The 100 richest people in the world gained $241 billion in net worth last year, according to Bloomberg's Billionaires Index. Americans dominated the list, occupying five of the top 10 spots. This countdown of the top 10 wealthiest Americans features a casino mogul, software tycoons, and a lot of Wal-Mart money.
US oil output is rising in no small part because of a major deep-water oil play that turned the Gulf of Mexico’s drilling fortunes from bust to boom.
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