| 633120 | Feb 16, 2007 | Feb 16, 2007 | Range Production Company | West Fuhrman-Mascho Unit #51900340059 | 4,900 |
| 633077 | Feb 16, 2007 | Feb 16, 2007 | Range Production Company | West Fuhrman-Mascho Unit #50700340053 | 4,900 |
| 633469 | Feb 14, 2007 | Feb 14, 2007 | Stephens & Johnson Operating Co. | University "A" #1500340055 | 7,500 |
| 633447 | Feb 14, 2007 | Feb 14, 2007 | Stephens & Johnson Operating Co. | University "10" #1000340054 | 7,500 |
| 633133 | Feb 14, 2007 | Feb 14, 2007 | Range Production Company | West Fuhrman-Mascho Unit #58000340056 | 4,900 |
| 633132 | Feb 14, 2007 | Feb 14, 2007 | Range Production Company | West Fuhrman-Mascho Unit #57600340058 | 4,900 |
| 633131 | Feb 14, 2007 | Feb 14, 2007 | Range Production Company | West Fuhrman-Mascho Unit #56900340057 | 4,900 |
| 633076 | Feb 14, 2007 | Feb 14, 2007 | Range Production Company | West Fuhrman-Mascho Unit #41600340052 | 4,900 |
| 633276 | Feb 10, 2007 | Feb 10, 2007 | OK Arena Operating Company | Thornberry Consolidated I #1600340051 | 4,900 |
| 633069 | Feb 8, 2007 | Feb 8, 2007 | XTO Energy Inc. | Texas N #700338715 | 10,700 |
| 632949 | Feb 7, 2007 | Feb 7, 2007 | Pioneer Natural Res. USA, Inc. | University "7-18" #100340050 | 10,500 |
| 632949Amendment | Feb 7, 2007 | Feb 7, 2007 | Pioneer Natural Res. USA, Inc. | University "7-18" #100340050 | 10,500 |
| 632038 | Feb 7, 2007 | Feb 7, 2007 | Forest Oil Corporation | Phillips University O #1000340046 | 8,500 |
| 632036 | Feb 7, 2007 | Feb 7, 2007 | Forest Oil Corporation | Phillips University O #900340045 | 8,500 |
| 632034 | Feb 7, 2007 | Feb 7, 2007 | Forest Oil Corporation | Phillips University P #1400340047 | 7,975 |
| 632031 | Feb 7, 2007 | Feb 7, 2007 | Forest Oil Corporation | Phillips University 15-11 #500341772 | 8,500 |
| 631935 | Feb 7, 2007 | Feb 7, 2007 | Range Production Company | Lockhart & Brown 14 #1700306515 | 4,250 |
| 632945 | Feb 6, 2007 | Feb 6, 2007 | Pioneer Natural Res. USA, Inc. | University "7-11" #100340049 | 10,500 |
| 632945Amendment | Feb 6, 2007 | Feb 6, 2007 | Pioneer Natural Res. USA, Inc. | University "7-11" #100340049 | 10,500 |
| 632732 | Feb 5, 2007 | Feb 5, 2007 | Samson Lone Star LP | University 7004 #100340048 | 14,000 |
| 632700 | Feb 2, 2007 | Feb 2, 2007 | Samson Lone Star LP | University 5036 #100340043 | 11,500 |
| 632700Amendment | Feb 2, 2007 | Feb 2, 2007 | Samson Lone Star, LLC | University 5036 #100340043 | 11,500 |
| 631864 | Jan 29, 2007 | Jan 29, 2007 | Range Production Company | West Fuhrman-Mascho Unit #39700340038 | 4,900 |
| 631863 | Jan 29, 2007 | Jan 29, 2007 | Range Production Company | West Fuhrman-Mascho Unit #39600340037 | 4,900 |
