1. Chevron (CVX): American energy company, whose business includes exploration, production, transportation and sales of oil, natural gas and liquefied natural gas.
2. ExxonMobil (XOM): American oil and gas company, whose business includes exploration, production, transportation and sales of oil, gas and chemicals.
3.RoyalDutchShell(RDS。 A): Royal Dutch Shell Company, whose business covers the exploration, production, transportation and sales of oil, natural gas and chemicals.
4.BP: BP, whose business covers the exploration, production, transportation and sales of oil, natural gas and chemicals.
5. TOT: French oil company, whose business covers the exploration, production, transportation and sales of oil, natural gas and chemicals.
6. ConocoPhillips (COP): American energy company, whose business scope includes exploration, production, transportation and sales of oil, natural gas and liquefied natural gas.
7. China Petroleum (SNP): China Petroleum and Natural Gas Corporation is the largest energy company in China, covering the exploration, production, transportation and sales of oil, natural gas and chemical products.
8. China Petroleum (PTR): a listed company under China Petroleum and Natural Gas Group, whose business covers the exploration, production, transportation and sales of petroleum, natural gas and chemical products.
9. China Petrochemical (SNP): a listed company under China Petrochemical Group, whose business covers oil, natural gas, petrochemical, coal chemical, new energy and other fields.
10.SIBN natural gas company. ME): A listed company under Gazprom, whose business covers the exploration, production, transportation and sales of oil and gas.