UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
     Washington, D.C. 20549     

	
 	
FORM 10-Q

	
		
(Mark One)	
x	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended September 30, 2015	
OR

		
o	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
For the transition period from                    to                   	

Commission File Number 1-8097

  Ensco plc
(Exact name of registrant as specified in its charter)

	
			
England and Wales
(State or other jurisdiction of
incorporation or organization)
 
6 Chesterfield Gardens
London, England
(Address of principal executive offices)	 	98-0635229
(I.R.S. Employer
Identification No.)
 
W1J 5BQ
(Zip Code)	
 Registrant's telephone number, including area code:   44 (0) 20 7659 4660
  
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  Yes  x   No  o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes  x         No  o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.

							
Large accelerated filer	 	x	  	Accelerated filer	 	o	
 	 	 	 	 	 	 	
Non-Accelerated filer	 	o   (Do not check if a smaller reporting company)	  	Smaller reporting company	 	o	

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes   o       No   x
 
As of October 23, 2015 , there were 235,475,102 Class A ordinary shares of the registrant issued and outstanding.

ENSCO PLC
INDEX TO FORM 10-Q
FOR THE QUARTER ENDED SEPTEMBER 30, 2015

	
		
PART I      FINANCIAL INFORMATION	 	
 	 	
ITEM 1.   FINANCIAL STATEMENTS	 	
 	 	
Report of Independent Registered Public Accounting Firm	3	
 	 	
Condensed Consolidated Statements of Operations
Three Months Ended September 30, 2015 and 2014	4	
 	 	
Condensed Consolidated Statements of Operations
Nine Months Ended September 30, 2015 and 2014	5	
 	 	
Condensed Consolidated Statements of Comprehensive Income (Loss)
Three Months Ended September 30, 2015 and 2014	6	
 	 	
Condensed Consolidated Statements of Comprehensive Income (Loss)
Nine Months Ended September 30, 2015 and 2014	7	
 	 	
Condensed Consolidated Balance Sheets
September 30, 2015 and December 31, 2014	8	
   	 	
Condensed Consolidated Statements of Cash Flows
Nine Months Ended September 30, 2015 and 2014	9	
 	 	
Notes to Condensed Consolidated Financial Statements	10	
 	 	
ITEM 2.   MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	42	
 	 	
ITEM 3.   QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	61	
 	 	
ITEM 4.   CONTROLS AND PROCEDURES	62	
 	 	
PART II     OTHER INFORMATION	 	
 	 	
ITEM 1.   LEGAL PROCEEDINGS	63	
 	 	
ITEM 1A. RISK FACTORS	65	
 	 	
ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	66	
 	 	
ITEM 6.  EXHIBITS	67	
 	 	
SIGNATURES	68	

FORWARD-LOOKING STATEMENTS
  
Statements contained in this report that are not historical facts are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended.  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; dividends; expected utilization, day rates, revenues, operating expenses, contract terms, contract backlog, capital expenditures, insurance, financing and funding; the availability, delivery, mobilization, contract commencement or relocation or other movement of rigs and the timing thereof; future rig construction (including construction in progress and completion thereof), enhancement, upgrade or repair and timing and cost thereof; the suitability of rigs for future contracts; the offshore drilling market, including supply and demand, utilization rates, day rates, customer drilling programs, stacking of rigs, effects of new rigs on the market and effects of declines in commodity prices; general market, business and industry conditions, trends and outlook; future operations; the impact of increasing regulatory complexity; expected contributions from our rig fleet expansion program and our program to high-grade the rig fleet by investing in new equipment and divesting selected assets and underutilized rigs; expense management; and the likely outcome of litigation, legal proceedings, investigations or insurance or other claims and the timing thereof.

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, including rig or equipment failure, damage and other unplanned repairs, the limited availability of transport vessels, hazards, self-imposed drilling limitations and other delays due to severe storms and hurricanes and the limited availability or high cost of insurance coverage for certain offshore perils, such as hurricanes in the Gulf of Mexico or associated removal of wreckage or debris;	

•	changes in worldwide rig supply and demand, competition or technology, including as a result of delivery of newbuild drilling rigs;	

•	changes in future levels of drilling activity and expenditures, whether as a result of global capital markets and liquidity, prices of oil and natural gas or otherwise, which may cause us to idle or stack additional rigs;	

•	governmental action, terrorism, piracy, military action and political and economic uncertainties, including uncertainty or instability resulting from civil unrest, political demonstrations, mass strikes, or an escalation or additional outbreak of armed hostilities or other crises in oil or natural gas producing areas of the Middle East, North Africa, West Africa or other geographic areas, which may result in expropriation, nationalization, confiscation or deprivation of our assets or suspension and/or termination of contracts based on force majeure events;	

•	risks inherent to shipyard rig construction, repair or enhancement, including risks associated with concentration of our construction contracts with three shipyards, unexpected delays in equipment delivery, engineering, design or commissioning issues following delivery, or changes in the commencement or completion dates;	

•	possible cancellation, suspension, renegotiation or termination (with or without cause) of drilling contracts as a result of economic conditions in the industry, mechanical difficulties, performance, or other reasons;	

•	the outcome of litigation, legal proceedings, investigations or other claims or contract disputes, including any inability to collect receivables or resolve significant contractual or day rate disputes, any renegotiation, nullification, cancellation or breach of contracts with customers or other parties and any failure to execute definitive contracts following announcements of letters of intent;	

1

		
•	governmental regulatory, legislative and permitting requirements affecting drilling operations, including limitations on drilling locations (such as the Gulf of Mexico during hurricane season);	

•	new and future regulatory, legislative or permitting requirements, future lease sales, changes in laws, rules and regulations that have or may impose increased financial responsibility, additional oil spill abatement contingency plan capability requirements and other governmental actions that may increase our costs of doing business, result in claims of force majeure or otherwise adversely affect our existing drilling contracts;	

•	our ability to attract and retain skilled personnel on commercially reasonable terms, whether due to labor regulations, unionization or otherwise;	

•	environmental or other liabilities, risks, damages or losses, whether related to storms or hurricanes (including wreckage or debris removal), collisions, groundings, blowouts, fires, explosions, other accidents or terrorism, for which insurance coverage and contractual indemnities may be insufficient, unenforceable or otherwise unavailable;	

•	our ability to obtain financing and pursue other business opportunities may be limited by our debt levels and debt agreement restrictions;	

•	our ability to realize expected benefits from the 2009 redomestication as a U.K. public limited company and the related reorganization of Ensco’s corporate structure, including the effect of any changes in laws, rules and regulations, or the interpretation thereof, or in the applicable facts, that could adversely affect our status as a non-U.S. corporation for U.S. tax purposes or otherwise adversely affect our anticipated consolidated effective income tax rate;	

•	delays in actual contract commencement dates or the cancellation of drilling programs by operators;	

•	adverse changes in foreign currency exchange rates, including their effect on the fair value measurement of our derivative instruments; and	

•	potential long-lived asset and/or goodwill impairments.	

In addition to the numerous risks, uncertainties and assumptions described above, you should also carefully read and consider "Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations" in Part I and "Item 1A. Risk Factors" in Part II of this report and "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 annual report on Form 10-K for the year ended December 31, 2014 , which is available on the U.S. Securities and Exchange Commission website at www.sec.gov. 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 .

2

PART I - FINANCIAL INFORMATION

Item 1. Financial Statements

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
 
The Board of Directors and Shareholders
Ensco plc:

We have reviewed the accompanying condensed consolidated balance sheet of Ensco plc and subsidiaries (the Company) as of September 30, 2015 , the related condensed consolidated statements of operations and comprehensive income (loss) for the three-month and nine-month periods ended September 30, 2015 and 2014 , and the related condensed consolidated statements of cash flows for the nine-month periods ended September 30, 2015 and 2014 . These condensed consolidated financial statements are the responsibility of the Company’s management.
We conducted our review in accordance with the standards of the Public Company Accounting Oversight Board (United States). A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the Public Company Accounting Oversight Board (United States), the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.
Based on our review, we are not aware of any material modifications that should be made to the condensed consolidated financial statements referred to above for them to be in conformity with U.S. generally accepted accounting principles.
We have previously audited, in accordance with standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheet of Ensco plc and subsidiaries as of December 31, 2014 , and the related consolidated statements of operations, comprehensive income (loss), and cash flows for the year then ended (not presented herein); and in our report dated March 2, 2015 , we expressed an unqualified opinion on those consolidated financial statements. In our opinion, the information set forth in the accompanying condensed consolidated balance sheet as of December 31, 2014 , is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.
 
/s/ KPMG LLP
 
Houston, Texas
October 29, 2015

3

ENSCO PLC AND SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(In millions, except per share amounts)
(Unaudited)

								
 	Three Months Ended
September 30,	
 	2015	 	2014	
OPERATING REVENUES	$	1,012.2		 	$	1,201.4		
OPERATING EXPENSES	 	 	 	
Contract drilling (exclusive of depreciation)	433.5		 	500.2		
Depreciation	145.2		 	135.2		
Loss on impairment	2.4		 	—		
General and administrative	28.4		 	29.3		
 	609.5		 	664.7		
OPERATING INCOME	402.7		 	536.7		
OTHER INCOME (EXPENSE)	 	 	 	
Interest income	1.0		 	3.1		
Interest expense, net	(55.3	)	 	(38.0	)	
Other, net	1.9		 	(3.5	)	
 	(52.4	)	 	(38.4	)	
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	350.3		 	498.3		
PROVISION FOR INCOME TAXES	 	 	 	
Current income tax expense	6.9		 	142.2		
Deferred income tax expense (benefit)	26.3		 	(67.6	)	
 	33.2		 	74.6		
INCOME FROM CONTINUING OPERATIONS	317.1		 	423.7		
(LOSS) INCOME FROM DISCONTINUED OPERATIONS, NET	(23.3	)	 	9.2		
NET INCOME	293.8		 	432.9		
NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	(1.8	)	 	(3.5	)	
NET INCOME ATTRIBUTABLE TO ENSCO	$	292.0		 	$	429.4		
EARNINGS (LOSS) PER SHARE - BASIC AND DILUTED	 	 	 	
Continuing operations	$	1.34		 	$	1.79		
Discontinued operations	(0.10	)	 	0.04		
 	$	1.24		 	$	1.83		
 	 	 	 	
NET INCOME ATTRIBUTABLE TO ENSCO SHARES - BASIC AND DILUTED	$	287.5		 	$	424.5		
 	 	 	 	
WEIGHTED-AVERAGE SHARES OUTSTANDING	 	 	 	
Basic	232.4		 	231.8		
Diluted	232.5		 	232.0		
 	 	 	 	
CASH DIVIDENDS PER SHARE	$	0.15		 	$	0.75		
The accompanying notes are an integral part of these condensed consolidated financial statements.

4

ENSCO PLC AND SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(In millions, except per share amounts)
(Unaudited)

								
 	Nine Months Ended
September 30,	
 	2015	 	2014	
OPERATING REVENUES	$	3,235.1		 	$	3,404.7		
OPERATING EXPENSES	 	 	 	
Contract drilling (exclusive of depreciation)	1,454.4		 	1,562.9		
Depreciation	422.8		 	398.5		
Loss on impairment	2.4		 	703.5		
General and administrative	88.2		 	103.6		
 	1,967.8		 	2,768.5		
OPERATING INCOME	1,267.3		 	636.2		
OTHER INCOME (EXPENSE)	 		 	 		
Interest income	6.8		 	10.2		
Interest expense, net	(158.9	)	 	(109.0	)	
Other, net	(28.3	)	 	.5		
 	(180.4	)	 	(98.3	)	
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	1,086.9		 	537.9		
PROVISION FOR INCOME TAXES	 	 	 	
Current income tax expense	113.5		 	244.6		
Deferred income tax expense (benefit)	55.4		 	(77.9	)	
 	168.9		 	166.7		
INCOME FROM CONTINUING OPERATIONS	918.0		 	371.2		
LOSS FROM DISCONTINUED OPERATIONS, NET	(33.6	)	 	(811.2	)	
NET INCOME (LOSS)	884.4		 	(440.0	)	
NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	(7.4	)	 	(10.8	)	
NET INCOME (LOSS) ATTRIBUTABLE TO ENSCO	$	877.0		 	$	(450.8	)	
EARNINGS (LOSS) PER SHARE - BASIC AND DILUTED	 	 	 	
Continuing operations	$	3.87		 	$	1.53		
Discontinued operations	(0.14	)	 	(3.50	)	
 	$	3.73		 	$	(1.97	)	
 	 	 	 	
NET INCOME (LOSS) ATTRIBUTABLE TO ENSCO SHARES - BASIC AND DILUTED	$	865.2		 	$	(456.7	)	
 	 		 	 		
WEIGHTED-AVERAGE SHARES OUTSTANDING	 	 	 	
Basic	232.2		 	231.5		
Diluted	232.2		 	231.7		
 	 	 	 	
CASH DIVIDENDS PER SHARE	$	0.45		 	$	2.25		
The accompanying notes are an integral part of these condensed consolidated financial statements.

5

ENSCO PLC AND SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
(In millions)
(Unaudited)

	
								
 	Three Months Ended
September 30,	
 	2015	 	2014	
 	 	 	 	
NET INCOME	$	293.8		 	$	432.9		
OTHER COMPREHENSIVE LOSS, NET	 	 	 	
Net change in fair value of derivatives	(14.8	)	 	(12.7	)	
Reclassification of net losses (gains) on derivative instruments from other comprehensive income into net income	5.8		 	(1.4	)	
Other	2.9		 	3.7		
NET OTHER COMPREHENSIVE LOSS	(6.1	)	 	(10.4	)	
 	 	 	 	
COMPREHENSIVE INCOME	287.7		 	422.5		
COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	(1.8	)	 	(3.5	)	
COMPREHENSIVE INCOME ATTRIBUTABLE TO ENSCO	$	285.9		 	$	419.0		

The accompanying notes are an integral part of these condensed consolidated financial statements.

6

ENSCO PLC AND SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
(In millions)
(Unaudited)

	
								
 	Nine Months Ended
September 30,	
 	2015	 	2014	
 	 	 	 	
NET INCOME (LOSS)	$	884.4		 	$	(440.0	)	
OTHER COMPREHENSIVE LOSS, NET	 	 	 	
Net change in fair value of derivatives	(23.5	)	 	(2.8	)	
Reclassification of net losses (gains) on derivative instruments from other comprehensive income into net income	15.9		 	(3.3	)	
Other	4.2		 	4.2		
NET OTHER COMPREHENSIVE LOSS	(3.4	)	 	(1.9	)	
 	 	 	 	
COMPREHENSIVE INCOME (LOSS)	881.0		 	(441.9	)	
COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	(7.4	)	 	(10.8	)	
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO ENSCO	$	873.6		 	$	(452.7	)	

The accompanying notes are an integral part of these condensed consolidated financial statements.

7

ENSCO PLC AND SUBSIDIARIES
CONDENSED CONSOLIDATED BALANCE SHEETS
(In millions, except share and par value amounts)

								
 	September 30,
2015	 	December 31,
2014	
 	(Unaudited)	 	 	
ASSETS	
CURRENT ASSETS	 	 	 	
    Cash and cash equivalents	$	240.4		 	$	664.8		
    Short-term investments	850.0		 	757.3		
    Accounts receivable, net	735.6		 	883.3		
    Other	586.6		 	629.4		
Total current assets	2,412.6		 	2,934.8		
PROPERTY AND EQUIPMENT, AT COST	16,389.2		 	14,975.5		
    Less accumulated depreciation	2,860.3		 	2,440.7		
       Property and equipment, net	13,528.9		 	12,534.8		
GOODWILL	276.1		 	276.1		
OTHER ASSETS, NET	223.2		 	314.2		
 	$	16,440.8		 	$	16,059.9		
LIABILITIES AND SHAREHOLDERS' EQUITY	
CURRENT LIABILITIES	 	 	 	
Accounts payable - trade	$	267.9		 	$	373.2		
Accrued liabilities and other	535.2		 	696.6		
Current maturities of long-term debt	—		 	34.8		
Total current liabilities	803.1		 	1,104.6		
LONG-TERM DEBT	5,903.3		 	5,885.6		
DEFERRED INCOME TAXES	208.0		 	179.5		
OTHER LIABILITIES	504.6		 	667.3		
COMMITMENTS AND CONTINGENCIES			 			
ENSCO SHAREHOLDERS' EQUITY	 		 	 		
Class A ordinary shares, U.S. $.10 par value, 450.0 million shares authorized, 243.1 and 240.7 million shares issued as of September 30, 2015 and December 31, 2014	24.3		 	24.1		
Class B ordinary shares, £1 par value, 50,000 shares authorized and issued as of September 30, 2015 and December 31, 2014	.1		 	.1		
Additional paid-in capital	5,549.0		 	5,517.5		
Retained earnings	3,492.6		 	2,720.4		
Accumulated other comprehensive income	8.5		 	11.9		
Treasury shares, at cost, 7.6 million and 6.5 million shares as of September 30, 2015 and December 31, 2014	(63.4	)	 	(59.0	)	
Total Ensco shareholders' equity	9,011.1		 	8,215.0		
NONCONTROLLING INTERESTS	10.7		 	7.9		
Total equity	9,021.8		 	8,222.9		
 	$	16,440.8		 	$	16,059.9		
     The accompanying notes are an integral part of these condensed consolidated financial statements.

8

ENSCO PLC AND SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(In millions)
(Unaudited)

								
 	Nine Months Ended
September 30,	
 	2015	 	2014	
OPERATING ACTIVITIES	 		 	 		
Net income (loss)	$	884.4		 	$	(440.0	)	
Adjustments to reconcile net income (loss) to net cash provided by operating activities of continuing operations:	 	 	 	
Depreciation expense	422.8		 	398.5		
Deferred income tax expense (benefit)	55.4		 	(77.9	)	
Share-based compensation expense	33.9		 	35.5		
Loss from discontinued operations, net	33.6		 	811.2		
Loss on extinguishment of debt	33.5		 	—		
Gain on disposal of assets	(19.3	)	 	(6.9	)	
Amortization of intangibles and other, net	2.7		 	(6.1	)	
Loss on impairment	2.4		 	703.5		
Other	4.4		 	(.9	)	
Changes in operating assets and liabilities	(179.2	)	 	95.8		
Net cash provided by operating activities of continuing operations	1,274.6		 	1,512.7		
INVESTING ACTIVITIES	 	 	 	
Additions to property and equipment	(1,445.8	)	 	(1,245.1	)	
Purchases of short-term investments	(850.0	)	 	(45.3	)	
Maturities of short-term investments	757.3		 	50.0		
Other 	1.4		 	9.8		
Net cash used in investing activities of continuing operations	(1,537.1	)	 	(1,230.6	)	
FINANCING ACTIVITIES	 	 	 	
Proceeds from issuance of senior notes	1,078.7		 	1,246.4		
Reduction of long-term borrowings	(1,072.5	)	 	(30.9	)	
Cash dividends paid	(105.9	)	 	(526.7	)	
Premium paid on redemption of debt	(30.3	)	 	—		
Debt financing costs	(10.5	)	 	(11.3	)	
Other	(8.4	)	 	(17.6	)	
Net cash (used in) provided by financing activities	(148.9	)	 	659.9		
DISCONTINUED OPERATIONS	 	 	 	
Operating activities	(12.7	)	 	10.6		
Investing activities	(.3	)	 	55.5		
Net cash (used in) provided by discontinued operations	(13.0	)	 	66.1		
(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(424.4	)	 	1,008.1		
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	664.8		 	165.6		
CASH AND CASH EQUIVALENTS, END OF PERIOD	$	240.4		 	$	1,173.7		

The accompanying notes are an integral part of these condensed consolidated financial statements.

9

ENSCO PLC AND SUBSIDIARIES
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)

Note 1 - Unaudited Condensed Consolidated Financial Statements
 
We prepared the accompanying condensed consolidated financial statements of Ensco plc and subsidiaries (the "Company," "Ensco," "our," "we" or "us") in accordance with accounting principles generally accepted in the United States of America ("GAAP"), pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC") included in the instructions to Form 10-Q and Article 10 of Regulation S-X. The financial information included in this report is unaudited but, in our opinion, includes all adjustments (consisting of normal recurring adjustments) that are necessary for a fair presentation of our financial position, results of operations and cash flows for the interim periods presented. The December 31, 2014 condensed consolidated balance sheet data were derived from our 2014 audited consolidated financial statements, but do not include all disclosures required by GAAP. Certain previously reported amounts have been reclassified to conform to the current year presentation. The preparation of our condensed consolidated financial statements requires management to make certain estimates, judgments and assumptions that affect the reported amounts of assets and liabilities, the related revenues and expenses and disclosures of gain and loss contingencies as of the date of the financial statements. Actual results could differ from those estimates.
 
The financial data for the three-month and nine-month periods ended September 30, 2015 and 2014 included herein have been subjected to a limited review by KPMG LLP, our independent registered public accounting firm. The accompanying independent registered public accounting firm's review report is not a report within the meaning of Sections 7 and 11 of the Securities Act of 1933, and the independent registered public accounting firm's liability under Section 11 does not extend to it.
 
