| 692648 | Mar 12, 2010 | Mar 12, 2010 | Williams Prod. Gulf Coast, L.P. | Denton | Cummings B #6HH | 7,900 | 12133932 |
| 692648Amendment | Mar 12, 2010 | Mar 12, 2010 | Williams Prod. Gulf Coast, L.P. | Denton | Cummings B #6HH | 8,500 | 12133932 |
| 692613 | Mar 12, 2010 | Mar 12, 2010 | Williams Prod. Gulf Coast, L.P. | Denton | Cummings B #5HH | 7,700 | 12133931 |
| 692613Amendment | Mar 12, 2010 | Mar 12, 2010 | Williams Prod. Gulf Coast, L.P. | Denton | Cummings B #5HH | 8,500 | 12133931 |
| 690955 | Feb 9, 2010 | Feb 9, 2010 | Williams Prod. Gulf Coast, L.P. | Denton | Wright B #9HH | 8,200 | 12133923 |
| 690844 | Feb 8, 2010 | Feb 8, 2010 | Williams Prod. Gulf Coast, L.P. | Denton | Wright C #13HH | 7,780 | 12133922 |
| 690844Amendment | Feb 8, 2010 | Feb 8, 2010 | Williams Prod. Gulf Coast, L.P. | Denton | Wright C #13HH | 7,780 | 12133922 |
| 690836 | Feb 8, 2010 | Feb 8, 2010 | Williams Prod. Gulf Coast, L.P. | Denton | Wright C #12HH | 8,200 | 12133921 |
| 690836Amendment | Feb 8, 2010 | Feb 8, 2010 | Williams Prod. Gulf Coast, L.P. | Denton | Wright C #12HH | 8,200 | 12133921 |
| 690836Amendment | Feb 8, 2010 | Feb 8, 2010 | Williams Prod. Gulf Coast, L.P. | Denton | Wright C #12HH | 8,528 | 12133921 |
| 690748 | Feb 5, 2010 | Feb 5, 2010 | Williams Prod. Gulf Coast, L.P. | Denton | Wright C #5HH | 8,200 | 12133918 |
| 690748Amendment | Feb 5, 2010 | Feb 5, 2010 | Williams Prod. Gulf Coast, L.P. | Denton | Wright C #5HH | 8,500 | 12133918 |
| 690686 | Feb 4, 2010 | Feb 4, 2010 | Williams Prod. Gulf Coast, L.P. | Denton | Wright B #16HH | 8,270 | 12133915 |
| 690662 | Feb 4, 2010 | Feb 4, 2010 | Williams Prod. Gulf Coast, L.P. | Denton | Wright B #15HH | 8,275 | 12133914 |
| 690601 | Feb 3, 2010 | Feb 3, 2010 | Williams Prod. Gulf Coast, L.P. | Denton | Wright C #4HH | 7,780 | 12133913 |
| 690601Amendment | Feb 3, 2010 | Feb 3, 2010 | Williams Prod. Gulf Coast, L.P. | Denton | Wright C #4HH | 8,510 | 12133913 |
| 689829 | Jan 19, 2010 | Jan 19, 2010 | Williams Prod. Gulf Coast, L.P. | Denton | Wright C #1HH | 8,480 | 12133911 |
| 689603 | Jan 13, 2010 | Jan 13, 2010 | Williams Prod. Gulf Coast, L.P. | Johnson | Goldsmith #2HH | 7,920 | 25133857 |
| 689603Amendment | Jan 13, 2010 | Jan 13, 2010 | Williams Prod. Gulf Coast, L.P. | Johnson | Goldsmith #2HH | 8,500 | 25133857 |
| 689602 | Jan 13, 2010 | Jan 13, 2010 | Williams Prod. Gulf Coast, L.P. | Johnson | Goldsmith #1HH | 7,920 | 25133856 |
| 689602Amendment | Jan 13, 2010 | Jan 13, 2010 | Williams Prod. Gulf Coast, L.P. | Johnson | Goldsmith #1HH | 8,500 | 25133856 |
| 688811 | Dec 18, 2009 | Dec 18, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Blessing Unit A #2HH | 8,500 | 12133891 |
| 688810 | Dec 18, 2009 | Dec 18, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Blessing Unit A #3HH | 8,500 | 12133890 |
| 688809 | Dec 18, 2009 | Dec 18, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Blessing Unit A #4HH | 8,500 | 12133888 |
| 688184 | Dec 4, 2009 | Dec 4, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith B West #4HH | 8,500 | 12133884 |
| 688183 | Dec 4, 2009 | Dec 4, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith B West #3HH | 8,500 | 12133883 |
| 688183Amendment | Dec 4, 2009 | Dec 4, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith B West #3HH | 8,500 | 12133883 |
| 687753 | Dec 2, 2009 | Dec 2, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith B West #9HH | 8,500 | 12133873 |
| 687753Amendment | Dec 2, 2009 | Dec 2, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith B West #9HH | 8,500 | 12133873 |
| 687743 | Dec 2, 2009 | Dec 2, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith B West #2HH | 8,500 | 12133872 |
| 687743Amendment | Dec 2, 2009 | Dec 2, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith B West #2HH | 8,500 | 12133872 |
| 687938 | Nov 30, 2009 | Nov 30, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Cummings-Hodge Unit #4HH | 8,500 | 12133882 |
| 687938Amendment | Nov 30, 2009 | Nov 30, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Cummings-Hodge Unit #4HH | 8,500 | 12133882 |
| 687754 | Nov 30, 2009 | Nov 30, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith B West #10HH | 8,500 | 12133874 |
