Just look at Texas after the Mexican oil spill the spewed oil for a solid year. Texas was cleaning up for a year after they got it stop , but they survived it just like we will survive this one. That spill was over 1,500,000 tons of oil. They said it would take two years for this one to produce that much oil. Just hope they can cap it with the way they are going to try. Still they should have a relief well drilled in three month to cement it off.
Be as smart as you can, but it is always better to be wise than to be smart.