How does a floating LNG facility differ from a traditional onshore LNG terminal?

Unlike onshore terminals that require vast tracts of coastal land, storage tanks, and heavy marine dredging, an FLNG facility liquefies, stores, and transfers natural gas entirely onboard a specialized vessel moored offshore. This minimizes the onshore environmental footprint, utilizes existing subsea pipelines, and allows for modular construction in specialized shipyards, which can reduce overall project lead times.

Why has it taken so long for the US to develop its first offshore FLNG project?

The US has abundant coastal land and highly developed pipeline networks, which naturally favored the construction of large-scale onshore terminals during the first wave of the shale gas boom. Additionally, navigating the dual regulatory oversight of the Federal Energy Regulatory Commission (FERC) for onshore elements and the Maritime Administration (MARAD) for deepwater ports created complex bureaucratic hurdles that took years for developers to successfully resolve.

What are the main market advantages of Delfin's modular FLNG approach?

Delfin's modular strategy allows it to add liquefaction capacity in increments of approximately 3.5 MTPA per vessel, rather than waiting to finance and build a massive 15+ MTPA onshore phase. This significantly lowers the financial barrier to entry, reduces investment risk, and allows the company to sign smaller, more flexible supply contracts with a wider variety of global utility buyers.

Rigzone · June 4, 2026 (Jun 4) · 1 min read

Delfin to Proceed with US' First Floating LNG Project

Analysis

AI-assisted analysis · reviewed by Yuri Kan

Delfin Midstream's decision to move forward with its $5 billion floating liquefied natural gas (FLNG) project off the coast of Louisiana marks a pivotal shift in the US LNG export landscape. By utilizing offshore floating liquefaction technology rather than traditional land-based terminals, the project introduces a more agile, lower-emission, and cost-effective model to the North American market. This development signals growing commercial confidence in offshore liquefaction, which has previously been deployed primarily in Africa and Asia.

Key Facts

Delfin Midstream is advancing its offshore floating liquefied natural gas (FLNG) project in the US Gulf of Mexico with a projected investment of $5 billion.
The project is set to become the first operational floating LNG export facility in the United States, located approximately 40 miles off the coast of Cameron Parish, Louisiana.
The facility will utilize existing offshore pipeline infrastructure to source natural gas, reducing the need for new onshore pipeline construction.
The Delfin LNG deepwater port is designed to support up to four FLNG vessels, yielding a total export capacity of approximately 13 million metric tons per annum (MTPA).
The project leverages a modular design, allowing for incremental capacity additions and lower initial capital expenditure compared to massive onshore terminals.

Background & Context

Historically, the US LNG export boom has been driven by massive, land-based liquefaction terminals along the Gulf Coast, such as Sabine Pass and Corpus Christi. While highly productive, these onshore projects require extensive land footprints, complex environmental permitting, and massive upfront capital. Floating LNG technology, pioneered globally by companies like Shell with the Prelude FLNG and Petronas in Malaysia, offers a way to bypass onshore bottlenecks by liquefying gas directly at sea, though it has taken years for US regulators and developers to align on offshore export frameworks.

Market Impact

The success of the Delfin project could catalyze a new wave of offshore energy developments in the US, proving the regulatory and economic viability of domestic FLNG. For global gas markets, this adds a highly flexible source of supply that can be scaled up relatively quickly to meet demand in Europe and Asia. Onshore pipeline operators stand to benefit from new delivery points, while traditional onshore LNG developers may face stiffer competition from Delfin's lower tolling fees and faster deployment timelines.

What to Watch

Industry observers should closely watch for the formal Final Investment Decision (FID) on the individual FLNG vessels and the finalization of remaining long-term sale and purchase agreements (SPAs) with global buyers. Additionally, the construction timeline for the first vessel, typically built in Asian shipyards, will serve as a critical benchmark for the project's target commissioning date. Regulatory compliance monitoring by the Maritime Administration (MARAD) and the US Coast Guard will also remain key milestones.

Frequently Asked Questions

How does a floating LNG facility differ from a traditional onshore LNG terminal?: Unlike onshore terminals that require vast tracts of coastal land, storage tanks, and heavy marine dredging, an FLNG facility liquefies, stores, and transfers natural gas entirely onboard a specialized vessel moored offshore. This minimizes the onshore environmental footprint, utilizes existing subsea pipelines, and allows for modular construction in specialized shipyards, which can reduce overall project lead times.
Why has it taken so long for the US to develop its first offshore FLNG project?: The US has abundant coastal land and highly developed pipeline networks, which naturally favored the construction of large-scale onshore terminals during the first wave of the shale gas boom. Additionally, navigating the dual regulatory oversight of the Federal Energy Regulatory Commission (FERC) for onshore elements and the Maritime Administration (MARAD) for deepwater ports created complex bureaucratic hurdles that took years for developers to successfully resolve.
What are the main market advantages of Delfin's modular FLNG approach?: Delfin's modular strategy allows it to add liquefaction capacity in increments of approximately 3.5 MTPA per vessel, rather than waiting to finance and build a massive 15+ MTPA onshore phase. This significantly lowers the financial barrier to entry, reduces investment risk, and allows the company to sign smaller, more flexible supply contracts with a wider variety of global utility buyers.

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