Delta Air Chases Bakken Crude to Boost Refinery Fuel Savings

Delta Air Chases Bakken Crude to Boost Refinery Fuel Savings

Matthew Staver/Bloomberg

Pursuing Bakken oil adds Delta Air Lines Inc. to the roster of companies working to tap new North Dakota crude supplies released through so-called hydraulic fracturing. Hess Corp. and Exxon Mobil Corp.