The British Petroleum oil refinery is seen in Whiting, Indiana in this file photo taken August 16, 2007. An unknown amount of oil leaked from BP Plc's Whiting refinery in Indiana into Lake Michigan ... more 
The British Petroleum oil refinery is seen in Whiting, Indiana in this file photo taken August 16, 2007. An unknown amount of oil leaked from BP Plc's Whiting refinery in Indiana into Lake Michigan after a mechanical glitch on Monday afternoon, the company confirmed on Tuesday. REUTERS/John Gress/Files (UNITED STATES - Tags: ENERGY ENVIRONMENT DISASTER BUSINESS) less 
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Reuters | Photo By JOHN GRESS / REUTERS
Tue, Mar 25, 2014 1:00 PM EDT