Port Arthur Gas Pipeline

From Global Energy Monitor
This article is part of the Global Fossil Infrastructure Tracker, a project of Global Energy Monitor.

Port Arthur Gas Pipeline is a proposed natural gas pipeline in the southeastern United States. The Louisiana section is also called the Port Arthur Louisiana Connector and the Texas section is also called the Port Arthur Texas Connector.[1]


The pipeline runs from Jefferson County, Texas, to St Landry Parish, Louisiana.[2][3]

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Project Details

  • Operator: Sempra Energy
  • Proposed capacity: 3.05 bcf/d[4]
  • Length: 165.1 miles / 267 km[2]
    • Louisiana Connector Length: 130.9 miles / 210 km
    • Texas Connector Length: 43.2 miles / 69.5 km
  • Diameter: 42-inches[5]
  • Status: Proposed
  • Start Year: 2024[6]


The Port Arthur Pipeline is split into three parts, according to Sempra's website: Port Arthur Pipeline – Texas Connector, Port Arthur Pipeline – Louisiana Connector, and Port Arthur Pipeline – Louisiana Connector (PAPLC) Extension Project.[7] The Port Arthur Gas pipeline will be operated by Port Arthur LNG, a subsidiary of Sempra Energy. The proposed pipeline will measure 165 miles in length and 42 inches in diameter, which will run a proposed LNG storage site in Port Arthur, Texas, in Jefferson County, and will end near St. Landry Parish in Louisiana.[8] The pipeline will carry approximately 2 billion cubic feet of natural gas. The pipeline and the Port Arthur facility will cost around $8 billion.[9]

In April of 2019, Federal Energy Regulatory Commission (FERC) approved the construction of the project.[10] In June of 2019, the Port Arthur Pipeline, a subsidiary of Sempra Energy, told FERC that the plan was altered to call for a 166-mile, 48-inch-diameter pipeline with a transportation capacity of 2.5 Bcf/d. The Sempra subsidiary had initially proposed a 131-mile, 42-inch-diameter pipeline with a capacity of 2 Bcf/d.[11]

As of February 2020, Sempra Energy projects construction to start in Q3 2022 and commercial operations to commence Q4 2024.[8]

Articles and resources


  1. Port Arthur Gas Pipeline, Sempra Energy website, accessed September 2017
  2. 2.0 2.1 Sempra LNG. "PORT ARTHUR PIPELINE". portarthurlng.com. Retrieved 28 February 2020.
  3. National Energy and Petrochemical Map , FracTracker, February 28, 2020
  4. Port Arthur Pipeline seeks interest in additional 1.15 Bcf/d gas capacity in US, S&P Global Platts, Sep. 17, 2020
  5. Natural Gas Data, Pipeline Projects Energy Information Agency, July 21, 2020
  6. Sempra LNG. "Port Arthur Pipeline – Texas Connector". SepraLNG. Retrieved 28 February 2020.
  7. Sempra Natural Gas. "Natural Gas Infrastructure". SempraLNG. Retrieved 28 February 2020.
  8. 8.0 8.1 Port Arthur Pipeilne - Louisiana Connector, Sempra Energy, accessed January, 2018
  9. Kaitlin Rust, Proposed pipeline will run through several parishes in SWLA, KPLC, May 2, 2017
  10. Port Arthur LNG moves closer to FID with FERC authorization Oil and Gas Journal, April 18, 20197
  11. Corey Paul, Sempra eyes pipeline expansion to feed further phase at Port Arthur LNG SPG Global, June 21, 2019

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