The reasons for the rise in international oil prices involve many aspects, such as the relationship between supply and demand. Secondly, when the economy recovers or develops rapidly, it will increase the consumption and demand of crude oil and stimulate the rise of oil prices. The Russian-Ukrainian war also led to an increase in crude oil. Finally, crude oil producing countries have introduced relevant policies to reduce or restrict crude oil exports, which will lead to an increase in oil prices to some extent.