DOW JONES NEWSWIRES The probability of oil from the Deepwater Horizon disaster in the U.S. Gulf of Mexico will impact southern Florida and the Keys and then travel up the eastern U.S. seaboard remains small assuming the wellhead remains capped, the National Oceanic and Atmospheric Administration said Friday. With the flow stopped and the current that potentially would move the oil up the coast "a considerable distance away, the light sheen remaining on the Gulf's surface will continue to biodegrade and disperse, but will not travel far," said Jane Lubchenco, NOAA administrator and under secretary of commerce for oceans and atmosphere. Only scattered patches of light oil sheen were observed in the past week, the NOAA said, in a sign that oil-cleanup efforts have been effective and that the remaining oil is breaking down and dispersing. -By Tess Stynes, Dow Jones Newswires; 212-416-2481; Tess.Stynes@dowjones.com (END) Dow Jones Newswires July 30, 2010 13:24 ET (17:24 GMT)