CHINA, No. 1: A worker checks pipes at PetroChina's Tarim Oilfield in Taklamakan Desert in China in March 2009. According to the International Energy Agency, China consumed the equivalent of 2.265 billion tons of oil in 2009, which was about 4 percent more than the 2.169 billion tons used in the United States. Nearly three-fourths of China's energy consumption comes from coal. By 2015, the Dragon is expected to consume the equivalent of 2.783 billion tons of oil compared to America's 2.291 billion tons.