Dangote Lekki refinery, Nigeria (2016-2024)
Dangote's first oil refinery, built at Lekki near Lagos, is the world's largest single-train plant at 650,000 barrels a day. Groundbreaking took place in 2016 with a planned 2019 opening.
After years of construction and financing delays, it began producing petrol in 2024.
It reduced Nigeria's fuel imports but cost billions more and took five years longer than planned.
The same developer, capacity and ambition now apply at Lamu. The Nigerian record is the benchmark for whether this schedule holds.
