LONDON, May 15 (Reuters) – Operator Royal Dutch Shell lifted the force majeure in place on exports of major Nigerian grade Bonny Light, as tight global oil supply encourages sellers of Nigerian crude to offer many varieties at all-time high prices.

Source: http://feeds.reuters.com/~r/reuters/AfricaNigeriaNews/~3/29_XW3FDV50/idAFL5N22R6JZ