Passers by look at a CNPC "nodding donkey" oil pump pumping oil in the middle of the city of Daqing, Heilongjiang province, China, on July 14, 2006. China National Petroleum Corp. (CNPC) is the parent company of PetroChina. PetroChina went public on the Shanghai Stock Exchange Monday, Nov. 5, and the shares nearly tripled the same day. At US$1.005 trillion market capital, PetroChina is now the only trillion-dollar company in the world, twice the value of its US peer Exxon Mobil. Photo by Servais Mont/Pictobank
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