|Seadrill Limited (Seadrill) an offshore drilling contractor providing worldwide offshore drilling services to the oil and gas industry. Its primary business is the ownership and operation of jack-up rigs, tender rigs, semi-submersible rigs and drillships for operations in shallow, mid and deepwater areas, and in benign and harsh environments. It operates in three segments: floaters (world-wide), jack-up rigs (world-wide) and tender rigs (mainly in south-east Asia and Africa). Seadrill owns and operates a fleet of 59 offshore drilling units, which consist of 13 semi-submersible rigs, nine drillships, 21 jack-up rigs and 16 tender rigs, including 16 units, which is under construction, which consists of five drillships, one semi-submersible rig, five jack-up rigs and five tender rigs. On November 28, 2012, the Company acquired 65.95% interest in Asia Offshore Drilling Limited. In May 2013, the Company sold T-15 tender rig to Seadrill Partners LLC.