Port Arthur Gas Pipeline
| Part of the Global Gas Infrastructure Tracker, a Global Energy Monitor project. |
Port Arthur Gas Pipeline is a proposed natural gas pipeline in the southeastern United States.[1]
Location
The pipeline runs from Jefferson County, Texas, to St Landry Parish, Louisiana.[2][3]
Project details
Louisiana Connector
- Operator: Port Arthur Pipeline LLC[4]
- Owner: Sempra Energy[5]
- Capacity: 2 bcfd[6][7]
- Length: 72 mi[6]
- Cost: US$1.207 million[4]
- Status: Proposed[4]
- Start Year: 2023[4]
- Associated Infrastructure: Port Arthur LNG Terminal[4]
Texas Connector
- Operator: Port Arthur Pipeline LLC[4]
- Owner: Sempra Energy[5]
- Capacity: 2 billion cubic feet per day[5]
- Length: 31 mi[8]
- Diameter: 42-inches[9]
- Status: Proposed[4]
- Start year: 2023[4] (delayed)
- Originally 2022[5]
- Associated Infrastructure: Port Arthur LNG Terminal[4]
Louisiana Connector Amendment
- Operator: Port Arthur Pipeline LLC[4]
- Owner: Sempra Energy[5]
- Capacity: 70 million cubic feet per day (MMcf/d)[4]
- Length: 0.0 new kilometers, capacity expansion only[4]
- Cost: US$89 million[4]
- Status: Proposed[4]
- Start Year: 2027[4]
- Associated Infrastructure: Port Arthur LNG Terminal[4]
Louisiana Connector Extension
- Owner: Sempra Energy
- Parent company: Sempra Energy
- Capacity:
- Length: 252 mi[10]
- Diameter: 48 in[10]
- Status: Shelved
- Start year:
- Cost:
Background
The Port Arthur Pipeline is split into two main parts, according to Sempra's website: Port Arthur Pipeline – Texas Connector, Port Arthur Pipeline – Louisiana Connector.[11] The Port Arthur Gas pipeline will be operated by Port Arthur LNG, a subsidiary of Sempra Energy. The proposed pipeline was initially expected to be about 165 mi in length and 42 in in diameter, running from a proposed LNG storage site in Port Arthur, Texas, in Jefferson County, and ending near St. Landry Parish in Louisiana.[12] The pipeline would carry approximately 2 bcf/d of natural gas. Together, the pipeline and the Port Arthur facility was estimated to cost around $8 billion.[13]
In April of 2019, Federal Energy Regulatory Commission (FERC) approved the construction of the project.[14] The final EIS consisted of 38.9 mi and 131.3 mi of 42-in pipeline (170.2 mi total).[15] In June 2019, Port Arthur Pipeline LLC, a subsidiary of Sempra Energy, told FERC that the plan was altered to call for a 166-mi, 48-in-diameter pipeline with a transportation capacity of 2.5 bcf/d.[16]
Construction of both sections is expected to begin in the 2022, with commercial operations expected to begin in 2024.[4]
Since then, Sempra's infrastructure site notes the length of the segments as 72 mi and 34.2 mi.
As of March 2023 there was no evidence that construction had begun, so the project is presumed to be further delayed.
In December 2023 the broader Port Arthur LNG project reportedly landed financing and long-term contracts.[17]
In March 2025, the length of the Texas Connector Amendment project's length was modified slightly from 34.2 mi down to 31 mi.[18]
Louisiana Connector
According to Sempra's website, the Louisiana Connector was expected to begin construction in Q1 2025, but there was no evidence for this as of Q4 2025.[19]
Louisiana Connector Amendment
The expansion project proposes building a new pipeline compressor station in Beauregard Parish, Louisiana instead of Allen Parish, Louisiana as was originally proposed in the Louisiana Connector Project. The project does not involve laying any additional pipeline. The new compressor station will result in an additional 70 million cubic feet per day (MMcf/d). It has already been approved by the Federal Energy Regulatory Agency (FERC).[4]
Louisiana Connector Extension
An additional 252-mile pipeline was proposed to extend the pipeline's reach into northeastern Louisiana, called the Port Arthur Pipeline Louisiana Connector (PAPLC) Extension Project. Construction was expected to begin in 2022, and the pipeline was slated to go into operation 6–9 months upon completion of construction, pending FERC approval.[10]
As of 2023 no evidence for construction or further development of the project can be seen, and it is considered shelved. As of 2025 this continued to be the case, though the pipeline is still mentioned in summary overviews as a potential future expansion, so it is considered shelved.
Articles and resources
References
- ↑ Port Arthur Gas Pipeline, Sempra Energy website, accessed September 2017
- ↑ Sempra LNG. "PORT ARTHUR PIPELINE". portarthurlng.com. Retrieved 28 February 2020.
{{cite web}}: CS1 maint: url-status (link) - ↑ National Energy and Petrochemical Map , FracTracker, February 28, 2020
- ↑ 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.17 Natural Gas Data, Pipeline Projects Energy Information Agency, accessed July 12, 2021
- ↑ 5.0 5.1 5.2 5.3 5.4 Port Arthur LNG — Pipeline, Sempra LNG, accessed Nov. 2, 2021.
- ↑ 6.0 6.1 [https://sempralng.com/port-arthur-pipeline-louisiana-connector Port Arthur Pipeline – Louisiana Connector, Sempra LNG, accessed July 12, 2021
- ↑ "https://semprainfrastructure.com/what-we-do/energy-networks/port-arthur-pipeline-louisiana-connector".
{{cite web}}: External link in|title= - ↑ "Federal Register :: Request Access". unblock.federalregister.gov. Retrieved 2025-10-09.
- ↑ Natural Gas Data, Pipeline Projects Energy Information Agency, July 21, 2020
- ↑ 10.0 10.1 10.2 "Port Arthur LNG proposes 252-mile pipeline into northeast Louisiana". KNOE News. Retrieved 2021-11-08.
{{cite web}}: CS1 maint: url-status (link) - ↑ Sempra Natural Gas. "Natural Gas Infrastructure". SempraLNG. Retrieved 28 February 2020.
{{cite web}}: CS1 maint: url-status (link) - ↑ Port Arthur Pipeilne - Louisiana Connector, Sempra Energy, accessed January, 2018
- ↑ Kaitlin Rust, Proposed pipeline will run through several parishes in SWLA, KPLC, May 2, 2017
- ↑ Port Arthur LNG moves closer to FID with FERC authorization Oil and Gas Journal, April 18, 20197
- ↑ "https://www.energy.gov/sites/prod/files/2019/02/f59/final-eis-0517-port-arthur-liquefaction-project-v1-2019-01.pdf" (PDF).
{{cite web}}: External link in|title= - ↑ Corey Paul, Sempra eyes pipeline expansion to feed further phase at Port Arthur LNG SPG Global, June 21, 2019
- ↑ "Port Arthur LNG Lands Financing And Long-Term Contracts | ESG Review". esgreview.net. Retrieved 2025-10-09.
- ↑ "Federal Register :: Request Access". unblock.federalregister.gov. Retrieved 2025-10-10.
- ↑ "Port Arthur Pipeline Louisiana Connector - Sempra Infrastructure". Sempra Infrastructure. 2024-08-12. Retrieved 2025-10-10.
