US Approves $8.2 Billion Offshore LNG Port Planned for 2029

The US Maritime Administration approved the deepwater-port license application for ST LNG on 28 October 2026, clearing a major federal hurdle for an $8.2 billion offshore liquefied natural gas export project near Matagorda, Texas.

The approval authorizes construction and operation under the federal deepwater-port process, but it does not mean the facility is built, financed or producing LNG. The Department of Transportation says construction is expected to begin in 2027 and operations in 2029. Those dates remain project expectations.

An 8.4 million-tonne export design

ST LNG's approved design calls for four liquefaction systems rated at 2.1 million tonnes a year each, for combined capacity of 8.4 million tonnes a year. The planned complex would sit about 10.4 miles offshore and include 20 platforms, four floating LNG storage units, four mooring systems and 7.7 miles of pipeline.

The federal environmental record says the base-case design would require about 1.32 billion standard cubic feet of feed gas per day. Gas is expected to come from the Tres Palacios storage and trading hub and the Williams Markham gas-processing plant through an existing Transco pipeline near the proposed port.

At full design output, the project would average about 23,000 tonnes of LNG a day. That is Agrilinkage's calculation from 8.4 million tonnes divided by 365 days, and it assumes full-year operation at nameplate capacity. Maintenance, commissioning and market conditions would reduce actual output in some periods.

Why an offshore port changes the logistics

The project replaces a conventional shore-based export terminal with a network of offshore platforms, floating storage units and ship-to-ship loading. The government says this location should move LNG-carrier traffic away from more congested onshore port areas and reduce collision and safety risks. The final environmental impact statement evaluated the proposal and alternatives, but approval does not eliminate construction, marine, weather or operational risk.

The plan envisions LNG carriers with typical cargo capacity between 125,000 and 180,000 cubic metres. The original application said each floating storage unit could transfer a cargo roughly once every 13 days, while the full project could receive up to 25 carrier calls per phase each year.

A large project, but still an early-stage one

The Department of Transportation says the development could support about 2,000 construction jobs and as many as 855 permanent jobs. It also says the project would expand US LNG export capacity by 7% to 9%. These are government and applicant estimates tied to a planned facility, not observed economic results.

The $8.2 billion figure works out to roughly $976 million of planned capital per million tonnes of annual LNG capacity. This Agrilinkage calculation is a broad project-intensity ratio, not a forecast of cost per tonne produced. Financing structure, inflation, construction contracts, offshore installation and commissioning performance could all materially change the final cost.

The license decision is notable because MARAD says it completed the final environmental impact statement in 410 days, nearly 3.7 years faster than the historical average for deepwater-port reviews. That faster process may matter beyond this project if other offshore energy developers use it as a benchmark, although each application still has its own technical and environmental record.

What the decision means for food and the physical economy

LNG export capacity affects more than the gas sector. Higher export demand can influence regional gas flows and price relationships, while natural gas is the principal feedstock for ammonia and nitrogen fertilizer. A single project does not determine fertilizer costs, and US gas supply, storage, weather and global LNG demand all pull in different directions. The relevant signal for agriculture will be whether new export capacity tightens domestic gas balances during high-demand periods.

The project could also add demand for offshore fabrication, specialist vessels, compressors, cryogenic equipment and pipeline services. Its proposed 2029 start means those supply-chain effects would arrive in stages rather than immediately.

What to watch next

The next decisive milestones are financing, final investment commitments, construction awards, offshore fabrication and adherence to the 2027 construction target. The license removes a key federal obstacle, but the project's commercial reality will depend on capital, customers, engineering execution and any remaining permits or conditions.

Primary sources: US Department of Transportation approval announcement; Federal Register notice for the final environmental impact statement; and ST LNG's project description.

Methodology and disclosure: Agrilinkage distinguished the license approval from construction and operation, cross-checked the capacity and project layout against the federal environmental record, and calculated daily output and capital intensity from disclosed figures. The illustration is an original Agrilinkage editorial image generated for this article and is not a depiction of the actual proposed facility.