| 631862 | Jan 29, 2007 | Jan 29, 2007 | Range Production Company | West Fuhrman-Mascho #39400340036 | 4,900 |
| 631861 | Jan 29, 2007 | Jan 29, 2007 | Range Production Company | West Fuhrman-Mascho Unit #38100340035 | 4,900 |
| 631860 | Jan 29, 2007 | Jan 29, 2007 | Range Production Company | West Fuhrman-Mascho Unit #38000340040 | 4,900 |
| 632408 | Jan 26, 2007 | Jan 26, 2007 | Raw Oil & Gas, Inc. | Umgawa #2R00300462 | 5,000 |
| 632407 | Jan 26, 2007 | Jan 26, 2007 | Chesapeake Operating, Inc. | University 7-19 #100340042 | 12,000 |
| 632407Amendment | Jan 26, 2007 | Jan 26, 2007 | Chesapeake Operating, Inc. | University 7-19 #100340042 | 12,000 |
| 632404 | Jan 26, 2007 | Jan 26, 2007 | Chesapeake Operating, Inc. | University 7-32 #300340041 | 12,000 |
| 631865 | Jan 24, 2007 | Jan 24, 2007 | Range Production Company | West Fuhrman-Mascho Unit #37800340039 | 4,900 |
| 632165 | Jan 23, 2007 | Jan 23, 2007 | Burleson, Lewis B. Inc. | Prairie Schooner University #100340034 | 8,700 |
| 631999 | Jan 22, 2007 | Jan 22, 2007 | Forest Oil Corporation | Phillips University 11 #300340032 | 8,500 |
| 632027 | Jan 19, 2007 | Jan 19, 2007 | Forest Oil Corporation | Phillips University P #1500340033 | 8,000 |
| 632027Amendment | Jan 19, 2007 | Jan 19, 2007 | Forest Oil Corporation | Phillips University P #1500340033 | 7,975 |
| 630696 | Jan 19, 2007 | Jan 19, 2007 | Phoenix Petrocorp, Inc. | South Fuhrman-Mascho Unit #89200340015 | 5,000 |
| 631687 | Jan 18, 2007 | Jan 18, 2007 | OK Arena Operating Company | University 13-46 #500340031 | 4,900 |
| 631687Amendment | Jan 18, 2007 | Jan 18, 2007 | OK Arena Operating Company | University 13-46 #500340031 | 4,900 |
| 631694 | Jan 17, 2007 | Jan 17, 2007 | OK Arena Operating Company | University 47 #700340030 | 4,900 |
| 631690 | Jan 11, 2007 | Jan 11, 2007 | OK Arena Operating Company | University 47A #600340029 | 4,900 |
| 631556 | Jan 11, 2007 | Jan 11, 2007 | OK Arena Operating Company | Thornberry Consolidated II #1600340026 | 4,900 |
| 631554 | Jan 11, 2007 | Jan 11, 2007 | OK Arena Operating Company | Thornberry Consolidated II #1500340027 | 4,900 |
| 628079 | Jan 11, 2007 | Jan 11, 2007 | Citation Oil & Gas Corp. | King, E. F. #4B00305206 | 6,050 |
| 631568 | Jan 10, 2007 | Jan 10, 2007 | Fasken Oil and Ranch, Ltd. | Fee "AO" #100340028 | 14,500 |
| 630709 | Jan 10, 2007 | Jan 10, 2007 | OK Arena Operating Company | CC Lockhart & Brown "AA" #500340025 | 4,900 |
| 630017 | Jan 10, 2007 | Jan 10, 2007 | Eastland Oil Company, The | Linaka "A" #300310040 | 7,600 |
| 630017Amendment | Jan 10, 2007 | Jan 10, 2007 | Eastland Oil Company, The | Linaka A #300310040 | 11,000 |
