Norway's Solstad Offshore has shed more non-core tonnage after sealing its $2bn restructuring last year.
The offshore vessel owner is pursuing a plan to offload dozens of ships as part of the overhaul of the company.
It said it has delivered three laid-up platform supply vessels to an unnamed new owner.
The 3,250-dwt sisterships Sea Angler (built 2007), Sea Bass and Sea Turbot (both built 2008) were part of the fleet of John Fredriksen's Deep Sea Supply, which merged with Solstad in a previous reorganisation.