Results of operations for the three-month and nine-month periods ended September 30, 2015 are not necessarily indicative of the results of operations that will be realized for the year ending December 31, 2015 . We recommend these condensed consolidated financial statements be read in conjunction with our annual report on Form 10-K for the year ended December 31, 2014 filed with the SEC on March 2, 2015 and our quarterly reports on Form 10-Q filed with the SEC on April 30, 2015 and July 30, 2015 .

Significant Accounting Policies - Operating Revenues and Expenses

We may receive termination fees if certain drilling contracts are terminated by the customer prior to the end of the contractual term. Such compensation is recognized as revenue in the period it is realized or realizable and earned, it can be reasonably measured, and collectability is reasonably assured.

During the three-month and nine-month periods ended September 30, 2015 , operating revenues included $110.6 million for the ENSCO DS-4 lump sum termination fee, which we collected in October, as well as $58.6 million related to the ENSCO DS-9 termination, which included an $18.4 million lump-sum for mobilization, capital upgrades and day rate revenue earned during initial acceptance testing. Under the terms of the ENSCO DS-9 contract, our customer is obligated to pay us monthly termination fees for a period of two years equal to the operating day rate, which may be partially defrayed should we re-contract the rig and/or mitigate certain costs.

Our significant accounting policies are included in Note 1 to our audited consolidated financial statements for the year ended December 31, 2014 included in our annual report on Form 10-K filed with the SEC on March 2, 2015 .

New Accounting Pronouncements

During 2015, the Financial Accounting Standards Board issued Accounting Standards Update 2015-03, Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs , as updated by Update 2015-15, Interest - Imputation of Interest (Subtopic 835-30 ): Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements - Amendments to SEC Paragraphs Pursuant to Staff

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Announcements at June 18, 2015 EITF Meeting , which require that debt issuance costs related to a recognized debt liability be presented on the balance sheet as a direct deduction from the carrying amount of the related debt liability, consistent with debt discounts. Debt issuance costs related to line-of-credit arrangements may be presented as an asset regardless of whether there are any outstanding borrowings on the arrangement. These updates are effective for annual and interim periods for fiscal years beginning after December 15, 2015. Early application is permitted. We will adopt these accounting standards on a retrospective basis effective January 1, 2016. There will be no impact to the manner in which debt issuance costs are amortized in our condensed consolidated financial statements.

During 2014, the Financial Accounting Standards Board issued Accounting Standards Update 2014-09, Revenue from Contracts with Customers (Topic 606) ("Update 2014-09"), which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. In July 2015, the Financial Accounting Standards Board voted to delay the effective date one year. The Update is now effective for annual and interim periods for fiscal years beginning after December 15, 2017, though companies have an option of adopting the standard for fiscal years beginning after December 15, 2016. The Update will replace most existing revenue recognition guidance in U.S. GAAP and may be adopted using a retrospective, modified retrospective or prospective with cumulative catch-up approach. We are currently evaluating the effect that Update 2014-09 will have on our condensed consolidated financial statements and related disclosures.
  
Note 2 - Fair Value Measurements
 
The following fair value hierarchy table categorizes information regarding our net financial assets measured at fair value on a recurring basis (in millions):

																
 	Quoted Prices in Active Markets for Identical Assets
(Level 1)	 	Significant Other Observable Inputs
(Level 2)	 	Significant Unobservable Inputs
(Level 3)	 	Total	
As of September 30, 2015	 	 	 		 	 		 	 		
Supplemental executive retirement plan assets 	$	42.8		 	$	—		 	$	—		 	$	42.8		
Total financial assets	42.8		 	—		 	—		 	42.8		
Derivatives, net 	—		 	(32.7	)	 	—		 	(32.7	)	
Total financial liabilities	$	—		 	$	(32.7	)	 	$	—		 	$	(32.7	)	
 	 	 	 	 	 	 	 	
As of December 31, 2014	 	 	 		 	 		 	 		
Supplemental executive retirement plan assets	$	43.2		 	$	—		 	$	—		 	$	43.2		
Total financial assets	43.2		 	—		 	—		 	43.2		
Derivatives, net 	—		 	(26.3	)	 	—		 	(26.3	)	
Total financial liabilities	$	—		 	$	(26.3	)	 	$	—		 	$	(26.3	)	

Supplemental Executive Retirement Plan Assets
 
Our supplemental executive retirement plans (the "SERP") are non-qualified plans that provide eligible employees an opportunity to defer a portion of their compensation for use after retirement. Assets held in the SERP were marketable securities measured at fair value on a recurring basis using Level 1 inputs and were included in other assets, net, on our condensed consolidated balance sheets. The fair value measurement of assets held in the SERP was based on quoted market prices.
 
Derivatives
 
Our derivatives were measured at fair value on a recurring basis using Level 2 inputs. See "Note 3 - Derivative Instruments" for additional information on our derivatives, including a description of our foreign currency hedging

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activities and related methodologies used to manage foreign currency exchange rate risk. The fair value measurement of our derivatives was based on market prices that are generally observable for similar assets or liabilities at commonly-quoted intervals.
 
Other Financial Instruments
 
The carrying values and estimated fair values of our long-term debt instruments were as follows (in millions):

																
 	September 30,
2015	 	December 31,
2014	
 	Carrying Value  	 	Estimated Fair Value  	 	Carrying Value  	 	Estimated Fair Value  	
4.70% Senior notes due 2021	$	1,482.0		 	$	1,254.7		 	$	1,479.9		 	$	1,505.3		
5.75% Senior notes due 2044	1,004.0		 	706.9		 	622.3		 	615.8		
6.875% Senior notes due 2020	995.4		 	886.5		 	1,008.2		 	1,008.5		
5.20% Senior notes due 2025	697.5		 	572.3		 	—		 	—		
4.50% Senior notes due 2024	624.2		 	487.5		 	624.2		 	602.0		
8.50% Senior notes due 2019	570.8		 	517.5		 	583.8		 	611.8		
7.875% Senior notes due 2040	380.2		 	253.0		 	381.2		 	363.8		
7.20% Debentures due 2027	149.2		 	136.7		 	149.2		 	171.4		
4.33% MARAD bonds, including current maturities, due 2016	—		 	—		 	46.6		 	46.8		
4.65% MARAD bonds, including current maturities, due 2020	—		 	—		 	27.0		 	29.7		
3.25% Senior notes due 2016	—		 	—		 	998.0		 	1,018.3		
Total	$	5,903.3		 	$	4,815.1		 	$	5,920.4		 	$	5,973.4		

The estimated fair values of our senior notes and debentures were determined using quoted market prices. The estimated fair values of our Maritime Administration ("MARAD") bonds were determined using an income approach valuation model.

The estimated fair values of our cash and cash equivalents, short-term investments, receivables, trade payables and other financial liabilities approximated their carrying values as of September 30, 2015 and December 31, 2014 .

Note 3 - Derivative Instruments
    
Our functional currency is the U.S. dollar. As is customary in the oil and gas industry, a majority of our revenues are denominated in U.S. dollars; however, a portion of the revenues earned and expenses incurred by certain of our subsidiaries are denominated in currencies other than the U.S. dollar ("foreign currencies"). These transactions are remeasured in U.S. dollars based on a combination of both current and historical exchange rates. We use foreign currency forward contracts to reduce our exposure to various market risks, primarily foreign currency exchange rate risk.
 
All derivatives were recorded on our condensed consolidated balance sheets at fair value. Derivatives subject to legally enforceable master netting agreements were not offset in our condensed consolidated balance sheets. Accounting for the gains and losses resulting from changes in the fair value of derivatives depends on the use of the derivative and whether it qualifies for hedge accounting.  Net liabilities of $32.7 million and $26.3 million associated with our foreign currency forward contracts were included on our condensed consolidated balance sheets as of September 30, 2015 and December 31, 2014 , respectively.  All of our derivatives mature during the next 18 months .  See "Note 2 - Fair Value Measurements" for additional information on the fair value measurement of our derivatives.

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Derivatives recorded at fair value on our condensed consolidated balance sheets consisted of the following (in millions):

																
 	Derivative Assets	 	Derivative Liabilities	
 	September 30,
2015	 	December 31,
2014	 	September 30,
2015	 	December 31,
2014	
Derivatives Designated as Hedging Instruments	 	 	 		 	 		 	 		
Foreign currency forward contracts - current (1)	$	.4		 	$	.4		 	$	28.9		 	$	17.2		
Foreign currency forward contracts - non-current (2)	.1		 	.1		 	2.9		 	2.9		
 	.5		 	.5		 	31.8		 	20.1		
 	 	 	 	 	 	 	 	
Derivatives Not Designated as Hedging Instruments	 	 	 		 	 		 	 		
Foreign currency forward contracts - current (1)	.4		 	.2		 	1.8		 	6.9		
 	.4		 	.2		 	1.8		 	6.9		
Total	$	.9		 	$	.7		 	$	33.6		 	$	27.0		

(1)  	Derivative assets and liabilities that have maturity dates equal to or less than twelve months from the respective balance sheet date were included in other current assets and accrued liabilities and other, respectively, on our condensed consolidated balance sheets.	

(2)  	Derivative assets and liabilities that have maturity dates greater than twelve months from the respective balance sheet date were included in other assets, net, and other liabilities, respectively, on our condensed consolidated balance sheets.	
 
We utilize cash flow hedges to hedge forecasted foreign currency denominated transactions, primarily to reduce our exposure to foreign currency exchange rate risk associated with contract drilling expenses and capital expenditures denominated in various currencies. As of September 30, 2015 , we had cash flow hedges outstanding to exchange an aggregate $329.9 million for various foreign currencies, including $158.4 million for British pounds, $72.7 million for Brazilian reais, $39.2 million for euros, $32.0 million for Australian dollars, $18.3 million for Singapore dollars, and $9.3 million for other currencies.

Gains and losses, net of tax, on derivatives designated as cash flow hedges included in our condensed consolidated statements of operations and comprehensive income (loss) were as follows (in millions):

Three Months Ended September 30, 2015 and 2014

																								
 	Loss Recognized in Other Comprehensive Income (Effective Portion)  	 	(Loss) Gain Reclassified from Accumulated Other Comprehensive Income ("AOCI") into Income (Effective Portion) (1)	 	Loss Recognized in Income on Derivatives (Ineffective Portion and Amount Excluded from Effectiveness Testing) (2)	
 	2015	 	2014	 	2015	 	2014	 	2015	 	2014	
Interest rate lock contracts (3)	$	—		 	$	—		 	$	(.1	)	 	$	—		 	$	—		 	$	—		
Foreign currency forward contracts (4)	(14.8	)	 	(12.7	)	 	(5.7	)	 	1.4		 	(.3	)	 	(1.9	)	
Total	$	(14.8	)	 	$	(12.7	)	 	$	(5.8	)	 	$	1.4		 	$	(.3	)	 	$	(1.9	)	

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Nine Months Ended September 30, 2015 and 2014

																								
 	Loss Recognized in Other Comprehensive Income (Effective Portion)  	 	(Loss) Gain Reclassified from AOCI into Income (Effective Portion) (1)	 	Loss Recognized in Income on Derivatives (Ineffective Portion and Amount Excluded from Effectiveness Testing) (2)	
 	2015	 	2014	 	2015	 	2014	 	2015	 	2014	
Interest rate lock contracts (3)	$	—		 	$	—		 	$	(.6	)	 	$	(.2	)	 	$	—		 	$	—		
Foreign currency forward contracts (5)	(23.5	)	 	(2.8	)	 	(15.3	)	 	3.5		 	(.1	)	 	—		
Total	$	(23.5	)	 	$	(2.8	)	 	$	(15.9	)	 	$	3.3		 	$	(.1	)	 	$	—		

(1)	Changes in the fair value of cash flow hedges are recorded in AOCI.  Amounts recorded in AOCI associated with cash flow hedges are subsequently reclassified into contract drilling, depreciation or interest expense as earnings are affected by the underlying hedged forecasted transaction.	

(2)	Losses recognized in income for ineffectiveness and amounts excluded from effectiveness testing were included in other, net, in our condensed consolidated statements of operations.	

(3)	Losses on interest rate lock derivatives reclassified from AOCI into income (effective portion) were included in interest expense, net in our condensed consolidated statements of operations.	

(4)  	During the three-month period ended September 30, 2015 , $5.9 million of losses were reclassified from AOCI into contract drilling expense and $200,000 of gains were reclassified from AOCI into depreciation expense in our condensed consolidated statement of operations. During the three-month period ended September 30, 2014 , $1.2 million of gains were reclassified from AOCI into contract drilling expense and $200,000 of gains were reclassified from AOCI into depreciation expense in our condensed consolidated statement of operations.	

(5)  	During the nine-month period ended September 30, 2015 , $15.9 million of losses were reclassified from AOCI into contract drilling expense and $600,000 of gains were reclassified from AOCI into depreciation expense in our condensed consolidated statement of operations. During the nine-month period ended September 30, 2014 , $2.9 million of gains were reclassified from AOCI into contract drilling expense and $600,000 of gains were reclassified from AOCI into depreciation expense in our condensed consolidated statement of operations.	

We have net assets and liabilities denominated in numerous foreign currencies and use various methods to manage our exposure to foreign currency exchange rate risk. We predominantly structure our drilling contracts in U.S. dollars, which significantly reduces the portion of our cash flows and assets denominated in foreign currencies. We occasionally enter into derivatives that hedge the fair value of recognized foreign currency denominated assets or liabilities but do not designate such derivatives as hedging instruments.  In these situations, a natural hedging relationship generally exists whereby changes in the fair value of the derivatives offset changes in the fair value of the underlying hedged items. As of September 30, 2015 , we held derivatives not designated as hedging instruments to exchange an aggregate $155.5 million for various foreign currencies, including $85.1 million for euros, $13.8 million for Swiss francs, $13.3 million for Mexican pesos, $11.8 million for British pounds, $9.5 million for Indonesian rupiah, and $22.0 million for other currencies.
     
Net losses of $4.2 million and $15.4 million associated with our derivatives not designated as hedging instruments were included in other, net, in our condensed consolidated statements of operations for the three-month periods ended September 30, 2015 and 2014 , respectively. Net losses of $13.2 million and $15.1 million associated with our derivatives not designated as hedging instruments were included in other, net in our condensed consolidated statements of operations for the nine-month periods ended September 30, 2015 and 2014 , respectively. These losses were largely offset by net foreign currency exchange gains and losses during the respective periods.

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As of September 30, 2015 , the estimated amount of net  losses associated with derivative instruments, net of tax, that would be reclassified into earnings during the next twelve months totaled $16.6 million .

Note 4 - Noncontrolling Interests

Third parties hold a noncontrolling ownership interest in certain of our non-U.S. subsidiaries. Noncontrolling interests are classified as equity on our condensed consolidated balance sheets, and net income attributable to noncontrolling interests is presented separately in our condensed consolidated statements of operations.
    
Income from continuing operations attributable to Ensco for the three-month and nine-month periods ended September 30, 2015 and 2014 was as follows (in millions):

																
 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
 	2015	 	2014	 	2015	 	2014	
Income from continuing operations	$	317.1		 	$	423.7		 	$	918.0		 	$	371.2		
Income from continuing operations attributable to noncontrolling interests	(1.7	)	 	(3.4	)	 	(7.3	)	 	(10.5	)	
Income from continuing operations attributable to Ensco	$	315.4		 	$	420.3		 	$	910.7		 	$	360.7		

(Loss) income from discontinued operations attributable to Ensco for the three-month and nine-month periods ended September 30, 2015 and 2014 was as follows (in millions):

	
																
 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
 	2015	 	2014	 	2015	 	2014	
(Loss) income from discontinued operations, net	$	(23.3	)	 	$	9.2		 	$	(33.6	)	 	$	(811.2	)	
Income from discontinued operations attributable to noncontrolling interests	(.1	)	 	(.1	)	 	(.1	)	 	(.3	)	
(Loss) income from discontinued operations attributable to Ensco	$	(23.4	)	 	$	9.1		 	$	(33.7	)	 	$	(811.5	)	

Note 5 - Earnings Per Share
 
We compute basic and diluted earnings per share ("EPS") in accordance with the two-class method. Net income (loss) attributable to Ensco used in our computations of basic and diluted EPS is adjusted to exclude net income allocated to non-vested shares granted to our employees and non-employee directors. Weighted-average shares outstanding used in our computation of diluted EPS is calculated using the treasury stock method and excludes non-vested shares.

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The following table is a reconciliation of income from continuing operations attributable to Ensco shares used in our basic and diluted EPS computations for the three-month and nine-month periods ended September 30, 2015 and 2014 (in millions):

																
 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
 	2015	 	2014	 	2015	 	2014	
Income from continuing operations attributable to Ensco	$	315.4		 	$	420.3		 	$	910.7		 	$	360.7		
Income from continuing operations allocated to non-vested share awards	(4.8	)	 	(4.8	)	 	(12.2	)	 	(5.9	)	
Income from continuing operations attributable to Ensco shares	$	310.6		 	$	415.5		 	$	898.5		 	$	354.8		
 
The following table is a reconciliation of the weighted-average shares used in our basic and diluted EPS computations for the three-month and nine-month periods ended September 30, 2015 and 2014 (in millions):

												
 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
 	2015	 	2014	 	2015	 	2014	
Weighted-average shares - basic	232.4		 	231.8		 	232.2		 	231.5		
Potentially dilutive shares	.1		 	.2		 	—		 	.2		
Weighted-average shares - diluted	232.5		 	232.0		 	232.2		 	231.7		
 
Antidilutive shares totaling 900,000 were excluded from the computation of diluted EPS for the three-month and nine-month periods ended September 30, 2015 . Antidilutive shares totaling 100,000 and 200,000 were excluded from the computation of diluted EPS for the three-month and nine-month periods ended September 30, 2014 .

Note 6 - Debt

Senior Notes

During the first quarter, we issued $700.0 million aggregate principal amount of unsecured 5.20% senior notes due 2025 (the “2025 Notes”) at a discount of $2.6 million and $400.0 million aggregate principal amount of unsecured 5.75% senior notes due 2044 (the “New 2044 Notes”) at a discount of $18.7 million in a public offering. Interest on the 2025 Notes is payable semiannually on March 15 and September 15 of each year commencing September 15, 2015. Interest on the New 2044 Notes is payable semiannually on April 1 and October 1 of each year commencing on April 1, 2015.

The 2025 Notes were issued pursuant to the Indenture between us and Deutsche Bank Trust Company Americas, as trustee (the “Trustee”), dated March 17, 2011 (the “Base Indenture”), as supplemented by the Third Supplemental Indenture between us and the Trustee, dated March 12, 2015 (the “Third Supplemental Indenture”).  The New 2044 Notes were issued as additional notes under the Base Indenture, as supplemented by the Second Supplemental Indenture between us and the Trustee, dated September 29, 2014 (the “Second Supplemental Indenture”), pursuant to which we previously issued $625.0 million aggregate principal amount of 5.75% senior notes due 2044 (the “Existing 2044 Notes”) in September 2014 (the Base Indenture, as amended and supplemented by the Second Supplemental Indenture and the Third Supplement Indenture, the “Indenture”).  The New 2044 Notes and Existing 2044 Notes are treated as a single series of debt securities under the Indenture (collectively, the “2044 Notes”).

We may redeem the 2025 Notes and 2044 Notes, in whole at any time or in part from time to time, prior to maturity. If we elect to redeem the 2025 Notes before the date that is three months prior to the maturity date or the 2044 Notes before the date that is six months prior to the maturity date, we will pay an amount equal to 100% of the principal amount of the notes redeemed plus accrued and unpaid interest and a “make-whole” premium. If we elect to

16

redeem the 2025 Notes or 2044 Notes on or after the aforementioned dates, we will pay an amount equal to 100% of the principal amount of the notes redeemed plus accrued and unpaid interest, but are not required to pay a "make-whole" premium.

The 2025 Notes, 2044 Notes and Indenture also contain customary events of default, including failure to pay principal or interest on the 2025 Notes or 2044 Notes when due, among others. The Indenture contains certain restrictions, including, among others, restrictions on our ability and the ability of our subsidiaries to create liens on certain assets, enter into certain sale-leaseback transactions, enter into certain merger or consolidation transactions or transfers of all or substantially all of our assets.

Redemption of 2016 Senior Notes and MARAD Obligations

During 2011, we issued $1.0 billion of 3.25% senior notes with a 2016 maturity (the “2016 Notes”). In March 2015, we commenced a cash tender offer (the “Tender Offer”) for the $1.0 billion outstanding aggregate principal amount of our 2016 Notes. Senior notes totaling $854.6 million were settled on March 12, 2015 for $878.0 million (excluding accrued interest) using a portion of the net proceeds from the 2025 Notes and New 2044 Notes public offering. Under the terms of the Tender Offer, we paid a premium totaling approximately $23.4 million , which approximates the “make-whole” premium that would have been required had we elected to redeem the debt. The premium was recorded as a loss on debt extinguishment and included in other, net in our condensed consolidated statement of operations for the nine-month period ended September 30, 2015 . Additionally, we wrote-off $1.7 million of unamortized debt discount and $1.5 million of unamortized debt issuance costs associated with the $854.6 million of notes tendered, resulting in a total pre-tax loss on debt extinguishment of $26.6 million for the nine-month period ended September 30, 2015 .

