Phase 1 Alaska LNG pipeline advances with construction awards, pipe supply agreements
(UI) - Glenfarne Group has taken several steps toward early execution of Phase 1 of the Alaska LNG pipeline, advancing a multi-spread construction strategy, lining up pipeline contractors and securing preliminary line pipe supply agreements for the large-diameter project.
The Phase 1 development centers on a 739-mile, 42-inch natural gas pipeline designed to move gas from Alaska’s North Slope to in-state markets. Glenfarne is developing the project through 8 Star Alaska LLC, which is majority owned by Glenfarne with a 25% stake held by the State of Alaska through the Alaska Gasline Development Corporation. Mechanical completion is targeted for 2028, with first gas expected in 2029.
Glenfarne has conditionally selected Worley to provide engineering, procurement and construction management (EPCM) services for Phase 1, following completion of front-end engineering work sufficient to support a final investment decision. The EPCM appointment remains subject to final contract execution.
In parallel, Glenfarne issued conditional construction awards to multiple pipeline contractors following a competitive, multi-round bid process. The pipeline is planned to be built across four simultaneous construction spreads, with additional work potentially included for the 63-mile, 32-inch Point Thomson lateral. Contractors selected for various spreads include teams led by Precision Pipeline (MasTec), Price Gregory International (Quanta Services), Michels Pipeline, ASRC Energy Services, Barnard Pipeline, SICIM, Spiecapag and U.S. Pipeline, among others. Final construction agreements are still pending.
The developer has also executed preliminary agreements covering approximately two-thirds of the required line pipe for Phase 1. The project will require roughly 700,000 metric tonnes of API 5L X70 pipe for the mainline, plus an additional 25,000 metric tonnes for the Point Thomson lateral. Initial supply commitments were made with Corinth Pipeworks and Europipe, with POSCO International previously identified as a steel supplier. Glenfarne said pipe production is expected to begin this year, with deliveries into Alaska planned to support early construction activity.
On the supply side, Glenfarne has entered into multiple gas sales precedent agreements with North Slope producers, including ExxonMobil and Hilcorp Alaska, to secure feedstock for Phase 1. The company has also advanced nonbinding agreements with in-state customers, including ENSTAR Natural Gas and the Donlin Gold project, to anchor domestic demand for the pipeline.
Phase 2 of the Alaska LNG project would add a liquefaction and export terminal capable of producing up to 20 million tonnes per annum of LNG, though Glenfarne has structured the project so that Phase 1 can proceed independently to meet Alaska’s in-state gas needs.
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