Since the 650 000 barrel-per-day refinery started gasoline exports last year, the cargoes have stayed in west Africa. Mercuria is due to load the cargo on June 22, the source said.

"We sell our products to those who are willing to give us the highest price. It’s the buyer’s right to take the products to any destination of their choice," a spokesperson for the Dangote refinery said.

--Reuters--