FILE PHOTO: John Hess, CEO of the Hess Corporation, speaks during the IHS CERAWeek 2015 energy conference in Houston, Texas April 21, 2015. REUTERS/Daniel Kramer
FILE PHOTO: John Hess, CEO of the Hess Corporation, speaks during the IHS CERAWeek 2015 energy conference in Houston, Texas April 21, 2015. REUTERS/Daniel Kramer