NEW YORK (Bloomberg) - Tellurian said it signed a $7.5 billion agreement for India’s Petronet LNG Ltd. to buy into its proposed liquefied natural gas terminal in Louisiana, in what could potentially be one of the largest foreign investments in the U.S. to ship shale gas abroad.

Petronet will spend $2.5 billion for an 18% equity stake in the $28 billion Driftwood LNG terminal -- the largest outside holding so far in the project -- and negotiate the purchase of 5 MM tons of gas per annum. The remainder of the total will come from debt, Tellurian Chief Executive Officer Meg Gentle said.