I would say it is not very smart to have 90% of our refining capacity in the storm prone gulf states. From a strategic standpoint it would make a lot of sense to build more refineries in more geographically diverse locations.
Problem is that refineries need to be close to the unloading facilities (or, we spring for multi-billion pipeline projects). The big deal is that world's 4th largest port is Southern Louisiana Port, with adjoining LOOP (Louisiana Offshore Oil Port). A real big chunk of imports go through there. And then, ton of our agricultural exports come out of that port. If the port remains closed for some time, especially during harvest time, this will have global reprecussions.