In collaboration with suppliers, Statoil said it is developing the Cat-I rig to decrease its environmental footprint and help reduce costs, as well as avoid growing competition for rigs capable of drilling in Arctic conditions.

"We need an overall strategy that will help to explore and develop our Arctic basins in a safe, sustainable and cost-effective manner," Statoil executive vice president Tim Dodson told delegates at the World Petroleum Congress in Moscow on Monday.

Speaking