Oil sheen in Gulf, source unknown
LONDON- Oil giant BP says it is investigating a new sheen in the Gulf of Mexico but says there's no immediate indication it is the result of a new oil spill.
A catastrophic April 2010 explosion at BP's Macondo well in the Gulf killed 11 men and led to the worst offshore oil spill in U.S. history. BP's description of the site of the new sheen and a statement from a U.S. official seems to indicate that the discovery isn't near where the Macondo well blew up.
A sheen is a shiny coating that floats on the surface of the water, and could come from leaked or spilled oil. BP did not make clear what the source of the sheen was, but told The Associated Press it was not found near "any existing BP operations."
Some oil naturally seeps from the floor of the Gulf.