NextDecade Corp. said it has reached a 20-year LNG sale and purchase agreement with a subsidiary of Aramco for offtake from Train 4 at the Rio Grande LNG Facility.

The Aramco subsidiary will purchase 1.2 million tonnes per annum of LNG for 20 years on a free-on-board basis, at a price indexed to Henry Hub, subject to a positive final investment decision (FID) on Train 4. NextDecade said the FID will depend on reaching other commercial agreements and obtaining adequate financing.

Rio Grande LNG is under construction in Brownsville. The company announced plans in February to build eight LNG trains at the site.