An ExxonMobil pipeline that runs under the Yellowstone River near Billings ruptured and dumped an unknown amount of oil into the waterway, prompting temporary evacuations along the river Saturday morning.
The rupture occurred Friday night about 12 miles east of Billings, Montana. Experts estimate up to 42,000 gallons of crude seeped into the Yellowstone River.
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Crews first discovered oil bubbling up from below the Yellowstone riverbed just east of Laurel, Montana about 11:30 p.m. Friday. By 9:00 a.m. Saturday, the oil reached Worden, Montana.