A Sunoco fuel truck pulls into the Philadelphia Energy Solutions oil refinery owned by The Carlyle Group in Philadelphia March 24, 2014. Picture taken March 24, 2014. To match OIL-ETHANOL/LOBBY ... more 
A Sunoco fuel truck pulls into the Philadelphia Energy Solutions oil refinery owned by The Carlyle Group in Philadelphia March 24, 2014. Picture taken March 24, 2014. To match OIL-ETHANOL/LOBBY REUTERS/David M. Parrott (UNITED STATES - Tags: ENERGY POLITICS BUSINESS COMMODITIES) less 
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Reuters | Photo By DAVID M. PARROTT / REUTERS
Mon, May 12, 2014 12:39 AM EDT