| 628447Amendment | Nov 10, 2006 | Nov 10, 2006 | OK Arena Operating Company | Olsen #400339988 | 4,900 |
| 628435 | Nov 10, 2006 | Nov 10, 2006 | OK Arena Operating Company | Knight Watson #500339987 | 4,900 |
| 628412 | Nov 10, 2006 | Nov 10, 2006 | OK Arena Operating Company | Thornberry 5B #200339985 | 4,900 |
| 628247 | Nov 10, 2006 | Nov 10, 2006 | OK Arena Operating Company | Sam #200339979 | 4,900 |
| 628431 | Nov 9, 2006 | Nov 9, 2006 | OK Arena Operating Company | Munger Nix 18 #2100339984 | 4,900 |
| 628250 | Nov 7, 2006 | Nov 7, 2006 | OK Arena Operating Company | C. C. Cities Service AA #200339981 | 4,900 |
| 628245 | Nov 7, 2006 | Nov 7, 2006 | OK Arena Operating Company | Stuckert #400339978 | 4,900 |
| 628429 | Nov 6, 2006 | Nov 6, 2006 | OK Arena Operating Company | Munger Nix 18 #2200339983 | 4,900 |
| 628161 | Nov 6, 2006 | Nov 6, 2006 | Chevron Midcontinent, L.P. | Dollarhide Unit #2621D00304839 | 8,598 |
| 628362 | Nov 3, 2006 | Nov 3, 2006 | Range Production Company | West Fuhrman-Mascho Unit #20400339976 | 4,900 |
| 627575 | Nov 2, 2006 | Nov 2, 2006 | Range Production Company | West Fuhrman-Mascho Unit #40100339967 | 4,900 |
| 628387 | Nov 1, 2006 | Nov 1, 2006 | Triumph Exploration, Inc. | Hillbilly #300339982 | 4,900 |
| 628363 | Nov 1, 2006 | Nov 1, 2006 | Range Production Company | West Fuhrman-Mascho #54R00339977 | 4,900 |
| 627974 | Oct 30, 2006 | Oct 30, 2006 | Pacesetter Energy, Inc. | University "14" #100305984 | 4,798 |
| 628118 | Oct 26, 2006 | Oct 26, 2006 | OK Arena Operating Company | University 47 #500339975 | 4,900 |
| 628007 | Oct 24, 2006 | Oct 24, 2006 | Encore Operating, L.P. | Ford, W. T "B" #1000335818 | 9,454 |
| 627590 | Oct 24, 2006 | Oct 24, 2006 | COG Operating LLC | Bitler Lowe Clearfork Unit #3200339969 | 8,000 |
| 627572 | Oct 24, 2006 | Oct 24, 2006 | COG Operating LLC | Bitler Lowe Clearfork Unit #2900339970 | 8,000 |
| 627580 | Oct 23, 2006 | Oct 23, 2006 | Range Production Company | West Fuhrman-Mascho Unit #57800339964 | 4,900 |
| 627579 | Oct 23, 2006 | Oct 23, 2006 | Range Production Company | West Fuhrman-Mascho Unit #57400339965 | 4,900 |
| 627577 | Oct 23, 2006 | Oct 23, 2006 | Range Production Company | West Fuhrman-Mascho Unit #36000339966 | 4,900 |
| 627573 | Oct 23, 2006 | Oct 23, 2006 | COG Operating LLC | Bitler Lowe B #1700339972 | 8,000 |
| 627571 | Oct 23, 2006 | Oct 23, 2006 | COG Operating LLC | M. R. Lowe 15 #200339971 | 8,000 |
| 627498 | Oct 23, 2006 | Oct 23, 2006 | Merit Energy Company | Texas -AA- #1000336360 | 8,600 |
| 627818 | Oct 19, 2006 | Oct 19, 2006 | OK Arena Operating Company | University 16 #900339974 | 4,900 |
