YENAGOA, Nigeria Sept 30 (Reuters) – Crude oil production at Nigeria’s Warri refinery in the country’s restive Niger Delta region has not been affected by an explosion heard near the site, the country’s oil labour union said on Friday.

Source: http://feeds.reuters.com/~r/reuters/AfricaNigeriaNews/~3/9GVAVM6x33A/idAFL8N1C65HY