Aug. 29 - As Gustav threatens a quarter of the U.S. oil supply, a look at how one oil platform prepares for a hurricane. Hurricane Gustav may gather more strength before ripping through the heavy concentration of U.S. oil and natural gas platforms off Louisiana but for many of those offshore facilities planning for hurricanes is a year-round event. Ruben Ramirez reports. SOUNDBITES: No videos currently selected. Click on any video below, from any channel, to add it to your playlist.