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NOV to Supply Submerged Swivel and Yoke System for Argentina’s First FLNG Project

APL brings proven Submerged Swivel and Yoke (SSY) technology to Argentina’s first FLNG project in the Gulf of San Matías.

Render of an offshore vessel with a view underwater

Sep 17, 2025

NOV has been awarded a contract to supply the APL Submerged Swivel and Yoke (SSY) system for Argentina’s first offshore floating LNG (FLNG) project. The development is led by Southern Energy SA, a consortium of Pan American Energy, Pampa Energía, Harbour Energy, YPF, and Golar LNG.

The APL SSY delivers safe mooring and uninterrupted gas transfer through a subsea pipeline. By removing the need for a jetty, the system reduces topside infrastructure and overall project complexity. Built on proven turret and swivel technology, the compact SSY is engineered for reliable, long-term service over the life of the field or terminal. Its integrated design makes it ideal for redeployed or remote field FLNG developments.

The redeployed Hilli Episeyo FLNG, which previously operated offshore Cameroon, will handle about 2.4 million tonnes of LNG per year located in the Gulf of San Matías, offshore Argentina.

This award marks NOV’s first FLNG engagement in Argentina.

Learn more about our offshore mooring and loading systems at www.nov.com/apl.