The relationship between supply and demand needs to be analyzed from two aspects: crude oil inventory and crude oil exploitation. For example, the EIA crude oil inventory data in the United States will trigger a wave of fluctuations in the crude oil market every week. If the crude oil inventory data increases, it means that the market demand for crude oil is decreasing and the price of crude oil will fall; The opposite is inevitable. The exploitation of crude oil is related to the political factors of the mining country. For example, if a large-scale war breaks out in the Middle East, the amount of crude oil exploitation will inevitably decrease, thus pushing up the price of crude oil.