Angola appears set for another uptick in crude differentials thanks to firmer Asian demand and tighter supply. Nigeria has cut its official selling prices to clear an overhang. Nigeria continues to suffer ongoing delays at several terminals. Save for later Print Download Share LinkedIn Twitter The West African crude market has returned to a familiar, lively pattern ahead of the trade in November cargoes. Angola managed to clear its medium, sweet October cargoes, while Nigeria, which trades over a longer cycle, wrestled with a 15-20 cargo overhang.