Concurrent with the settlement of the Tender Offer, we exercised our right to redeem the remaining 2016 Notes. In April 2015, we completed the redemption of the remaining $145.4 million of 2016 Notes using a portion of the net proceeds from the 2025 Notes and New 2044 Notes. The redemption payment included a "make-whole" premium of $3.8 million which was recorded as a loss on debt extinguishment and included in other, net in our condensed consolidated statement of operations for the nine-month period ended September 30, 2015 .

In April 2015, we used the remaining net proceeds from our March 2015 public offering, together with cash on hand, to redeem $51.0 million of our 4.33% MARAD notes due 2016 and our 4.65% MARAD bonds due 2020 (the “MARAD Obligations”). We incurred additional losses on debt extinguishment of $3.1 million , which were included in other, net in our condensed consolidated statement of operations for the nine-month period ended September 30, 2015 . These losses primarily consisted of a "make-whole" premium.

In July 2015, we redeemed the remaining $14.3 million aggregate principal amount of the MARAD Obligations.

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Revolving Credit
    
We have a $2.25 billion senior unsecured revolving credit facility with a syndicate of banks to be used for general corporate purposes with a term expiring on September 30, 2019 (the "Credit Facility"). Advances under the Credit Facility bear interest at Base Rate or LIBOR plus an applicable margin rate (currently 0.125% per annum for Base Rate advances and 1.125% per annum for LIBOR advances) depending on our credit ratings. Amounts repaid may be re-borrowed during the term of the Credit Facility. We are required to pay a quarterly commitment fee (currently 0.125% per annum) on the undrawn portion of the $2.25 billion commitment which is also based on our credit ratings.

In October 2015, Moody's downgraded our senior unsecured rating one notch to Baa2 from Baa1. The applicable margin rate for advances under our Credit Facility and the quarterly commitment fee percentage did not change as a result of this downgrade. A further reduction in our credit rating of one notch by Moody's or a reduction in our credit rating of one notch by Standard & Poor's would increase our applicable margin rate by 0.125% per annum and our quarterly commitment fee by 0.025% per annum under our Credit Facility.
    
In addition to other customary restrictive covenants, the Credit Facility requires us to maintain a total debt to total capitalization ratio that is less than or equal to a specified percentage. In March 2015, we amended the Credit Facility to increase the percentage from 50% to 60% .
    
We have the right, subject to receipt of commitments from new or existing lenders, to increase the commitments under the Credit Facility to an aggregate amount of up to $2.75 billion . We had no amounts outstanding under the Credit Facility as of September 30, 2015 and December 31, 2014 .

Note 7 - Impairment

Impairment of Long-Lived Assets

Fiscal Year 2015 - We continually assess our rig portfolio and actively work with our rig broker to market certain rigs that no longer meet our standards for economic returns or are not part of our long-term strategic plan. On a quarterly basis, we assess whether any rig meets the criteria established by Financial Accounting Standards Board ASC 360-10-45 for “held for sale” classification on our balance sheet. We measure the fair value of our assets held for sale by applying a market approach based on third-party estimated prices that would be received in exchange for the assets in an orderly transaction between market participants. We reassess the fair value of our held for sale assets on a quarterly basis and adjust the carrying value, as necessary.
    
During 2015, we adopted the Financial Accounting Standards Board’s Accounting Standards Update 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity ("Update 2014-08"). Under the new guidance, only disposals representing a strategic shift in operations should be presented as discontinued operations. As a result, individual assets that we classify as held for sale during 2015 are not reported as discontinued operations. Rigs that were classified as held for sale prior to 2015 continue to be reported as discontinued operations.

During the third quarter of 2015, management received approval from our Board of Directors to market for sale ENSCO 91, an older, less capable jackup rig that we cold stacked during the second quarter. We concluded that the rig met the held for sale criteria as of September 30, 2015, and its carrying value was written-down to fair value based on its estimated sales price. We recorded a pre-tax, non-cash loss on impairment totaling $2.4 million , which was included in income from continuing operations in our condensed consolidated statement of operations for the three-month and nine-month periods ended September 30, 2015.

In performing our quarterly assessment of the remaining held for sale rigs (ENSCO 5001, ENSCO 6000, ENSCO 7500, ENSCO DS-2, ENSCO 58 and ENSCO 90), we concluded that impairments were required as a result of declines in fair values observed during the third quarter. We recognized a pre-tax, non-cash loss on impairment of $25.6 million , which was included in (loss) income from discontinued operations, net in our condensed consolidated

18

statement of operations for the three-month and nine-month periods ended September 30, 2015. See “Note 9 - Discontinued Operations” for additional information on rigs classified as held for sale and presented in discontinued operations.

Our condensed consolidated balance sheet as of September 30, 2015 included seven held for sale rigs with an aggregate carrying value of $127.5 million . We believe the asset carrying values are supported by current market prices. If there is continued deterioration in the general business environment for offshore drilling rigs and/or further declines in the estimated sales price for drilling rigs, the estimated fair values of these assets will likely decline below their current carrying values, resulting in additional impairments.

On a quarterly basis, we evaluate the carrying value of our property and equipment to identify events or changes in circumstances ("triggering events") that indicate the carrying value may not be recoverable. If the global economy, our overall business outlook, or our expectations regarding the marketability of one or more of our drilling rigs deteriorates further, we may conclude that a triggering event has occurred and perform a recoverability test that could lead to a material impairment charge in future periods.

During 2015, customers exercised their termination rights for certain drilling contracts, and we agreed to amended contract terms in some cases. In each instance, we concluded that a triggering event had occurred and performed an asset impairment analysis. Based on the analysis performed, we concluded there were no impairments as the carrying values of these rigs were recoverable. We continue to have ongoing discussions with certain customers requesting contract concessions. The outcome of these negotiations remains uncertain; however, deterioration of existing contract terms and/or change in our long-term operating assumptions could lead to a material impairment charge in future periods.

Fiscal Year 2014 - During the second quarter of 2014, demand for floaters deteriorated as a result of continued reduction in capital spending by customers in addition to delays in customers’ drilling programs. The reduction in demand, combined with the increasing supply from newbuild floater deliveries, led to a very competitive market. In general, contracting activity for floaters declined significantly, and new day rate fixtures were substantially lower than rates previously realized. In response to the adverse change in the floaters business climate, management evaluated our older, less capable floaters and committed to a plan to sell five rigs. ENSCO 5000, ENSCO 5001, ENSCO 5002, ENSCO 6000 and ENSCO 7500 were removed from our portfolio of rigs marketed for contract drilling services and actively marketed for sale. These rigs were written down to fair value, less costs to sell, as of May 31, 2014 and classified as "held for sale." We completed the sale of ENSCO 5000 during the fourth quarter of 2014 and ENSCO 5002 during the second quarter of 2015. The remaining three floaters were classified as "held for sale" on our September 30, 2015 condensed consolidated balance sheet.

We measured the fair value of the "held for sale" rigs by applying a market approach, which was based on unobservable third-party estimated prices that would be received in exchange for the assets in an orderly transaction between market participants. We recorded a pre-tax, non-cash loss on impairment totaling $546.4 million during the nine-month period ended September 30, 2014 . The impairment charge was included in loss from discontinued operations, net in our condensed consolidated statement of operations for the nine-month period ended September 30, 2014 . See "Note 9 - Discontinued Operations" for additional information on our "held for sale" rigs.

As a result of the adverse change in the floater business climate observed during the second quarter of 2014, management's commitment to a plan to sell five floaters during the second quarter of 2014 and the impairment charge incurred on the "held for sale" floaters, management concluded that a triggering event had occurred during the second quarter of 2014 and performed an asset impairment analysis on our remaining older, less capable floaters.

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Based on the analysis performed as of May 31, 2014 , we recorded an additional non-cash loss on impairment with respect to four other floaters totaling $991.5 million , of which $288.0 million related to ENSCO DS-2 which was removed from our portfolio of rigs marketed for contract drilling services during the fourth quarter. As a result, the ENSCO DS-2 impairment charge was reclassified to loss from discontinued operations, net in our condensed consolidated statement of operations for the nine-month period ended September 30, 2014 . The remaining $703.5 million impairment charge was included in loss on impairment in our condensed consolidated statement of operations for the nine-month period ended September 30, 2014 . We measured the fair value of these rigs by applying an income approach, using projected discounted cash flows. These valuations were based on unobservable inputs that require significant judgments for which there is limited information, including assumptions regarding future day rates, utilization, operating costs and capital requirements.

Note 8 - Shareholders' Equity

Consistent with prior years' practice, during the nine-month period ended September 30, 2015 , we granted 2.0 million non-vested share awards to our employees, officers and non-employee directors for annual equity awards and for equity awards granted to new or recently promoted employees, pursuant to our 2012 Long-Term Incentive Plan. Grants of non-vested share awards generally vest at rates of 20% or 33% per year, as determined by a committee or subcommittee of the Board of Directors at the time of the grant. Our non-vested share awards have dividend rights effective on the date of grant and are measured at fair value using the market value of our shares on the date of grant. The weighted-average grant-date fair value of non-vested share awards granted during the nine-month period ended September 30, 2015 was $24.22 per share.

Note 9 - Discontinued Operations
    
During 2014, management committed to a plan to sell six floaters and two jackups. ENSCO 5000, ENSCO 5001, ENSCO 5002, ENSCO 6000, ENSCO 7500, ENSCO DS-2, ENSCO 58 and ENSCO 90 were removed from our portfolio of rigs marketed for contract drilling services. The operating results from these rigs were included in (loss) income from discontinued operations, net in our condensed consolidated statements of operations for the three-month and nine-month periods ended September 30, 2015 and 2014 .

On a quarterly basis, we reassess the fair values of our "held for sale" rigs to determine whether any adjustments to the carrying values are necessary. We recorded pre-tax, non-cash losses on impairment of $25.6 million and $32.8 million for the three-month and nine-month periods ended September 30, 2015, respectively, as a result of declines in the estimated fair values of several "held for sale" rigs. The loss on impairment is included in (loss) income from discontinued operations, net in our condensed consolidated statement of operations for the three-month and nine-month periods ended September 30, 2015. We measured the fair value of "held for sale" rigs by applying a market approach, which was based on an unobservable third-party estimated price that would be received in exchange for the assets in an orderly transaction between market participants.

During the nine-month period ended September 30, 2015, we sold ENSCO 5002 for net proceeds of $1.6 million . The proceeds from the sale were included in investing activities of discontinued operations in our condensed consolidated statement of cash flows for the nine-month period ended September 30, 2015 . We recognized a pre-tax gain of $1.6 million in connection with the disposal. The gain on sale was included in (loss) income from discontinued operations, net in our condensed consolidated statement of operations for the nine-month period ended September 30, 2015 .

During the fourth quarter of 2014, we completed the sale of ENSCO 5000 for net proceeds of $1.3 million . The remaining six rigs (ENSCO 5001, ENSCO 6000, ENSCO 7500, ENSCO DS-2, ENSCO 58 and ENSCO 90) are being actively marketed and were classified as "held for sale" on our September 30, 2015 condensed consolidated balance sheet.

20

During the three-month period ended September 30, 2014, we sold ENSCO 93, a jackup contracted to Petroleos Mexicanos (“Pemex”). In connection with the sale, we executed a charter agreement with the purchaser to continue operating the rig for the remainder of the Pemex contract, which ended in July 2015, less than one year from the date of sale. Our management services following the sale did not constitute significant ongoing involvement and therefore, the $1.2 million loss on sale was included in (loss) income from discontinued operations, net in our condensed consolidated statement of operations for the three-month and nine-month periods ended September 30, 2014. ENSCO 93 operating results were included in (loss) income from discontinued operations, net in our condensed consolidated statement of operations for the three-month and nine-month periods ended September 30, 2015 and 2014 . Net proceeds from the sale of $51.7 million were included in investing activities of discontinued operations in our consolidated statement of cash flows during the fourth quarter of 2014.

During the nine-month period ended September 30, 2014, we sold jackup rig ENSCO 85 for net proceeds of $64.4 million . The proceeds from the sale were included in investing activities of discontinued operations in our condensed consolidated statement of cash flows for the nine-month period ended September 30, 2014. We recognized a pre-tax gain of $10.3 million in connection with the disposal. The gain on sale and operating results were included in (loss) income from discontinued operations, net in our condensed consolidated statement of operations for the nine-month period ended September 30, 2014.

During the nine-month period ended September 30, 2014 , we sold ENSCO 69 and Pride Wisconsin for net proceeds of $32.2 million and recorded a pre-tax gain of $23.6 million . The gain on sale and operating results were included in (loss) income from discontinued operations, net in our condensed consolidated statement of operations for the nine-month period ended September 30, 2014 . The net proceeds from the sale were received in December 2013 and included in investing activities of discontinued operations in our condensed consolidated statement of cash flows for the year ended December 31, 2013.

The following table summarizes (loss) income from discontinued operations, net for the three-month and nine-month periods ended September 30, 2015 and 2014  (in millions):

																
 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
 	2015	 	2014	 	2015	 	2014	
Revenues	$	1.7		 	$	79.0		 	$	19.4		 	$	298.4		
Operating expenses	5.6		 	72.4		 	38.8		 	324.0		
Operating (loss) income	(3.9	)		6.6		 	(19.4	)	 	(25.6	)	
Income tax (expense) benefit	(2.1	)	 	(11.7	)	 	7.1		 	(23.2	)	
Loss on impairment, net	(17.3	)	 	—		 	(24.5	)	 	(796.8	)	
Gain on disposal of discontinued operations, net	—		 	14.3		 	3.2		 	34.4		
(Loss) income from discontinued operations, net	$	(23.3	)	 	$	9.2		 	$	(33.6	)	 	$	(811.2	)	

Income tax benefit from discontinued operations for the nine-month period ended September 30, 2015 included $11.9 million of discrete tax benefits. 

Debt and interest expense are not allocated to our discontinued operations.
    
Note 10 - Income Taxes
 
Our consolidated effective income tax rate for the three-month and nine-month periods ended September 30, 2015 was 9.5% and 15.5% , respectively. Excluding the impact of discrete income tax items for the three-month and nine-month periods ended September 30, 2015 , our consolidated effective income tax rate was 12.6% and 16.4% , respectively. These discrete tax items were primarily attributable to the early termination of the ENSCO DS-4 drilling contract and the recognition of liabilities for unrecognized tax benefits associated with tax positions taken in prior years.

Excluding the impact of the discrete income tax items, our consolidated effective income tax rate for the three-month period ended September 30, 2014 was 13.9% . Excluding the impact of the $703.5 million loss on impairment and discrete income tax expense, our consolidated effective income tax rate for the nine-month period ended September 30, 2014 was 11.8% .

The change in our effective tax rate for the three-month and nine-month periods is primarily attributable to the change in the estimated relative components of our earnings, excluding discrete items, generated in tax jurisdictions with higher tax rates and tax legislation enacted by the U.K. government that became effective on April 1,2014.

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Note 11 - Contingencies

Brazil Internal Investigation

Pride International, Inc. (“Pride”), a company we acquired in 2011, commenced drilling operations in Brazil during 2001 and, in 2008, entered into a drilling contract with Petrobras for DS-5, a rig Pride had ordered from a shipyard in South Korea.

Beginning in 2006, Pride conducted periodic compliance reviews of its business with Petrobras, and, after the acquisition, Ensco conducted similar compliance reviews, the most recent of which commenced in early 2015 after media reports were released regarding ongoing investigations of various kickback and bribery schemes in Brazil involving Petrobras.

While conducting our compliance review, we became aware of an internal audit report by Petrobras alleging irregularities in relation to DS-5 - specifically, that Petrobras overpaid under the drilling contract. We believe this allegation is inaccurate, as publicly available data show that the contract’s compensation terms were in line with other contracts signed by Petrobras and other customers with our competitors during the same timeframe (late 2007 and early 2008). We provided this information to Petrobras in June 2015. We continue to operate DS-5 under its existing contract. In addition, all our other rigs contracted to Petrobras - ENSCO 6001, 6002, 6003 and 6004 - continue to work under their contracts.

Upon learning of the Petrobras internal audit report, our Audit Committee appointed independent counsel to lead an investigation into the alleged irregularities. Subsequently, the internal audit report and the alleged irregularities were referenced in Brazilian court documents connected to the prosecution of former Petrobras directors and employees as well as certain other third parties, including a former marketing consultant who provided services to Pride in connection with DS-5. The former marketing consultant entered into a plea agreement with the Brazil authorities. This plea agreement was referenced in a Brazilian court proceeding relating to a project for a competitor having no connection to us. This court proceeding document states that another court action would be made public in due course with respect to DS-5; to date no further proceedings relating to DS-5 have been released.

Independent counsel, under the direction of our Audit Committee, has substantially completed the investigation of these allegations by reviewing and analyzing available documents and correspondence and interviewing current and former employees involved in the contracting of DS-5 as well as the former marketing consultant. To date, our Audit Committee has found no evidence that Pride or Ensco or any of their current or former employees were aware of or involved in any wrongdoing, and our Audit Committee has found no evidence linking Ensco or Pride to any illegal acts committed by our former marketing consultant. Although the investigation is substantially complete, we cannot predict whether any new or additional allegations will be made and what impact those allegations will have on the timing or conclusions of the investigation. Our Audit Committee will examine any new or additional allegations and the facts and circumstances surrounding them.

To date, we have not been contacted by Brazil authorities, and no authority has alleged wrongdoing by Pride or Ensco or any of their current or former employees. In June and July 2015, we voluntarily contacted the SEC and the U.S. Department of Justice (“DOJ”), respectively, to advise them of this matter and our Audit Committee’s independent investigation, and we provided them an update on the investigation in September 2015. We cannot predict whether any governmental authority will seek to investigate this matter, or if a proceeding were opened, the scope or ultimate outcome of any such investigation. If the SEC or DOJ determines that violations of the U.S. Foreign Corrupt Practices Act of 1977 (the "FCPA") have occurred, or if any governmental authority determines that we have violated applicable anti-bribery laws, they could seek civil and criminal sanctions, including monetary penalties, against us, as well as changes to our business practices and compliance programs, any of which could have a material adverse effect on our business and financial condition.

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ENSCO 74 Loss

During 2008, ENSCO 74 was lost as a result of Hurricane Ike in the U.S. Gulf of Mexico.  The ENSCO 74 sunken rig hull was located approximately 95 miles from the original drilling location when it was struck by an oil tanker during 2009.  We filed a petition for exoneration or limitation of liability under U.S. admiralty and maritime law during 2009. Wreck removal operations on the sunken rig hull of ENSCO 74 were completed during 2010.

The owner of the oil tanker that struck the hull of ENSCO 74 filed claims seeking monetary damages in excess of  $5.0 million  for losses incurred when the tanker struck the ENSCO 74 hull. This matter went to trial in June 2014, and we won a directed verdict on all claims. During the third quarter of 2015, the United States Court of Appeals for the Fifth Circuit affirmed the trial court's directed verdict. The deadline for further appeals has now passed, thereby closing this matter.

ENSCO 29 Wreck Removal

During 2005, a portion of the ENSCO 29 platform drilling rig was lost over the side of a customer's platform as a result of Hurricane Katrina. During 2014, we received a letter from an operator demanding that Ensco retrieve the derrick and drawworks from the seabed.
Our property insurance policies include coverage for ENSCO 29 wreckage and debris removal costs up to $3.8 million . We also maintain liability insurance policies that provide coverage under certain circumstances for wreckage and debris removal costs in excess of the $3.8 million coverage provided under the property insurance policies. We believe that it is not probable a liability exists with respect to this matter, and no liability has been recorded on our condensed consolidated balance sheet as of September 30, 2015 . While we cannot reasonably estimate a range of possible loss at this time, it is possible that removal costs may be in excess of our insurance coverage. Although we do not expect costs associated with the ENSCO 29 wreck removal to have a material adverse effect upon our financial position, operating results or cash flows, there can be no assurances as to the ultimate outcome.

Asbestos Litigation

We and certain subsidiaries have been named as defendants, along with numerous third-party companies as co-defendants, in multi-party lawsuits filed in Mississippi and Louisiana by approximately  60  plaintiffs. The lawsuits seek an unspecified amount of monetary damages on behalf of individuals alleging personal injury or death, primarily under the Jones Act, purportedly resulting from exposure to asbestos on drilling rigs and associated facilities during the 1960s through the 1980s.
    
During 2013, we reached an agreement in principle with  58  plaintiffs to settle lawsuits filed in Mississippi for a nominal amount. A special master reviewed all  58  cases and made an allocation of settlement funds among the parties.  The District Court Judge reviewed the allocations and accepted the special master’s recommendations and approved the settlements.  The settlement documents for most of the individual plaintiffs have been processed and the cases have been dismissed. The settlement documents for approximately 18 individual plaintiffs are continuing to be processed.

