Exxon corporate logo is pictured at a gas station in Arlington

 
Exxon corporate logo is pictured at a gas station in Arlington
The Exxon corporate logo is pictured at a gas station in Arlington, Virginia January 31, 2012. Exxon Mobil Corp's fourth-quarter profit narrowly beat Wall Street's expectations on Tuesday as rising crude oil prices offset falling margins for chemicals, engine lubricants and fuel. REUTERS/Jason Reed