Ensco plc brings energy to the world as a global provider of offshore drilling services to the petroleum industry. For 25 years, we have focused on operating safely and exceeding customer expectations. We are the industry leader in customer satisfaction, ranking first again with top honors for 2012 in 10 of 16 categories in an independent industry survey. Operating one of the world’s newest ultra-deepwater fleets and largest fleets of active premium jackups, we have a major presence in the most strategic offshore basins across six continents.

Operating across six continents, our high-quality fleet (existing and under construction) includes 9 drillships, 13 dynamically-positioned semisubmersibles, 6 moored semisubmersibles and 46 premium jackups. In addition, we provide drilling management for three customer-owned deepwater rigs. Our rigs have drilled some of the most complex wells in virtually every major offshore basin around the globe.

Our customers are multinational integrated energy companies, national oil companies and independent operators. With safety and operational excellence as our highest priorities, our skilled employees consistently exceed customer expectations, using our proven Safe Systems of Work.

We manage our operations through five regional business units:

•  North and South America (excluding Brazil), based in Houston;
•  Brazil, based in Macaé;
•  Europe and the Mediterranean, based in Aberdeen;
•  Middle East and Africa, based in Dubai; and
•  Asia and Pacific Rim, based in Singapore.

Ensco quick facts:

World’s second largest offshore driller

•   9 drillships (includes 3 under construction)
• 13 dynamically-positioned semisubmersibles
•   6 moored semisubmersibles
• 46 premium jackups (includes 4 under construction)
•   3 deepwater managed units

Newest ultra-deepwater fleet

•  Average age: 3 years
•  3 more under construction

Industry-leading jackup fleet

• Largest fleet of active premium jackup rigs
• More 400’ water depth jackups than any other driller
• $2 billion+ invested in jackup fleet since 2005
• 3 ultra-premium harsh environment jackups under construction

Geographic reach

• Operations span six continents
• Drilling experience in virtually every major offshore basin
• Headquarters in London; major offices in Angola, Brazil, Mexico, Scotland, Singapore, UAE and United States

Strong financial position and investment-grade credit ratings

• Baa1 - Moody’s
• BBB+ - Standard & Poor’s

Stock listing: NYSE: ESV

Summary Financial Information