Key Speakers At Ceraweek 2012

Rex Tillerson, chief executive officer of Exxon Mobile Corp., speaks at the 2012 CERAWEEK conference in Houston, Texas, U.S., on Friday, March 9, 2012. Exxon Mobil Corp. is moving toward the conclusion of an agreement to drill in the Russian Arctic, Tillerson said. Photographer: F. Carter Smith/Bloomberg via Getty Images