| 612284Amendment | Jan 18, 2006 | Jan 18, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W., Etal #16W | 4,000 | 47501813 |
| 612207 | Jan 17, 2006 | Jan 17, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #1482 | 4,000 | 47533460 |
| 612207Amendment | Jan 17, 2006 | Jan 17, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. Etal #1482 | 4,000 | 47533460 |
| 612193 | Jan 17, 2006 | Jan 17, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #69 | 4,000 | 47533153 |
| 612193Amendment | Jan 17, 2006 | Jan 17, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #69 | 4,000 | 47533153 |
| 612193Amendment | Jan 17, 2006 | Jan 17, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W., Etal #69W | 4,000 | 47533153 |
| 612186 | Jan 17, 2006 | Jan 17, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #70 | 4,000 | 47533152 |
| 612186Amendment | Jan 17, 2006 | Jan 17, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #70 | 4,000 | 47533152 |
| 612186Amendment | Jan 17, 2006 | Jan 17, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. Etal #70AW | 4,000 | 47533152 |
| 612184 | Jan 17, 2006 | Jan 17, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #1484 | 4,000 | 47533458 |
| 612184Amendment | Jan 17, 2006 | Jan 17, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. Etal #1484W | 4,000 | 47533458 |
| 612183 | Jan 17, 2006 | Jan 17, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #72 | 4,000 | 47533150 |
| 612183Amendment | Jan 17, 2006 | Jan 17, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #72 | 4,000 | 47533150 |
| 612183Amendment | Jan 17, 2006 | Jan 17, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W., Etal #72W | 4,000 | 47533150 |
| 612181 | Jan 17, 2006 | Jan 17, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #1483 | 4,000 | 47533459 |
| 612181Amendment | Jan 17, 2006 | Jan 17, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. et Al #1483 | 4,000 | 47533459 |
| 608900 | Jan 17, 2006 | Jan 17, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #1691 | 4,000 | 47534966 |
| 611839 | Jan 11, 2006 | Jan 11, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #638 | 4,000 | 47501716 |
| 611839Amendment | Jan 11, 2006 | Jan 11, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #638 | 4,000 | 47501716 |
| 611839Amendment | Jan 11, 2006 | Jan 11, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W., Etal #638W | 4,000 | 47501716 |
| 611836 | Jan 9, 2006 | Jan 9, 2006 | Whiting Oil and Gas Corporation | Ward | GW O'Brien #1332 | 4,000 | 47533170 |
| 611836Amendment | Jan 9, 2006 | Jan 9, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #1332 | 4,000 | 47533170 |
| 611836Amendment | Jan 9, 2006 | Jan 9, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W., Etal #1332W | 4,000 | 47533170 |
| 611833 | Jan 9, 2006 | Jan 9, 2006 | Whiting Oil and Gas Corporation | Ward | GW O'Brien #61 | 4,000 | 47532388 |
| 611833Amendment | Jan 9, 2006 | Jan 9, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #61 | 4,000 | 47532388 |
| 611833Amendment | Jan 9, 2006 | Jan 9, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W., Etal #61W | 4,000 | 47532388 |
| 611821 | Jan 6, 2006 | Jan 6, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #73 | 4,000 | 47533151 |
| 611821Amendment | Jan 6, 2006 | Jan 6, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #73 | 4,000 | 47533151 |
| 611821Amendment | Jan 6, 2006 | Jan 6, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. Etal #73 | 4,000 | 47533151 |
| 611818 | Jan 6, 2006 | Jan 6, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #57AW | 4,000 | 47532313 |
| 611818Amendment | Jan 6, 2006 | Jan 6, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #57AW | 4,000 | 47532313 |
| 611818Amendment | Jan 6, 2006 | Jan 6, 2006 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. Etal #57AW | 4,000 | 47532313 |
