Enbridge Energy and its subsidiary, Bakken Pipeline Co., have received presidential permits to continue operating and maintaining existing U.S.-Canada cross-border pipeline facilities in North Dakota and Michigan. The move is expected to support future pipeline-related construction and eventually boost capacity by hundreds of thousands of gallons of petroleum a day. The authorization covers facilities in Burke County, N.D., including an existing 12-inch-diameter pipeline from the international border to Portal, N.D. It also includes installation of the first U.S. mainline shutoff valve or pump station about 0.5 miles south of the border, along with any associated structures, installations or equipment. Read More Presidential Action | Permit Authorization In Michigan, the permit applies to an existing 30-inch-diameter pipeline in St. Clair County, extending from the international boundary to the first U.S. shutoff valve or pump station, approximately 0.3 miles from the border, and to associated facilities.…