| 687939 | Nov 25, 2009 | Nov 25, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Cummings-Hodge Unit #2HH | 8,500 | 12133880 |
| 687939Amendment | Nov 25, 2009 | Nov 25, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Cummings-Hodge Unit #2HH | 8,500 | 12133880 |
| 687937 | Nov 25, 2009 | Nov 25, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Cummings-Hodge Unit #3HH | 8,500 | 12133881 |
| 687937Amendment | Nov 25, 2009 | Nov 25, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Cummings-Hodge Unit #3HH | 8,500 | 12133881 |
| 687934 | Nov 25, 2009 | Nov 25, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Cummings-Hodge Unit #1HH | 8,500 | 12133879 |
| 687934Amendment | Nov 25, 2009 | Nov 25, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Cummings-Hodge Unit #1HH | 8,500 | 12133879 |
| 687311 | Nov 19, 2009 | Nov 19, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith a North #10HH | 8,500 | 12133861 |
| 687311Amendment | Nov 19, 2009 | Nov 19, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith a North #10HH | 8,500 | 12133861 |
| 687211 | Nov 17, 2009 | Nov 17, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith a North #9HH | 8,500 | 12133868 |
| 687211Amendment | Nov 17, 2009 | Nov 17, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith a North #9HH | 8,500 | 12133868 |
| 687019 | Nov 16, 2009 | Nov 16, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Rice Ranch Unit #A 3HH | 8,500 | 12133851 |
| 687019Amendment | Nov 16, 2009 | Nov 16, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Rice Ranch Unit #A 3HH | 8,500 | 12133851 |
| 687019Amendment | Nov 16, 2009 | Nov 16, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Rice Ranch Unit #A 3HH | 8,500 | 12133851 |
| 687059 | Nov 13, 2009 | Nov 13, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Rice Ranch Unit B #7HH | 8,500 | 12133865 |
| 687056 | Nov 13, 2009 | Nov 13, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Rice Ranch Unit B #6HH | 8,500 | 12133867 |
| 687045 | Nov 13, 2009 | Nov 13, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Rice Ranch Unit B #5HH | 8,500 | 12133866 |
| 687206 | Nov 12, 2009 | Nov 12, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith a North #8HH | 8,500 | 12133858 |
| 687206Amendment | Nov 12, 2009 | Nov 12, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith a North #8HH | 8,500 | 12133858 |
| 687017 | Nov 12, 2009 | Nov 12, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Rice Ranch Unit #A 1HH | 8,500 | 12133850 |
| 687181 | Nov 10, 2009 | Nov 10, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith a North #7HH | 8,500 | 12133855 |
| 687181Amendment | Nov 10, 2009 | Nov 10, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith a North #7HH | 8,500 | 12133855 |
| 687155 | Nov 10, 2009 | Nov 10, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith a North #6HH | 8,500 | 12133857 |
| 687155Amendment | Nov 10, 2009 | Nov 10, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith a North #6HH | 8,500 | 12133857 |
| 687020 | Nov 10, 2009 | Nov 10, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Rice Ranch Unit #A 4HH | 8,500 | 12133852 |
| 687020Amendment | Nov 10, 2009 | Nov 10, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Rice Ranch Unit #A 4HH | 8,500 | 12133852 |
| 687018 | Nov 6, 2009 | Nov 6, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Rice Ranch Unit #A 2HH | 8,500 | 12133849 |
| 686939 | Nov 5, 2009 | Nov 5, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith a North #5HH | 7,992 | 12133845 |
| 686939Amendment | Nov 5, 2009 | Nov 5, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith a North #5HH | 7,992 | 12133845 |
| 686939Amendment | Nov 5, 2009 | Nov 5, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith a North #5HH | 8,326 | 12133845 |
| 686937 | Nov 5, 2009 | Nov 5, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith a North #4HH | 7,992 | 12133844 |
| 686937Amendment | Nov 5, 2009 | Nov 5, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith a North #4HH | 7,992 | 12133844 |
| 686937Amendment | Nov 5, 2009 | Nov 5, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith a North #4HH | 8,319 | 12133844 |
