CALGARY 鈥� Enbridge Inc. has announced further delays to an oil pipeline proposed to run from the Bakken oilfields of North Dakota through Minnesota to a terminal in Superior, Wis.The Calgary-based company said the $2.6-billion Sandpiper project will be delayed until Bakken crude oil production recovers sufficiently to support its construction. It added the new pipeline is not expected to be needed for more than five years. 338 words. Moved National and Business.