Norwegian shipowner SD Standard Drilling has taken a hit as it revalued its VLCC and platform supply vessels (PSVs) in the third quarter.

The Oslo-listed investment company, backed by tycoon Oystein Stray Spetalen, said a change in the fair value of its vessels meant a $6.2m impairment.

Standard Drilling does not report revenue, but said the net loss was $6.14m