The PX121 design duo will join Golden Energy when they are delivered in the first quarter of next year.
Ulstein’s shipowning wing Blue Ship Invest paid $44m for the two PSVs in February having sold off the previous series inked to its own account to Herbjorn Hanson’s start-up Nordic American Offshore.
Golden Energy and Ulstein have an existing relationship.
The owner has a series of newbuildings under construction at Nantong Rainbow Offshore & Engineering in China to the same PX121 Ulstein blueprint.