| 629193 | Jan 9, 2007 | Jan 9, 2007 | Encore Operating, L.P. | Ford, W. T. "C" #2800340001 | 4,800 |
| 630181 | Jan 8, 2007 | Jan 8, 2007 | OK Arena Operating Company | Seidel #1400340006 | 4,900 |
| 631371 | Jan 5, 2007 | Jan 5, 2007 | OK Arena Operating Company | Leona B #300340023 | 4,900 |
| 631369 | Jan 5, 2007 | Jan 5, 2007 | OK Arena Operating Company | Leona D #200340024 | 4,900 |
| 630180 | Jan 4, 2007 | Jan 4, 2007 | OK Arena Operating Company | Seidel #1300340005 | 4,900 |
| 630179 | Jan 4, 2007 | Jan 4, 2007 | OK Arena Operating Company | Seidel #1200340004 | 4,900 |
| 630177 | Jan 4, 2007 | Jan 4, 2007 | OK Arena Operating Company | Seidel #1100340003 | 4,900 |
| 631203 | Jan 3, 2007 | Jan 3, 2007 | Hunt Oil Company | White, J. M. #1000338828 | 7,008 |
| 631200 | Jan 3, 2007 | Jan 3, 2007 | Hunt Oil Company | White, J. M. #900338856 | 7,030 |
| 631194 | Jan 3, 2007 | Jan 3, 2007 | Hunt Oil Company | White, J. M. #800338827 | 7,000 |
| 621015 | Jan 3, 2007 | Jan 3, 2007 | Satanta Oil Company | University 32 A #100304999 | 6,400 |
| 631105 | Dec 29, 2006 | Dec 29, 2006 | OK Arena Operating Company | Munger Nix 18 #2600340022 | 4,900 |
| 631104 | Dec 29, 2006 | Dec 29, 2006 | OK Arena Operating Company | Munger Nix 18 #2500340021 | 4,900 |
| 631099 | Dec 29, 2006 | Dec 29, 2006 | OK Arena Operating Company | Munger Nix 18 #2400340020 | 4,900 |
| 631097 | Dec 28, 2006 | Dec 28, 2006 | OK Arena Operating Company | Zeismer #300340019 | 4,900 |
| 631096 | Dec 28, 2006 | Dec 28, 2006 | OK Arena Operating Company | Thornberry Consolidated III #1700340018 | 4,900 |
| 631094 | Dec 28, 2006 | Dec 28, 2006 | OK Arena Operating Company | Thornberry Consolidated III #1600340017 | 4,900 |
| 629708 | Dec 28, 2006 | Dec 28, 2006 | XTO Energy Inc. | State of Texas CR #2HH00307399 | 11,100 |
| 630697 | Dec 19, 2006 | Dec 19, 2006 | Phoenix Petrocorp, Inc. | South Fuhrman-Mascho Unit #88200340014 | 5,000 |
| 630693 | Dec 19, 2006 | Dec 19, 2006 | Phoenix Petrocorp, Inc. | South Fuhrman-Mascho Unit #88600340016 | 5,000 |
| 630645 | Dec 18, 2006 | Dec 18, 2006 | OXY USA WTP LP | Queenbee #100340013 | 10,000 |
| 630612 | Dec 15, 2006 | Dec 15, 2006 | Chesapeake Operating, Inc. | University 7-10 #200340012 | 12,000 |
| 630612Amendment | Dec 15, 2006 | Dec 15, 2006 | Chesapeake Operating, Inc. | University 7-10 #200340012 | 12,000 |
| 630563 | Dec 15, 2006 | Dec 15, 2006 | Cimarex Energy Co. of Colorado | Cowden, Emma Tract -C- #3400305245 | 6,300 |
| 630561 | Dec 15, 2006 | Dec 15, 2006 | Cimarex Energy Co. of Colorado | Cowden, Emma Tract -C- #7200340011 | 6,300 |
| 630560 | Dec 15, 2006 | Dec 15, 2006 | Cimarex Energy Co. of Colorado | Cowden, Emma Tract -C- #7100340010 | 6,300 |
