| 638157Amendment | May 9, 2007 | May 9, 2007 | Samson Lone Star, LLC | University 6032 #100340143 | 13,000 |
| 637913 | May 4, 2007 | May 4, 2007 | OK Arena Operating Company | Ford, W. T. #1700340142 | 4,900 |
| 637872 | May 4, 2007 | May 4, 2007 | Samson Lone Star LP | University 7021 #100340141 | 13,000 |
| 637872Amendment | May 4, 2007 | May 4, 2007 | Samson Lone Star, LLC | University 7021 #100340141 | 13,000 |
| 635229 | May 2, 2007 | May 2, 2007 | Range Production Company | West Fuhrman-Mascho Unit #41700340111 | 4,900 |
| 637464 | Apr 27, 2007 | Apr 27, 2007 | Burleson, Lewis B. Inc. | Logsdon A #300340140 | 7,400 |
| 637253 | Apr 24, 2007 | Apr 24, 2007 | OK Arena Operating Company | J T Lindley #600340139 | 4,900 |
| 637250 | Apr 24, 2007 | Apr 24, 2007 | XTO Energy Inc. | State University At #8HH00338691 | 10,600 |
| 637156 | Apr 20, 2007 | Apr 20, 2007 | OK Arena Operating Company | J T Lindley #500340138 | 4,900 |
| 637155 | Apr 20, 2007 | Apr 20, 2007 | OK Arena Operating Company | J T Lindley #400340137 | 4,900 |
| 637153 | Apr 20, 2007 | Apr 20, 2007 | OK Arena Operating Company | Sun #900340136 | 4,900 |
| 637151 | Apr 20, 2007 | Apr 20, 2007 | OK Arena Operating Company | Sun #800340135 | 4,900 |
| 637147 | Apr 20, 2007 | Apr 20, 2007 | OK Arena Operating Company | Sun #700340134 | 4,900 |
| 637145 | Apr 20, 2007 | Apr 20, 2007 | OK Arena Operating Company | McElreath #400340133 | 4,900 |
| 637144 | Apr 20, 2007 | Apr 20, 2007 | OK Arena Operating Company | McElreath #300340132 | 4,900 |
| 637058 | Apr 20, 2007 | Apr 20, 2007 | OK Arena Operating Company | Ford, W. T. #1600340129 | 4,900 |
| 637054 | Apr 20, 2007 | Apr 20, 2007 | OK Arena Operating Company | Ford, W. T. A #700340128 | 4,900 |
| 637128 | Apr 19, 2007 | Apr 19, 2007 | OK Arena Operating Company | J W Gowens #1600340131 | 4,900 |
| 637126 | Apr 19, 2007 | Apr 19, 2007 | OK Arena Operating Company | J W Gowens #1400340130 | 4,900 |
| 636848 | Apr 18, 2007 | Apr 18, 2007 | XTO Energy Inc. | State University AO #13HH00339153 | 11,500 |
| 636914 | Apr 17, 2007 | Apr 17, 2007 | Qualia, C. F. Operating,inc. | Hedberg Estate "F" #4SA00340127 | 4,700 |
| 636408 | Apr 17, 2007 | Apr 17, 2007 | Occidental Permian Ltd. | Ratliff & Bedford #40R00338478 | 11,250 |
| 636408Amendment | Apr 17, 2007 | Apr 17, 2007 | Occidental Permian Ltd. | Ratliff & Bedford #40R00338478 | 11,250 |
| 636867 | Apr 14, 2007 | Apr 14, 2007 | XTO Energy Inc. | State of Texas BH #800340126 | 11,000 |
| 636802 | Apr 14, 2007 | Apr 14, 2007 | Pioneer Natural Res. USA, Inc. | University "7-8" #100340125 | 11,500 |
| 636802Amendment | Apr 14, 2007 | Apr 14, 2007 | Pioneer Natural Res. USA, Inc. | University "7-8" #100340125 | 11,500 |
| 636800 | Apr 14, 2007 | Apr 14, 2007 | Pioneer Natural Res. USA, Inc. | University "7-6" #100340124 | 11,500 |
| 636800Amendment | Apr 14, 2007 | Apr 14, 2007 | Pioneer Natural Res. USA, Inc. | University "7-6" #100340124 | 11,500 |
| 636797 | Apr 14, 2007 | Apr 14, 2007 | Pioneer Natural Res. USA, Inc. | University "6-25" #100340122 | 11,500 |
| 636797Amendment | Apr 14, 2007 | Apr 14, 2007 | Pioneer Natural Res. USA, Inc. | University "6-25" #100340122 | 11,500 |
| 636789 | Apr 14, 2007 | Apr 14, 2007 | Pioneer Natural Res. USA, Inc. | University "6-17" #100340123 | 11,500 |
| 636789Amendment | Apr 14, 2007 | Apr 14, 2007 | Pioneer Natural Res. USA, Inc. | University "6-17" #100340123 | 11,500 |
| 635257 | Apr 14, 2007 | Apr 14, 2007 | Range Production Company | West Fuhrman-Mascho Unit #41500340110 | 4,900 |
