WASHINGTON, Sept. 26 (UPI) -- U.S. regulators said they were still determining if Exxon Mobil violated safety regulations but gave the nod to restart the company's Silvertip pipeline.
Around 1,200 barrels of oil spilled from Exxon Mobil's Silvertip pipeline into the Yellowstone River near Billings, Mont., in early July. Flooding slowed cleanup efforts and teams were sent in to remove debris soaked with oil after water levels dropped.