I'm sure they do, but there's no word yet on who will clean up all the oil that was spilled after Katrina.
From the WSJ (excerpt only, full version is subscriber-only):
...Assessment teams and local emergency officials have identified at least six serious oil spills and numerous smaller incidents in southern Louisiana, but they are most concerned about a leak of an estimated 672,000 gallons of crude oil from a storage tank at a Murphy Oil Corp. refinery, some of which seeped into densely populated neighborhoods on the southeastern outskirts of New Orleans.
Federal officials told area leaders in private meetings over the weekend that they have designated the location around the Murphy refinery in Meraux in St. Bernard Parish as a "hot zone," or a potentially deadly hazard. Official access to the area has been restricted, but reporters from The Wall Street Journal who drove through city streets in the area saw block after block of homes within a mile of the refinery that had been inundated with what appears to be a mixture of oil and mud. Streets and much of the ground are covered in several inches of oozing muck.
Only limited work has been performed to remove the spilled crude since water began to recede from the area this past Thursday. As more of the crude sinks into the earth, officials say, the probability grows that as many as 4,000 homes will have to be razed and two to three feet of soil removed before the area could be inhabited again. Government officials say oil sludge spread across an area of three square miles...