WHITING PETROLEUM CORPORATION (a Delaware corporation) 5,750,000 Shares of Common Stock PURCHASE AGREEMENTPurchase Agreement • September 29th, 2005 • Whiting Petroleum Corp • Crude petroleum & natural gas • New York
Contract Type FiledSeptember 29th, 2005 Company Industry JurisdictionMERRILL LYNCH & CO. Merrill Lynch, Pierce, Fenner & Smith Incorporated J.P. Morgan Securities Inc. Wachovia Capital Markets, LLC as Representatives of the several Underwriters named in Schedule A hereto