Daewoo Shipbuilding and Marine Engineering (DSME ) has secured a $1.1bn contract to build a drill ship and a semi-submersible rig.

The South Korean company secured the contract from an unnamed US-based drilling company and is scheduled for delivery in 2013.

The DSME-10000-type drill ship will have a length of 243m, a breadth of 42m and will be built at the Okpo Shipyard.

The vessel has a maximum drilling capacity of 40,000ft in a sea depth of 10,000ft.

The contract brings DSME’s total orders for this year to about $9.9bn, close to its $10bn annual target.