June 26 Oil and natural gas driller Ensco Plc said it has ordered another ultra-deepwater drillship for about $645 million to meet rising demand.
Exploration and production companies are expanding into new geographies and unconventional fields to meet demand.
Ensco, the owner of the world's second-largest offshore drilling fleet, said the rig is scheduled for delivery in the fourth quarter of 2014.
"Customer demand has continued to rise and has become even more broad-based due to new discoveries in emerging basins," said CEO Dan Rabun.
The new drillship, like the one ordered in April, can drill in water depths of up to 12,000 feet.
London-based Ensco, which already has three active ultra-deepwater drillships, said it has one more option to build a drillship at Samsung Heavy Industries Co's shipyard in South Korea.
Ensco rose 1.5 percent to $42.80 on Tuesday on the New York Stock Exchange.