Dockwise has secured a contract from Statoil Petroleum to transport two new jack-up drilling rigs.
The contract is the largest of several contracts signed by the company this January, with a combined value of around $65m.
Dockwise will use heavy marine transport vessels, the Blue Marlin and the White Marlin, to transport the rigs to Norway.
The two Cat-J rigs will be the biggest and heaviest jack-up rigs ever to be transported on a heavy marine transport vessel.
The rigs are on order with a South Korean yard and are scheduled to be transported between the second half of 2016 and 2017.
Statoil will use the Cat-J rigs for production drilling on Gullfaks and Oseberg. They will be customised to operate in harsh environments for both surface and subsea wells and be able to operate at water depths from 70m to 150m and drill wells down to 10,000m.
Dockwise is a wholly-owned subsidiary of Royal Boskalis Westminster (Boskalis), which operates in the dredging, maritime infrastructure and maritime services sectors.
The company provides a wide variety of marine services and contracting for the offshore energy sector including subsea, heavy transport, lifting and installation through Boskalis Offshore and Dockwise and towage and salvage through SMIT.
Boskalis has a fleet of over 1,100 units and operates in around 75 countries across six continents.