Regulatory filing initiates permitting process

A regulatory filing submitted on Wednesday marks the start of the U.S. federal permitting process for Sempra Energy’s Port Arthur LNG North expansion, MarineLink reports. The same filing is described by Offshore Engineer as the first step toward a major increase in export capability on the Gulf Coast.

Scope of the North project

The proposed North project would add four liquefaction trains capable of producing up to 27 million metric tonnes per annum (mtpa) of LNG, equivalent to roughly 6.73 mtpa per train under optimal conditions, according to the filing details cited by Baird Maritime. In addition, the plan includes three on‑site LNG storage tanks and marine facilities that could accommodate two berths for loading tankers.

LNG Prime notes that Sempra has formally requested the U.S. Federal Energy Regulatory Commission (FERC) to begin the pre‑filing stage for this 27 mtpa expansion, confirming the scale of the proposed infrastructure.

Site location and existing assets

The new facilities would be constructed on land already owned by Port Arthur LNG in Southeast Texas, as highlighted by MarineLink. Sempra is concurrently developing Phase 1 and Phase 2 at the same site, together delivering a combined capacity of 26 mtpa.

Timeline and market context

If the permits are granted and construction proceeds without delay, the North project could start exporting LNG in the second half of 2034, Offshore Engineer indicates. No cost estimate has been disclosed in any of the filings.

The expansion is framed as part of a broader industry push to meet rising global demand for long‑term LNG supplies for power generation and industrial use. Baird Maritime points out that the United States remains the world’s largest LNG exporter, with dozens of Gulf Coast projects proposed in recent years, underscoring the strategic importance of Southeast Texas as a major export hub.

What this means for operators

Ship owners and charterers should monitor the permitting timeline closely, as the addition of two new berths could increase berth availability and slot flexibility at Port Arthur once operational. The projected 27 mtpa boost may translate into higher cargo volumes, potentially prompting a surge in demand for LNG carriers operating out of the Gulf Coast. Operators that already service Sempra’s Phase 1/2 facilities will likely benefit from expanded call‑on opportunities, while those without current exposure may consider positioning vessels to capture new business as the North project progresses toward its 2034 export start‑date.