Article Photos: MDU Resources Group to build ND diesel refinery 1/1

Gov. Jack Dalrymple announces a new diesel refinery in North Dakota at a press conference in Bismarck, N.D. on Thursday, Feb. 7, 2013. MDU Resources Group Inc. says it will build the diesel refinery near Dickinson in western North Dakota's booming oil patch starting this spring. (AP Photo/James MacPherson)