FILE - Tugboats pull the crippled tanker Exxon Valdez towards Naked Island in Prince William Sound, Alaska, seen in this April 5, 1989, file photo after the ship was pulled from Bligh Reef.
FILE - Tugboats pull the crippled tanker Exxon Valdez towards Naked Island in Prince William Sound, Alaska, seen in this April 5, 1989, file photo after the ship was pulled from Bligh Reef. Rob Stapleton AP
FILE - Tugboats pull the crippled tanker Exxon Valdez towards Naked Island in Prince William Sound, Alaska, seen in this April 5, 1989, file photo after the ship was pulled from Bligh Reef. Rob Stapleton AP