| 635256 | Apr 14, 2007 | Apr 14, 2007 | Range Production Company | West Fuhrman-Mascho Unit #58200340120 | 4,900 |
| 635255 | Apr 14, 2007 | Apr 14, 2007 | Range Production Company | West Fuhrman-Mascho Unit #57700340121 | 4,900 |
| 635253 | Apr 14, 2007 | Apr 14, 2007 | Range Production Company | West Fuhrman-Mascho Unit #56700340119 | 4,900 |
| 635251 | Apr 14, 2007 | Apr 14, 2007 | Range Production Company | West Fuhrman-Mascho Unit #56300340118 | 4,900 |
| 635239 | Apr 14, 2007 | Apr 14, 2007 | Range Production Company | West Fuhrman-Mascho Unit #50500340114 | 4,900 |
| 635233 | Apr 14, 2007 | Apr 14, 2007 | Range Production Company | West Fuhrman-Mascho Unit #41400340113 | 4,900 |
| 635244 | Apr 13, 2007 | Apr 13, 2007 | Range Production Company | West Fuhrman-Mascho Unit #51000340108 | 4,900 |
| 635171 | Apr 13, 2007 | Apr 13, 2007 | XTO Energy Inc. | University F #2HH00305289 | 11,200 |
| 635249 | Apr 12, 2007 | Apr 12, 2007 | Range Production Company | West Fuhrman-Mascho Unit #56000340117 | 4,900 |
| 635246 | Apr 12, 2007 | Apr 12, 2007 | Range Production Company | West Fuhrman-Mascho Unit #51200340116 | 4,900 |
| 635241 | Apr 12, 2007 | Apr 12, 2007 | Range Production Company | West Fuhrman-Mascho Unit #50600340115 | 4,900 |
| 635230 | Apr 11, 2007 | Apr 11, 2007 | Range Production Company | West Fuhrman-Mascho Unit #41200340109 | 4,900 |
| 635228 | Apr 11, 2007 | Apr 11, 2007 | Range Production Company | West Fuhrman-Mascho Unit #40500340106 | 4,900 |
| 636353 | Apr 10, 2007 | Apr 10, 2007 | XTO Energy Inc. | University "F" #200305289 | 11,175 |
| 635710 | Apr 10, 2007 | Apr 10, 2007 | Chevron U. S. A. Inc. | Mabee Unit #367AW00340107 | 5,000 |
| 635709 | Apr 10, 2007 | Apr 10, 2007 | Chevron U. S. A. Inc. | Mabee Unit #339AW00340104 | 5,000 |
| 635708 | Apr 10, 2007 | Apr 10, 2007 | Chevron U. S. A. Inc. | Mabee Unit #46AW00340103 | 5,000 |
| 635226 | Apr 10, 2007 | Apr 10, 2007 | Range Production Company | Cox #200340105 | 4,900 |
| 636079 | Apr 9, 2007 | Apr 9, 2007 | Oilfield Management, Inc. (A) | University 6-47B #100340100 | 12,800 |
| 636098 | Apr 3, 2007 | Apr 3, 2007 | OK Arena Operating Company | Jones, R. C. #1000340102 | 4,900 |
| 636096 | Apr 3, 2007 | Apr 3, 2007 | OK Arena Operating Company | Gowens, J. W. #1200340101 | 4,900 |
| 635769 | Mar 30, 2007 | Mar 30, 2007 | OK Arena Operating Company | Kuykendall, J. W. #500340096 | 4,900 |
| 635713 | Mar 30, 2007 | Mar 30, 2007 | OK Arena Operating Company | Fleming 1,2,3 #500340095 | 4,900 |
| 635712 | Mar 30, 2007 | Mar 30, 2007 | OK Arena Operating Company | Fleming A #500340094 | 4,900 |
| 635711 | Mar 30, 2007 | Mar 30, 2007 | OK Arena Operating Company | Fleming A #400340093 | 4,900 |
| 635646 | Mar 28, 2007 | Mar 28, 2007 | OK Arena Operating Company | Thornberry B #400340092 | 4,900 |
| 633839 | Mar 28, 2007 | Mar 28, 2007 | OK Arena Operating Company | Corrigan #800340099 | 4,900 |
| 633837 | Mar 28, 2007 | Mar 28, 2007 | OK Arena Operating Company | Corrigan #700340098 | 4,900 |
| 633835 | Mar 28, 2007 | Mar 28, 2007 | OK Arena Operating Company | Corrigan #600340097 | 4,900 |
| 633831 | Mar 28, 2007 | Mar 28, 2007 | OK Arena Operating Company | Corrigan #500340078 | 4,900 |
| 635270 | Mar 26, 2007 | Mar 26, 2007 | OK Arena Operating Company | Ashton #700340088 | 4,900 |
| 635225 | Mar 26, 2007 | Mar 26, 2007 | Range Production Company | West Fuhrman-Mascho Unit #39800340087 | 4,900 |
| 634498 | Mar 26, 2007 | Mar 26, 2007 | OK Arena Operating Company | Ashton #1000340085 | 4,900 |
| 634496 | Mar 26, 2007 | Mar 26, 2007 | OK Arena Operating Company | Ashton #900340082 | 4,900 |
