| 715845 | May 10, 2011 | May 10, 2011 | BVX Operating, Inc. | State of Texas BK #6 | 7,000 | 00342913 |
| 715841 | May 10, 2011 | May 10, 2011 | BVX Operating, Inc. | State of Texas BK #5 | 7,000 | 00342912 |
| 715726 | May 10, 2011 | May 10, 2011 | Sandridge Expl. and Prod., LLC | Munger Nix a LZS #52 | 4,900 | 00342903 |
| 715670 | May 10, 2011 | May 10, 2011 | Pioneer Natural Res. USA, Inc. | University '7-38' #5 | 11,800 | 00342923 |
| 715666 | May 10, 2011 | May 10, 2011 | Pioneer Natural Res. USA, Inc. | University '7-38' #4 | 11,800 | 00342922 |
| 715665 | May 10, 2011 | May 10, 2011 | Sandridge Expl. and Prod., LLC | Munger Nix a LZS #53 | 4,900 | 00342895 |
| 715663 | May 10, 2011 | May 10, 2011 | Pioneer Natural Res. USA, Inc. | University "7-38" #2 | 11,800 | 00342921 |
| 715663Amendment | May 10, 2011 | May 10, 2011 | Pioneer Natural Res. USA, Inc. | University '7-38' #2 | 11,800 | 00342921 |
| 715622 | May 10, 2011 | May 10, 2011 | Pioneer Natural Res. USA, Inc. | University '7-35' #2 | 11,800 | 00342920 |
| 715620 | May 10, 2011 | May 10, 2011 | Pioneer Natural Res. USA, Inc. | University '7-34' #8 | 11,800 | 00342919 |
| 715616 | May 10, 2011 | May 10, 2011 | Pioneer Natural Res. USA, Inc. | University '7-34' #7 | 11,800 | 00342918 |
| 715614 | May 10, 2011 | May 10, 2011 | Pioneer Natural Res. USA, Inc. | University '7-34' #6 | 11,800 | 00342917 |
| 715611 | May 10, 2011 | May 10, 2011 | Pioneer Natural Res. USA, Inc. | University '7-34' #5 | 11,800 | 00342916 |
| 715780 | May 9, 2011 | May 9, 2011 | Devon Energy Production Co, L.P. | Uls 4-27 #1 | 11,500 | 00342911 |
| 715780Amendment | May 9, 2011 | May 9, 2011 | Devon Energy Production Co, L.P. | Uls 4-27 #1 | 11,500 | 00342911 |
| 715760 | May 9, 2011 | May 9, 2011 | Devon Energy Production Co, L.P. | Uls 5-26 #4 | 11,500 | 00342905 |
| 715743 | May 9, 2011 | May 9, 2011 | Chesapeake Operating, Inc. | Bruce & Bar A54-22 #1HH | 14,200 | 00342904 |
| 715737 | May 9, 2011 | May 9, 2011 | Sandridge Expl. and Prod., LLC | University Consolidated V #2006 | 8,500 | 00342910 |
| 715736 | May 9, 2011 | May 9, 2011 | Sandridge Expl. and Prod., LLC | University Consolidated V #2005 | 8,500 | 00342909 |
| 715734 | May 9, 2011 | May 9, 2011 | Sandridge Expl. and Prod., LLC | University Consolidated V #2004 | 8,500 | 00342908 |
| 715734Amendment | May 9, 2011 | May 9, 2011 | Sandridge Expl. and Prod., LLC | University Consolidated V #2004 | 8,500 | 00342908 |
| 715733 | May 9, 2011 | May 9, 2011 | Sandridge Expl. and Prod., LLC | University Consolidated V #2003 | 8,500 | 00342907 |
| 715733Amendment | May 9, 2011 | May 9, 2011 | Sandridge Expl. and Prod., LLC | University Consolidated V #2003 | 8,500 | 00342907 |
| 715732 | May 9, 2011 | May 9, 2011 | Sandridge Expl. and Prod., LLC | University Consolidated V #2002 | 8,500 | 00342906 |