We intend to vigorously defend against the remaining claims and have filed responsive pleadings preserving all defenses and challenges to jurisdiction and venue. However, discovery is still ongoing and, therefore, available information regarding the nature of all pending claims is limited. At present, we cannot reasonably determine how many of the claimants may have valid claims under the Jones Act or estimate a range of potential liability exposure, if any. 
    
In addition to the pending cases in Mississippi and Louisiana, we have other asbestos or lung injury claims pending against us in litigation from time to time in other jurisdictions. Although we do not expect final disposition of these asbestos or lung injury lawsuits to have a material adverse effect upon our financial position, operating results or cash flows, there can be no assurances as to the ultimate outcome of the lawsuits.

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   Other Matters

In addition to the foregoing, we are named defendants or parties in certain other lawsuits, claims or proceedings incidental to our business and are involved from time to time as parties to governmental investigations or proceedings, including matters related to taxation, arising in the ordinary course of business. Although the outcome of such lawsuits or other proceedings cannot be predicted with certainty and the amount of any liability that could arise with respect to such lawsuits or other proceedings cannot be predicted accurately, we do not expect these matters to have a material adverse effect on our financial position, operating results or cash flows.

In the ordinary course of business with customers and others, we have entered into letters of credit and surety bonds to guarantee our performance as it relates to our drilling contracts, contract bidding, customs duties, tax appeals and other obligations in various jurisdictions. Letters of credit and surety bonds outstanding as of September 30, 2015 totaled $95.8 million and were issued under facilities provided by various banks and other financial institutions. Obligations under these letters of credit and surety bonds are not normally called as we typically comply with the underlying performance requirement. As of September 30, 2015 , we had not been required to make collateral deposits with respect to these agreements.

Note 12 - Sale-leaseback

During the third quarter of 2014, we sold jackup rigs ENSCO 83, ENSCO 89, ENSCO 93 and ENSCO 98, all of which were contracted to Pemex. In connection with this sale, we executed charter agreements with the purchaser to continue operating the rigs for the remainder of the Pemex contracts, which had anticipated completion dates in either 2015 or 2016. We accounted for the transaction as a sale-leaseback, whereby we retain a significant portion of the remaining use of the rigs as a result of the charter agreements.

We recorded an aggregate gain on sale of $7.5 million at the time of disposal, which represented the portion of the gain that exceeded the present value of payments due under the charter agreements. The remaining $29.4 million gain was deferred and amortized to contract drilling expense within the Jackup segment over the remaining charter term of each rig. Of the $29.4 million deferred gain, $5.7 million and $19.7 million were recognized in contract drilling expense in our condensed consolidated statements of operations for the three-month and nine-month periods ended September 30, 2015 , and $2.7 million was included in accrued liabilities and other on our condensed consolidated balance sheet as of September 30, 2015 .

Due to our long-term charter agreements with the purchaser, ENSCO 83, ENSCO 89 and ENSCO 98 operating results for periods beginning after the date of sale (September 30, 2014) were included in income from continuing operations within the Other segment. Operating results for these rigs prior to September 30, 2014 were included in income from continuing operations within the Jackup segment.
    
The ENSCO 93 contract with Pemex ended in July 2015, less than one year from the date of sale. Therefore, our rig management operations following the sale did not constitute significant ongoing involvement. As a result, ENSCO 93 operating results were included in (loss) income from discontinued operations, net in our condensed consolidated statements of operations for the three-month and nine-month periods ended September 30, 2015 and 2014 . See "Note 9 - Discontinued Operations" for additional information.
  
Note 13 - Segment Information
 
Our business consists of three operating segments: (1) Floaters, which includes our drillships and semisubmersible rigs, (2) Jackups and (3) Other, which consists of management services on rigs owned by third-parties. Our two reportable segments, Floaters and Jackups, provide one service, contract drilling.
    
Segment information for the three-month and nine-month periods ended 2015 and 2014 is presented below (in millions). General and administrative expense and depreciation expense incurred by our corporate office are not allocated to our operating segments for purposes of measuring segment operating income and were included in "Reconciling Items." We measure segment assets as property and equipment. Prior year information has been reclassified to conform to the current year presentation.

Three Months Ended September 30, 2015

																								
 	Floaters	 	Jackups	 	Other	 	Operating Segments Total	 	Reconciling Items	 	Consolidated Total	
Revenues	$	646.4		 	$	325.8		 	$	40.0		 	$	1,012.2		 	$	—		 	$	1,012.2		
Operating expenses	 	 	 	 	 	 	 	 	 	 	 	
Contract drilling (exclusive of depreciation)	242.4		 	160.0		 	31.1		 	433.5		 	—		 	433.5		
Depreciation	95.7		 	44.8		 	—		 	140.5		 	4.7		 	145.2		
Loss on impairment	—		 	2.4		 	—		 	2.4		 	—		 	2.4		
General and administrative	—		 	—		 	—		 	—		 	28.4		 	28.4		
Operating income (loss)	$	308.3		 	$	118.6		 	$	8.9		 	$	435.8		 	$	(33.1	)	 	$	402.7		
Property and equipment, net	$	10,260.5		 	$	3,194.6		 	$	—		 	$	13,455.1		 	$	73.8		 	$	13,528.9		

Three Months Ended September 30, 2014

																								
 	Floaters	 	Jackups	 	Other	 	Operating Segments Total	 	Reconciling Items	 	Consolidated Total	
Revenues	$	703.5		 	$	481.0		 	$	16.9		 	$	1,201.4		 	$	—		 	$	1,201.4		
Operating expenses	 	 	 	 	 	 	 	 	 	 	 	
Contract drilling (exclusive of depreciation)	291.3		 	197.9		 	11.0		 	500.2		 	—		 	500.2		
Depreciation	87.9		 	45.3		 	—		 	133.2		 	2.0		 	135.2		
General and administrative	—		 	—		 	—		 	—		 	29.3		 	29.3		
Operating income (loss)	$	324.3		 	$	237.8		 	$	5.9		 	$	568.0		 	$	(31.3	)	 	$	536.7		
Property and equipment, net	$	9,836.2		 	$	3,215.3		 	$	—		 	$	13,051.5		 	$	76.1		 	$	13,127.6		

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Nine Months Ended September 30, 2015

																								
 	Floaters	 	Jackups	 	Other	 	Operating Segments Total	 	Reconciling Items	 	Consolidated Total	
Revenues	$	1,975.7		 	$	1,138.2		 	$	121.2		 	$	3,235.1		 	$	—		 	$	3,235.1		
Operating expenses	 	 	 	 	 	 	 	 	 	 	 	
Contract drilling (exclusive of depreciation)	813.6		 	544.2		 	96.6		 	1,454.4		 	—		 	1,454.4		
Depreciation	283.1		 	129.9		 	—		 	413.0		 	9.8		 	422.8		
Loss on impairment	—		 	2.4		 	—		 	2.4		 	—		 	2.4		
General and administrative			 			 	—		 	—		 	88.2		 	88.2		
Operating income (loss)	$	879.0		 	$	461.7		 	$	24.6		 	$	1,365.3		 	$	(98.0	)	 	$	1,267.3		
Property and equipment, net	$	10,260.5		 	$	3,194.6		 	$	—		 	$	13,455.1		 	$	73.8		 	$	13,528.9		

Nine Months Ended September 30, 2014

																								
 	Floaters	 	Jackups	 	Other	 	Operating Segments Total	 	Reconciling Items	 	Consolidated Total	
Revenues	$	2,034.6		 	$	1,320.1		 	$	50.0		 	$	3,404.7		 	$	—		 	$	3,404.7		
Operating expenses	 	 	 	 	 	 	 	 	 	 	 	
Contract drilling (exclusive of depreciation)	907.8		 	621.1		 	34.0		 	1,562.9		 	—		 	1,562.9		
Depreciation	266.9		 	125.6		 	—		 	392.5		 	6.0		 	398.5		
Loss on impairment	703.5		 	—		 	—		 	703.5		 	—		 	703.5		
General and administrative	—		 	—		 	—		 	—		 	103.6		 	103.6		
Operating income (loss)	$	156.4		 	$	573.4		 	$	16.0		 	$	745.8		 	$	(109.6	)	 	$	636.2		
Property and equipment, net	$	9,836.2		 	$	3,215.3		 	$	—		 	$	13,051.5		 	$	76.1		 	$	13,127.6		

Information about Geographic Areas     

As of September 30, 2015 , the geographic distribution of our drilling rigs by reportable segment was as follows:

						
 	Floaters	 	Jackups	 	Total (1)	
North & South America (excluding Brazil)	9	 	7	 	16	
Middle East & Africa	3	 	11	 	14	
Europe & Mediterranean	2	 	11	 	13	
Asia & Pacific Rim	4	 	7	 	11	
Brazil	4	 	—	 	4	
Asia & Pacific Rim (under construction)	1	 	1	 	2	
Middle East & Africa (under construction)	—	 	2	 	2	
Held for sale	4	 	3	 	7	
Total	27	 	42	 	69	

(1)  	We provide management services on five rigs owned by third-parties not included in the table above.	

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Note 14 - Supplemental Financial Information

Consolidated Balance Sheet Information

Accounts receivable, net, consisted of the following (in millions):

								
 	September 30,
2015	 	December 31,
2014	
Trade	$	730.6		 	$	878.8		
Other	14.4		 	15.9		
 	745.0		 	894.7		
Allowance for doubtful accounts	(9.4	)	 	(11.4	)	
 	$	735.6		 	$	883.3		

Other current assets consisted of the following (in millions):

								
 	September 30,
2015	 	December 31,
2014	
Inventory	$	256.4		 	$	240.3		
Assets held for sale	127.5		 	152.4		
Prepaid taxes	70.7		 	90.6		
Deferred costs	54.8		 	61.9		
Deferred tax assets	33.9		 	43.8		
Prepaid expenses	30.0		 	33.8		
Other	13.3		 	6.6		
 	$	586.6		 	$	629.4		

Other assets, net consisted of the following (in millions):

								
 	September 30,
2015	 	December 31,
2014	
Deferred costs	$	86.5		 	$	82.3		
Supplemental executive retirement plan assets	42.8		 	43.2		
Prepaid taxes on intercompany transfers of property	37.7		 	39.7		
Deferred tax assets	36.2		 	38.4		
Intangible assets	8.5		 	49.0		
Unbilled receivables	1.7		 	18.6		
Warranty and other claim receivables	—		 	30.6		
Other	9.8		 	12.4		
 	$	223.2		 	$	314.2		

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Accrued liabilities and other consisted of the following (in millions):

								
 	September 30,
2015	 	December 31,
2014	
Deferred revenue	$	198.0		 	$	241.3		
Personnel costs	158.6		 	214.0		
Accrued interest	75.4		 	83.8		
Taxes	60.8		 	97.0		
Derivative liabilities	30.7		 	24.1		
Other	11.7		 	36.4		
 	$	535.2		 	$	696.6		
        
Other liabilities consisted of the following (in millions):

								
 	September 30,
2015	 	December 31,
2014	
Deferred revenue	$	240.6		 	$	373.2		
Unrecognized tax benefits (inclusive of interest and penalties)	151.6		 	142.4		
Supplemental executive retirement plan liabilities	43.9		 	45.1		
Intangible liabilities	16.9		 	40.7		
Personnel costs	16.2		 	26.1		
Other	35.4		 	39.8		
 	$	504.6		 	$	667.3		
    
Accumulated other comprehensive income consisted of the following (in millions):

								
 	September 30,
2015	 	December 31,
2014	
Cumulative Translation Adjustment	$	10.2		 	$	5.1		
Derivative Instruments	.4		 	8.0		
Other	(2.1	)	 	(1.2	)	
 	$	8.5		 	$	11.9		

The increase in the cumulative translation adjustment is due to changes in the Brazilian reai exchange rate relative to the U.S. dollar during the nine-month period ended September 30, 2015.

Concentration of Risk

We are exposed to credit risk relating to our receivables from customers, our cash and cash equivalents, our short-term investments and our use of derivatives in connection with the management of foreign currency exchange rate risk. We mitigate our credit risk relating to receivables from customers, which consist primarily of major international, government-owned and independent oil and gas companies, by performing ongoing credit evaluations. We also maintain reserves for potential credit losses, which generally have been within management's expectations. We mitigate our credit risk relating to cash and cash equivalents and short-term investments by focusing on diversification and quality of instruments. Cash equivalents and short-term investments consist of a portfolio of high-grade instruments. Custody of cash and cash equivalents and short-term investments is maintained at several well-capitalized financial institutions, and we monitor the financial condition of those financial institutions.  

We mitigate our credit risk relating to derivative counterparties through a variety of techniques, including transacting with multiple, high-quality financial institutions, thereby limiting our exposure to individual counterparties

27

and by entering into International Swaps and Derivatives Association, Inc. (“ISDA”) Master Agreements, which include provisions for a legally enforceable master netting agreement, with almost all of our derivative counterparties. The terms of the ISDA agreements may also include credit support requirements, cross default provisions, termination events or set-off provisions.  Legally enforceable master netting agreements reduce credit risk by providing protection in bankruptcy in certain circumstances and generally permitting the closeout and netting of transactions with the same counterparty upon the occurrence of certain events.  See "Note 3 - Derivative Instruments" for additional information on our derivatives.

Consolidated revenues by customer for the three-month and nine-month periods ended September 30, 2015 and 2014 were as follows:

	
												
 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
 	2015	 	2014	 	2015	 	2014	
BP (1)	27	%	 	15	%	 	18	%	 	16	%	
Petrobras (2)	16	%	 	10	%	 	14	%	 	10	%	
Total (2)	6	%	 	8	%	 	8	%	 	10	%	
Anadarko (2)	1	%	 	8	%	 	4	%	 	10	%	
Other	50	%	 	59	%	 	56	%	 	54	%	
 	100	%	 	100	%	 	100	%	 	100	%	

(1)  	During the three-month periods ended September 30, 2015 and 2014 , 86% and 79% of the revenues provided by BP, respectively, were attributable to our Floaters segment. During the nine-month periods ended September 30, 2015 and 2014 , 84% and 80% of the revenues provided by BP, respectively, were attributable to our Floaters segment.	

During the three-month and nine-month periods ended September 30, 2015 , revenues provided by BP included $110.6 million for the ENSCO DS-4 lump sum termination fee.

(2)  	During the three-month and nine-month periods ended September 30, 2015 and 2014 , all revenues were provided by our Floaters segment.	

Consolidated revenues by region for the three-month and nine-month periods ended September 30, 2015 and 2014 were as follows:

	
																
 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
 	2015	 	2014	 	2015	 	2014	
U.S. Gulf of Mexico (1)	$	363.0		 	$	447.1		 	$	972.8		 	$	1,320.6		
Angola (2)	136.6		 	150.1		 	488.3		 	458.5		
Brazil (3)	112.9		 	115.8		 	351.3		 	361.5		
United Kingdom (4)	91.5		 	117.8		 	316.4		 	268.7		
Other	308.2		 	370.6		 	1,106.3		 	995.4		
 	$	1,012.2		 	$	1,201.4		 	$	3,235.1		 	$	3,404.7		

(1)  	During the three-month periods ended September 30, 2015 and 2014 , 90% and 80% of the revenues earned in the U.S. Gulf of Mexico, respectively, were attributable to our Floaters segment. During the nine-month periods ended September 30, 2015 and 2014 , 86% and 78% of the revenues earned in the U.S. Gulf of Mexico, respectively, were attributable to our Floaters segment.	

28

		
(2)  	During the three-month periods ended September 30, 2015 and 2014 , 87% and 100% of the revenues earned in Angola, respectively, were attributable to our Floaters segment. During the nine-month periods ended September 30, 2015 and 2014 , 90% and 100% of the revenues earned in Angola, respectively, were attributable to our Floaters segment.	

(3)  	During the three-month and nine-month periods ended September 30, 2015 and 2014 , all revenues were provided by our Floaters segment.	

(4)  	During the three-month and nine-month periods ended September 30, 2015 and 2014 , all revenues were provided by our Jackups segment.	
    
Note 15 - Guarantee of Registered Securities

During 2011, Ensco plc completed a merger transaction (the "Merger") with Pride. In connection with the Merger, Ensco plc and Pride entered into a supplemental indenture to the indenture dated as of July 1, 2004 between Pride and the Bank of New York Mellon, as indenture trustee, providing for, among other matters, the full and unconditional guarantee by Ensco plc of Pride’s 8.5% unsecured senior notes due 2019 , 6.875% unsecured senior notes due 2020 and 7.875% unsecured senior notes due 2040 , which had an aggregate outstanding principal balance of $1.7 billion as of September 30, 2015 . The Ensco plc guarantee provides for the unconditional and irrevocable guarantee of the prompt payment, when due, of any amount owed to the holders of the notes.
 
Ensco plc is also a full and unconditional guarantor of the 7.2% debentures due 2027 issued by ENSCO International Incorporated during 1997, which had an aggregate outstanding principal balance of $150.0 million as of September 30, 2015 .
    
All guarantees are unsecured obligations of Ensco plc ranking equal in right of payment with all of its existing and future unsecured and unsubordinated indebtedness.
   
The following tables present the unaudited condensed consolidating statements of operations for the three-month and nine-month periods ended September 30, 2015 and 2014 ; the unaudited condensed consolidating statements of comprehensive income (loss) for the three-month and nine-month periods ended September 30, 2015 and 2014 ; the condensed consolidating balance sheets as of September 30, 2015 (unaudited) and December 31, 2014 ; and the unaudited condensed consolidating statements of cash flows for the nine-month periods ended September 30, 2015 and 2014 , in accordance with Rule 3-10 of Regulation S-X.

29

ENSCO PLC AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS
Three Months Ended September 30, 2015
(in millions)
(Unaudited)

 	Ensco plc	 	ENSCO International Incorporated	 	Pride International, Inc.	 	Other Non-Guarantor Subsidiaries of Ensco	 	Consolidating Adjustments	 	Total	
OPERATING REVENUES	$	9.8		 	$	34.8		 	$	—		 	$	1,039.4		 	$	(71.8	)	 	$	1,012.2		
OPERATING EXPENSES	 	 	 	 	 	 	 	 	 	 	 	
Contract drilling (exclusive of depreciation)	7.3		 	34.8		 	—		 	463.2		 	(71.8	)	 	433.5		
Depreciation	—		 	4.3		 	—		 	140.9		 	—		 	145.2		
Loss on impairment	—		 	—		 	—		 	2.4		 	—		 	2.4		
General and administrative	11.8		 	.1		 	—		 	16.5		 	—		 	28.4		
OPERATING (LOSS) INCOME	(9.3	)	 	(4.4	)		—			416.4			—			402.7		
OTHER (EXPENSE) INCOME, NET	(37.1	)	 	(7.2	)	 	(15.7	)	 	7.6		 	—		 	(52.4	)	
(LOSS) INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	(46.4	)	 	(11.6	)		(15.7	)		424.0			—			350.3		
INCOME TAX PROVISION	—		 	.9		 	—		 	32.3		 	—		 	33.2		
DISCONTINUED OPERATIONS, NET	—		 	—		 	—		 	(23.3	)	 	—		 	(23.3	)	
EQUITY EARNINGS IN AFFILIATES, NET OF TAX	338.4		 	111.2		 	14.6		 	—		 	(464.2	)	 	—		
NET INCOME (LOSS)	292.0			98.7			(1.1	)		368.4			(464.2	)		293.8		
NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	—		 	—		 	—		 	(1.8	)	 	—		 	(1.8	)	
NET INCOME (LOSS) ATTRIBUTABLE TO ENSCO	$	292.0		 	$	98.7			$	(1.1	)		$	366.6			$	(464.2	)		$	292.0		

30

ENSCO PLC AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS
Three Months Ended September 30, 2014
(in millions)
(Unaudited)

 	Ensco plc	 	ENSCO International Incorporated	 	Pride International, Inc.	 	Other Non-Guarantor Subsidiaries of Ensco	 	Consolidating Adjustments	 	Total	
OPERATING REVENUES	$	8.3		 	$	39.0		 	$	—		 	$	1,232.4		 	$	(78.3	)	 	$	1,201.4		
OPERATING EXPENSES	 		 	 		 	 		 	 		 	 		 			
Contract drilling (exclusive of depreciation)	9.1		 	37.4		 	—		 	532.0		 	(78.3	)	 	500.2		
Depreciation	.1		 	1.8		 	—		 	133.3		 	—		 	135.2		
General and administrative	10.2		 	.1		 	—		 	19.0		 	—		 	29.3		
OPERATING (LOSS) INCOME	(11.1	)		(.3	)		—			548.1			—			536.7		
OTHER (EXPENSE) INCOME, NET	(15.0	)	 	(23.1	)	 	(13.1	)	 	12.8		 	—		 	(38.4	)	
(LOSS) INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	(26.1	)		(23.4	)		(13.1	)		560.9			—			498.3		
INCOME TAX PROVISION	—		 	(2.1	)	 	—		 	76.7		 	—		 	74.6		
DISCONTINUED OPERATIONS, NET	—		 	—		 	—		 	9.2		 	—		 	9.2		
EQUITY EARNINGS IN AFFILIATES, NET OF TAX	455.5		 	73.3		 	66.9		 	—		 	(595.7	)	 	—		
NET INCOME	429.4		 	52.0			53.8			493.4			(595.7	)		432.9		
NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	—		 	—		 	—		 	(3.5	)	 	—		 	(3.5	)	
NET INCOME ATTRIBUTABLE TO ENSCO	$	429.4			$	52.0			$	53.8			$	489.9			$	(595.7	)		$	429.4		