| 634495 | Mar 26, 2007 | Mar 26, 2007 | OK Arena Operating Company | Ashton #800340083 | 4,900 |
| 634165 | Mar 26, 2007 | Mar 26, 2007 | Conocophillips Company | Goldsmith Andector Unit #L15000340091 | 6,700 |
| 634809 | Mar 23, 2007 | Mar 23, 2007 | OK Arena Operating Company | Kuykendall, J. W. #400340086 | 4,900 |
| 634810 | Mar 22, 2007 | Mar 22, 2007 | OK Arena Operating Company | Thornberry B #300340090 | 4,900 |
| 634875 | Mar 21, 2007 | Mar 21, 2007 | XTO Energy Inc. | State University AU #700338201 | 10,690 |
| 633864 | Mar 21, 2007 | Mar 21, 2007 | OK Arena Operating Company | M A Thornberry #200340089 | 4,900 |
| 633762 | Mar 16, 2007 | Mar 16, 2007 | Chevron U. S. A. Inc. | Mabee Unit #641HH00336747 | 8,500 |
| 633873 | Mar 14, 2007 | Mar 14, 2007 | OK Arena Operating Company | Thornberry, M. A. #400340080 | 4,900 |
| 633866 | Mar 14, 2007 | Mar 14, 2007 | OK Arena Operating Company | Thornberry, M. A. #300340079 | 4,900 |
| 634490 | Mar 13, 2007 | Mar 13, 2007 | OK Arena Operating Company | Ashton #600340081 | 4,900 |
| 634488 | Mar 13, 2007 | Mar 13, 2007 | OK Arena Operating Company | Ashton #500340084 | 4,900 |
| 633481 | Mar 9, 2007 | Mar 9, 2007 | Chevron U. S. A. Inc. | Mabee Unit #114HH00306956 | 8,500 |
| 633449 | Mar 9, 2007 | Mar 9, 2007 | Stephens & Johnson Operating Co. | University "10" #1100340069 | 7,500 |
| 633437 | Mar 9, 2007 | Mar 9, 2007 | Fasken Oil and Ranch, Ltd. | Mabee Ranch "14" #100340068 | 14,000 |
| 634389 | Mar 7, 2007 | Mar 7, 2007 | Henry Petroleum LP | UNIV2 HR1 #800340076 | 11,500 |
| 634014 | Mar 5, 2007 | Mar 5, 2007 | OK Arena Operating Company | University 13-46 #700340074 | 4,900 |
| 634014Amendment | Mar 5, 2007 | Mar 5, 2007 | OK Arena Operating Company | University Lands 13-46 #700340074 | 4,900 |
| 634013 | Mar 5, 2007 | Mar 5, 2007 | OK Arena Operating Company | University 13-46 #600340075 | 4,900 |
| 634013Amendment | Mar 5, 2007 | Mar 5, 2007 | OK Arena Operating Company | University Lands "13-46" #600340075 | 4,900 |
| 634007 | Mar 5, 2007 | Mar 5, 2007 | OK Arena Operating Company | Thornberry #1000340077 | 4,900 |
| 633127 | Mar 5, 2007 | Mar 5, 2007 | Range Production Company | West Fuhrman-Mascho Unit #55500340064 | 4,900 |
| 634015 | Feb 28, 2007 | Feb 28, 2007 | OK Arena Operating Company | University 13-46 #800340071 | 4,900 |
| 634015Amendment | Feb 28, 2007 | Feb 28, 2007 | OK Arena Operating Company | University Lands "13-46" #800340071 | 4,900 |
| 634009 | Feb 28, 2007 | Feb 28, 2007 | OK Arena Operating Company | Thornberry #1200340070 | 4,900 |
| 634008 | Feb 28, 2007 | Feb 28, 2007 | OK Arena Operating Company | Thornberry #1100340072 | 4,900 |
| 634006 | Feb 28, 2007 | Feb 28, 2007 | OK Arena Operating Company | Thornberry #900340073 | 4,900 |
| 633687 | Feb 22, 2007 | Feb 22, 2007 | OK Arena Operating Company | Corrigan #400340067 | 4,900 |
| 633684 | Feb 22, 2007 | Feb 22, 2007 | OK Arena Operating Company | Cities #200340066 | 4,900 |
| 633130 | Feb 16, 2007 | Feb 16, 2007 | Range Production Company | West Fuhrman-Mascho Unit #55700340065 | 4,900 |
| 633126 | Feb 16, 2007 | Feb 16, 2007 | Range Production Company | West Fuhrman-Mascho Unit #54700340063 | 4,900 |
| 633125 | Feb 16, 2007 | Feb 16, 2007 | Range Production Company | West Fuhrman-Mascho Unit #53700340062 | 4,900 |
| 633123 | Feb 16, 2007 | Feb 16, 2007 | Range Production Company | West Fuhrman-Mascho Unit #53600340061 | 4,900 |
| 633121 | Feb 16, 2007 | Feb 16, 2007 | Range Production Company | West Fuhrman-Mascho Unit #52600340060 | 4,900 |