SAN DIEGO, Aug. 21, 2025 /PRNewswire/ -- Sempra (NYSE: SRE) today announced that its subsidiary, Sempra Infrastructure, and ConocoPhillips (NYSE: COP) have signed a definitive 20-year sale and purchase agreement (SPA) for 4 million tonnes per annum (Mtpa) of LNG offtake from the Port Arthur LNG Phase 2 development project in Jefferson County, Texas."The role of U.S. LNG in meeting the energy security needs of America's allies continues to grow," said Jeffrey W. Martin, chairman and CEO of Sempra. "That is w ...