31

ENSCO PLC AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS
Nine Months Ended September 30, 2015
(in millions)
(Unaudited)

 	Ensco plc	 	ENSCO International Incorporated	 	Pride International, Inc.	 	Other Non-Guarantor Subsidiaries of Ensco	 	Consolidating Adjustments	 	Total	
OPERATING REVENUES	$	27.2		 	$	104.1		 	$	—		 	$	3,317.6		 	$	(213.8	)	 	$	3,235.1		
OPERATING EXPENSES	 	 	 	 	 	 	 	 	 	 	 	
Contract drilling (exclusive of depreciation)	20.4		 	104.1		 	—		 	1,543.7		 	(213.8	)	 	1,454.4		
Depreciation	.1		 	9.2		 	—		 	413.5		 	—		 	422.8		
Loss on impairment	—		 	—		 	—		 	2.4		 	—		 	2.4		
General and administrative	38.8		 	.2		 	—		 	49.2		 	—		 	88.2		
OPERATING (LOSS) INCOME	(32.1	)	 	(9.4	)	 	—		 	1,308.8		 	—		 	1,267.3		
OTHER (EXPENSE) INCOME, NET	(133.3	)	 	(21.6	)	 	(46.8	)	 	21.3		 	—		 	(180.4	)	
(LOSS) INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	(165.4	)	 	(31.0	)	 	(46.8	)	 	1,330.1		 	—		 	1,086.9		
INCOME TAX PROVISION	—		 	28.8		 	—		 	140.1		 	—		 	168.9		
DISCONTINUED OPERATIONS, NET	—		 	—		 	—		 	(33.6	)	 	—		 	(33.6	)	
EQUITY EARNINGS IN AFFILIATES, NET OF TAX	1,042.4		 	203.9		 	149.9		 	—		 	(1,396.2	)	 	—		
NET INCOME	877.0		 	144.1		 	103.1		 	1,156.4		 	(1,396.2	)	 	884.4		
NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	—		 	—		 	—		 	(7.4	)	 	—		 	(7.4	)	
NET INCOME ATTRIBUTABLE TO ENSCO	$	877.0		 	$	144.1		 	$	103.1		 	$	1,149.0		 	$	(1,396.2	)	 	$	877.0		

32

ENSCO PLC AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS
Nine Months Ended September 30, 2014
(in millions)
(Unaudited)

 	Ensco plc	 	ENSCO International Incorporated	 	Pride International, Inc.	 	Other Non-Guarantor Subsidiaries of Ensco	 	Consolidating Adjustments	 	Total	
OPERATING REVENUES	$	23.8		 	$	116.8		 	$	—		 	$	3,501.7		 	$	(237.6	)	 	$	3,404.7		
OPERATING EXPENSES	 		 	 		 	 		 	 		 	 		 	 		
Contract drilling (exclusive of depreciation)	24.4		 	115.2		 	—		 	1,660.9		 	(237.6	)	 	1,562.9		
Depreciation	.2		 	5.1		 	—		 	393.2		 	—		 	398.5		
Loss on impairment	—		 	—		 	—		 	703.5		 	—		 	703.5		
General and administrative	41.0		 	.3		 	—		 	62.3		 	—		 	103.6		
OPERATING (LOSS) INCOME	(41.8	)		(3.8	)		—			681.8			—			636.2		
OTHER (EXPENSE) INCOME, NET	(43.6	)	 	(28.5	)	 	(39.0	)	 	12.8		 	—		 	(98.3	)	
(LOSS) INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	(85.4	)		(32.3	)		(39.0	)		694.6			—			537.9		
INCOME TAX PROVISION	—		 	36.3		 	—		 	130.4		 	—		 	166.7		
DISCONTINUED OPERATIONS, NET	—		 	—		 	—		 	(811.2	)	 	—		 	(811.2	)	
EQUITY EARNINGS IN AFFILIATES, NET OF TAX	(365.4	)	 	(1,314.2	)	 	(1,502.9	)	 	—		 	3,182.5		 	—		
NET LOSS	(450.8	)		(1,382.8	)		(1,541.9	)		(247.0	)		3,182.5			(440.0	)	
NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	—		 	—		 	—		 	(10.8	)	 	—		 	(10.8	)	
NET LOSS ATTRIBUTABLE TO ENSCO	$	(450.8	)		$	(1,382.8	)		$	(1,541.9	)		$	(257.8	)		$	3,182.5			$	(450.8	)	

33

ENSCO PLC AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Three Months Ended September 30, 2015
(in millions)
(Unaudited)

	
																								
 	Ensco plc	 	ENSCO International Incorporated	 	Pride International, Inc.	 	Other Non-Guarantor Subsidiaries of Ensco	 	Consolidating Adjustments	 	Total	
 	 	 	 	 	 	 	 	 	 	 	 	
NET INCOME (LOSS)	$	292.0		 	$	98.7		 	$	(1.1	)	 	$	368.4		 	$	(464.2	)	 	$	293.8		
OTHER COMPREHENSIVE (LOSS) INCOME, NET	 	 	 	 	 	 	 	 	 	 	 	
Net change in fair value of derivatives	—		 	(14.8	)	 	—		 	—		 	—		 	(14.8	)	
Reclassification of net losses on derivative instruments from other comprehensive income into net income	—		 	5.8		 	—		 	—		 	—		 	5.8		
Other	—		 	—		 	—		 	2.9		 	—		 	2.9		
NET OTHER COMPREHENSIVE (LOSS) INCOME	—		 	(9.0	)		—			2.9			—			(6.1	)	
 	 	 	 	 	 	 	 	 	 	 	 	
COMPREHENSIVE INCOME (LOSS)	292.0		 	89.7			(1.1	)		371.3			(464.2	)		287.7		
COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	—		 	—		 	—		 	(1.8	)	 	—		 	(1.8	)	
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO ENSCO	$	292.0		 	$	89.7			$	(1.1	)		$	369.5			$	(464.2	)		$	285.9		

34

ENSCO PLC AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Three Months Ended September 30, 2014
(in millions)
(Unaudited)

	
																								
 	Ensco plc	 	ENSCO International Incorporated	 	Pride International, Inc.	 	Other Non-Guarantor Subsidiaries of Ensco	 	Consolidating Adjustments	 	Total	
 	 	 	 	 	 	 	 	 	 	 	 	
NET INCOME	$	429.4		 	$	52.0		 	$	53.8		 	$	493.4		 	$	(595.7	)	 	$	432.9		
OTHER COMPREHENSIVE (LOSS) INCOME, NET	 	 	 	 	 	 	 	 	 	 		
Net change in fair value of derivatives	—		 	(12.7	)	 	—		 	—		 	—		 	(12.7	)	
Reclassification of net gains on derivative instruments from other comprehensive income into net income	—		 	(1.4	)	 	—		 	—		 	—		 	(1.4	)	
Other	—		 	—		 	—		 	3.7		 	—		 	3.7		
NET OTHER COMPREHENSIVE (LOSS) INCOME	—			(14.1	)		—			3.7			—		 	(10.4	)	
 	 	 	 	 	 	 	 	 	 	 			
COMPREHENSIVE INCOME	429.4			37.9			53.8			497.1			(595.7	)	 	422.5		
COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	—		 	—		 	—		 	(3.5	)	 	—		 	(3.5	)	
COMPREHENSIVE INCOME ATTRIBUTABLE TO ENSCO	$	429.4			$	37.9			$	53.8			$	493.6			$	(595.7	)		$	419.0		

35

ENSCO PLC AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Nine Months Ended September 30, 2015
(in millions)
(Unaudited)

	
																								
 	Ensco plc	 	ENSCO International Incorporated	 	Pride International, Inc.	 	Other Non-Guarantor Subsidiaries of Ensco	 	Consolidating Adjustments	 	Total	
 	 	 	 	 	 	 	 	 	 	 	 	
NET INCOME	$	877.0		 	$	144.1		 	$	103.1		 	$	1,156.4		 	$	(1,396.2	)	 	$	884.4		
OTHER COMPREHENSIVE (LOSS) INCOME, NET	 	 	 	 	 	 	 	 	 	 		
Net change in fair value of derivatives	—		 	(23.5	)	 	—		 	—		 	—		 	(23.5	)	
Reclassification of net losses on derivative instruments from other comprehensive income into net income	—		 	15.9		 	—		 	—		 	—		 	15.9		
Other	—		 	—		 	—		 	4.2		 	—		 	4.2		
NET OTHER COMPREHENSIVE (LOSS) INCOME	—			(7.6	)		—			4.2			—		 	(3.4	)	
 	 	 	 	 	 	 	 	 	 	 			
COMPREHENSIVE INCOME	877.0			136.5			103.1			1,160.6			(1,396.2	)	 	881.0		
COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	—		 	—		 	—		 	(7.4	)	 	—		 	(7.4	)	
COMPREHENSIVE INCOME ATTRIBUTABLE TO ENSCO	$	877.0			$	136.5			$	103.1			$	1,153.2			$	(1,396.2	)		$	873.6		

36

ENSCO PLC AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Nine Months Ended September 30, 2014
(in millions)
(Unaudited)

	
																								
 	Ensco plc	 	ENSCO International Incorporated	 	Pride International, Inc.	 	Other Non-Guarantor Subsidiaries of Ensco	 	Consolidating Adjustments	 	Total	
 	 	 	 	 	 	 	 	 	 	 	 	
NET LOSS	$	(450.8	)	 	$	(1,382.8	)	 	$	(1,541.9	)	 	$	(247.0	)	 	$	3,182.5		 	$	(440.0	)	
OTHER COMPREHENSIVE (LOSS) INCOME, NET	 	 	 	 	 	 	 	 	 	 		
Net change in fair value of derivatives	—		 	(2.8	)	 	—		 	—		 	—		 	(2.8	)	
Reclassification of net gains on derivative instruments from other comprehensive income into net income	—		 	(3.3	)	 	—		 	—		 	—		 	(3.3	)	
Other	—		 	—		 	—		 	4.2		 	—		 	4.2		
NET OTHER COMPREHENSIVE (LOSS) INCOME	—			(6.1	)		—			4.2			—			(1.9	)	
 	 	 	 	 	 	 	 	 	 	 			
COMPREHENSIVE LOSS	(450.8	)		(1,388.9	)		(1,541.9	)		(242.8	)		3,182.5			(441.9	)	
COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	—		 	—		 	—		 	(10.8	)	 	—		 	(10.8	)	
COMPREHENSIVE LOSS ATTRIBUTABLE TO ENSCO	$	(450.8	)		$	(1,388.9	)		$	(1,541.9	)		$	(253.6	)		$	3,182.5			$	(452.7	)	

37

ENSCO PLC AND SUBSIDIARIES
CONDENSED CONSOLIDATING BALANCE SHEETS
September 30, 2015
(in millions)
(Unaudited)

 	 Ensco plc	 	ENSCO International Incorporated	 	Pride International, Inc.	 	Other Non-Guarantor Subsidiaries of Ensco	 	Consolidating Adjustments	 	Total	
                          ASSETS  	 	 	 	 	 	 	 	 	 	 	 	
CURRENT ASSETS	 	 	 	 	 	 	 	 	 	 	 	
Cash and cash equivalents	$	144.5		 	$	.1		 	$	14.6		 	$	81.2		 	$	—		 	$	240.4		
Short-term investments	850.0		 	—		 	—		 	—		 	—		 	850.0		
Accounts receivable, net 	—		 	—		 	—		 	735.6		 	—		 	735.6		
Accounts receivable from affiliates	35.3		 	190.3		 	—		 	116.6		 	(342.2	)	 	—		
Other	.5		 	84.3		 	—		 	501.8		 	—		 	586.6		
Total current assets	1,030.3		 	274.7			14.6			1,435.2			(342.2	)		2,412.6		
PROPERTY AND EQUIPMENT, AT COST	2.1		 	115.3		 	—		 	16,271.8		 	—		 	16,389.2		
Less accumulated depreciation	1.8		 	43.3		 	—		 	2,815.2		 	—		 	2,860.3		
Property and equipment, net  	.3		 	72.0			—			13,456.6			—			13,528.9		
GOODWILL	—		 	—		 	—		 	276.1		 	—		 	276.1		
DUE FROM AFFILIATES	2,727.7		 	5,593.2		 	2,084.6		 	7,489.8		 	(17,895.3	)	 	—		
INVESTMENTS IN AFFILIATES	10,159.4		 	1,440.6		 	612.5		 	—		 	(12,212.5	)	 	—		
OTHER ASSETS, NET 	27.0		 	44.3		 	—		 	151.9		 	—		 	223.2		
 	$	13,944.7		 	$	7,424.8			$	2,711.7			$	22,809.6			$	(30,450.0	)		$	16,440.8		
LIABILITIES AND SHAREHOLDERS' EQUITY  	 	 	 	 	 	 	 	 	
CURRENT LIABILITIES	 	 	 	 	 	 	 	 	 	 	 	
Accounts payable and accrued liabilities	$	50.7		 	$	56.2		 	$	23.4		 	$	672.8		 	$	—		 	$	803.1		
Accounts payable to affiliates	22.4		 	129.3		 	—		 	190.5		 	(342.2	)	 	$	—		
Total current liabilities	73.1		 	185.5			23.4			863.3			(342.2	)		803.1		
DUE TO AFFILIATES 	1,042.0		 	4,690.5		 	1,805.0		 	10,357.8		 	(17,895.3	)	 	—		
LONG-TERM DEBT 	3,807.8		 	149.2		 	1,946.3		 	—		 	—		 	5,903.3		
DEFERRED INCOME TAXES	—		 	208.0		 	—		 	—		 	—		 	208.0		
OTHER LIABILITIES	—		 	6.6		 	5.5		 	492.5		 	—		 	504.6		
ENSCO SHAREHOLDERS' EQUITY 	9,021.8		 	2,185.0		 	(1,068.5	)	 	11,085.3		 	(12,212.5	)	 	9,011.1		
NONCONTROLLING INTERESTS	—		 	—		 	—		 	10.7		 	—		 	10.7		
Total equity	9,021.8		 	2,185.0			(1,068.5	)		11,096.0			(12,212.5	)		9,021.8		
      	$	13,944.7		 	$	7,424.8			$	2,711.7			$	22,809.6			$	(30,450.0	)		$	16,440.8		

38

ENSCO PLC AND SUBSIDIARIES
CONDENSED CONSOLIDATING BALANCE SHEETS
December 31, 2014
(in millions)

 	 Ensco plc	 	ENSCO International Incorporated	 	Pride International, Inc.	 	Other Non-Guarantor Subsidiaries of Ensco	 	Consolidating Adjustments	 	Total	
                          ASSETS  	 	 	 	 	 	 	 	 	 	 	 	
CURRENT ASSETS	 	 	 	 	 	 	 	 	 	 	 	
Cash and cash equivalents	$	287.4		 	$	—		 	$	90.8		 	$	286.6		 	$	—		 	$	664.8		
Short-term investments	712.0		 	—		 	—		 	45.3		 	—		 	757.3		
Accounts receivable, net 	—		 	—		 	—		 	883.3		 	—		 	883.3		
Accounts receivable from affiliates	34.5		 	210.4		 	—		 	134.6		 	(379.5	)	 	—		
Other	4.1		 	86.9		 	—		 	538.4		 	—		 	629.4		
Total current assets	1,038.0			297.3			90.8			1,888.2			(379.5	)		2,934.8		
PROPERTY AND EQUIPMENT, AT COST	2.1		 	71.5		 	—		 	14,901.9		 	—		 	14,975.5		
Less accumulated depreciation	1.7		 	34.1		 	—		 	2,404.9		 	—		 	2,440.7		
Property and equipment, net  	.4			37.4			—			12,497.0			—			12,534.8		
GOODWILL	—		 	—		 	—		 	276.1		 	—		 	276.1		
DUE FROM AFFILIATES	2,873.2		 	4,748.2		 	1,835.0		 	6,308.8		 	(15,765.2	)	 	—		
INVESTMENTS IN AFFILIATES	9,084.8		 	1,233.5		 	461.6		 	—		 	(10,779.9	)	 	—		
OTHER ASSETS, NET 	17.0		 	47.4		 	—		 	249.8		 	—		 	314.2		
 	$	13,013.4			$	6,363.8			$	2,387.4			$	21,219.9			$	(26,924.6	)		$	16,059.9		
LIABILITIES AND SHAREHOLDERS' EQUITY  	 	 	 	 	 	 	 	 	
CURRENT LIABILITIES	 	 	 	 	 	 	 	 	 	 	 	
Accounts payable and accrued liabilities	$	47.8		 	$	42.8		 	$	34.3		 	$	944.9		 	$	—		 	$	1,069.8		
Accounts payable to affiliates	23.5		 	158.3		 	—		 	197.7		 	(379.5	)	 	—		
Current maturities of long-term debt	—		 	—		 	—		 	34.8		 	—		 	34.8		
Total current liabilities	71.3			201.1			34.3			1,177.4			(379.5	)		1,104.6		
DUE TO AFFILIATES 	994.8		 	3,817.4		 	1,547.7		 	9,405.3		 	(15,765.2	)	 	—		
LONG-TERM DEBT 	3,724.4		 	149.2		 	1,973.2		 	38.8		 	—		 	5,885.6		
DEFERRED INCOME TAXES	—		 	176.8		 	—		 	2.7		 	—		 	179.5		
OTHER LIABILITIES	—		 	6.1		 	7.0		 	654.2		 	—		 	667.3		
ENSCO SHAREHOLDERS' EQUITY 	8,222.9		 	2,013.2		 	(1,174.8	)	 	9,933.6		 	(10,779.9	)	 	8,215.0		
NONCONTROLLING INTERESTS	—		 	—		 	—		 	7.9		 	—		 	7.9		
Total equity	8,222.9		 	2,013.2			(1,174.8	)		9,941.5			(10,779.9	)		8,222.9		
      	$	13,013.4		 	$	6,363.8			$	2,387.4			$	21,219.9			$	(26,924.6	)		$	16,059.9		

39

	
																								
ENSCO PLC AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS
Nine Months Ended September 30, 2015
(in millions)
(Unaudited)	
 	Ensco plc	 	ENSCO International Incorporated	 	Pride International, Inc.	 	Other Non-guarantor Subsidiaries of Ensco	 	Consolidating Adjustments	 	Total	
OPERATING ACTIVITIES	 		 	 		 	 		 	 		 	 		 	 		
Net cash (used in) provided by operating activities of continuing operations	$	(34.2	)	 	$	(7.1	)	 	$	(86.1	)	 	$	1,402.0		 	$	—		 	$	1,274.6		
INVESTING ACTIVITIES	 	 	 	 	 	 	 	 	 	 	 	
Additions to property and equipment 	—		 	—		 	—		 	(1,445.8	)	 	—		 	(1,445.8	)	
Purchases of short-term investments	(850.0	)	 	—		 	—		 	—		 	—		 	(850.0	)	
Maturities of short-term investments	712.0		 	—		 	—		 	45.3		 	—		 	757.3		
Other	—		 	—		 	—		 	1.4		 	—		 	1.4		
Net cash used in investing activities of continuing operations 	(138.0	)	 	—			—			(1,399.1	)		—			(1,537.1	)	
FINANCING ACTIVITIES	 		 	 		 	 		 	 		 	 		 			
Proceeds from issuance of senior notes	1,078.7		 	—		 	—		 	—		 	—		 	1,078.7		
Reduction of long-term borrowings	(1,072.5	)	 	—		 	—		 	—		 	—		 	(1,072.5	)	
Cash dividends paid	(105.9	)	 	—		 	—		 	—		 	—		 	(105.9	)	
Premium paid on redemption of debt	(30.3	)	 	—		 	—		 	—		 	—		 	(30.3	)	
Debt financing costs	(10.5	)	 	—		 	—		 	—		 	—		 	(10.5	)	
Advances from (to) affiliates	175.0		 	7.2		 	9.9		 	(192.1	)	 	—		 	—		
Other	(5.2	)	 	—		 	—		 	(3.2	)	 	—		 	(8.4	)	
Net cash provided by (used in) financing activities	29.3		 	7.2			9.9			(195.3	)		—			(148.9	)	
DISCONTINUED OPERATIONS	 	 	 	 	 	 	 	 	 	 			
Operating activities	—		 	—		 	—		 	(12.7	)	 	—		 	(12.7	)	
Investing activities	—		 	—		 	—		 	(.3	)	 	—		 	(.3	)	
Net cash used in discontinued operations	—		 	—			—			(13.0	)		—			(13.0	)	
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(142.9	)	 	.1			(76.2	)		(205.4	)		—			(424.4	)	
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	287.4		 	—		 	90.8		 	286.6		 	—		 	664.8		
CASH AND CASH EQUIVALENTS, END OF PERIOD	$	144.5		 	$	.1		 	$	14.6		 	$	81.2		 	$	—		 	$	240.4		

