Hadn't though about tanker traffic disruptions. Off La. the big boys don't usually come into port anyway. There's an offshore transfer system they'll tie off to and unload. I'm sure it shuts down just like the platforms. The tankers can try to scoot around the storms but they may not always be able to avoid a fast storm. I don't know but I would bet they keep them out of the Gulf when a big one is coming. I doubt they reroute them very far unless there is a long term disruptions...those big boys burn a lot of fuel when they're loaded. As far as TX goes I'm not sure the big ones come up thru the bay. I vaguely remember hearing that they transfer to smaller tankers offshore. Living within sound of the tanker horns you'd think I'd know for sure (I live across the highway from the biggest refinery in the US)

Here's a link to an image of the current positions of registered merchant marine traffic in the GOM. Traffic has pretty well cleared out of the path between Cantarell & the TX/LA coasts. Don't have any data on what "normal" traffic looks like for this region, but this is a pretty cool tool.

For example, scroll down on the page an click on "Gaschem Juemme." You'll see that it's a liquid tanker and is moving north as quickly as it can from its prior position at 0000 GMT at the latitude of the TX/MX border to the latitude of Corpus Chirsti at 1800 GMT.

Jeff,
Thanks for posting that. I knew there was something I needed to get from you. (sorry...)
http://www.sailwx.info/shiptrack/shiplocations.phtml?lat=22.878025859441...