ConocoPhillips, Sempra extend partnership with additional LNG offtake from Port Arthur

ConocoPhillips signed a long-term deal for 4 million tpy of LNG from Sempra's Port Arthur LNG Phase 2 development in Texas with the aim of enhancing its long-term energy supply strategy.
Aug. 21, 2025

Key Highlights

  • ConocoPhillips signed a 20-year LNG offtake agreement for 4 million tonnes/year from Port Arthur LNG Phase 2.
  • Phase 1 is under construction, with commercial operations expected to start in 2027.
  • Sempra aims to secure FID for Phase 2 this year.

ConocoPhillips signed an agreement to become a major offtaker from Sempra’s Port Arthur LNG Phase 2 project.

The operator has signed a 20-year deal to purchase 4 million tonnes /year (tpy) of LNG on a free-on-board basis from the project currently under development in Jefferson County, Tex., by Sempra Infrastructure.

In July 2022, ConocoPhillips signed a 20-year agreement for 5 million tpy of LNG offtake and executed an agreement to purchase 30% equity stake in the 13.5-million tpy Phase 1 of Port Arthur LNG. The project’s first phase, which consists of two LNG storage tanks and liquefaction trains 1 and 2, is under construction, with commercial operations expected to begin in 2027.

Port Arthur LNG Phase 2, also expected to include two liquefaction trains capable of producing about 13 million tpy, would increase the total liquefaction capacity of the Port Arthur LNG plant to up to about 26 million tpy.

ConocoPhillips said that although a final investment decision (FID) is pending for Phase 2, the company’s participation in that project will be offtake only. Sempra is targeting Phase two FID this year.

Future phases of Port Arthur LNG are in the early development stage.

About the Author

Mikaila Adams

Managing Editor - News

Mikaila Adams has 20 years of experience as an editor, most of which has been centered on the oil and gas industry. She enjoyed 12 years focused on the business/finance side of the industry as an editor for Oil & Gas Journal's sister publication, Oil & Gas Financial Journal (OGFJ). After OGFJ ceased publication in 2017, she joined Oil & Gas Journal and was named Managing Editor - News in 2019. She holds a degree from Texas Tech University.

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