BP and its Tortue partners, including US independent Kosmos, have discovered 15 trillion cubic foot of gas at the project off Mauritania and Senegal, which is believed to be enough to support 10 million tonnes per annum of liquefaction capacity, writes Iain Esau.

While phase one of the project will produce about 2.5 million tpa of LNG via a OneLNG floating LNG vessel, the options for phase two are still up in the air.

Earlier this year, an inter-governmental co-operation agreement was signed by Mauritania and Senegal that dealt largely with field unitisation and paves the way for a final investment decision in late 2018 and probable start-up in late 2021.