| 627817 | Oct 19, 2006 | Oct 19, 2006 | OK Arena Operating Company | University 13-46 #400339973 | 4,900 |
| 627817Amendment | Oct 19, 2006 | Oct 19, 2006 | OK Arena Operating Company | University 13-46 #400339973 | 4,900 |
| 627731 | Oct 18, 2006 | Oct 18, 2006 | COG Operating LLC | Southland Royalty D #400339716 | 9,515 |
| 624494 | Oct 18, 2006 | Oct 18, 2006 | Energen Resources Corporation | University "14-A" #600339936 | 9,000 |
| 627029 | Oct 17, 2006 | Oct 17, 2006 | Conocophillips Company | University Andrews #8300304789 | 6,325 |
| 627509 | Oct 13, 2006 | Oct 13, 2006 | COG Operating LLC | Lowe, M. R. 15 #300339963 | 8,000 |
| 620259 | Oct 11, 2006 | Oct 11, 2006 | Minihan Oil & Gas Ltd. | University Southern Minerals #800339155 | 7,621 |
| 627248 | Oct 10, 2006 | Oct 10, 2006 | OXY USA WTP LP | University YZ #3 HH00300772 | 9,950 |
| 627248Amendment | Oct 10, 2006 | Oct 10, 2006 | OXY USA WTP LP | University YZ #3 HH00300772 | 9,950 |
| 626900 | Oct 3, 2006 | Oct 3, 2006 | Parallel Petroleum Corporation | Florence #100339962 | 5,000 |
| 626820 | Sep 29, 2006 | Sep 29, 2006 | Range Production Company | West Fuhrman-Mascho Unit #50400339961 | 4,900 |
| 626788 | Sep 29, 2006 | Sep 29, 2006 | Texland Petroleum, L.P. | Lineberry Unit #6B00339960 | 4,800 |
| 626344 | Sep 28, 2006 | Sep 28, 2006 | Fasken Oil and Ranch, Ltd. | Fee "Al" #100339253 | 11,140 |
| 626212 | Sep 27, 2006 | Sep 27, 2006 | Texland Petroleum, L.P. | Scarborough (San Andres) Unit #203600339958 | 4,800 |
| 626054 | Sep 27, 2006 | Sep 27, 2006 | Burleson, Lewis B. Inc. | Logsdon A #200339959 | 8,700 |
| 625940 | Sep 27, 2006 | Sep 27, 2006 | OK Arena Operating Company | Gindorf #300339953 | 4,900 |
| 625087 | Sep 27, 2006 | Sep 27, 2006 | Cambrian Management Ltd | State University -BH- #100302539 | 10,320 |
| 625087Amendment | Sep 27, 2006 | Sep 27, 2006 | E.G.L. Resources, Inc. | State University -BH- #100302539 | 10,574 |
| 626352 | Sep 22, 2006 | Sep 22, 2006 | Lothian Oil Texas I, Inc. | Casselman #100334801 | 11,615 |
| 626170 | Sep 22, 2006 | Sep 22, 2006 | Texland Petroleum, L.P. | Scarborough (San Andres) Unit #115100339957 | 4,800 |
| 625941 | Sep 21, 2006 | Sep 21, 2006 | OK Arena Operating Company | Stuckert #300339952 | 4,900 |
| 624411 | Sep 21, 2006 | Sep 21, 2006 | Energen Resources Corporation | University "14-A" #500339935 | 9,000 |
| 625911 | Sep 20, 2006 | Sep 20, 2006 | Citation Oil & Gas Corp. | King, E. F. #2700339951 | 6,100 |
| 625909 | Sep 20, 2006 | Sep 20, 2006 | Citation Oil & Gas Corp. | King, E. F. #2600339950 | 6,100 |
| 625871 | Sep 20, 2006 | Sep 20, 2006 | OK Arena Operating Company | Bassel #1000339956 | 4,800 |
| 625869 | Sep 20, 2006 | Sep 20, 2006 | OK Arena Operating Company | Bassel #900339955 | 4,800 |
