Philadelphia Energy Solutions (PES) Opens a New Window. is saying it wants to permanently close its oil refinery, one of the oldest and largest refineries on the East Coast, after an explosion and massive fire. The refiner had the capacity to process 335,000 barrels of oil per day or the equivalent of 14 million gallons and is one of the largest suppliers of gasoline on the eastern seaboard. The event caused substantial damage to its building complex and caused the financially struggling refiner to say enough is enough. This is a situation that has already caused gasoline prices to go...