Norwegian energy giant Equinor has moved to secure platform supply vessels (PSVs) via charters worth more than NOK 2.5bn ($236m) including options.

The company said term contracts for six ships in the North Sea have been awarded to five domestic shipowners in total.

Simon Mokster Shipping owns two of these — the 5,300-dwt Stril Luna (built 2014) and Stril Mar (built 2016).