NPR (blog) | Traces of Montana Oil Spill Are Found in Drinking Water New York Times HELENA, Mont. — Work crews burrowed through thick ice and set up containment booms Tuesday in a struggle to vacuum up 50,000 gallons of oil that spilled into the Yellowstone River from a ruptured pipeline, contaminating drinking water. The 12-inch ... Traces Of Oil Found In Montana Town's Water Supply After Spill Cancer-Causing Agent Detected in Water After Montana Oil Spill Benzene found in Montana water supply after Yellowstone oil spill |