Ensco PLC

Ensco plc is a multinational oil and gas services company headquartered in London, United Kingdom. It is the world's second-largest offshore oil and gas well drilling company, and has 49 offshore jack-ups, seven drillships and 20 semi-submersible drilling rigs.With over 7,000 employees, and annual revenue in the $2.3 billion range, the Company is publicly traded on the New York Stock Exchange under the symbol ESV.