X0306 4 2021-11-12 false 0001255474 WHITING PETROLEUM CORP WLL 0001597380 Rice Daniel J. IV 1700 LINCOLN STREET SUITE 4700 DENVER CO 80203 true false false false Common Stock 2021-11-12 4 P false 470.00 67.0993 A 10539.00 D Common Stock 2021-11-12 4 P false 14680.00 67.6765 A 25219.00 D The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $66.655 to $67.11. The reporting person undertakes to provide to Whiting Petroleum Corporation, any security holder of Whiting Petroleum Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnotes (1) and (2) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $67.14 to $68.125. /s /M. Scott Regan, Attorney-in-Fact for Rice IV, Daniel J. 2021-11-16