Sempra Energy’s Port Arthur LNG Phase 1 project is now fully subscribed with long-term offtake agreements, following Wednesday's supply deal with Poland for 1 million tonnes of liquefied natural gas per year. Poland’s PKN ORLEN, the new owner of Polish Oil & Gas Co, agreed to a 20-year offtake deal with Sempra for 1 million tons per annum of Port Arthur’s Phase 1 LNG.In 2022, Sempra won similar deals with Germany’s RWE, British INEOS, French ENGIE and ConocoPhillips. Port Arthur Phase 1 is now fully subscribed with 10.5…