Rosneft and North Atlantic Drilling had signed a contract stipulating long-term cooperation in May 2014, with long-term lease agreements for drilling equipment suited to harsh climatic conditions planned up to 2022. The contract anticipated that Rosneft would acquire a significant stake in North Atlantic Drilling, with the latter entering Russia's onshore drilling market, and the signing of long-term contracts for onshore and offshore drilling. The contract included provisions for six offshore drilling rigs, anticipating up to nine rigs in the future.
North Sea Drilling Ltd's fleet consists of nine drilling rigs, including five semi-submersible rigs, a drill ship and three jackup rigs. The company is 70 percent owned by Bermuda-incorporated, London managed Seadrill Limited.