Eike Batista jumped 53 spots in Forbes magazine’s annual list of the world’s richest people and had its biggest increase in net worth as the value of his oil, mining, energy and transportation companies soared.  Batista, 53, is the world’s eighth-richest person, with a net worth of $27 billion, Forbes said. That’s an increase of $19.5 billion from last year, when Forbes ranked him the 61st richest individual. Mexico’s Carlos Slim beat out Bill Gates and Warren Buffett for the top spot on the list, becoming the first person from outside the U.S. to lead it in 16 years.