Kosmos Energy and its partners have reached an agreement with BP Gas Marketing, a BP subsidiary, for the supply of liquefied natural gas (LNG) from the Greater Tortue Ahmeyim project in offshore Mauritiana and Senegal.

Kosmos Energy, BP, Petrosen and Société Mauritanienne des Hydrocarbures et de Patrimoine Minier (SMHPM) jointly own the cross-border project.

BP Gas Marketing will take 2.45 million metric tonnes per annum (Mtpa) of LNG from the first phase of the project over an initial 20-year period.

Kosmos Energy Mauritania-Senegal business unit senior vice-president and head Todd Niebruegge said: “The signing of the SPA is an important milestone in the Greater Tortue Ahmeyim project for the Governments of Mauritania and Senegal, SMHPM, Petrosen, BP and Kosmos.

“With the signing of this agreement, we have materially increased the proved reserve base of the company and the project remains on track to deliver first gas in the first half of 2022.”

Kosmos expects to acquire net proved reserves of 100 million barrels of oil equivalent (Mmboe), associated with the project’s first phase.

BP Mauritania and Senegal regional president Norman Christie said: “The SPA is another positive step forward for the Greater Tortue Ahmeyim project.”

In July, Kosmos Energy and partners announced that the Greater Tortue Ahmeyim-1 well (GTA-1) encountered 30m of net gas pay in the Albian reservoir.

In March, BP awarded contracts to McDermott and Baker Hughes for the Greater Tortue Ahmeyim natural gas project.