| 715732Amendment | May 9, 2011 | May 9, 2011 | Sandridge Expl. and Prod., LLC | University Consolidated V #2002 | 8,500 | 00342906 |
| 715717 | May 9, 2011 | May 9, 2011 | Devon Energy Production Co, L.P. | Uls 5-39 #2 | 11,400 | 00345358 |
| 715696 | May 9, 2011 | May 9, 2011 | RSP Permian, LLC | Cross Bar Ranch #1703 | 12,000 | 00342902 |
| 715674 | May 9, 2011 | May 9, 2011 | Sandridge Expl. and Prod., LLC | Munger Nix 'a' LZS #50 | 4,900 | 00342898 |
| 715673 | May 9, 2011 | May 9, 2011 | Sandridge Expl. and Prod., LLC | Munger Nix 'a' LZS #54 | 4,900 | 00342899 |
| 715672 | May 9, 2011 | May 9, 2011 | Sandridge Expl. and Prod., LLC | Thornberry 7N #15 | 4,900 | 00342897 |
| 715669 | May 9, 2011 | May 9, 2011 | Sandridge Expl. and Prod., LLC | Munger Nix 'a' LZS #51 | 4,900 | 00342896 |
| 715668 | May 9, 2011 | May 9, 2011 | Sandridge Expl. and Prod., LLC | Lyda Miles #17 | 4,900 | 00342894 |
| 715664 | May 6, 2011 | May 6, 2011 | Sandridge Expl. and Prod., LLC | JT Lindley-Lynne #41 | 4,900 | 00342893 |
| 715583 | May 6, 2011 | May 6, 2011 | Greystone Oil & Gas, LLP | University AZ #5 | 3,300 | 00300822 |
| 715576 | May 6, 2011 | May 6, 2011 | Pioneer Natural Res. USA, Inc. | University '7-34' #4 | 11,800 | 00342891 |
| 715526 | May 6, 2011 | May 6, 2011 | Windsor Permian LLC | Big Max 23 SW #11 | 11,200 | 00342888 |
| 715446 | May 6, 2011 | May 6, 2011 | Pioneer Natural Res. USA, Inc. | University '7-9' #7 | 11,800 | 00342877 |
| 715333 | May 6, 2011 | May 6, 2011 | Sandridge Expl. and Prod., LLC | Thornberry E #7 | 4,900 | 00342884 |
| 715533 | May 5, 2011 | May 5, 2011 | Windsor Permian LLC | Big Max 26 SE #9 | 11,200 | 00342890 |
| 715530 | May 5, 2011 | May 5, 2011 | Windsor Permian LLC | Big Max 26 NW #6 | 11,200 | 00342889 |
| 715523 | May 5, 2011 | May 5, 2011 | Windsor Permian LLC | Big Max 23 NW #3 | 11,200 | 00342887 |
| 715468 | May 5, 2011 | May 5, 2011 | Sandridge Expl. and Prod., LLC | MA Thornberry Consolidated II #47 | 4,900 | 00342886 |
| 715360 | May 5, 2011 | May 5, 2011 | Sandridge Expl. and Prod., LLC | Ashton-NWS #12 | 4,900 | 00342882 |
| 715478 | May 4, 2011 | May 4, 2011 | Sandridge Expl. and Prod., LLC | Thornberry, MA Bustamante #13 | 4,900 | 00342880 |
| 715347 | May 4, 2011 | May 4, 2011 | Sandridge Expl. and Prod., LLC | Lyda Miles Gap #10 | 4,900 | 00342881 |
| 715341 | May 4, 2011 | May 4, 2011 | Sandridge Expl. and Prod., LLC | Thornberry-NWS #47 | 4,900 | 00342883 |
| 715328 | May 4, 2011 | May 4, 2011 | Sandridge Expl. and Prod., LLC | King -B- #15 | 4,900 | 00342878 |
| 715326 | May 4, 2011 | May 4, 2011 | Sandridge Expl. and Prod., LLC | Lyda Miles #16 | 4,900 | 00342879 |
| 715308 | May 4, 2011 | May 4, 2011 | Pacesetter Energy, LLC | Fisher 4 #5HH | 9,500 | 00342876 |