40

	
																								
ENSCO PLC AND SUBSIDIARIES
CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS
Nine Months Ended September 30, 2014
(in millions)
(Unaudited)	
 	Ensco plc	 	ENSCO International Incorporated 	 	Pride International, Inc.	 	Other Non-guarantor Subsidiaries of Ensco	 	Consolidating Adjustments	 	Total	
OPERATING ACTIVITIES	 		 	 		 	 		 	 		 	 		 	 		
Net cash (used in) provided by operating activities of continuing operations	$	(82.2	)	 	$	(91.7	)	 	$	(76.7	)	 	$	1,763.3		 	$	—		 	$	1,512.7		
INVESTING ACTIVITIES	 		 	 		 	 		 	 		 	 		 			
Additions to property and equipment 	—		 	(28.1	)	 	—		 	(1,217.0	)	 	—		 	(1,245.1	)	
Maturities of short-term investments	—		 	—		 	—		 	50.0		 	 	 	50.0		
Purchases of short-term investments	—		 	—		 	—		 	(45.3	)	 	—		 	(45.3	)	
Other	—		 	—		 	—		 	9.8		 	—		 	9.8		
Net cash used in investing activities of continuing operations  	—		 	(28.1	)	 	—		 	(1,202.5	)	 	—		 	(1,230.6	)	
FINANCING ACTIVITIES	 		 	 		 	 		 	 		 	 		 			
Proceeds from issuance of senior notes	1,246.4		 	—		 	—		 	—		 	—		 	1,246.4		
Cash dividends paid	(526.7	)	 	—		 	—		 	—		 	—		 	(526.7	)	
Reduction of long-term borrowings	—		 	—		 	—		 	(30.9	)	 	—		 	(30.9	)	
Debt financing costs	(11.3	)	 	—		 	—		 	—		 	—		 	(11.3	)	
Advances (to) from affiliates	(295.5	)	 	119.3		 	414.8		 	(238.6	)	 	—		 	—		
Other	(10.2	)	 	—		 	—		 	(7.4	)	 	—		 	(17.6	)	
Net cash provided by (used in) financing activities	402.7		 	119.3		 	414.8		 	(276.9	)	 	—		 	659.9		
DISCONTINUED OPERATIONS	 	 	 	 	 	 	 	 	 	 			
Operating activities	—		 	—		 	—		 	10.6		 	—		 	10.6		
Investing activities	—		 	—		 	—		 	55.5		 	—		 	55.5		
Net cash provided by discontinued operations	—		 	—		 	—		 	66.1		 	—		 	66.1		
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	320.5		 	(.5	)	 	338.1		 	350.0		 	—		 	1,008.1		
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	46.5		 	.5		 	4.9		 	113.7		 	—		 	165.6		
CASH AND CASH EQUIVALENTS, END OF PERIOD	$	367.0		 	$	—		 	$	343.0		 	$	463.7		 	$	—		 	$	1,173.7		

41

Item 2.   Management's Discussion and Analysis of Financial Condition and Results of Operations
    
Management's Discussion and Analysis of Financial Condition and Results of Operations should be read in conjunction with the accompanying unaudited consolidated financial statements as of September 30, 2015 and for the three-month and nine-month periods ended September 30, 2015 and 2014 included elsewhere herein and with our annual report on Form 10-K for the year ended December 31, 2014 . The following discussion and analysis contains forward-looking statements that involve risks and uncertainties. Our actual results may differ materially from those anticipated in these forward-looking statements as a result of certain factors, including those set forth under “Risk Factors” in Item 1A of our annual report and elsewhere in this quarterly report. See “Forward-Looking Statements.”

EXECUTIVE SUMMARY

We are one of the leading providers of offshore contract drilling services to the international oil and gas industry. We currently own and operate an offshore drilling rig fleet of 69 rigs, including  four rigs currently under construction, with drilling operations in most of the strategic markets around the globe. Our rig fleet includes ten drillships, 13 dynamically positioned semisubmersible rigs, four moored semisubmersible rigs and 42 jackup rigs. Our fleet is the world's second largest amongst competitive rigs, our ultra-deepwater fleet is one of the newest in the industry, and our premium jackup fleet is the largest of any offshore drilling company.

The contracting environment remained very challenging for offshore drilling contractors during the third quarter. Despite a modest increase in market tenders and inquiries in some markets, contracting opportunities remained limited, largely due to near-term uncertainty in commodity prices. Contract awards, in general, have been short-term in nature and subject to an extremely competitive bidding process. Customers’ capital spending levels, which have declined significantly in recent periods, continue to negatively impact both utilization and day rates. Certain customers are requesting contract concessions or terminating drilling contracts. Brent crude prices, which averaged approximately $50 per barrel during the third quarter, continue to constrain customer demand, and we expect that there will be limited contracting opportunities during the remainder of 2015 and 2016.

In July, we accepted delivery of ENSCO DS-8, which is committed under a long-term contract in Angola, and agreed with the shipyard to delay the delivery of ENSCO DS-10, our only remaining floater under construction, until the first quarter of 2017. Also in July, we received a notice of termination for convenience from our ENSCO DS-9 customer under the terms of the drilling contract. The rig was delivered from the shipyard in April and is currently uncontracted.

Also in April, we accepted delivery of ENSCO 110, a premium jack-up rig, which has commenced drilling operations under a long-term contract in the United Arab Emirates.

Seven of our older, less capable rigs are being marketed for sale as part of our fleet high-grading strategy and were classified as “held for sale” on our condensed consolidated balance sheet as of September 30, 2015. Additionally, we are taking steps to reduce costs in response to limited contracting opportunities and have cold stacked, or are in the process of cold stacking, a significant number of rigs. We continue to evaluate strategic options for aged, cold stacked rigs, which could include disposal.

We expect that cash flow generated in the near-term will primarily be used to fund capital expenditures, most notably milestone payments for newbuild rigs. During the first three quarters, our Board of Directors declared a $0.15 per share quarterly dividend, a $0.60 per share reduction from the prior year level. When evaluating dividend payment timing and amounts, our Board of Directors considers several factors, including our profitability, liquidity, financial condition, market outlook, reinvestment opportunities and capital requirements.

We completed a $1.1 billion debt offering during the first quarter and used the proceeds to redeem our 2016 Notes and our outstanding MARAD obligations. As a result, we currently have no debt maturities prior to 2019.

42

Based on our strong balance sheet and $6.6 billion of contractual backlog, we believe future capital expenditures, debt service payments and dividend payments will primarily be funded from cash and short-term investments, future operating cash flows and borrowings under our commercial paper program and/or revolving credit facility. These sources of cash provide an adequate level of liquidity and flexibility to potentially make additional investments in our fleet. We may decide to access debt and/or equity markets to raise additional capital or increase liquidity, as necessary.

BUSINESS ENVIRONMENT
 
Floaters

The floater contracting environment continues to be very challenging due to reduced demand, as well as additional newbuild supply. Floater demand remains low following the sharp decline in commodity prices during 2014 and early 2015, and Brent crude prices remain largely unchanged through the third quarter of 2015. Customers have delayed drilling programs and are exploring subletting opportunities for contracted rigs thereby exacerbating supply pressure. In addition, certain customers are requesting contract concessions or terminating drilling contracts. Customers are currently preparing their 2016 budgets, and we anticipate that capital spending may decline in 2016 relative to 2015. We expect that day rates and utilization will remain under pressure throughout 2016.

During the third quarter, we received a notice of termination for convenience from our ENSCO DS-9 customer. Under the terms of the contract, our customer is obligated to pay us termination fees, which are payable monthly, of two years of the operating day rate (approximately $550,000), which may be partially defrayed should we re-contract the rig and/or mitigate certain costs. Our customer is also contractually obligated to reimburse certain costs that we incurred prior to or as a direct result of the termination.

During the second quarter, we agreed with our customer to extend the contract term on ENSCO DS-7 by twelve months at a reduced day rate and early terminate the ENSCO DS-1 contract.  ENSCO DS-1 is now cold stacked in Spain. Additionally, our customer placed ENSCO DS-6 on a special standby rate equal to 70% of the contractual operating rate beginning in late September 2015.

During the first quarter, we received notice of termination for convenience for ENSCO DS-4. Under the terms of the ENSCO DS-4 drilling contract, the customer was obligated to pay a lump sum fee upon termination, which occurred during the third quarter. We collected the lump sum termination fee in October.

Currently, there are approximately 46 newbuild floaters under construction scheduled for delivery before the end of 2017, approximately half of which are contracted. Several newbuilds deliveries have already been delayed into future years, and it is possible that more uncontracted newbuilds will be delayed or cancelled.
Drilling contractors have scrapped or cold stacked approximately 69 floaters since September 2014 due to a lack of contracting opportunities. Additionally, approximately 24 floaters older than 30 years of age are currently idle. Approximately 59 floaters greater than 30 years old have contracts that will expire by year-end 2017. Operating costs for idle rigs as well as expenditures required to recertify rigs during regulatory surveys may prove cost prohibitive and, as a result, drilling contractors may elect to scrap or cold stack these rigs. We expect floater scrapping and cold stacking to continue into 2016.
Jackups

Demand for jackups also remains low due to the sharp decline in commodity prices. Customers have delayed drilling programs and are exploring subletting opportunities for contracted rigs thereby exacerbating supply pressure. In addition, certain customers are requesting contract concessions or terminating drilling contracts. Customers are currently preparing their 2016 budgets, and we anticipate that capital spending may decline in 2016 relative to 2015. We expect that day rates and utilization will remain under pressure throughout 2016.

43

In October, we received notice of termination for convenience for ENSCO 84, effective 30 days following receipt. We are currently in discussions with the customer regarding future work opportunities for the rig. Separately, we agreed to reduced day rates on certain jackup drilling contracts during the third quarter.
Currently, there are approximately 105 uncontracted competitive newbuild jackup rigs scheduled for delivery before the end of 2017. Over the past year, some jackup orders have been cancelled and many newbuild jackups have been delayed. We expect that additional rigs may be delayed or cancelled given limited contracting opportunities. Currently, approximately 70 marketed jackups older than 30 years of age are stacked or idle. Furthermore, approximately 90 competitive jackups that are 30 years of age or older have contracts that expire before the end of 2017, and these rigs may be unable to find additional work. Operating costs for idle rigs as well as expenditures required to recertify rigs during regulatory surveys may prove cost prohibitive and, as a result, drilling contractors may elect to scrap or cold stack these rigs. We expect jackup scrapping and cold stacking to continue into 2016.

RESULTS OF OPERATIONS
 
The following table summarizes our condensed consolidated results of operations for the three-month and nine-month periods ended September 30, 2015 and 2014 (in millions):

																
 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
 	2015	 	2014	 	2015	 	2014	
Revenues	$	1,012.2		 	$	1,201.4		 	$	3,235.1		 	$	3,404.7		
Operating expenses	 		 	 		 	 		 	 		
Contract drilling (exclusive of depreciation)	433.5		 	500.2		 	1,454.4		 	1,562.9		
Depreciation	145.2		 	135.2		 	422.8		 	398.5		
Loss on impairment	2.4		 	—		 	2.4		 	703.5		
General and administrative	28.4		 	29.3		 	88.2		 	103.6		
Operating income	402.7		 	536.7		 	1,267.3		 	636.2		
Other expense, net	(52.4	)	 	(38.4	)	 	(180.4	)	 	(98.3	)	
Provision for income taxes	33.2		 	74.6		 	168.9		 	166.7		
Income from continuing operations	317.1		 	423.7		 	918.0		 	371.2		
(Loss) income from discontinued operations, net 	(23.3	)	 	9.2		 	(33.6	)	 	(811.2	)	
Net income (loss)	293.8		 	432.9		 	884.4		 	(440.0	)	
Net income attributable to noncontrolling interests	(1.8	)	 	(3.5	)	 	(7.4	)	 	(10.8	)	
Net income (loss) attributable to Ensco	$	292.0		 	$	429.4		 	$	877.0		 	$	(450.8	)	
 
For the three-month period ended September 30, 2015 , revenues declined $189.2 million , or 16% , as compared to the prior year quarter primarily due to fewer days under contract across our fleet and, to a lesser extent, lower average rates. These declines were partially offset by ENSCO DS-4 lump sum termination revenue, ENSCO DS-9 related revenue, revenue generated from semisubmersible rigs that were undergoing capital enhancement projects during 2014 and newbuild additions to our jackup fleet.

For the nine-month period ended September 30, 2015 , revenues declined $169.6 million , or 5% , as compared to the prior year period primarily due to fewer days under contract across our fleet and, to a lesser extent, lower average day rates in our floater fleet. These declines were partially offset by revenues generated from semisubmersible rigs that were undergoing capital enhancement projects during 2014, newbuild additions to our jackup fleet, ENSCO DS-4 lump sum termination revenue and ENSCO DS-9 related revenue.

Contract drilling expense declined $66.7 million , or 13% , and $108.5 million , or 7% , for the three-month and nine-month periods ended September 30, 2015 , respectively, primarily due to rig stackings, as well as other cost control

44

initiatives which reduced offshore personnel costs and daily rig operating expenses. These declines were partially offset by newbuild additions to our jackup fleet and ENSCO DS-9 related costs.

During the three-month and nine-month periods ended September 30, 2015, we recorded a non-cash loss on impairment with respect to an older, less capable jackup rig totaling $2.4 million . During the nine-month period ended September 30, 2014, we recorded a non-cash loss on impairment with respect to older, less capable rigs in our Floaters segment totaling $703.5 million . See below for additional information on our results by segment.
 
A significant number of our drilling contracts are of a long-term nature. Accordingly, an increase or decline in demand for contract drilling services generally affects our operating results and cash flows gradually over future quarters as long-term contracts expire and new contracts and/or options are priced at current market rates.

Rig Counts, Utilization and Average Day Rates
 
The following table summarizes our offshore drilling rigs by reportable segment and rigs under construction as of September 30, 2015 and 2014 :

				
 	2015	 	2014	
Floaters (1)(3)	22	 	21	
Jackups (2)(3)	36	 	38	
Under construction (3)	4	 	7	
Held for sale (1)(2)(4)	7	 	5	
Total	69	 	71	

(1)  	During the fourth quarter of 2014, we classified ENSCO DS-2 as "held for sale."	

(2)  	During the fourth quarter of 2014, we classified ENSCO 58 and ENSCO 90 as "held for sale." During 2015, we classified ENSCO 91 as "held for sale."	

(3)  	During 2015, we accepted delivery of two ultra-deepwater drillships, ENSCO DS-8 and ENSCO DS-9, and a premium jack-up rig, ENSCO 110.	

(4)  	During the fourth quarter of 2014, we sold ENSCO 5000. During 2015, we sold ENSCO 5002.	
The following table summarizes our rig utilization and average day rates by reportable segment for the three-month and nine-month periods ended September 30, 2015 and 2014 :

																
 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
 	2015	 	2014	 	2015	 	2014	
Rig Utilization (1)	 		 	 		 	 		 	 		
Floaters	59	%	 	82	%	 	73	%	 	78	%	
Jackups	64	%	 	92	%	 	76	%	 	89	%	
Total	62	%	 	89	%	 	75	%	 	85	%	
Average Day Rates (2)	 		 	 		 	 	 	 	
Floaters	$	421,903		 	$	451,078		 	$	421,686		 	$	465,633		
Jackups	133,619		 	139,997		 	139,634		 	137,766		
Total	$	232,008		 	$	239,233		 	$	238,265		 	$	242,918		

(1)  	Rig utilization is derived by dividing the number of days under contract by the number of days in the period. Days under contract equals the total number of days that rigs have earned and recognized day rate revenue,	

45

including days associated with early contract terminations, compensated downtime and mobilizations. When revenue is earned but is deferred and amortized over a future period, for example when a rig earns revenue while mobilizing to commence a new contract or while being upgraded in a shipyard, the related days are excluded from days under contract.

For newly-constructed or acquired rigs, the number of days in the period begins upon commencement of drilling operations for rigs with a contract or when the rig becomes available for drilling operations for rigs without a contract.

(2)  	Average day rates are derived by dividing contract drilling revenues, adjusted to exclude certain types of non-recurring reimbursable revenues, lump sum revenues and revenues attributable to amortization of drilling contract intangibles, by the aggregate number of contract days, adjusted to exclude contract days associated with certain mobilizations, demobilizations, shipyard contracts and standby contracts.  	

Detailed explanations of our operating results, including discussions of revenues, contract drilling expense and depreciation expense by segment, are provided below.

Operating Income
 
Our business consists of three operating segments: (1) Floaters, which includes our drillships and semisubmersible rigs, (2) Jackups and (3) Other, which currently consists of management services on rigs owned by third-parties. Our two reportable segments, Floaters and Jackups, provide one service, contract drilling.
Segment information is presented below (in millions).  General and administrative expense and depreciation expense incurred by our corporate office are not allocated to our operating segments for purposes of measuring segment operating income and were included in "Reconciling Items." Prior year information has been reclassified to conform to the current year presentation.

Three Months Ended September 30, 2015

																								
 	Floaters	 	Jackups	 	Other	 	Operating Segments Total	 	Reconciling Items	 	Consolidated Total	
Revenues	$	646.4		 	$	325.8		 	$	40.0		 	$	1,012.2		 	$	—		 	$	1,012.2		
Operating expenses	 	 	 	 	 	 	 	 	 	 	 	
Contract drilling (exclusive of depreciation)	242.4		 	160.0		 	31.1		 	433.5		 	—		 	433.5		
Depreciation	95.7		 	44.8		 	—		 	140.5		 	4.7		 	145.2		
Loss on Impairment	—		 	2.4		 	—		 	2.4		 	—		 	2.4		
General and administrative	—		 	—		 	—		 	—		 	28.4		 	28.4		
Operating income (loss)	$	308.3		 	$	118.6		 	$	8.9		 	$	435.8		 	$	(33.1	)	 	$	402.7		

Three Months Ended September 30, 2014

																								
 	Floaters	 	Jackups	 	Other	 	Operating Segments Total	 	Reconciling Items	 	Consolidated Total	
Revenues	$	703.5		 	$	481.0		 	$	16.9		 	$	1,201.4		 	$	—		 	$	1,201.4		
Operating expenses	 	 	 	 	 	 	 	 	 	 	 	
Contract drilling (exclusive of depreciation)	291.3		 	197.9		 	11.0		 	500.2		 	—		 	500.2		
Depreciation	87.9		 	45.3		 	—		 	133.2		 	2.0		 	135.2		
General and administrative	—		 	—		 	—		 	—		 	29.3		 	29.3		
Operating income (loss)	$	324.3		 	$	237.8		 	$	5.9		 	$	568.0		 	$	(31.3	)	 	$	536.7		

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Nine Months Ended September 30, 2015

																								
 	Floaters	 	Jackups	 	Other	 	Operating Segments Total	 	Reconciling Items	 	Consolidated Total	
Revenues	$	1,975.7		 	$	1,138.2		 	$	121.2		 	$	3,235.1		 	$	—		 	$	3,235.1		
Operating expenses	 	 	 	 	 	 	 	 	 	 	 	
Contract drilling (exclusive of depreciation)	813.6		 	544.2		 	96.6		 	1,454.4		 	—		 	1,454.4		
Depreciation	283.1		 	129.9		 	—		 	413.0		 	9.8		 	422.8		
Loss on Impairment	—		 	2.4		 	—		 	2.4		 	—		 	2.4		
General and administrative			 			 	—		 	—		 	88.2		 	88.2		
Operating income (loss)	$	879.0		 	$	461.7		 	$	24.6		 	$	1,365.3		 	$	(98.0	)	 	$	1,267.3		

Nine Months Ended September 30, 2014

																								
 	Floaters	 	Jackups	 	Other	 	Operating Segments Total	 	Reconciling Items	 	Consolidated Total	
Revenues	$	2,034.6		 	$	1,320.1		 	$	50.0		 	$	3,404.7		 	$	—		 	$	3,404.7		
Operating expenses	 	 	 	 	 	 	 	 	 	 	 	
Contract drilling (exclusive of depreciation)	907.8		 	621.1		 	34.0		 	1,562.9		 	—		 	1,562.9		
Depreciation	266.9		 	125.6		 	—		 	392.5		 	6.0		 	398.5		
Loss on Impairment	703.5		 	—		 	—		 	703.5		 	—		 	703.5		
General and administrative	—		 	—		 	—		 	—		 	103.6		 	103.6		
Operating income (loss)	$	156.4		 	$	573.4		 	$	16.0		 	$	745.8		 	$	(109.6	)	 	$	636.2		

Floaters

Floater revenues for the three-month period ended September 30, 2015 declined $57.1 million , or 8% , compared to the prior year quarter primarily due to fewer days under contract across our floater fleet and, to a lesser extent, lower average day rates. These declines were offset by $110.6 million in revenue associated with the ENSCO DS-4 lump sum termination fee. Our customer paid a fee totaling $145.7 million, which included repayment of a $16.7 million receivable for mobilization and capital upgrades. The termination revenue was partially offset by the write-off of an $18.4 million contract intangible asset related to the terminated drilling contract. The net floater revenue decline was also offset by the addition of ENSCO DS-9 related revenue, as discussed in "Note 1 - Unaudited Condensed Consolidated Financial Statements", and more days under contract for semisubmersible rigs ENSCO 5004, ENSCO 5005 and ENSCO 5006, all of which were in the shipyard for capital enhancement projects during 2014.

