Daewoo Shipbuilding & Marine Engineering (DSME) bagged a bumper $3bn order to build four new ultra-deepwater drillships for US-based Transocean.
DSME's facility in Okpo, South Korea will deliver the first unit in mid-2015 and the remaining three drillships will be delivered from the shipyard at approximately six-month intervals thereafter.
The four drillships are designed to operate in water depths of up to 12,000 feet and drill wells to 40,000 feet.
Transocean has inked a 10-year contract to charter the four drillships to oil major Shell.