WASHINGTON, DC - MAY 12: Exxon Mobil CEO Rex Tillerson, participates in a Senate Finance Committee hearing, on May 12, 2011 in Washington, DC. The committee was hearing testimony from oil industry ... more 
WASHINGTON, DC - MAY 12: Exxon Mobil CEO Rex Tillerson, participates in a Senate Finance Committee hearing, on May 12, 2011 in Washington, DC. The committee was hearing testimony from oil industry executives on oil and gas tax incentives and the recent spike in gasoline prices. (Photo by Mark Wilson/Getty Images) less 
1 / 20
Getty Images | Photo By Mark Wilson / Getty Images
Thu, May 12, 2011 1:40 PM EDT