Project Overview
Congo LNG develops the Nené and Litchendjili fields in the Republic of the Congo’s Marine XII permit through two floating-LNG phases. Eni is the operator. Phase 1 entered operation at the end of 2023, Phase 2 was launched early in December 2025, and Nguya FLNG exported its first LNG cargo in February 2026. Combined capacity is 3 million tonnes of LNG per year, equivalent to about 4.5 billion cubic metres of gas annually.
Two-Phase Facility System
| Phase | Facility | Function | Status |
|---|---|---|---|
| Phase 1 | Tango FLNG | Floating liquefaction; 0.6 mtpa LNG | Operating since the end of 2023 |
| Phase 1 | Excalibur FSU | Floating LNG storage | In operation |
| Phase 2 | Scarabeo 5 | Converted drilling unit for gas treatment, separation and compression | In operation |
| Phase 2 | Nguya FLNG | Floating liquefaction, storage and export | First cargo in Feb 2026; now operating |
Principal Participants
| Execution Area | Principal Party | Scope | Status |
|---|---|---|---|
| Development and operation | Eni | Marine XII resource development, two-phase project organization and production operations | In production |
| Nguya FLNG EPCIC and O&M | Wison New Energies | Nguya FLNG EPCIC followed by operating and global maintenance services | Delivered and operating |
Key Milestones
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Phase 1 starts operation
Tango FLNG and Excalibur FSU form the initial operating system.
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Phase 2 launches early
Nguya FLNG arrives and gas is introduced into the Phase 2 system.
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First LNG cargo
Nguya FLNG completes its first loading and enters operation.
Principal Sources
Eni Phase 1 facilities; Eni Phase 2 launch; Eni current project capacity; Wison Nguya FLNG update.
Participants and roles
Key participants and their project roles.
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Eni
A global energy-technology company spanning upstream, gas and LNG, downstream and lower-carbon businesses.
OperatorDevelopment of the Marine XII gas resources and organization and operation of both Congo LNG phases.
- Scope
- Ownership and governance