Canadian energy company Enbridge announced Monday that it has reached an agreement with Marathon Petroleum under which the latter will serve as the primary distributor of the oil that will flow from shale-rich North Dakota through its planned $2.6 billion Sandpiper pipeline.

The Sandpiper pipeline is expected to carry more than 200,000 barrels of oil a day from the Bakken Shale formation in North Dakota through Minnesota to an Enbridge terminal in Wisconsin on the shores of Lake Superior.