X0303 4 2009-12-18 0 0001104485 NORTHERN OIL & GAS, INC. N O G 0001394821 GILBERTSON RYAN RANDALL 315 MANITOBA AVE 200 WAYZATA MN 55391 1 1 0 0 C.- F.- O.- Common Stock 2009-12-18 4 S 0 50000 11.43 D 638313 D Common Stock 280000 I By LLC Reflects the weighted average price of 50,000 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on December 18, 2009 with sale prices ranging from $11.35 to $11.59 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares purchased or sold at each separate price. /s/ James Sankovitz, attorney in fact 2009-12-22