Produksi minyak telah berkurang sebanyak 500.000 barel per hari, seperlima kapasitas produksi Nigeria, sejak serangkaian serangan terhadap kilang minyak Royal Dutch Shell pada Februari tahun lalu memaksa penutupan instalasi itu.
Oil production has been reduced by 500,000 barrels per day, one fifth of Nigeria's production capacity, since a series of raids on Royal Dutch Shell oilfields in February last year forced their closure.