Aug 9, 2007 | Diamondback Operating, LP | Jenkins #5901 | 2,600 | 13731914 |
| 641580 | Jul 11, 2007 | Jul 11, 2007 | Newfield Exploration Company | Allar #5803HH | 10,000 | 13731913 |
| 641580Amendment | Jul 11, 2007 | Jul 11, 2007 | Newfield Exploration Company | Allar #5803HH | 10,000 | 13731913 |
| 641576 | Jul 10, 2007 | Jul 10, 2007 | Newfield Exploration Company | Whitehead #8503 | 15,500 | 13731912 |
| 641576Amendment | Jul 10, 2007 | Jul 10, 2007 | Newfield Exploration Company | Whitehead 85 G.U. 1 #H 3STH | 15,500 | 13731912 |
| 640162 | Jul 10, 2007 | Jul 10, 2007 | Newfield Exploration Company | Mayfield "C" #1HH | 11,000 | 13731909 |
| 640986 | Jul 5, 2007 | Jul 5, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #9012EX | 7,150 | 13731910 |
| 641438 | Jun 26, 2007 | Jun 26, 2007 | Newfield Exploration Company | Davis #1001HH | 10,000 | 13731911 |
| 639859 | Jun 7, 2007 | Jun 7, 2007 | Mextex Operating Company | Nebgen #1 | 5,000 | 13731907 |
| 639856 | Jun 7, 2007 | Jun 7, 2007 | Mextex Operating Company | Nethery #1 | 5,000 | 13731908 |
| 639489 | Jun 1, 2007 | Jun 1, 2007 | Newfield Exploration Company | Shaw #7001HH | 11,000 | 13731906 |
| 638935 | May 23, 2007 | May 23, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #2095E | 7,150 | 13731905 |
| 638928 | May 23, 2007 | May 23, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #1127E | 7,300 | 13731904 |
| 638208 | May 17, 2007 | May 17, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #1128E | 7,250 | 13731902 |
| 638209 | May 10, 2007 | May 10, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #1126E | 7,250 | 13731903 |
| 638209Amendment | May 10, 2007 | May 10, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #1126E | 7,250 | 13731903 |
| 637969 | May 10, 2007 | May 10, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #1066E | 7,150 | 13731894 |
| 637969Amendment | May 10, 2007 | May 10, 2007 | Highmount Expl & Prod Texas LLC | Canyon Ranch #1066E | 7,150 | 13731894 |
| 638171 | May 9, 2007 | May 9, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #9011E | 7,250 | 13731899 |
| 638163 | May 9, 2007 | May 9, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #9010E | 7,250 | 13731900 |
| 638158 | May 9, 2007 | May 9, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #909E | 7,250 | 13731901 |
| 638154 | May 9, 2007 | May 9, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #908E | 7,250 | 13731895 |
| 638150 | May 9, 2007 | May 9, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #907E | 7,250 | 13731898 |
| 638147 | May 9, 2007 | May 9, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #906E | 7,250 | 13731897 |
| 638147Amendment | May 9, 2007 | May 9, 2007 | Highmount Expl & Prod Texas LLC | Canyon Ranch #906E | 7,250 | 13731897 |
| 638144 | May 9, 2007 | May 9, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #905E | 7,250 | 13731896 |
| 638144Amendment | May 9, 2007 | May 9, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #905E | 7,250 | 13731896 |
| 637983 | May 8, 2007 | May 8, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #1067E | 7,150 | 13731892 |
