"Delta Air Lines Inc is preparing to market gasoline from a refinery it owns outside Philadelphia," reports Reuters here.

The Monroe Energy plant, on the Delaware River to the north of Marcus Hook, "is ramping up to sell small volumes of blended gasoline and ultimately diesel at a distribution center owned by Sunoco Logistics Partners outside Philadelphia," Reuters added, citing an unnamed source.

"The sales will allow Monroe to benefit from motor fuel profit margins, an attempt to turn around a loss-making plant at a difficult time for the refining industry along the U.S. East Coast."