| 686229 | Oct 19, 2009 | Oct 19, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Wright B #8HH | 7,780 | 12133839 |
| 686229Amendment | Oct 19, 2009 | Oct 19, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Wright B #8HH | 8,495 | 12133839 |
| 686212 | Oct 16, 2009 | Oct 16, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Wright A #6HH | 7,780 | 12133837 |
| 686212Amendment | Oct 16, 2009 | Oct 16, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Wright A #6HH | 7,780 | 12133837 |
| 685914 | Oct 9, 2009 | Oct 9, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Wright B #10HH | 7,750 | 12133831 |
| 685914Amendment | Oct 9, 2009 | Oct 9, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Wright B #10HH | 7,750 | 12133831 |
| 685914Amendment | Oct 9, 2009 | Oct 9, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Wright B #10HH | 8,488 | 12133831 |
| 685899 | Oct 9, 2009 | Oct 9, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Wright A #7HH | 7,780 | 12133830 |
| 685899Amendment | Oct 9, 2009 | Oct 9, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Wright A #7HH | 7,780 | 12133830 |
| 685899Amendment | Oct 9, 2009 | Oct 9, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Wright A #7HH | 8,550 | 12133830 |
| 685938 | Oct 8, 2009 | Oct 8, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Wright C #2HH | 7,750 | 12133833 |
| 685938Amendment | Oct 8, 2009 | Oct 8, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Wright C #2HH | 7,750 | 12133833 |
| 685681 | Oct 1, 2009 | Oct 1, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith B West #1HH | 7,790 | 12133824 |
| 685681Amendment | Oct 1, 2009 | Oct 1, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith B West #1HH | 7,790 | 12133824 |
| 685681Amendment | Oct 1, 2009 | Oct 1, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Dr. Bob Smith B West #1HH | 7,790 | 12133824 |
| 685376 | Sep 23, 2009 | Sep 23, 2009 | Williams Prod. Gulf Coast, L.P. | Tarrant | Parr B #12HH | 7,500 | 43934577 |
| 685345 | Sep 23, 2009 | Sep 23, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Blessing Unit B #8HH | 7,800 | 12133821 |
| 685345Amendment | Sep 23, 2009 | Sep 23, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Blessing Unit B #8HH | 8,505 | 12133821 |
| 685360 | Sep 22, 2009 | Sep 22, 2009 | Williams Prod. Gulf Coast, L.P. | Tarrant | Parr B #11HH | 7,500 | 43934575 |
| 685266 | Sep 22, 2009 | Sep 22, 2009 | Williams Prod. Gulf Coast, L.P. | Tarrant | Parr B #2HH | 7,500 | 43934573 |
| 685255 | Sep 22, 2009 | Sep 22, 2009 | Williams Prod. Gulf Coast, L.P. | Tarrant | Parr B #6HH | 7,500 | 43934567 |
| 685255Amendment | Sep 22, 2009 | Sep 22, 2009 | Williams Prod. Gulf Coast, L.P. | Tarrant | Parr B #6HH | 7,500 | 43934567 |
| 685314 | Sep 21, 2009 | Sep 21, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Blessing Unit A #5HH | 7,800 | 12133820 |
| 685314Amendment | Sep 21, 2009 | Sep 21, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Blessing Unit A #5HH | 8,900 | 12133820 |
| 685267 | Sep 18, 2009 | Sep 18, 2009 | Williams Prod. Gulf Coast, L.P. | Tarrant | Parr B #1HH | 7,500 | 43934570 |
| 685264 | Sep 18, 2009 | Sep 18, 2009 | Williams Prod. Gulf Coast, L.P. | Tarrant | Parr B #9HH | 7,500 | 43934569 |
| 685261 | Sep 18, 2009 | Sep 18, 2009 | Williams Prod. Gulf Coast, L.P. | Tarrant | Parr B #7HH | 7,500 | 43934568 |
| 685251 | Sep 18, 2009 | Sep 18, 2009 | Williams Prod. Gulf Coast, L.P. | Tarrant | Parr B #5HH | 7,500 | 43934565 |
| 685251Amendment | Sep 18, 2009 | Sep 18, 2009 | Williams Prod. Gulf Coast, L.P. | Tarrant | Parr B #5HH | 7,700 | 43934565 |
| 685195 | Sep 18, 2009 | Sep 18, 2009 | Williams Prod. Gulf Coast, L.P. | Tarrant | Parr B #8HH | 7,500 | 43934562 |
| 685193 | Sep 18, 2009 | Sep 18, 2009 | Williams Prod. Gulf Coast, L.P. | Tarrant | Parr B #4HH | 7,500 | 43934566 |
| 684130 | Aug 20, 2009 | Aug 20, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Blessing Unit B #7HH | 7,750 | 12133800 |
| 684130Amendment | Aug 20, 2009 | Aug 20, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Blessing Unit B #7HH | 7,750 | 12133800 |
| 684130Amendment | Aug 20, 2009 | Aug 20, 2009 | Williams Prod. Gulf Coast, L.P. | Denton | Blessing Unit B #7HH | 8,560 | 12133800 |