Producers may use this window to ramp up output and, with pipeline sabotage much reduced over the past year, allow the government of President Muhammadu Buhari a fighting chance to persuade militants of his commitment to partner communities in development.

UK consultant BMI Research suggests the rebounding Brent crude price will bolster determination to restore E&P investment across the Niger Delta, where ExxonMobil’s recent discovery of the billion-barrel Owowo field has boosted confidence all round.