Emergency response crew hired by Exxon Mobil clean up oil spill along the Yellowstone River in Laurel Montana

 
Emergency response crew hired by Exxon Mobil clean up oil spill along the Yellowstone River in Laurel Montana
Emergency response crew hired by Exxon Mobil clean up oil spill along the Yellowstone River in Laurel, Montana, July 6, 2011. REUTERS/John Warner