It has been ordered by Sigma Drilling, a joint venture between Vantage, Norwegian businessman Bjarne Skeie and other investors.

The drillship is reported to be costing $673m and due for delivery from the South Korean shipbuilder in November 2015.

Through its investment of $31m in the joint venture entity, Sigma Drilling, Vantage will initially own about 42% of the equity in Sigma.

The