1, National Development and Reform Commission or official website, the energy management agency: The National Development and Reform Commission and the energy management agency usually release the quotation policy and the latest price information of domestic petroleum products. You can visit the official websites of these institutions to find relevant announcements or notices.
2. Oil Company official website: Major oil companies (such as China Petrochemical, China Petroleum, etc.) will provide the quotation information of oil products on their official websites. You can visit official website of these companies to find relevant pages or provide tools for quotation inquiry.