The brownish slick covers 2000 square miles of ocean surface and moves toward the Louisiana coast. After last week's explosion and sinking of the Deepwater Horizon drill rig in the Gulf of Mexico, thousands of gallons of crude continue to be discharged into the ocean, which has boaters wondering what they can do to prevent damage to their boats. Forecasters say changes in wind direction could see the light oil slick could be making landfall possibly as early as today. The Boat Owners Association of The United States (BoatUS) offers the following tips: Don't cross oil containment booms; if there is oil in your marina, don't run engines with seawater intakes; if you haul out, don't assume costs will be reimbursed by British Petroleum (BP); if your boat comes in contact with the oil, call your insurance to file a claim; uninsured boaters can call the BP Hotline at 800-440-0858 to file a claim. To report the oil sheen moves, call the BP Community Information Hotline at 866-448-5816. More information.