Seadrill Limited 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. The Company operates in three segments: floaters, jack-up rigs and tender rigs. Seadrill owns and operates a fleet of offshore drilling units, which consist of semi-submersible rigs, drillships, jack-up rigs and tender rigs, including units, which is under construction, which consists of drillships, semi-submersible rig, jack-up rigs and tender rigs. In addition, it operates approximately five tender rigs in association with Varia Perdana Sdn Bhd (Varia Perdana) and it provides the construction supervision, project management, and commercial management to all three new building jack-up rigs of Asia Offshore Drilling (AOD).