BP oil spill seriously harmed deep-sea corals, scientists warn | Environment | The Guardian These are the sort of costs that will always be externalized by oil companies.
really amazing it hasn't been worse considering the volume of oil. not sure if this is public access, but i thought you'd find this interesting IP: Fallout From North Sea Gas Leak Intensifies - WSJ.com
The plus in the Gulf of Mexico is the life there is at least somewhat used to low levels of natural leakage.