Oil dropped to a one-month low after U.S. crude inventories surged the most since March as production and imports rebounded from Hurricane Isaac.

Futures decreased as much as 3.3 percent after the Energy Department said supplies rose 8.53 million barrels last week, more than eight times what was projected in a survey. Imports arrived at the highest rate since January and output rose. Crude fell before the report on speculation Saudi Arabia is moving to reduce prices.

Crude oil for October delivery declined to $91.90 a barrel at 11:15 a.m. on the New York Mercantile Exchange.

Brent oil for November settlement fell $3.43, or 3.1 percent, to $108.60 a barrel on the London-based ICE Futures Europe.

Gold gained to a maximum of 6.5 months after the announcement of the Bank of Japan to expand the program purchase of government bonds.

The sharp rise in prices, which began last week, was caused by the resumption of incentive programs of the European Central Bank and the U.S. Federal Reserve. On Wednesday, they were joined by the Bank of Japan expanded the asset purchase program to 10 trillion yen ($ 127 billion) to 80 trillion yen.

Stocks of gold-ETFs this week rose to a historic high 73.681 million ounces.

Experts link the return to power of gold to last year's absolute record $ 1.920,30 per ounce in the first place with the state of the U.S. economy.

October futures price of gold on the COMEX is now 1770.9 dollars per ounce.

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Gold 1,774 +3 +0.19%