Sempra Files Federal Permit for 27 MTPA Port Arthur LNG North Expansion
Port Arthur LNG has filed for federal permits on a major expansion of its Southeast Texas export terminal, according to a Reuters report via BOE Report, with the project capable of producing up to 27 million metric tons per annum (mtpa) of LNG.
Market Impact
The proposed Port Arthur LNG North Project would add four liquefaction trains, each rated for up to 6.73 mtpa under optimal conditions, according to the regulatory filing made Wednesday. The buildout would also include three LNG storage tanks and marine facilities with as many as two LNG berths for tanker loading, all sited on land Port Arthur LNG already owns.
Sempra is already developing Port Arthur Phase 1 and Phase 2, which together carry a combined capacity of 26 mtpa. If the North Project clears federal review and moves to construction, exports could begin in the second half of 2034, per the filing. Sempra has not disclosed a cost estimate for the project. The filing lands amid a wave of Gulf Coast LNG expansion proposals as US developers position to serve rising global demand for long-term gas supply contracts, reinforcing Southeast Texas’ status as one of the world’s largest LNG export hubs.
What It Means for Subcontractors
- The four-train, 27 mtpa scope signals a construction cycle on the scale of Port Arthur’s existing 26 mtpa Phase 1 and Phase 2 work, meaning another multi-year pipeline of mechanical, E&I, and pipefitting subcontract packages once EPC contractors are named.
- Federal permitting just started, so a construction start is likely years out. With exports targeted for the second half of 2034 “if approved and constructed,” subs should treat this as a long-range planning signal, not a near-term bid opportunity.
- Marine construction and civil trades should note the plan includes three LNG storage tanks and up to two additional LNG berths, work that typically requires specialized cryogenic and marine construction expertise beyond standard industrial building trades.
- Because the project sits on land Port Arthur LNG already owns, site prep and civil packages could move faster once permitted than projects requiring new land acquisition, worth tracking for early-mover subcontract opportunities.
- No cost estimate has been released, so subs should watch for Sempra’s FEED announcements and EPC contractor selection, which will typically follow federal approval and set the timeline for subcontract package releases.
