(Bloomberg) -- Bargain-seeking investors have turned bullish on embattled energy stocks, plowing record amounts into the industry.

More than $3.13 billion went into exchange-traded funds holding stakes in Exxon Mobil Corp., Schlumberger Ltd. and other energy stocks this month, even as the price of oil fell 22 percent, according to data compiled by Bloomberg. That’s four times the average for the year and more than the prior record in December 2007, when oil was trading near $91 a barrel.

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