A construction support vessel (CSV) owned by Stig Remoy's Olympic Subsea has been fixed on a year-long contract and two more have won short-term employment.

The 4,823-dwt Olympic Triton (built 2007) has been fixed to an unnamed international oil company for 12 months for work in West Africa, commencing this quarter.

Latest AIS data shows the vessel has been active during the past few days at the Erha field in offshore Nigeria, where ExxonMobil has floating production, storage and offloading (FPSO) unit.

At the same time the 3,051-dwt Olympic Artemis (built 2015) and the 4,823-dwt Olympic Intervention IV (built 2008) have both been fixed on two-month contracts in the renewable market, plus extension options.

"For the 2019 season, Olympic Subsea’s revenues within the renewable market will represent a larger share than the revenues from oil & gas," the company said in a filing on Wednesday.

Last week, Olympic fixed another of its vessels for six firm months to Siemens Gamesa subsidiary Adwen to work on windfarm projects in the North Sea and Baltic Sea.