XRG, a wholly-owned subsidiary of the Abu Dhabi National Oil Company (ADNOC), has acquired an interest in Trains 4 and 5 of the Rio Grande LNG plant owned by NextDecade, the United Arab Emirates’ company announced on July 2.

With the completion of the transaction, XRG now holds stakes in all five trains at the 30 mn tonnes per year (tpy) facility located at the Port of Brownsville in Texas.

Under the terms of the deal, XRG acquires an additional 7.6% equity interest in the two trains from an acquisition vehicle of Global Infrastructure Partners (GIP), which is a part of Blackrock, the world’s largest asset manager.

XRG’s initial investment in Phase 1 of Rio Grande LNG saw it acquire in September 2025, an indirect stake of 11.7% from GIP with interests in Trains 1, 2, and 3. The deal was originally agreed to in May 2024 and marked XRG’s first foray into the US. It also included a 20-year LNG offtake agreement for 1.9 MTPA from Train 4.

“Completing this transaction marks an important step in the execution of XRG's global gas strategy and our ambition to build a resilient, integrated, and globally scaled platform across gas, LNG, and chemicals,” Mohamed Al Aryani, President of XRG's International Gas business, said in a statement.

“Rio Grande LNG is a textbook example of a world-class infrastructure project that helps connect advantaged U.S. gas supply with international demand,” Al Aryani added.

Rio Grande LNG is currently under construction with the export terminal expected to begin production of the super-chilled fuel by mid-2027 and first gas into the facility forecast to occur in the second half of 2026.

XRG in the midst of expanding its global presence. The company has earmarked the US LNG sector as having strategic importance. In late June, the Middle East firm also announced its acquisition of a stake in upstream assets of Argentina LNG.