A nonhazardous oil spill in Long Island's Mill River led to cleanup efforts and concerns over wildlife impact.

The total cost could be significantly higher. Regulatory, staffing, disposal and other costs could add to the amount.

Louisiana is officially canceling a $3 billion coastal restoration project funded by the Deepwater Horizon oil spill ...

A simple mistake led to a massive mess that stretched for miles, leaving chemical crews working to clean up a highly ...