Floater contract drilling expense for the three-month period ended September 30, 2015 declined $48.9 million , or 17% , compared to the prior year quarter primarily due to rig stackings, as well as other cost control initiatives which reduced offshore personnel costs and daily rig operating expenses. We completed the ENSCO 8501, ENSCO 8502 and ENSCO DS-1 cold stacking process, which significantly reduced daily operating expenses as compared to the prior year quarter. These declines were partially offset by the addition of ENSCO DS-9 related costs and higher contract drilling expense for the aforementioned semisubmersible rigs that were undergoing capital enhancement projects during 2014. Depreciation expense increased $7.8 million , or 9% , primarily due to capital enhancement projects on the aforementioned semisubmersible rigs, partially offset by lower depreciation expense on floaters that were impaired during 2014.

Floater revenues for the nine-month period ended September 30, 2015 declined $58.9 million , or 3% , compared to the prior year primarily due to fewer days under contract across our floater fleet and, to a lesser extent, lower average

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day rates. These declines were partially offset by the aforementioned semisubmersible rigs that were undergoing capital enhancement projects during 2014, ENSCO DS-4 lump sum termination revenue and the addition of ENSCO DS-9 related revenue.

Floater contract drilling expense for the nine-month period ended September 30, 2015 declined $94.2 million , or 10% , compared to the prior year primarily due to rig stackings, as well as other cost control initiatives which reduced offshore personnel costs and daily rig operating expenses. We completed the ENSCO 8501, ENSCO 8502 and ENSCO DS-1 cold stacking process, which significantly reduced daily operating expenses as compared to the prior year. These declines were partially offset by higher contract drilling expense for ENSCO 5004, ENSCO 5005, ENSCO 5006 and ENSCO DS-9. Depreciation expense increased by $16.2 million , or 6% , primarily due to capital enhancement projects on the aforementioned semisubmersible rigs, partially offset by lower depreciation expense on floaters that were impaired during 2014.

Jackups

Jackup revenues for the three-month period ended September 30, 2015 declined $155.2 million , or 32% , as compared to the prior year quarter primarily due to fewer contracted days across our jackup fleet and the sale of ENSCO 83, ENSCO 89 and ENSCO 98. We executed charter agreements with the purchaser of ENSCO 83, ENSCO 89, and ENSCO 98 to continue operating these rigs for the remaining contract period. Revenues earned by these rigs subsequent to their sale on September 30, 2014 were included within the Other segment. These revenue declines were partially offset by the commencement of the ENSCO 122 and ENSCO 110 long-term contracts during the fourth quarter of 2014 and second quarter of 2015, respectively.
Jackup contract drilling expense for the three-month period ended September 30, 2015 declined $37.9 million , or 19% , as compared to the prior year quarter primarily due to rig stackings, as well as other cost control initiatives which reduced offshore personnel costs and daily rig operating expenses. Contract drilling expense also declined due to the sale of ENSCO 83, ENSCO 89 and ENSCO 98, partially offset by the aforementioned additions to our jackup fleet. Depreciation expense was comparable to the prior year quarter.
  
Jackup revenues for the nine-month period ended September 30, 2015 declined $181.9 million , or 14% , as compared to the prior year period. The decline was primarily due to fewer contracted days across our jackup fleet and the sale of the aforementioned jackup rigs, partially offset by the commencement of the ENSCO 120, ENSCO 121, and ENSCO 122 long-term drilling contracts during 2014 and the commencement of the ENSCO 110 long-term drilling contract during 2015.

Jackup contract drilling expense for the nine-month period ended September 30, 2015 declined $76.9 million , or 12% , as compared to the prior year period due to rig stackings, as well as other cost control initiatives which reduced offshore personnel costs and daily rig operating expenses. Jackup contract drilling expense also declined due to the sale of the aforementioned jackup rigs, partially offset by the aforementioned additions to our Jackup fleet. Depreciation expense increased by $4.3 million , or 3% , primarily due to additions to our Jackup fleet.
 
Impairment of Long-Lived Assets

Fiscal Year 2015 - We continually assess our rig portfolio and actively work with our rig broker to market certain rigs that no longer meet our standards for economic returns or are not part of our long-term strategic plan. On a quarterly basis, we assess whether any rig meets the criteria established by Financial Accounting Standards Board ASC 360-10-45 for “held for sale” classification on our balance sheet. We measure the fair value of our assets held for sale by applying a market approach based on third-party estimated prices that would be received in exchange for the assets in an orderly transaction between market participants. We reassess the fair value of our held for sale assets on a quarterly basis and adjust the carrying value, as necessary.
    
During 2015, we adopted the Financial Accounting Standards Board’s Accounting Standards Update 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity ("Update 2014-08"). Under the

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new guidance, only disposals representing a strategic shift in operations should be presented as discontinued operations. As a result, individual assets that we classify as held for sale during 2015 are not reported as discontinued operations. Rigs that were classified as held for sale prior to 2015 continue to be reported as discontinued operations.

During the third quarter of 2015, management received approval from our Board of Directors to market for sale ENSCO 91, an older, less capable jackup rig that we cold stacked during the second quarter. We concluded that the rig met the held for sale criteria as of September 30, 2015, and its carrying value was written-down to fair value based on its estimated sales price. We recorded a pre-tax, non-cash loss on impairment totaling $2.4 million , which was included in income from continuing operations in our condensed consolidated statement of operations for the three-month and nine-month periods ended September 30, 2015.

In performing our quarterly assessment of the remaining held for sale rigs (ENSCO 5001, ENSCO 6000, ENSCO 7500, ENSCO DS-2, ENSCO 58 and ENSCO 90), we concluded that impairments were required as a result of declines in fair values observed during the third quarter. We recognized a pre-tax, non-cash loss on impairment of $25.6 million , which was included in (loss) income from discontinued operations, net in our condensed consolidated statement of operations for the three-month and nine-month periods ended September 30, 2015. See “Note 9 - Discontinued Operations” for additional information on rigs classified as held for sale and presented in discontinued operations.

Our condensed consolidated balance sheet as of September 30, 2015 included seven held for sale rigs with an aggregate carrying value of $127.5 million . We believe the asset carrying values are supported by current market prices. If there is continued deterioration in the general business environment for offshore drilling rigs and/or further declines in the estimated sales price for drilling rigs, the estimated fair values of these assets will likely decline below their current carrying values, resulting in additional impairments.

On a quarterly basis, we evaluate the carrying value of our property and equipment to identify events or changes in circumstances ("triggering events") that indicate the carrying value may not be recoverable. If the global economy, our overall business outlook, or our expectations regarding the marketability of one or more of our drilling rigs deteriorates further, we may conclude that a triggering event has occurred and perform a recoverability test that could lead to a material impairment charge in future periods.

During 2015, customers exercised their termination rights for certain drilling contracts, and we agreed to amended contract terms in some cases. In each instance, we concluded that a triggering event had occurred and performed an asset impairment analysis. Based on the analysis performed, we concluded there were no impairments as the carrying values of these rigs were recoverable. We continue to have ongoing discussions with certain customers requesting contract concessions. The outcome of these negotiations remains uncertain; however, deterioration of existing contract terms and/or change in our long-term operating assumptions could lead to a material impairment charge in future periods.

Fiscal Year 2014 - During the second quarter of 2014, demand for floaters deteriorated as a result of continued reduction in capital spending by customers in addition to delays in customers’ drilling programs. The reduction in demand, combined with the increasing supply from newbuild floater deliveries, led to a very competitive market. In general, contracting activity for floaters declined significantly, and new day rate fixtures were substantially lower than rates previously realized. In response to the adverse change in the floaters business climate, management evaluated our older, less capable floaters and committed to a plan to sell five rigs. ENSCO 5000, ENSCO 5001, ENSCO 5002, ENSCO 6000 and ENSCO 7500 were removed from our portfolio of rigs marketed for contract drilling services and actively marketed for sale. These rigs were written down to fair value, less costs to sell, as of May 31, 2014 and classified as "held for sale." We completed the sale of ENSCO 5000 during the fourth quarter of 2014 and ENSCO 5002 during the second quarter of 2015. The remaining three floaters were classified as "held for sale" on our September 30, 2015 condensed consolidated balance sheet.

We measured the fair value of the "held for sale" rigs by applying a market approach, which was based on unobservable third-party estimated prices that would be received in exchange for the assets in an orderly transaction

49

between market participants. We recorded a pre-tax, non-cash loss on impairment totaling $546.4 million during the nine-month period ended September 30, 2014 . The impairment charge was included in loss from discontinued operations, net in our condensed consolidated statement of operations for the nine-month period ended September 30, 2014 . See "Note 9 - Discontinued Operations" for additional information on our "held for sale" rigs.

As a result of the adverse change in the floater business climate observed during the second quarter of 2014, management's commitment to a plan to sell five floaters during the second quarter of 2014 and the impairment charge incurred on the "held for sale" floaters, management concluded that a triggering event had occurred during the second quarter of 2014 and performed an asset impairment analysis on our remaining older, less capable floaters.

Based on the analysis performed as of May 31, 2014 , we recorded an additional non-cash loss on impairment with respect to four other floaters totaling $991.5 million , of which $288.0 million related to ENSCO DS-2 which was removed from our portfolio of rigs marketed for contract drilling services during the fourth quarter. As a result, the ENSCO DS-2 impairment charge was reclassified to loss from discontinued operations, net in our condensed consolidated statement of operations for the nine-month period ended September 30, 2014 . The remaining $703.5 million impairment charge was included in loss on impairment in our condensed consolidated statement of operations for the nine-month period ended September 30, 2014 . We measured the fair value of these rigs by applying an income approach, using projected discounted cash flows. These valuations were based on unobservable inputs that require significant judgments for which there is limited information, including assumptions regarding future day rates, utilization, operating costs and capital requirements.

Goodwill

Our business consists of three operating segments: (1) Floaters, which includes our drillships and semisubmersible rigs, (2) Jackups and (3) Other, which consists of management services on rigs owned by third-parties. Our two reportable segments, Floaters and Jackups, provide one service, contract drilling. Our condensed consolidated balance sheet as of September 30, 2015 included goodwill of $192.6 million and $83.5 million allocated to the Jackups and Floaters segments, respectively.

We test goodwill for impairment on an annual basis or when events or changes in circumstances indicate that a potential impairment exists.  Our stock price declined significantly during the third quarter and into October, reaching a twelve-month low of $13.26 on October 2nd. During the third quarter, our stock traded between $13.42 and $22.21. The average stock price during the third quarter was $17.21 compared to an average stock price of $24.33 during the second quarter.

A sustained decline in our stock price is one of several qualitative factors we consider each quarter when evaluating whether events or changes in circumstances indicate it is more likely than not that a potential goodwill impairment exists. We concluded that the decline in stock price observed during the third quarter did not represent a sustained decline and that no triggering events occurred during the third quarter requiring an interim goodwill impairment test as of September 30, 2015.

We will perform our annual goodwill impairment test as of December 31, 2015. If our stock continues to trade at current levels during the remainder of 2015 and/or our operating performance or anticipated business outlook deteriorates, it is highly likely that our Floaters and/or Jackups reporting unit estimated fair value will decline below its carrying value, resulting in a goodwill impairment.

There are several factors that could have a negative impact on the fair value of our reporting units including, but not limited to:

•	declines in estimated market day rates and utilization due to greater-than-expected market pressures, downtime and other risks associated with offshore rig operations;	

•	sustained decline in our stock price;	

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•	changes in worldwide rig supply and demand, competition or technology, including changes as a result of delivery of newbuild drilling rigs;	

•	changes in future levels of drilling activity and expenditures, whether as a result of global capital markets and liquidity, prices of oil and natural gas or otherwise, which may cause us to idle or stack additional rigs;	

•	possible cancellation or suspension or termination (with or without cause) of drilling contracts as a result of economic conditions in the industry, mechanical difficulties, performance or other reasons;	

•	delays in actual contract commencement dates or the cancellation of drilling programs by operators;	

•	the outcome of litigation, legal proceedings, investigations or other claims or contract disputes resulting in significant cash outflows;	

•	governmental, regulatory, legislative and permitting requirements affecting drilling operations, including limitations on drilling locations (such as the Gulf of Mexico during hurricane season);	

•	increases in the market-participant risk-adjusted weighted average cost of capital ("WACC"); and	

•	declines in anticipated growth rates.	

Adverse changes in one or more of these factors could reduce the estimated fair value of our Floaters and/or Jackups reporting unit below its carrying value in future periods, resulting in a goodwill impairment.

Other Income (Expense)
 
The following table summarizes other income (expense) for the three-month and nine-month periods ended September 30, 2015 and 2014  (in millions):

																
 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
 	2015	 	2014	 	2015	 	2014	
Interest income	$	1.0		 	$	3.1		 	$	6.8		 	$	10.2		
Interest expense, net:			 	 		 	 	 	 	
Interest expense	(76.8	)	 	(56.0	)	 	(226.8	)	 	(167.6	)	
Capitalized interest	21.5		 	18.0		 	67.9		 	58.6		
 	(55.3	)	 	(38.0	)	 	(158.9	)	 	(109.0	)	
Other, net	1.9		 	(3.5	)	 	(28.3	)	 	.5		
 	$	(52.4	)	 	$	(38.4	)	 	$	(180.4	)	 	$	(98.3	)	
 
Interest expense for three-month and nine-month periods ended September 30, 2015 increased as compared to the prior year periods due to our September 2014 and March 2015 debt offerings. Interest expense capitalized during the three-month and nine-month periods ended September 30, 2015 increased as compared to the prior year periods due to an increase in the average outstanding amount of capital invested in newbuild construction.

Other, net for the nine-month period ended September 30, 2015 included a pre-tax loss of $33.5 million related to the extinguishment of our 2016 Notes and our MARAD obligations.         

Our functional currency is the U.S. dollar, and a portion of the revenues earned and expenses incurred by certain of our subsidiaries are denominated in currencies other than the U.S. dollar ("foreign currencies"). These transactions are remeasured in U.S. dollars based on a combination of both current and historical exchange rates. Net foreign currency exchange gains of $4.1 million and $5.6 million , inclusive of the change in offsetting fair value

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derivatives, were included in other, net for the three-month and nine-month periods ended September 30, 2015 , respectively. Net foreign currency exchange losses of $2.5 million and $900,000 , inclusive of the change in offsetting fair value derivatives, were included in other, net for the three-month and nine-month periods ended September 30, 2014 , respectively.

Provision for Income Taxes
 
Ensco plc, our parent company, is domiciled and resident in the U.K. Our subsidiaries conduct operations and earn income in numerous countries and are subject to the laws of taxing jurisdictions within those countries. The income of our non-U.K. subsidiaries is not subject to U.K. taxation. Income tax rates imposed in the tax jurisdictions in which our subsidiaries conduct operations vary, as does the tax base to which the rates are applied. In some cases, tax rates may be applicable to gross revenues, statutory or negotiated deemed profits or other bases utilized under local tax laws, rather than to net income. Our drilling rigs frequently move from one taxing jurisdiction to another to perform contract drilling services. In some instances, the movement of drilling rigs among taxing jurisdictions will involve the transfer of ownership of the drilling rigs among our subsidiaries. As a result of frequent changes in the taxing jurisdictions in which our drilling rigs are operated and/or owned, changes in the overall level of our income and changes in tax laws, our consolidated effective income tax rate may vary substantially from one reporting period to another.

Income tax expense for the three-month periods ended September 30, 2015 and 2014 was $33.2 million and $74.6 million , respectively. Income tax expense for the nine-month periods ended September 30, 2015 and 2014 was $168.9 million and $166.7 million , respectively.

Our consolidated effective income tax rate for the three-month and nine-month periods ended September 30, 2015 was 9.5% and 15.5% , respectively. Excluding the impact of discrete income tax items, our consolidated effective income tax rate was 12.6% and 16.4% , respectively. These discrete tax items were primarily attributable to the early termination of the ENSCO DS-4 drilling contract and the recognition of liabilities for unrecognized tax benefits associated with tax positions taken in prior years.

Excluding the impact of the discrete income tax items, our consolidated effective income tax rate for the three-month period ended September 30, 2014 was 13.9% . Excluding the impact of the $703.5 million loss on impairment and discrete income tax expense, our consolidated effective income tax rate for the nine-month period ended September 30, 2014 was 11.8% . The change in our effective tax rate for the three-month and nine-month periods is primarily attributable to the change in the estimated relative components of our earnings, excluding discrete items, generated in tax jurisdictions with higher tax rates and tax legislation enacted by the U.K. government that became effective on April 1, 2014.
    
Discontinued Operations

During 2014, management committed to a plan to sell six floaters and two jackups. ENSCO 5000, ENSCO 5001, ENSCO 5002, ENSCO 6000, ENSCO 7500, ENSCO DS-2, ENSCO 58 and ENSCO 90 were removed from our portfolio of rigs marketed for contract drilling services. The operating results from these rigs were included in (loss) income from discontinued operations, net in our condensed consolidated statements of operations for the three-month and nine-month periods ended September 30, 2015 and 2014 .

On a quarterly basis, we reassess the fair values of our "held for sale" rigs to determine whether any adjustments to the carrying values are necessary. We recorded pre-tax, non-cash losses on impairment of $25.6 million and $32.8 million for the three-month and nine-month periods ended September 30, 2015, respectively, as a result of declines in the estimated fair values of several "held for sale" rigs. The loss on impairment is included in (loss) income from discontinued operations, net in our condensed consolidated statement of operations for the three-month and nine-month periods ended September 30, 2015. We measured the fair value of "held for sale" rigs by applying a market approach, which was based on an unobservable third-party estimated price that would be received in exchange for the assets in an orderly transaction between market participants.

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During the nine-month period ended September 30, 2015, we sold ENSCO 5002 for net proceeds of $1.6 million . The proceeds from the sale were included in investing activities of discontinued operations in our condensed consolidated statement of cash flows for the nine-month period ended September 30, 2015 . We recognized a pre-tax gain of $1.6 million in connection with the disposal. The gain on sale was included in (loss) income from discontinued operations, net in our condensed consolidated statement of operations for the nine-month period ended September 30, 2015 .

During the fourth quarter of 2014, we completed the sale of ENSCO 5000 for net proceeds of $1.3 million . The remaining six rigs (ENSCO 5001, ENSCO 6000, ENSCO 7500, ENSCO DS-2, ENSCO 58 and ENSCO 90) are being actively marketed and were classified as "held for sale" on our September 30, 2015 condensed consolidated balance sheet.

During the three-month period ended September 30, 2014, we sold ENSCO 93, a jackup contracted to Pemex. In connection with the sale, we executed a charter agreement with the purchaser to continue operating the rig for the remainder of the Pemex contract, which ended in July 2015, less than one year from the date of sale. Our management services following the sale did not constitute significant ongoing involvement and therefore, the $1.2 million loss on sale was included in (loss) income from discontinued operations, net in our condensed consolidated statement of operations for the three-month and nine-month periods ended September 30, 2014. ENSCO 93 operating results were included in (loss) income from discontinued operations, net in our condensed consolidated statement of operations for the three-month and nine-month periods ended September 30, 2015 and 2014 . Net proceeds from the sale of $51.7 million were included in investing activities of discontinued operations in our consolidated statement of cash flows during the fourth quarter of 2014.

During the nine-month period ended September 30, 2014, we sold jackup rig ENSCO 85 for net proceeds of $64.4 million . The proceeds from the sale were included in investing activities of discontinued operations in our condensed consolidated statement of cash flows for the nine-month period ended September 30, 2014. We recognized a pre-tax gain of $10.3 million in connection with the disposal. The gain on sale and operating results were included in (loss) income from discontinued operations, net in our condensed consolidated statement of operations for the nine-month period ended September 30, 2014.

During the nine-month period ended September 30, 2014 , we sold ENSCO 69 and Pride Wisconsin for net proceeds of $32.2 million and recorded a pre-tax gain of $23.6 million . The gain on sale and operating results were included in (loss) income from discontinued operations, net in our condensed consolidated statement of operations for the nine-month period ended September 30, 2014 . The net proceeds from the sale were received in December 2013 and included in investing activities of discontinued operations in our condensed consolidated statement of cash flows for the year ended December 31, 2013.
        
