Attacks on Nigeria's energy facilities by groups calling for the Delta region to receive a greater share of the Opec member's oil wealth have cut crude production, which stood at 2.1 million barrels per day at the start of the year, by a third.
The Niger Delta Greenland Justice Mandate said it bombed the Unenurhie-Evwreni delivery line in Ughelli, Delta state, at around 01:00am (00:00 GMT) on Thursday.
