Calgary-based Enbridge has closed a $1.5 billion deal which will see it take a nearly 30 per cent interest in the Bakken pipeline system, which includes the controversial Dakota Access Pipeline

The Standing Rock Sioux Tribe in southern North Dakota sued federal regulators last month for approving the pipeline, arguing it would affect drinking water and disturb sacred sites.

Calgary-based Enbridge will provide US$1.5 billion to its affiliate Enbridge Energy Partners (NYSE:EEP), which will acquire a 27.6 per cent indirect interest in the Bakken pipeline system