Ensco Plc provides offshore drilling services to the petroleum industry. The company provides drilling services to major international, government-owned and independent oil and gas companies. It operates its business through the following segments: Floaters, Jackups and Others. The Floaters segment includes drill ships and semisubmersible rigs. The Jackups segment engages in providing contract drilling service. The Others segment consists of management services on rigs owned by third-parties. Ensco was founded on July 3, 1905 and is headquartered in London, the United Kingdom.