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World's top 20 oil producers revealed

RIO DE JANEIRO, BRAZIL - JULY 27: An arial view of the 'Christ the Redeemer' statue on top of Corcovado mountain on July 27, 2011 in Rio de Janeiro, Brazil. (Photo by Michael Regan/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.