Alaska LNG
Overview
Alaska LNG is a mega-scale energy infrastructure project that transports natural gas produced on the North Slope of Alaska, United States, through a large pipeline approximately 800 miles (about 1,300 km) long to Nikiski on the Kenai Peninsula in the south, then processes it into liquefied natural gas (LNG) at a liquefaction plant and exports it to Asian markets. It is one of the world's largest undeveloped gas field development and export projects, with total project costs estimated to exceed $40 billion, and AGDC (Alaska Gasline Development Corporation), a state-owned corporation under the Alaska state government, has participated as the project entity.
Main Details
Background
Alaska is one of the leading natural gas-bearing regions in the United States. Prudhoe Bay and Point Thomson on the North Slope are assessed to hold gas reserves on the scale of tens of trillions of cubic feet (Tcf). However, most of the gas produced during crude oil production has been reinjected into formations or consumed as local power generation and facility fuel, and there was no infrastructure to commercialize it.
Historically, Alaska was the first U.S. LNG-exporting region, exporting LNG to Japan through the Kenai LNG plant in 1969. This plant ceased operations around 2015, after which Alaska sought a large-scale project to fully export North Slope gas. In 2007, the State of Alaska enacted the Alaska Gasline Inducement Act (AGIA) to induce private companies to build the pipeline, and the project structure was later reorganized into a state-led approach.
Project Structure
- Pipeline: A gas pipeline of about 800 miles and roughly 42 inches in diameter, running north-south across Alaska from the North Slope to Nikiski.
- Liquefaction Plant: A liquefaction, storage, and export terminal planned for the Nikiski area, with an initial concept of up to 20 million tons per annum (20 MTPA).
- Gas Supply Sources: Associated gas and non-associated gas fields in North Slope oil fields such as Prudhoe Bay and Point Thomson.
- Project Entity: Led by AGDC; ExxonMobil, BP, and ConocoPhillips once held equity stakes, but their interests were transferred to AGDC after 2016.
Progress
Around 2013, the project began in earnest as a consortium involving ExxonMobil, BP, and ConocoPhillips. In 2020, the U.S. Federal Energy Regulatory Commission (FERC) approved the project, and the U.S. Department of Energy (DOE) granted permission to export to non-FTA countries. However, the project was delayed several times due to soaring construction costs and difficulties in securing long-term buyers.
Economics and Challenges
The biggest obstacle is the overwhelming capital cost. The initial estimated investment cost of $40 billion to $65 billion is among the largest for a single project in the world, and construction of a pipeline crossing Arctic permafrost zones, extreme climate, environmental and Native consultations, and federal and state permitting procedures compound the burden. In addition, securing long-term sales contracts of more than 20 years is essential to gain an advantage in price competition with existing and new LNG suppliers such as Qatar, the U.S. Gulf Coast, and Australia.
Recent Trends
In 2024–2025, Alaska LNG is drawing international attention again. In 2025, AGDC signed a cooperation agreement with Glenfarne Group, a U.S. energy infrastructure investment firm, and the structure shifted so that Glenfarne acquired about 75% of the project equity and leads development. At the same time, a plan is being discussed to reduce the project scale in phases and begin with a first phase of 8 to 10 million tons per annum.
The U.S. Trump administration stated through a 2025 energy priority executive order that it would actively support Alaska resource development, including Alaska LNG, increasing the possibility of federal permitting and financial support. In addition, long-term contract negotiations are underway with Asian buyers such as South Korea, Japan, and Taiwan, and Northeast Asian countries seeking energy security and supply source diversification have shown strong interest. Meanwhile, within Alaska, as the problem of insufficient gas for winter power generation and heating due to depletion of the Cook Inlet gas fields has become real, debate continues over how to pursue both the large-scale export project and in-state gas supply.
Related Topics
- [[LNG]]
- [[Natural gas]]
- [[Alaska]]
- [[Energy security]]
- [[Korea Gas Corporation]]