The company's main business scope includes: industrial investment and investment management; Exploration, exploitation, storage and transportation (including pipeline transportation), sales and comprehensive utilization of oil and natural gas; Coal production, sales, storage and transportation; Petroleum refining; Storage, transportation, wholesale and retail of refined oil; Production, sales, storage and transportation of petrochemical, natural gas chemical, coal chemical and other chemical products; Production, sales, storage and transportation of new energy, geothermal and other energy products; Exploration, design, consultation, construction and installation of petroleum and petrochemical engineering; Overhaul and maintenance of petroleum and petrochemical equipment; R&D, manufacturing and sales of electromechanical equipment; Production and sales of electricity, steam, water and industrial gas; Research, development, application and consulting services of technology, e-commerce and information, alternative energy products; Self support and agency of import and export of relevant commodities and technologies; Foreign project contracting, bidding procurement, labor export; International warehousing and logistics business.