ENSCO DS-6 Drillship Contracted to BP

04/02/2012

$522,000 Day Rate for Five-Year Term

More Than $1 Billion Added to Revenue Backlog

LONDON--(BUSINESS WIRE)-- Ensco plc (NYSE: ESV) announced today that it has entered into a five-year term drilling contract with BP for the new ENSCO DS-6 ultra-deepwater drillship at a rate of approximately $522,000 per day, plus cost adjustments. The contract adds more than $1 billion to Ensco’s revenue backlog. In addition, the contract includes two one-year options at mutually agreed rates.

ENSCO DS-6 recently was delivered from Samsung Heavy Industries’ shipyard in South Korea and is now undergoing BP requested and funded modifications in Singapore that include BP’s latest enhanced voluntary drilling standards. Ensco has been receiving a special standby day rate from BP since 1 February while this work is being completed. The scope and total cost of these modifications and upgrades are in the process of being finalized.

Chairman, President and Chief Executive Officer Dan Rabun commented, “We are very pleased that BP has chosen to contract ENSCO DS-6. BP is a repeat customer of our Samsung DP3 drillship series and we commend our crews currently working for BP for their safety record and operational performance, which favorably influenced the contracting for ENSCO DS-6.”

Mr. Rabun added, “ENSCO DS-6 increases the size of our active ultra-deepwater fleet to 10 rigs and reinforces Ensco’s position of having the newest ultra-deepwater fleet in the world with an average age of just two years.”

Upon completion of the modifications, the rig will mobilize to its first well location to complete acceptance testing before commencing drilling operations. The mobilization fee will be paid by BP in a lump sum upon completion of acceptance testing.

Based on current estimates, ENSCO DS-6 is scheduled to commence the five-year term contract in late fourth quarter 2012. Collectively, the modifications, mobilization fee and special standby day rate will be amortized over the primary five-year contract term.

ENSCO DS-6 is the fourth of five rigs in the Company’s Samsung DP3 drillship series. Ensco anticipates significant benefits from standardization for these rigs as it has with the ENSCO 8500 Series® ultra-deepwater rigs, Megathyst semisubmersibles and Keppel FELS premium jackups.

The Samsung DP3 ultra-deepwater drillships are equipped with advanced technological features for drilling deepwater wells including DPS-3 certified dynamic positioning, six ram 15,000 psi BOPs, two million pound hook load, 6,000-barrel active fluid systems, significant storage and deck space, and accommodations for up to 200 persons. The BOP for the ENSCO DS-6 drillship will have double-blind shear rams to meet BP’s specifications.

The uniform design of the company’s Samsung DP3 drillship series streamlines construction, operations, inventory management, training, regulatory compliance, repairs and maintenance. It also provides flexibility for customer-specific enhancements: in particular, the drillships may be modified to drill and complete wells in water depths up to 12,000’.

ENSCO DS-7, the fifth rig in the Company’s Samsung DP3 drillship series, is currently under construction in South Korea with delivery scheduled for the second half of 2013.

Ensco plc (NYSE: ESV) brings energy to the world as a global provider of offshore drilling services to the petroleum industry. For 25 years, the company has focused on operating safely and exceeding customer expectations. Ensco is ranked #1 for total customer satisfaction and received top honors in 12 of 16 other categories in the most recent annual survey by EnergyPoint Research. Operating the world’s newest ultra-deepwater fleet and largest fleet of active premium jackups, Ensco has a major presence in the most strategic offshore basins across six continents. Ensco plc (www.enscoplc.com) is an English limited company (England No. 7023598) with its registered office and corporate headquarters located at 6 Chesterfield Gardens, London W1J 5BQ.

Statements contained in this press release that are not historical facts are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Forward-looking statements include words or phrases such as “anticipate,” “believe,” “estimate,” “expect,” “intend,” “plan,” “project,” “could,” “may,” “might,” “should,” “will” and similar words and specifically include statements regarding expected financial performance, day rates and backlog, as well as the timing of delivery, mobilization, contract commencement, relocation or other movement of rigs. Such statements are subject to numerous risks, uncertainties and assumptions that may cause actual results to vary materially from those indicated, including downtime and other risks associated with offshore rig operations, relocations, severe weather or hurricanes; governmental action, civil unrest and political and economic uncertainties; terrorism, piracy and military action; risks inherent to shipyard rig construction; possible cancellation or suspension of drilling contracts as a result of mechanical difficulties, performance or other reasons; governmental regulatory, legislative and permitting requirements affecting drilling operations; our ability to attract and retain skilled personnel on commercially reasonable terms; environmental or other liabilities, risks or losses; and actual contract commencement dates. In addition to the numerous factors described above, you should also carefully read and consider “Item 1A. Risk Factors” in Part I and “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Part II of our most recent annual report on Form 10-K, which is available on the SEC’s website at www.sec.gov or on the Investor Relations section of our website at www.enscoplc.com. Each forward-looking statement speaks only as of the date of the particular statement, and we undertake no obligation to publicly update or revise any forward-looking statements, except as required by law.

Source: Ensco plc