ConocoPhillips is exiting the gas station business, selling its remaining 600 stations to Seattle-based PetroSun West LLC, The Wall Street Journal reported. Oil companies are leaving the low-margin gasoline business, often for oil exploration. But Conoco, the No. 3 U.S. oil firm, will still refine oil and sell the gasoline wholesale. PetroSun plans to add food, financial services, and dry cleaning to its new gas stations. (MarketWatch)