| 625868 | Sep 20, 2006 | Sep 20, 2006 | OK Arena Operating Company | Ehrig #400339947 | 4,800 |
| 625864 | Sep 20, 2006 | Sep 20, 2006 | OK Arena Operating Company | Gowens, J. W. #1300339946 | 4,800 |
| 624879 | Sep 20, 2006 | Sep 20, 2006 | Qualia, C. F. Operating,inc. | Allar "8" #3SA00339949 | 4,650 |
| 626164 | Sep 19, 2006 | Sep 19, 2006 | Texland Petroleum, L.P. | Scarborough (San Andres) Unit #112500339954 | 4,800 |
| 626043 | Sep 18, 2006 | Sep 18, 2006 | Burleson, Lewis B. Inc. | State of Texas EM #500339948 | 6,400 |
| 625853 | Sep 14, 2006 | Sep 14, 2006 | Bass Enterprises Production Co. | University 38 BQ #100339382 | 13,000 |
| 625505 | Sep 14, 2006 | Sep 14, 2006 | Texland Petroleum, L.P. | Scarborough (San Andres) Unit #114300339945 | 4,800 |
| 625504 | Sep 14, 2006 | Sep 14, 2006 | Texland Petroleum, L.P. | Scarborough Unit #117200339944 | 4,800 |
| 620237 | Sep 14, 2006 | Sep 14, 2006 | Forest Oil Corporation | University Atp #1000338833 | 8,100 |
| 625318 | Sep 8, 2006 | Sep 8, 2006 | Thompson, J. Cleo | University 8-2 #2H00338183 | 13,200 |
| 625091 | Sep 8, 2006 | Sep 8, 2006 | Range Production Company | West Fuhrman-Mascho Unit #35800339941 | 4,900 |
| 625094 | Sep 1, 2006 | Sep 1, 2006 | Range Production Company | West Fuhrman-Mascho Unit #36100339943 | 4,900 |
| 625092 | Sep 1, 2006 | Sep 1, 2006 | Range Production Company | West Fuhrman-Mascho Unit #35900339942 | 4,900 |
| 625280 | Aug 31, 2006 | Aug 31, 2006 | Raw Oil & Gas, Inc. | Umgawa #1R00300594 | 5,200 |
| 625090 | Aug 31, 2006 | Aug 31, 2006 | Range Production Company | West Fuhrman-Mascho Unit #50300339940 | 4,900 |
| 625089 | Aug 31, 2006 | Aug 31, 2006 | Range Production Company | West Fuhrman-Mascho Unit #50200339939 | 4,900 |
| 625088 | Aug 29, 2006 | Aug 29, 2006 | Range Production Company | West Fuhrman-Mascho #50100339938 | 4,900 |
| 624876 | Aug 24, 2006 | Aug 24, 2006 | Raw Oil & Gas, Inc. | Hair of the Dog #1HH00339680 | 5,200 |
| 624876Amendment | Aug 24, 2006 | Aug 24, 2006 | Raw Oil & Gas, Inc. | Hair of the Dog #1HH00339680 | 5,200 |
| 624546 | Aug 23, 2006 | Aug 23, 2006 | Thompson, J. Cleo | Brown A #300339937 | 4,700 |
| 624186 | Aug 23, 2006 | Aug 23, 2006 | COG Operating LLC | Humble King #3G00339932 | 6,500 |
| 624189 | Aug 17, 2006 | Aug 17, 2006 | COG Operating LLC | Hayden Miles B #7G00339933 | 6,500 |
| 624188 | Aug 17, 2006 | Aug 17, 2006 | COG Operating LLC | Hayden Miles B #6G00339934 | 6,500 |
| 624185 | Aug 17, 2006 | Aug 17, 2006 | COG Operating LLC | Deep Rock et Al #10G00339931 | 6,500 |
| 624127 | Aug 17, 2006 | Aug 17, 2006 | COG Operating LLC | Hayden Miles A #7G00339930 | 6,500 |
