Forbes has released an updated version of the youngest billionaires in the world (Bill Gates still tops the main list at $79.2B).

As expected Facebook’s Mark Zuckerberg is on the list as is co-founder Dustin Moskovitz. But who else is on the list?

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10) Scott Duncan


Age: 32
Net Worth: $6.2B

How he made his billions: Duncan inherited his money from his father, Dan Duncan, who started energy pipeline company Enterprise Products. One of four children, Scott Duncan’s fortune grew by $1 billion last year after company stock rose.

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