BISMARCK, N.D. (AP) — Workers have recovered thousands of gallons of crude oil from an underground pipeline spill on North ...

Officials do not know how much oil leaked from the Keystone Pipeline after an employee heard a loud noise Tuesday morning.

BISMARCK — The operator of a portion of the Keystone pipeline that runs through North Dakota estimates about 3,500 barrels, or 147,000 gallons, of crude oil spilled into a field near Fort Ransom ...