Three Norwegian OSV players have clinched new frame agreements with Aker BP - with closer relationships possible in the future.

The deals cover platform supply vessel (PSV) services off Norway.

Solstad Offshore, Eidesvik Offshore and Simon Mokster said their agreements are for three firm years, with two options of two years each.

Vessels will be on call to Aker BP each year, which is expected "to significantly contribute to an increased utilisation" of its fleet, Solstad added.