It is the closest to the international crude oil market. Fuel oil is a product extracted from petroleum. Its price is influenced by the international crude oil market supply and demand, political situation and other factors, and its price changes are closely related to the international crude oil market. The futures market is a place to reflect the trading expectations and risk management needs of both fuel oil suppliers and demanders. Its price trend is often the most similar to the international crude oil market, but it is also affected by unique factors, such as the operating rate of refineries.