| 637968 | May 8, 2007 | May 8, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #1065E | 7,100 | 13731891 |
| 637966 | May 8, 2007 | May 8, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #1061E | 7,150 | 13731890 |
| 637864 | May 8, 2007 | May 8, 2007 | Newfield Exploration Company | Four Square Ranch #21HRH | 10,000 | 13731893 |
| 637673 | May 1, 2007 | May 1, 2007 | Chesapeake Operating, Inc. | Cmajdalka #5902 | 10,000 | 13731889 |
| 637629 | Apr 30, 2007 | Apr 30, 2007 | Chesapeake Operating, Inc. | Cmajdalka #5901 | 10,000 | 13731888 |
| 636782 | Apr 14, 2007 | Apr 14, 2007 | Chesapeake Operating, Inc. | Barr 59 #1 | 10,000 | 13731887 |
| 636782Amendment | Apr 14, 2007 | Apr 14, 2007 | Chesapeake Operating, Inc. | Barr 59 #1 | 10,000 | 13731887 |
| 636782Amendment | Apr 14, 2007 | Apr 14, 2007 | Chesapeake Operating, Inc. | Barr 59 #1HH | 10,000 | 13731887 |
| 636753 | Apr 14, 2007 | Apr 14, 2007 | Newfield Exploration Company | Davis #7703HH | 10,000 | 13731886 |
| 636310 | Apr 9, 2007 | Apr 9, 2007 | Newfield Exploration Company | Whitehead #8502 | 15,500 | 13731885 |
| 635582 | Mar 28, 2007 | Mar 28, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #9012E | 6,850 | 13731884 |
| 635581 | Mar 28, 2007 | Mar 28, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #1079E | 7,350 | 13731883 |
| 635580 | Mar 28, 2007 | Mar 28, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #1078E | 7,350 | 13731882 |
| 635579 | Mar 28, 2007 | Mar 28, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #1077E | 7,350 | 13731881 |
| 635576 | Mar 28, 2007 | Mar 28, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch 107 #13E | 7,350 | 13731880 |
| 635574 | Mar 28, 2007 | Mar 28, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch 107 #12E | 7,350 | 13731879 |
| 635574Amendment | Mar 28, 2007 | Mar 28, 2007 | Highmount Expl & Prod Texas LLC | Canyon Ranch 107 #12E | 7,350 | 13731879 |
| 635573 | Mar 28, 2007 | Mar 28, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch 107 #11E | 7,350 | 13731878 |
| 635571 | Mar 28, 2007 | Mar 28, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch 107 #10E | 7,350 | 13731877 |
| 634271 | Mar 7, 2007 | Mar 7, 2007 | Newfield Exploration Company | Mayfield "A" #2HH | 11,000 | 13731876 |
| 634271Amendment | Mar 7, 2007 | Mar 7, 2007 | Newfield Exploration Company | Mayfield "A" #2HH | 11,000 | 13731876 |
| 632958 | Feb 6, 2007 | Feb 6, 2007 | Qualia, C. F. Operating,inc. | Johnson #1 | 4,000 | 13731875 |
| 632848 | Feb 5, 2007 | Feb 5, 2007 | Newfield Exploration Company | Four Square Ranch #21HH | 10,000 | 13731874 |
| 632841 | Feb 5, 2007 | Feb 5, 2007 | Diamondback Operating, LP | Loretta #1901 | 3,423 | 13730224 |
| 631905 | Jan 18, 2007 | Jan 18, 2007 | Swartz Oil Company | Vernor #2 | 3,000 | 13731873 |
| 631453 | Jan 12, 2007 | Jan 12, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #1063E | 7,250 | 13731872 |
| 631452 | Jan 12, 2007 | Jan 12, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #1064E | 7,250 | 13731871 |
| 631449 | Jan 12, 2007 | Jan 12, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #1139E | 7,050 | 13731870 |
| 631445 | Jan 12, 2007 | Jan 12, 2007 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch 113 #11E | 7,050 | 13731869 |
