A Marathon Oil Corp. refinery in Garyville, La.
A Marathon Oil Corp. refinery in Garyville, La. File photo by Patrick Semansky Bloomberg
A Marathon Oil Corp. refinery in Garyville, La. File photo by Patrick Semansky Bloomberg

Rare in the energy sector, Midwest refineries are helped, not hurt, by cheaper oil

December 25, 2014 06:00 AM