A Shell oil facility has leaked nearly 90,000 gallons of oil into the Gulf of Mexico, according to federal authorities. The spill has left a two-mile by thirteen-mile sheen in the Gulf, approximately 165 miles southwest of New Orleans. A helicopter first noticed the spill near Shell's Brutus platform on Thursday morning, according to Shell spokeswoman Kimberly Windon.

"There are no drilling activities at Brutus, and this is not a well control incident," Windon told the Associated Press.