| 630971 | Dec 22, 2006 | Dec 22, 2006 | Newfield Exploration Company | Shaw #7502HH | 10,000 | 13731868 |
| 630971Amendment | Dec 22, 2006 | Dec 22, 2006 | Newfield Exploration Company | Shaw #7502HH | 10,000 | 13731868 |
| 630833 | Dec 21, 2006 | Dec 21, 2006 | Chesapeake Operating, Inc. | Cude 36 #1 | 12,000 | 13731867 |
| 630523 | Dec 14, 2006 | Dec 14, 2006 | Chesapeake Operating, Inc. | Cmajdalka 62 #1 | 10,000 | 13731866 |
| 629847 | Dec 1, 2006 | Dec 1, 2006 | Newfield Exploration Company | Mayfield "206" #1HH | 9,000 | 13731865 |
| 628690 | Nov 10, 2006 | Nov 10, 2006 | Newfield Exploration Company | Whitehead "45" #8 | 12,000 | 13731863 |
| 628678 | Nov 8, 2006 | Nov 8, 2006 | Newfield Exploration Company | Earwood 'A' #15 | 11,000 | 13731862 |
| 628694 | Nov 7, 2006 | Nov 7, 2006 | Newfield Exploration Company | Whitehead #8501 | 15,500 | 13731864 |
| 628680 | Nov 7, 2006 | Nov 7, 2006 | Newfield Exploration Company | Mayfield "E" #1 | 12,500 | 13731861 |
| 628562 | Nov 3, 2006 | Nov 3, 2006 | Newfield Exploration Company | Four Square Ranch #20 | 8,500 | 13731803 |
| 627899 | Oct 23, 2006 | Oct 23, 2006 | Newfield Exploration Company | Newby "A" #9 | 11,000 | 13731860 |
| 627806 | Oct 19, 2006 | Oct 19, 2006 | Newfield Exploration Company | Four Square Ranch #17HH | 10,000 | 13731859 |
| 627806Amendment | Oct 19, 2006 | Oct 19, 2006 | Newfield Exploration Company | Four Square Ranch #17HH | 10,000 | 13731859 |
| 626609 | Sep 27, 2006 | Sep 27, 2006 | Newfield Exploration Company | Wittenburg #3701 | 10,000 | 13731858 |
| 624313 | Aug 15, 2006 | Aug 15, 2006 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #1062E | 6,975 | 13731857 |
| 624232 | Aug 11, 2006 | Aug 11, 2006 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #1125E | 7,050 | 13731856 |
| 623939 | Aug 7, 2006 | Aug 7, 2006 | Dominion Oklahoma Texas E&P, Inc | Wardlaw #602 | 10,000 | 13731855 |
| 623894 | Aug 4, 2006 | Aug 4, 2006 | Newfield Exploration Company | Earwood "A" #14 | 11,000 | 13731854 |
| 623893 | Aug 4, 2006 | Aug 4, 2006 | Newfield Exploration Company | Newby 151 #6 | 11,000 | 13731853 |
| 623667 | Aug 2, 2006 | Aug 2, 2006 | Newfield Exploration Company | Shaw #7102HH | 10,000 | 13731852 |
| 623667Amendment | Aug 2, 2006 | Aug 2, 2006 | Newfield Exploration Company | Shaw #7102HH | 10,000 | 13731852 |
| 623667Amendment | Aug 2, 2006 | Aug 2, 2006 | Newfield Exploration Company | Shaw #7102HH | 10,000 | 13731852 |
| 623357 | Jul 31, 2006 | Jul 31, 2006 | Newfield Exploration Company | Newby G.U. 3 #3 | 11,000 | 13731851 |
| 622608 | Jul 14, 2006 | Jul 14, 2006 | Newfield Exploration Company | Five C Ranch #5802 | 10,000 | 13731850 |
| 622608Amendment | Jul 14, 2006 | Jul 14, 2006 | Newfield Exploration Company | Five C Ranch #5802 | 10,000 | 13731850 |
| 622201 | Jul 10, 2006 | Jul 10, 2006 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #1074E | 7,350 | 13731849 |
| 621595 | Jun 27, 2006 | Jun 27, 2006 | Dominion Oklahoma Texas E&P, Inc | Canyon Ranch #2092E | 7,000 | 13731848 |
| 621465 | Jun 22, 2006 | Jun 22, 2006 | Newfield Exploration Company | Mayfield "B" #1 | 11,500 | 13731847 |