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World's top 20 oil producers revealed

NEW YORK, NY - FEBRUARY 13: The Empire State Building towers over the Manhattan skyline on February 13, 2012 in New York City. The owner of the Empire State Building, Malkin Holdings, plans to raise up to $1 billion in an initial public offering on the 102 story Manhattan landmark. (Photo by John Moore/Getty Images)

World's 20 biggest oil producers

With crude production of crude oil on track for the biggest single-year gain in 60 years, the U.S. could be set to push past Saudi Arabia as the globe's top oil producer. Here we count down the world's top 20.