Authorities working to determine source of oil slick off Santa Barbara coast – the Los Angeles Times

The U.S. Coast Guard was working with state officials Saturday to determine the cause of a large oil slick in the waters off Santa Barbara County.

The 1½- to 2-mile sheen was spotted Friday about five nautical miles from Summerland Beach, an area with a petroleum-rich sea floor that is home to numerous abandoned gas and oil wells…