FILE - This Feb. 27, 2012, file photo shows gas prices at a Pittsburgh Exxon mini-mart. Exxon Mobil's fourth-quarter profit fell 16 percent as the company produced slightly less oil and gas and its ... more 
FILE - This Feb. 27, 2012, file photo shows gas prices at a Pittsburgh Exxon mini-mart. Exxon Mobil's fourth-quarter profit fell 16 percent as the company produced slightly less oil and gas and its refining business weakened, the company announced on Thursday, Jan. 30, 2014. (AP Photo/Gene J. Puskar, File) less 
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Associated Press | Photo By Gene J. Puskar, File
Thu, Jan 30, 2014 11:21 AM EST