Indian LNG importer, Petronet has agreed to invest $2.5 billion in US LNG developer Tellurian Inc. Hailed as one of the largest overseas investments in the United States to ship shale gas abroad, the agreement will enable Petronet to import up to 5 mtpa of LNG every year from Driftwood. The agreement was inked in the presence of Prime Minister Modi, who is on a week-long visit to the States.