Everyone Is Fleeing Oil's Biggest Fund

Oil ETFs Are Running Out of Gas

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The biggest U.S. exchange-traded fund that tracks oil is heading for the largest two-month outflow in six years, raising concern that crude’s 30 percent rally may stall.

Holders of the United States Oil Fund, known as USO, have withdrawn almost $1 billion so far in April and May, according to data compiled by Bloomberg. Crude dropped about $12 a barrel after a $1.4 billion exodus from the fund in the two months ended June 2009.