File photo of fuel prices displayed at a Chevron gas station in Phoenix

 
File photo of fuel prices displayed at a Chevron gas station in Phoenix
Fuel prices are displayed at a Chevron gas station in Phoenix, Arizona in this October 27, 2011, file photo. Chevron Corp delivered a 4 percent rise in first-quarter profit helped by an asset sale and increases in both oil prices and refining margins that made up for a decline in oil and gas production, April 27, 2012. REUTERS/Joshua Lott/Files (UNITED STATES - Tags: BUSINESS ENERGY)