The new rules from the Department of Transportation apply to more than 500,000 miles of pipelines that carry natural gas, oil and other hazardous materials throughout the U.S.
Flooding in 2011 scoured the river bottom and exposed the buried pipeline, causing it to break along a stretch of river popular with anglers and boaters.
After five years of negotiations, the State of Montana has finally reached a settlement with ExxonMobile over a busted pipeline that gushed oil into the Yellowstone River back in 2011.
Many Montanan politicians are outraged over the oil spill in the Yellowstone river near Glendive, but few have had as personal an experience with the spill as State Senator Matt Rosendale.
BILLINGS, Mont. (AP) — Federal investigators say Exxon Mobil Corp.'s delayed response to a pipeline break beneath Montana's Yellowstone River made the spill far worse than it otherwise would have been.