CoreMarine, Jumbo Offshore win FLNG installation contract offshore Argentina
(WO) - CoreMarine and Jumbo Offshore have been awarded a contract to transport, install and hook up floating LNG (FLNG) infrastructure offshore Argentina, supporting development of gas export capacity in the Golfo San Matías.
The contract, awarded by Southern Energy S.A. (SESA), covers installation of soft-yoke (SSY) mooring systems and hook-up of the Hilli Episeyo FLNG vessel and a second MKII FLNG unit. The project is backed by a consortium including Pan American Energy, YPF, Pampa Energía, Harbour Energy and Golar LNG.
Scope of work includes engineering, transportation, offshore installation and pre-commissioning of the mooring systems, along with riser installation, subsea construction and final hook-up of the FLNG units. The SSY systems, supplied by NOV, will allow the vessels to weathervane around a single mooring point, eliminating the need for fixed infrastructure.
Jumbo Offshore will execute transport and heavy-lift installation of the mooring systems, including piling operations, while CoreMarine will carry out diving, subsea construction and hook-up activities.
The offshore campaign will involve multi-vessel operations, including heavy lifting, riser installation, saturation diving and simultaneous operations (SIMOPS), supported by diving support vessels and tugs.
Project management and engineering began in early 2026. Installation of the Hilli Episeyo FLNG unit is scheduled for 2027, with the second FLNG unit expected to follow in 2028.
The project marks the first application of soft-yoke mooring technology in Argentina and represents a step forward in the country’s efforts to expand offshore gas development and LNG export capability.


