Qatargas and Centrica have firmed up a sales and purchase agreement involving volumes into Grain LNG.
The deal will see the LNG production giant deliver as much as 2.4 million tonnes per annum from the Qatargas 4 trains over three years.
The outfits penned a preliminary deal in February during a visit of UK Prime Minister David Cameron to Qatar.
The first shipment is expected to be delivered in June under the £2 billion ($3.2