Sour grapes

摘要

As Oilweek went to press,Houston-based Marathon Oil,America's fifth-largest refiner,had just announced its offer to purchase Western Oil Sands-which produces 30,652 barrels of bitumen per day-for 6.6 billion.Just one day earlier,Royal Dutch Shell announced that it plans to build a 27-billion upgrader near Edmonton to process 400,000 barrels of bitumen per day.