http://billingsgazette.com/news/stat...b8d0f9b9a.html

Authorities still trying to determine the extent of the damage. Although an estimated 50,000 gallons of oil were dumped into the Yellowstone River near Glendive, they said they are "unaware of any threats to public safety or health" - fish, aquatic insects and riparian wildlife were unavailable for comment

Regards,
Scott