| 715308Amendment | May 4, 2011 | May 4, 2011 | Forge Energy, LLC | Fisher 4 #5HH | 9,500 | 00342876 |
| 715156 | May 4, 2011 | May 4, 2011 | Sandridge Expl. and Prod., LLC | Thornberry, MA Consolidated II #32 | 4,900 | 00342875 |
| 715086 | May 4, 2011 | May 4, 2011 | Sandridge Expl. and Prod., LLC | Thornberry 7N #13 | 4,900 | 00342874 |
| 715031 | May 4, 2011 | May 4, 2011 | Sandridge Expl. and Prod., LLC | Corrigan #30 | 4,900 | 00342864 |
| 715251 | May 3, 2011 | May 3, 2011 | PDC Energy | Sarah S #1631 | 12,000 | 00342873 |
| 715159 | May 2, 2011 | May 2, 2011 | Devon Energy Production Co, L.P. | Uls Cdu 4-12 #10 | 11,292 | 00341102 |
| 715152 | May 2, 2011 | May 2, 2011 | Devon Energy Production Co, L.P. | Univcindy #504 | 11,410 | 00341160 |
| 715150 | May 2, 2011 | May 2, 2011 | Sandridge Expl. and Prod., LLC | Thornberry J #8 | 4,900 | 00342871 |
| 715073 | May 2, 2011 | May 2, 2011 | Sandridge Expl. and Prod., LLC | MA Thornberry Consolidated III #46 | 4,900 | 00342866 |
| 712339 | May 2, 2011 | May 2, 2011 | Sandridge Expl. and Prod., LLC | University 14-16 #15C | 4,900 | 00342869 |
| 715032 | Apr 29, 2011 | Apr 29, 2011 | Sandridge Expl. and Prod., LLC | Cities #10 | 4,900 | 00342865 |
| 714877 | Apr 29, 2011 | Apr 29, 2011 | Pioneer Natural Res. USA, Inc. | University "7-22" #7 | 11,900 | 00342863 |
| 714869 | Apr 29, 2011 | Apr 29, 2011 | Pioneer Natural Res. USA, Inc. | University "7-11" #3 | 11,700 | 00342862 |
| 714869Amendment | Apr 29, 2011 | Apr 29, 2011 | Pioneer Natural Res. USA, Inc. | University '7-11' #3 | 12,000 | 00342862 |
| 714867 | Apr 29, 2011 | Apr 29, 2011 | Pioneer Natural Res. USA, Inc. | University '7-9' #6 | 11,800 | 00342860 |
| 714865 | Apr 29, 2011 | Apr 29, 2011 | Pioneer Natural Res. USA, Inc. | University '7-9' #5 | 11,700 | 00342859 |
| 714915 | Apr 28, 2011 | Apr 28, 2011 | Ped Oil Corporation | Ped Wichita #4 | 7,900 | 00342861 |
| 712636 | Apr 28, 2011 | Apr 28, 2011 | Texland Petroleum, L.P. | Twilight #4 | 4,800 | 00342779 |
| 714638 | Apr 25, 2011 | Apr 25, 2011 | Apache Corporation | NE Bakke #1 | 9,500 | 00342858 |
| 714633 | Apr 25, 2011 | Apr 25, 2011 | Chesapeake Operating, Inc. | Mabee W #3 | 12,000 | 00342857 |
| 712338 | Apr 25, 2011 | Apr 25, 2011 | Sandridge Expl. and Prod., LLC | University 14-16 #13C | 4,900 | 00342766 |
| 714507 | Apr 22, 2011 | Apr 22, 2011 | Sandridge Expl. and Prod., LLC | Thornberry, MA Bustamante #18 | 4,900 | 00342854 |
| 714525 | Apr 21, 2011 | Apr 21, 2011 | Sandridge Expl. and Prod., LLC | Olsen et Al #12 | 4,900 | 00342856 |
| 714521 | Apr 21, 2011 | Apr 21, 2011 | Sandridge Expl. and Prod., LLC | CC Lockhart & Brown B #10 | 4,900 | 00342855 |
| 714519 | Apr 21, 2011 | Apr 21, 2011 | Sandridge Expl. and Prod., LLC | Knight #12 | 4,900 | 00342853 |