| 630560Amendment | Dec 15, 2006 | Dec 15, 2006 | Cimarex Energy Co. of Colorado | Cowden, Emma Tract -C- #7100340010 | 6,300 |
| 629179 | Dec 15, 2006 | Dec 15, 2006 | Encore Operating, L.P. | Ford, W. T. "C" #2600340000 | 4,800 |
| 630144 | Dec 13, 2006 | Dec 13, 2006 | OK Arena Operating Company | Thornberry 7 #600340009 | 4,900 |
| 629926 | Dec 13, 2006 | Dec 13, 2006 | OK Arena Operating Company | Knight Watson #600340008 | 4,900 |
| 630236 | Dec 11, 2006 | Dec 11, 2006 | Cimarex Energy Co. of Colorado | Cowden, Emma Tract -C- #6900340007 | 6,300 |
| 627576 | Dec 8, 2006 | Dec 8, 2006 | Range Production Company | West Fuhrman-Mascho Unit #39300339968 | 4,900 |
| 630077 | Dec 6, 2006 | Dec 6, 2006 | Energen Resources Corporation | University "14-A" #100337002 | 5,500 |
| 629113 | Dec 6, 2006 | Dec 6, 2006 | Thompson, J. Cleo | Brown A #400339999 | 4,700 |
| 628884 | Dec 6, 2006 | Dec 6, 2006 | XTO Energy Inc. | State University BA #1500339993 | 5,300 |
| 628881 | Dec 6, 2006 | Dec 6, 2006 | XTO Energy Inc. | State Univerisity BA #1600339992 | 5,300 |
| 629959 | Dec 5, 2006 | Dec 5, 2006 | Parallel Petroleum Corporation | Iverson #200340002 | 5,000 |
| 629959Amendment | Dec 5, 2006 | Dec 5, 2006 | Parallel Petroleum Corporation | Iverson #200340002 | 5,000 |
| 629563 | Nov 29, 2006 | Nov 29, 2006 | Parallel Petroleum Corporation | Allar #100339998 | 5,000 |
| 629076 | Nov 28, 2006 | Nov 28, 2006 | Conocophillips Company | Goldsmith Andector Unit #K15000339997 | 6,700 |
| 628967 | Nov 28, 2006 | Nov 28, 2006 | Conocophillips Company | Goldsmith Andector Unit #J15000339996 | 6,700 |
| 629396 | Nov 21, 2006 | Nov 21, 2006 | Thompson, J. Cleo | Brown A #500339995 | 4,700 |
| 627506 | Nov 21, 2006 | Nov 21, 2006 | XTO Energy Inc. | University 9B #8HH00338384 | 10,600 |
| 629178 | Nov 17, 2006 | Nov 17, 2006 | Henry Petroleum LP | UNIV2 HR5 #500339994 | 11,500 |
| 629178Amendment | Nov 17, 2006 | Nov 17, 2006 | Henry Petroleum LP | UNIV2 HR5 #500339994 | 11,500 |
| 629178Amendment | Nov 17, 2006 | Nov 17, 2006 | Henry Petroleum LP | UNIV2 HR5 #500339994 | 11,500 |
| 628432 | Nov 16, 2006 | Nov 16, 2006 | OK Arena Operating Company | Munger Nix 18 #2300339986 | 4,900 |
| 628249 | Nov 14, 2006 | Nov 14, 2006 | OK Arena Operating Company | Sam "B" #200339980 | 4,900 |
| 628460 | Nov 13, 2006 | Nov 13, 2006 | OK Arena Operating Company | Munger Nix 19 #4B00339991 | 4,900 |
| 628451 | Nov 10, 2006 | Nov 10, 2006 | OK Arena Operating Company | Thornberry 7N #700339990 | 4,900 |
| 628448 | Nov 10, 2006 | Nov 10, 2006 | OK Arena Operating Company | Thornberry 7N #600339989 | 4,900 |
| 628447 | Nov 10, 2006 | Nov 10, 2006 | OK Arena Operating Company | Olsen #400339988 | 4,900 |