| 611924 | Jan 5, 2006 | Jan 5, 2006 | Whiting Oil and Gas Corporation | Andrews | University 3 #310 | 8,100 | 00339744 |
| 611920 | Jan 5, 2006 | Jan 5, 2006 | Whiting Oil and Gas Corporation | Andrews | University 2 #207 | 8,100 | 00339743 |
| 611920Amendment | Jan 5, 2006 | Jan 5, 2006 | Whiting Oil and Gas Corporation | Andrews | University 2 #207 | 8,100 | 00339743 |
| 609311 | Dec 29, 2005 | Dec 29, 2005 | Whiting Oil and Gas Corporation | Ward | Estes, E. W. #296 | 4,000 | 47535011 |
| 561295 | Dec 29, 2005 | Dec 29, 2005 | Whiting Oil and Gas Corporation | Ward | Estes, E. W. #294 | 4,000 | 47535013 |
| 611413 | Dec 22, 2005 | Dec 22, 2005 | Whiting Oil and Gas Corporation | De Witt | Straube Unit #1HH | 14,000 | 12332074 |
| 610752 | Dec 20, 2005 | Dec 20, 2005 | Whiting Oil and Gas Corporation | Ward | Estes, W. A. #147 | 4,000 | 47535034 |
| 611187 | Dec 16, 2005 | Dec 16, 2005 | Whiting Oil and Gas Corporation | Howard | Devaney #604 | 7,850 | 22735987 |
| 610890 | Dec 14, 2005 | Dec 14, 2005 | Whiting Oil and Gas Corporation | Ward | WA Estes #148 | 4,000 | 47535039 |
| 610797 | Dec 13, 2005 | Dec 13, 2005 | Whiting Oil and Gas Corporation | Winkler | O'Brien, G. W. #1714 | 4,000 | 49533159 |
| 610754 | Dec 13, 2005 | Dec 13, 2005 | Whiting Oil and Gas Corporation | Ward | Estes, W. A. #151 | 4,000 | 47535035 |
| 610754Amendment | Dec 13, 2005 | Dec 13, 2005 | Whiting Oil and Gas Corporation | Ward | Estes, W. A. #151 | 4,000 | 47535035 |
| 610757 | Dec 12, 2005 | Dec 12, 2005 | Whiting Oil and Gas Corporation | Ward | Estes, W. A. #152 | 4,000 | 47535037 |
| 610755 | Dec 12, 2005 | Dec 12, 2005 | Whiting Oil and Gas Corporation | Ward | Estes, W. A. #146 | 4,000 | 47535036 |
| 610751 | Dec 12, 2005 | Dec 12, 2005 | Whiting Oil and Gas Corporation | Ward | Estes, W. A. #149 | 4,000 | 47535033 |
| 610748 | Dec 12, 2005 | Dec 12, 2005 | Whiting Oil and Gas Corporation | Ward | Estes, W. A. #150 | 4,000 | 47535032 |
| 610560 | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #68 | 4,000 | 47533156 |
| 610560Amendment | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #68 | 4,000 | 47533156 |
| 610560Amendment | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. Etal #68AW | 4,000 | 47533156 |
| 610557 | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #67 | 4,000 | 47533162 |
| 610557Amendment | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #67 | 4,000 | 47533162 |
| 610557Amendment | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. Etal #67 | 4,000 | 47533162 |
| 610555 | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #55 | 4,000 | 47532315 |
| 610555Amendment | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #55 | 4,000 | 47532315 |
| 610555Amendment | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. Etal #55WI | 4,000 | 47532315 |
| 610504 | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #1088 | 4,000 | 47530013 |
| 610504Amendment | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W., Etal #1088W | 4,000 | 47530013 |
| 610502 | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #427 | 4,000 | 47501863 |
| 610502Amendment | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #427 | 4,000 | 47501863 |
| 610502Amendment | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W., Etal #427W | 4,000 | 47501863 |
| 610501 | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #421 | 4,000 | 47501859 |
| 610501Amendment | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #421 | 4,000 | 47501859 |
| 610501Amendment | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. Etal #421WI | 4,000 | 47501859 |
| 610499 | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #193 | 4,000 | 47501630 |
| 610499Amendment | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #193 | 4,000 | 47501630 |
| 610499Amendment | Dec 8, 2005 | Dec 8, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W., Etal #193W | 4,000 | 47501630 |
