Natural gas futures fell the most in two months after a government report showed a bigger-than-estimated increase in U.S. stockpiles, according to a report by Bloomberg (

Citing a Department of Energy ( report, Bloomberg says supplies in storage gained 66 billion cubic feet in the week ended July 31 to 3.089 trillion cubic feet, far exceeding analysts forecasts for a gain of 61 billion. The total was a record for late July, based on weekly department data going back to 1994.

As a result, natural gas for September delivery fell 29.9 cents, or 7.4 percent, to settle at $3.743 per million British thermal units at 2:58 p.m. on the New York Mercantile Exchange, the biggest one-day decline since June 3, according to Bloomberg. Gas has dropped 33 percent this year, notes Bloomberg.

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