The scope of the deal has been expanded to also include three of the four Cat D semi-submersible rigs currently under construction at Daewoo Shipbuilding & Marine Engineering in South Korea.
The two-year deal extends the partnership between Statoil and Altus, previously known as Aker Solutions' Well Intervention Services, until early 2017.
"Statoil has the industry's most ambitious recovery rate target for offshore oil and gas wells," said Halle Aslaksen, president of Altus Intervention's Scandinavian operation.
The