Port Arthur LNG is a natural gas liquefaction and export terminal in Jefferson County, Texas, with direct access to the Gulf of Mexico via the Sabine-Neches ship channel.

The Port Arthur LNG Phase 1 facility is designed to include two natural gas liquefaction trains, two LNG storage tanks, and associated facilities with a nameplate capacity of approximately 13 mtpa.

Port Arthur LNG Phase 1 is a joint venture project between Sempra Infrastructure and ConocoPhillips and has long term, fully subscribed capacity with ConocoPhillips, RWE Supply and Trading, PKN Orlen S.S., INEOS and Engie S.A.

The expected commercial operation dates for Train 1 and Train 2 are 2027 and 2028, respectively.

Construction on the project began shortly after a final investment decision was reached in March 2023. In September 2023, Sempra sold a non-controlling interest in the project to KKR.