Gunmen stormed an offshore oil platform run by Royal Dutch Shell in Nigeria and seized four foreign oil workers, a company official said Thursday. The workers were kidnapped late Wednesday from an anchored supply vessel at Shell’s EA oil platform in shallow waters off the southern Niger Delta and taken to an unknown location, the Shell official said on condition of anonymity because he was not authorized to speak to the media. He had no other details, and the nationalities of the kidnapped workers were not immediately known. Full Story