BuzzFeed News | Company: Oil in pipeline under Missouri River reservoir ABC News The Dakota Access pipeline developer said it has placed oil in the pipeline under a Missouri River reservoir in North Dakota and that it's preparing to put the line into service. Dallas-based Energy Transfer Partners made the announcement Monday in a ... Oil Is Now Filling The Contested Section Of The Dakota Access Pipeline Dakota Access puts oil in pipeline Dakota Access Oil Line Outlasts Protests, Readies for Service |