| 623531 | Aug 17, 2006 | Aug 17, 2006 | Range Production Company | West Fuhrman-Mascho #21200339916 | 4,900 |
| 624105 | Aug 16, 2006 | Aug 16, 2006 | Range Production Company | West Fuhrman-Mascho Unit #19900339929 | 4,900 |
| 624191 | Aug 11, 2006 | Aug 11, 2006 | XTO Energy Inc. | Texas N #7HH00338715 | 10,700 |
| 624187 | Aug 11, 2006 | Aug 11, 2006 | XTO Energy Inc. | State University AU #5HH00334570 | 10,500 |
| 624187Amendment | Aug 11, 2006 | Aug 11, 2006 | XTO Energy Inc. | University Block 9 #5AUH00334570 | 10,500 |
| 624098 | Aug 10, 2006 | Aug 10, 2006 | Cimarex Energy Co. of Colorado | Cowden, Emma -C- #6700339926 | 5,600 |
| 624098Amendment | Aug 10, 2006 | Aug 10, 2006 | Cimarex Energy Co. of Colorado | Cowden, Emma Tract -C- #6700339926 | 6,300 |
| 624097 | Aug 10, 2006 | Aug 10, 2006 | Cimarex Energy Co. of Colorado | Cowden, Emma Tract -C- #6800339925 | 5,600 |
| 624097Amendment | Aug 10, 2006 | Aug 10, 2006 | Cimarex Energy Co. of Colorado | Cowden, Emma Tract -C- #6800339925 | 6,300 |
| 624096 | Aug 10, 2006 | Aug 10, 2006 | Cimarex Energy Co. of Colorado | Cowden, Emma Tract -C- #7000339927 | 5,600 |
| 624096Amendment | Aug 10, 2006 | Aug 10, 2006 | Cimarex Energy Co. of Colorado | Cowden, Emma Tract -C- #7000339927 | 6,300 |
| 624113 | Aug 9, 2006 | Aug 9, 2006 | COG Operating LLC | Hayden Miles A #6G00339928 | 6,000 |
| 623613 | Aug 4, 2006 | Aug 4, 2006 | Thompson, J. Cleo | Block 9 Fuhrman-Mascho Unit #17000339924 | 4,700 |
| 623612 | Aug 4, 2006 | Aug 4, 2006 | Thompson, J. Cleo | Block 9 Fuhrman-Mascho Unit #16900339923 | 4,700 |
| 623612Amendment | Aug 4, 2006 | Aug 4, 2006 | Thompson, J. Cleo | Block 9 Fuhrman-Mascho Unit #16900339923 | 4,700 |
| 623603 | Aug 4, 2006 | Aug 4, 2006 | Thompson, J. Cleo | Block 9 Fuhrman-Mascho Unit #16800339922 | 4,700 |
| 623597 | Aug 4, 2006 | Aug 4, 2006 | Thompson, J. Cleo | Block 9 Fuhrman-Mascho Unit #16700339921 | 4,700 |
| 623592 | Aug 4, 2006 | Aug 4, 2006 | Thompson, J. Cleo | Block 9 Fuhrman-Mascho Unit #16600339920 | 4,700 |
| 623590 | Aug 4, 2006 | Aug 4, 2006 | Thompson, J. Cleo | Block 9 Fuhrman-Mascho Unit #16500339919 | 4,700 |
| 623588 | Aug 4, 2006 | Aug 4, 2006 | Thompson, J. Cleo | Block 9 Fuhrman-Mascho Unit #16400339918 | 4,700 |
| 623532 | Aug 4, 2006 | Aug 4, 2006 | Range Production Company | Lockhart & Brown 16 #400339917 | 4,900 |
| 623530 | Aug 4, 2006 | Aug 4, 2006 | Range Production Company | West Fuhrman-Mascho Unit #20300339915 | 4,900 |
| 623529 | Aug 4, 2006 | Aug 4, 2006 | Range Production Company | West Fuhrman-Mascho Unit #20200339914 | 4,900 |
| 623526 | Aug 4, 2006 | Aug 4, 2006 | Range Production Company | West Fuhrman-Mascho Unit #20100339913 | 4,900 |