| 711236 | Apr 21, 2011 | Apr 21, 2011 | Ped Oil Corporation | State Shosid #1 | 7,550 | 00337162 |
| 714485 | Apr 20, 2011 | Apr 20, 2011 | Sandridge Expl. and Prod., LLC | University 12A #3 | 7,200 | 00342852 |
| 714485Amendment | Apr 20, 2011 | Apr 20, 2011 | Sandridge Expl. and Prod., LLC | University 12A #3 | 8,800 | 00342852 |
| 714325 | Apr 20, 2011 | Apr 20, 2011 | Dakota Resources, Inc. (I) | University Emilie #2 | 11,200 | 00342851 |
| 714320 | Apr 20, 2011 | Apr 20, 2011 | Dakota Resources, Inc. (I) | University Emilie #1 | 11,200 | 00342850 |
| 714079 | Apr 20, 2011 | Apr 20, 2011 | Pioneer Natural Res. USA, Inc. | University '6-45' #4 | 11,700 | 00342847 |
| 714078 | Apr 20, 2011 | Apr 20, 2011 | Pioneer Natural Res. USA, Inc. | University '6-26' #1 | 11,800 | 00342848 |
| 714048 | Apr 20, 2011 | Apr 20, 2011 | Texland Petroleum, L.P. | C. W. Logsdon "E" #25 | 4,800 | 00342826 |
| 714048Amendment | Apr 20, 2011 | Apr 20, 2011 | Texland Petroleum, L.P. | C. W. Logsdon 'E' #25 | 7,500 | 00342826 |
| 713482 | Apr 20, 2011 | Apr 20, 2011 | Sandridge Expl. and Prod., LLC | MA Thornberry et al Est NWS #13 | 4,900 | 00342805 |
| 714317 | Apr 19, 2011 | Apr 19, 2011 | Apache Corporation | Bakke Unit #158 | 9,600 | 00342845 |
| 714313 | Apr 19, 2011 | Apr 19, 2011 | Apache Corporation | Bakke Unit #157 | 9,600 | 00342844 |
| 714232 | Apr 19, 2011 | Apr 19, 2011 | Texland Petroleum, L.P. | Logsdon "C" #57 | 7,500 | 00342837 |
| 714232Amendment | Apr 19, 2011 | Apr 19, 2011 | Texland Petroleum, L.P. | Logsdon 'C' #57 | 7,500 | 00342837 |
| 713771 | Apr 19, 2011 | Apr 19, 2011 | Texland Petroleum, L.P. | Elena #1 | 6,200 | 00342843 |
| 713697 | Apr 19, 2011 | Apr 19, 2011 | PDC Energy | Mabee Ranch #4063 | 11,475 | 00342846 |
| 713697Amendment | Apr 19, 2011 | Apr 19, 2011 | PDC Energy | Mabee Ranch #4063 | 11,700 | 00342846 |
| 714266 | Apr 18, 2011 | Apr 18, 2011 | COG Operating LLC | Bitler-Lowe Clearfork Unit #30 | 8,000 | 00342841 |
| 714265 | Apr 18, 2011 | Apr 18, 2011 | COG Operating LLC | Bitler-Lowe Clearfork Unit #33 | 8,000 | 00342840 |
| 714264 | Apr 18, 2011 | Apr 18, 2011 | COG Operating LLC | Bitler-Lowe -B- #19 | 8,000 | 00342839 |
| 714233 | Apr 18, 2011 | Apr 18, 2011 | COG Operating LLC | Bitler-Lowe -B- #18 | 8,000 | 00342838 |
| 714203 | Apr 18, 2011 | Apr 18, 2011 | Sandridge Expl. and Prod., LLC | Winter #3 | 9,000 | 00342835 |
| 714166 | Apr 18, 2011 | Apr 18, 2011 | Sandridge Expl. and Prod., LLC | Thornberry 5E #5 | 4,900 | 00342831 |
| 713714 | Apr 18, 2011 | Apr 18, 2011 | PDC Energy | Mabee Ranch #4085 | 11,475 | 00342842 |
| 713714Amendment | Apr 18, 2011 | Apr 18, 2011 | PDC Energy | Mabee Ranch #4085 | 11,700 | 00342842 |
| 713695 | Apr 18, 2011 | Apr 18, 2011 | Discovery Operating, Inc. | Carbright 23 #2 | 9,215 | 00341207 |