Custom Search
Petro China has the largest reserve of Natural Gas among world’s main energy companies. According to the latest estimate, Petro China has a total reserve of natural gas for about 33 years, followed closely by Woodside (30 years). Other big companies that have high reserve of natural gas include Exxon Mobil, Occidental and Oil Search. Petro China is one of the biggest listed companies in China and in the world.