The sanctions of America and European countries on Russia have upgraded and the geopolitical risk has been increasing. Many investors expect that the discontinuance of crude oil supply will enhance international oil price. However, in the week to 2nd August, international oil price dropped sharply. As to the unexpected drop of crude oil price, ANBOUND think tank scholars believe that the main reasons are as followings: the unstable regional situation doesn't have substantial impact on crude oil supply; American crude oil production keeps growing; and the demand of crude oil is weak.