SD Standard Drilling venture New World Supply taken advantage of rising offshore asset values to cash in its four platform supply vessels (PSVs).

The company, which is 34.4% owned by Oslo-listed SD Standard Drilling, has sold the 3,300-dwt World Diamond; World Peridot, World Pearl and World Opal (all built 2013).

SDSD did not disclose the sale price for the vessels, but said the consideration was higher than its book value for the quartet, which have been laid up in Norway since October and November 2016.