| 610682 | Dec 7, 2005 | Dec 7, 2005 | Whiting Oil and Gas Corporation | Winkler | Keystone Cattle Co. #500 | 11,500 | 49533158 |
| 610503 | Dec 7, 2005 | Dec 7, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #431 | 4,000 | 47501867 |
| 610503Amendment | Dec 7, 2005 | Dec 7, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #431 | 4,000 | 47501867 |
| 610503Amendment | Dec 7, 2005 | Dec 7, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. Etal #431W | 4,000 | 47501867 |
| 610496 | Dec 7, 2005 | Dec 7, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #848 | 4,000 | 47510273 |
| 610496Amendment | Dec 7, 2005 | Dec 7, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #848 | 4,000 | 47510273 |
| 610495 | Dec 7, 2005 | Dec 7, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #17 | 4,000 | 47510266 |
| 610495Amendment | Dec 7, 2005 | Dec 7, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. Etal #17 | 4,000 | 47510266 |
| 610486 | Dec 7, 2005 | Dec 7, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #15 | 4,000 | 47510265 |
| 610486Amendment | Dec 7, 2005 | Dec 7, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. et Al #15 | 4,000 | 47510265 |
| 610484 | Dec 7, 2005 | Dec 7, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #1477 | 4,000 | 47533465 |
| 610484Amendment | Dec 7, 2005 | Dec 7, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W., Etal #1477 | 4,000 | 47533465 |
| 610591 | Dec 6, 2005 | Dec 6, 2005 | Whiting Oil and Gas Corporation | Howard | Barber 1 #108 | 7,850 | 22735986 |
| 610432 | Dec 6, 2005 | Dec 6, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #34 | 4,000 | 47530454 |
| 610432Amendment | Dec 6, 2005 | Dec 6, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W., et Al #34 | 4,000 | 47530454 |
| 610430 | Dec 6, 2005 | Dec 6, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #56 | 4,000 | 47532314 |
| 610430Amendment | Dec 6, 2005 | Dec 6, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W., Etal #56 | 4,000 | 47532314 |
| 610269 | Dec 2, 2005 | Dec 2, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #1311 | 4,000 | 47533220 |
| 610269Amendment | Dec 2, 2005 | Dec 2, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #1311 | 4,000 | 47533220 |
| 610269Amendment | Dec 2, 2005 | Dec 2, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W., et Al #1311 | 4,000 | 47533220 |
| 610267 | Dec 2, 2005 | Dec 2, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #1306 | 4,000 | 47533227 |
| 610267Amendment | Dec 2, 2005 | Dec 2, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #1306 | 4,000 | 47533227 |
| 610267Amendment | Dec 2, 2005 | Dec 2, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W., Etal #1306W | 4,000 | 47533227 |
| 610265 | Dec 2, 2005 | Dec 2, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #1305 | 4,000 | 47533213 |
| 610265Amendment | Dec 2, 2005 | Dec 2, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #1305 | 4,000 | 47533213 |
| 610265Amendment | Dec 2, 2005 | Dec 2, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W., Etal #1305W | 4,000 | 47533213 |
| 610263 | Dec 2, 2005 | Dec 2, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #1304 | 4,000 | 47533214 |
| 610263Amendment | Dec 2, 2005 | Dec 2, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #1304 | 4,000 | 47533214 |
| 610263Amendment | Dec 2, 2005 | Dec 2, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #1304 | 4,000 | 47533214 |
| 610262 | Dec 2, 2005 | Dec 2, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #1089 | 4,000 | 47530010 |
| 610262Amendment | Dec 2, 2005 | Dec 2, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #1089 | 4,000 | 47530010 |
| 610262Amendment | Dec 2, 2005 | Dec 2, 2005 | Whiting Oil and Gas Corporation | Ward | O'Brien, G. W. #1089 | 4,000 | 47530010 |