Four anchor-handlers are said to be leaving the North Sea sector as owners reorganise capacity.
Broker Westshore said one ship will take on yard work, while the other three are heading off to other markets.
The vessels were named as the 297-bp Siem Emerald and Siem Pearl (both built 2009), the 285-bp Boa Bison (built 2014), which was brought out of layup in April, and the 267-bp Boa Jarl (built 2015).