LIQUIDITY AND CAPITAL RESOURCES

Although our business is cyclical, we have historically relied on our cash flow from continuing operations to meet liquidity needs and fund the majority of our cash requirements. We have maintained a strong financial position through the disciplined and conservative use of debt, which has provided us the ability to achieve future growth potential through acquisitions and newbuild rig construction. A substantial portion of our cash flow has been invested in the expansion and enhancement of our fleet of drilling rigs through newbuild construction and upgrade projects and the return of capital to shareholders through dividend payments. Periodically, we have accessed the capital markets as an additional source of liquidity.

We expect that cash flow generated in the near-term will primarily be used to fund capital expenditures, most notably milestone payments for newbuild rigs. During the first three quarters, our Board of Directors declared a $0.15 per share quarterly dividend, a $0.60 per share reduction from the prior year level. When evaluating dividend payment timing and amounts, our Board of Directors considers several factors, including our profitability, liquidity, financial condition, market outlook, reinvestment opportunities and capital requirements.

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During the nine-month period ended September 30, 2015 , our primary source of cash was $1.3 billion generated from operating activities of continuing operations. Our primary use of cash for the same period was $1.4 billion for the construction, enhancement and other improvement of our drilling rigs.

During the nine-month period ended September 30, 2014 , our primary sources of cash were $1.5 billion generated from operating activities of continuing operations and $ 1.2 billion in proceeds from our September debt issuance. Our primary uses of cash for the same period were $1.2 billion for the construction, enhancement and other improvement of our drilling rigs and  $526.7 million for dividend payments.

Cash Flow and Capital Expenditures
 
Our cash flow from operating activities of continuing operations and capital expenditures for the nine-month periods ended September 30, 2015 and 2014 were as follows (in millions):

								
 	2015	 	2014	
Cash flow from operating activities of continuing operations	$	1,274.6		 	$	1,512.7		
Capital expenditures	 		 	 		
New rig construction	$	1,132.1		 	$	574.5		
Rig enhancements	145.0		 	417.4		
Minor upgrades and improvements	168.7		 	253.2		
 	$	1,445.8		 	$	1,245.1		
    
Cash flow from operating activities of continuing operations declined $238.1 million , or 16% , for the nine-month period ended September 30, 2015 as compared to the prior year period. The decline primarily resulted from a $359.4 million decline in cash receipts from contract drilling services and a $28.0 million increase in cash payments for interest, partially offset by a $145.2 million decline in cash payments related to contract drilling expenses.

In July, we accepted delivery of ENSCO DS-8, which is committed under a long-term contract in Angola, and we agreed with the shipyard to delay the delivery of ENSCO DS-10, our only remaining floater under construction, until the first quarter of 2017. The final milestone payment for ENSCO DS-10 is due upon rig delivery.

In April, we accepted delivery of ENSCO 110, a premium jack-up rig, and ENSCO DS-9, an ultra-deepwater drillship. ENSCO 110 has commenced drilling operations under a long-term contract in the United Arab Emirates. ENSCO DS-9 is uncontracted following receipt of a notice of termination for convenience from our customer. Under the terms of the contract, our customer is obligated to pay us termination fees, which are payable monthly, of two years of the operating day rate (approximately $550,000), which may be partially defrayed should we re-contract the rig and/or mitigate certain costs. Our customer is also contractually obligated to reimburse certain costs that we incur as a direct result of the termination.
 
We currently have four rigs under construction, including one ultra-deepwater drillship, two premium jackup rigs and one ultra-premium harsh environment jackup rig.

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The following table summarizes the cumulative amount of contractual payments made as of September 30, 2015 for our rigs under construction and estimated timing of our remaining contractual payments (in millions):

																					
 	 	Cumulative Paid (1)	 	Remaining 2015	 	2016	 	2017	 	Total (2)	
ENSCO DS-10	 	$	233.9		 	$	2.3		 	$	9.3		 	$	310.9		 	$	556.4		
ENSCO 123	 	53.5		 	—		 	214.6		 	—		 	268.1		
ENSCO 140	 	78.4		 	79.1		 	39.2		 	—		 	196.7		
ENSCO 141	 	78.4		 	—		 	117.2		 	—		 	195.6		
 	 	$	444.2		 	$	81.4		 	$	380.3		 	$	310.9		 	$	1,216.8		

(1)  	Cumulative paid represents the aggregate amount of contractual payments made from commencement of the construction agreement through September 30, 2015 .	

(2)  	Total commitments are based on fixed-price shipyard construction contracts, exclusive of costs associated with commissioning, systems integration testing, project management and capitalized interest.	

The actual timing of these expenditures may vary based on the completion of various construction milestones, which are, to a large extent, beyond our control.

Based on our current projections, we expect capital expenditures during 2015 to include approximately $1.25 billion for newbuild construction, approximately $175 million for rig enhancement projects and approximately  $225 million for minor upgrades and improvements. Depending on market conditions and future opportunities, we may make additional capital expenditures to upgrade rigs for customer requirements and construct or acquire additional rigs.

Financing and Capital Resources
 
Our total debt, total capital and total debt to total capital ratios are summarized below (in millions, except percentages):

								
 	September 30,
2015	 	December 31,
2014	
Total debt	$	5,903.3		 	$	5,920.4		
Total capital*	$	14,914.4		 	$	14,135.4		
Total debt to total capital	39.6	%	 	41.9	%	
  *Total capital consists of total debt and Ensco shareholders' equity.

 Senior Notes and Debentures

During the first quarter, we issued $700.0 million aggregate principal amount of unsecured 5.20% senior notes due 2025 (the “2025 Notes”) at a discount of $2.6 million and $400.0 million aggregate principal amount of unsecured 5.75% senior notes due 2044 (the “New 2044 Notes”) at a discount of $18.7 million in a public offering. Interest on the 2025 Notes is payable semiannually on March 15 and September 15 of each year commencing September 15, 2015. Interest on the New 2044 Notes is payable semiannually on April 1 and October 1 of each year commencing on April 1, 2015.

The New 2044 Notes and the $625.0 million aggregate principal amount of 5.75% senior notes due 2044 that we issued during September 2014 are treated as a single series of debt securities (collectively, the “2044 Notes”) under the indenture governing the 2044 Notes.

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As of September 30, 2015 , in addition to the 2025 Notes and 2044 Notes, we had outstanding $500.0 million aggregate principal amount of unsecured 8.5% senior notes due 2019, $900.0 million aggregate principal amount of unsecured 6.875% senior notes due 2020, $1.5 billion aggregate principal amount of unsecured 4.7% senior notes due 2021, $625.0 million aggregate principal amount of unsecured 4.50% senior notes due 2024, and $300.0 million aggregate principal amount of unsecured 7.875% senior notes due 2040. As of September 30, 2015 , we also had outstanding $150.0 million aggregate principal amount of unsecured 7.2% debentures due 2027. We make semiannual interest payments on each of the aforementioned notes and debentures.

Redemption of 2016 Senior Notes and MARAD Obligations

During 2011, we issued $1.0 billion of 3.25% senior notes with a 2016 maturity (the “2016 Notes”). In March 2015, we commenced a cash tender offer (the “Tender Offer”) for the $1.0 billion outstanding aggregate principal amount of our 2016 Notes. Senior notes totaling $854.6 million were settled on March 12, 2015 for $878.0 million (excluding accrued interest) using a portion of the net proceeds from the 2025 Notes and New 2044 Notes public offering. Under the terms of the Tender Offer, we paid a premium totaling approximately $23.4 million , which approximates the “make-whole” premium that would have been required had we elected to redeem the debt. The premium was recorded as a loss on debt extinguishment and included in other, net in our condensed consolidated statement of operations for the nine-month period ended September 30, 2015 . Additionally, we wrote-off $1.7 million of unamortized debt discount and $1.5 million of unamortized debt issuance costs associated with the $854.6 million of notes tendered, resulting in a total pre-tax loss on debt extinguishment of $26.6 million for the nine-month period ended September 30, 2015 .

Concurrent with the settlement of the Tender Offer, we exercised our right to redeem the remaining 2016 Notes. In April 2015, we completed the redemption of the remaining $145.4 million of 2016 Notes using a portion of the net proceeds from the 2025 Notes and New 2044 Notes. The redemption payment included a "make-whole" premium of $3.8 million which was recorded as a loss on debt extinguishment and included in other, net in our condensed consolidated statement of operations for the nine-month period ended September 30, 2015 .

In April 2015, we used the remaining net proceeds from our March 2015 public offering, together with cash on hand, to redeem $51.0 million of our 4.33% MARAD notes due 2016 and our 4.65% MARAD bonds due 2020 (the “MARAD Obligations”). We incurred additional losses on debt extinguishment of $3.1 million , which were included in other, net in our condensed consolidated statement of operations for the nine-month period ended September 30, 2015 . These losses primarily consisted of a "make-whole" premium.

In July 2015, we redeemed the remaining $14.3 million aggregate principal amount of the MARAD Obligations.

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Revolving Credit

We have a $2.25 billion senior unsecured revolving credit facility with a syndicate of banks to be used for general corporate purposes with a term expiring on September 30, 2019 (the "Credit Facility"). Advances under the Credit Facility bear interest at Base Rate or LIBOR plus an applicable margin rate (currently 0.125% per annum for Base Rate advances and 1.125% per annum for LIBOR advances) depending on our credit ratings. Amounts repaid may be re-borrowed during the term of the Credit Facility. We are required to pay a quarterly commitment fee (currently 0.125% per annum) on the undrawn portion of the $2.25 billion commitment which is also based on our credit ratings.

In October 2015, Moody's downgraded our senior unsecured rating one notch to Baa2 from Baa1. The applicable margin rate for advances under our Credit Facility and the quarterly commitment fee percentage did not change as a result of this downgrade. A further reduction in our credit rating of one notch by Moody's or a reduction in our credit rating of one notch by Standard & Poor's would increase our applicable margin rate by 0.125% per annum and our quarterly commitment fee by 0.025% per annum under our Credit Facility.

In addition to other customary restrictive covenants, the Credit Facility requires us to maintain a total debt to total capitalization ratio that is less than or equal to a specified percentage. In March 2015, we amended the Credit Facility to increase the percentage from 50% to 60% .
    
We have the right, subject to receipt of commitments from new or existing lenders, to increase the commitments under the Credit Facility to an aggregate amount of up to $2.75 billion . We had no amounts outstanding under the Credit Facility as of September 30, 2015 and December 31, 2014 .
      
Commercial Paper
 
We participate in a commercial paper program with three commercial paper dealers pursuant to which we may issue, on a private placement basis, unsecured commercial paper notes up to a maximum aggregate amount outstanding at any time of $2.25 billion . Amounts issued under the commercial paper program are supported by the available and unused committed capacity under our credit facility. As a result, amounts issued under the commercial paper program will be limited by the amount of our available and unused committed capacity under our credit facility. The proceeds of such financings will be used for capital expenditures and other general corporate purposes. The commercial paper will bear interest at rates that vary based on market conditions and the ratings assigned by credit rating agencies at the time of issuance. The commercial paper maturities will vary but may not exceed 364 days from the date of issuance. The commercial paper is not redeemable or subject to voluntary prepayment by us prior to maturity. We had no amounts outstanding under our commercial paper program as of September 30, 2015 and December 31, 2014 . The aforementioned reduction in our senior unsecured debt rating did not impact our commercial paper rating.

Other Financing

We filed an automatically effective shelf registration statement on Form S-3 with the U.S. Securities and Exchange Commission ("SEC") on January 15, 2015, which provides us the ability to issue debt securities, equity securities, guarantees and/or units of securities in one or more offerings. The registration statement, as amended, expires during 2018.

During 2013, our shareholders approved a new share repurchase program. Subject to certain provisions under English law, including the requirement of Ensco plc to have sufficient distributable reserves, we may purchase shares up to a maximum of $2.0 billion in the aggregate under the program, but in no case more than 35.0 million shares. As of September 30, 2015 , no shares have been repurchased under the share repurchase program. The program terminates during 2018.

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Other Commitments

As of September 30, 2015 , we were contingently liable for an aggregate amount of $95.8 million under outstanding letters of credit and surety bonds which guarantee our performance as it relates to our drilling contracts, contract bidding, customs duties, tax appeals and other obligations in various jurisdictions. Obligations under these letters of credit and surety bonds are not normally called, as we typically comply with the underlying performance requirement. As of September 30, 2015 , we had not been required to make any collateral deposits with respect to these agreements.

Liquidity
 
Our liquidity position is summarized in the table below (in millions, except ratios):

								
 	September 30,
2015	 	December 31,
2014	
Cash and cash equivalents	$	240.4		 	$	664.8		
Short-term investments	$	850.0		 	$	757.3		
Working capital	$	1,609.5		 	$	1,830.2		
Current ratio	3.0		 	2.7		

We expect to fund our short-term liquidity needs, including contractual obligations and anticipated capital expenditures, as well as dividends or working capital requirements, from our cash and cash equivalents, short-term investments, operating cash flows, funds borrowed under our commercial paper program and, if necessary, funds borrowed under our revolving credit facility.

We expect to fund our long-term liquidity needs, including contractual obligations, anticipated capital expenditures and dividends, from our operating cash flows and, if necessary, funds borrowed under our revolving credit facility or other future financing arrangements.

We may decide to access debt and/or equity markets to raise additional capital or increase liquidity as necessary. 

Effects of Climate Change and Climate Change Regulation
 
Greenhouse gas ("GHG") emissions have increasingly become the subject of international, national, regional, state and local attention. During 2009, the United States Environmental Protection Agency (the "EPA") officially published its findings that emissions of carbon dioxide, methane and other GHGs present an endangerment to human health and the environment because emissions of such gases are, according to the EPA, contributing to warming of the earth's atmosphere and other climatic changes. These EPA findings allowed the agency to proceed with the adoption and implementation of regulations to restrict GHG emissions under existing provisions of the Clean Air Act that establish Prevention of Significant Deterioration ("PSD") construction and Title V operating permit reviews for certain large stationary sources that are potential major sources of GHG emissions. Facilities required to obtain PSD permits for their GHG emissions also will be required to meet "best available control technology" standards to be established by the states or, in some cases, the EPA, on a case-by-case basis. The EPA has also adopted rules requiring annual monitoring and reporting of GHG emissions from specified sources in the United States, including, among others, certain onshore and offshore oil and natural gas production facilities.

The Companies Act 2006 (Strategic and Directors' Reports) Regulations 2013 now requires all quoted U.K. companies to report their annual GHG emissions in the company's directors' report. Additionally, in recent years, cap and trade initiatives to limit GHG emissions have been introduced in the European Union. Similarly, a number of bills related to climate change have been introduced in the United States Congress. If these or similar bills were to be adopted, such legislation could adversely impact many industries. However, it appears unlikely that comprehensive federal climate legislation will be passed by the United States Congress in the foreseeable future. In the absence of

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federal legislation, almost half of the states have begun to address GHG emissions, primarily through the development or planned development of emission inventories or regional GHG cap and trade programs. Future regulation of GHG emissions could occur pursuant to future treaty obligations, statutory or regulatory changes or new climate change legislation in the jurisdictions in which we operate. If the United States Congress undertakes comprehensive tax reform in the coming year, it is possible that such reform may include a carbon tax, which could impose additional direct costs on operations and reduce demand for refined products. Depending on the particular program, we, or our customers, could be required to control GHG emissions or to purchase and surrender allowances for GHG emissions resulting from our operations. It is uncertain whether any of these initiatives will be implemented. If such initiatives are implemented, we do not believe that such initiatives would have a direct, material adverse effect on our financial condition, operating results or cash flows in a manner different than our competitors.

Restrictions on GHG emissions or other related legislative or regulatory enactments could have an indirect effect in those industries that use significant amounts of petroleum products, which could potentially result in a reduction in demand for petroleum products and, consequently, our offshore contract drilling services. We are currently unable to predict the manner or extent of any such effect. Furthermore, one of the long-term physical effects of climate change may be an increase in the severity and frequency of adverse weather conditions, such as hurricanes, which may increase our insurance costs or risk retention, limit insurance availability or reduce the areas in which, or the number of days during which, our customers would contract for our drilling rigs in general and in the Gulf of Mexico in particular. We are currently unable to predict the manner or extent of any such effect.

MARKET RISK
 
We use derivatives to reduce our exposure to foreign currency exchange rate risk. Our functional currency is the U.S. dollar. As is customary in the oil and gas industry, a majority of our revenues and expenses are denominated in U.S. dollars; however, a portion of the revenues earned and expenses incurred by certain of our subsidiaries are denominated in currencies other than the U.S. dollar. We maintain a foreign currency exchange rate risk management strategy that utilizes derivatives to reduce our exposure to unanticipated fluctuations in earnings and cash flows caused by changes in foreign currency exchange rates.  

We utilize cash flow hedges to hedge forecasted foreign currency denominated transactions, primarily to reduce our exposure to foreign currency exchange rate risk on future expected contract drilling expenses and capital expenditures denominated in various foreign currencies. We predominantly structure our drilling contracts in U.S. dollars, which significantly reduces the portion of our cash flows and assets denominated in foreign currencies. As of September 30, 2015 , we had cash flow hedges outstanding to exchange an aggregate $329.9 million for various foreign currencies.
We have net assets and liabilities denominated in numerous foreign currencies and use various strategies to manage our exposure to changes in foreign currency exchange rates. We occasionally enter into derivatives that hedge the fair value of recognized foreign currency denominated assets or liabilities, thereby reducing exposure to earnings fluctuations caused by changes in foreign currency exchange rates. We do not designate such derivatives as hedging instruments. In these situations, a natural hedging relationship generally exists whereby changes in the fair value of the derivatives offset changes in the fair value of the underlying hedged items. As of September 30, 2015 , we held derivatives not designated as hedging instruments to exchange an aggregate $155.5 million for various foreign currencies.
If we were to incur a hypothetical 10% adverse change in foreign currency exchange rates, net unrealized losses associated with our foreign currency denominated assets and liabilities as of September 30, 2015 would approximate $23.0 million. Approximately $13.6 million of these unrealized losses would be offset by corresponding gains on the derivatives utilized to offset changes in the fair value of net assets and liabilities denominated in foreign currencies.

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We utilize derivatives and undertake foreign currency exchange rate hedging activities in accordance with our established policies for the management of market risk. We mitigate our credit risk relating to derivative counterparties through a variety of techniques, including transacting with multiple, high-quality financial institutions, thereby limiting our exposure to individual counterparties and by entering into ISDA Master Agreements, which include provisions for a legally enforceable master netting agreement, with almost all of our derivative counterparties. The terms of the ISDA agreements may also include credit support requirements, cross default provisions, termination events, or set-off provisions. Legally enforceable master netting agreements reduce credit risk by providing protection in bankruptcy in certain circumstances and generally permitting the closeout and netting of transactions with the same counterparty upon the occurrence of certain events.

We do not enter into derivatives for trading or other speculative purposes. We believe that our use of derivatives and related hedging activities reduces our exposure to foreign currency exchange rate risk and does not expose us to material credit risk or any other material market risk. All of our derivatives mature during the next 18 months . See "Note 3 - Derivative Instruments" to our condensed consolidated financial statements for additional information on our derivative instruments.

CRITICAL ACCOUNTING POLICIES

The preparation of financial statements and related disclosures in conformity with accounting principles generally accepted in the United States of America requires our management to make estimates, judgments and assumptions that affect the amounts reported in our condensed consolidated financial statements and accompanying notes. Our significant accounting policies are included in Note 1 to our audited consolidated financial statements for the year ended December 31, 2014 included in our annual report on Form 10-K filed with the SEC on March 2, 2015 . These policies, along with our underlying judgments and assumptions made in their application, have a significant impact on our condensed consolidated financial statements.

We identify our critical accounting policies as those that are the most pervasive and important to the portrayal of our financial position and operating results and that require the most difficult, subjective and/or complex judgments by management regarding estimates in matters that are inherently uncertain. Our critical accounting policies are those related to property and equipment, impairment of long-lived assets and goodwill and income taxes. For a discussion of the critical accounting policies and estimates that we use in the preparation of our condensed consolidated financial statements, see "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations - Critical Accounting Policies and Estimates" in Part II of our annual report on Form 10-K for the year ended December 31, 2014 . During the quarter ended September 30, 2015 , there were no material changes to the judgments, assumptions or policies upon which our critical accounting estimates are based.

New Accounting Pronouncements

During 2015, the Financial Accounting Standards Board issued Accounting Standards Update 2015-03, Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs , as updated by Update 2015-15, Interest - Imputation of Interest (Subtopic 835-30 ): Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements - Amendments to SEC Paragraphs Pursuant to Staff Announcements at June 18, 2015 EITF Meeting , which require that debt issuance costs related to a recognized debt liability be presented on the balance sheet as a direct deduction from the carrying amount of the related debt liability, consistent with debt discounts. Debt issuance costs related to line-of-credit arrangements may be presented as an asset regardless of whether there are any outstanding borrowings on the arrangement. These Updates are effective for annual and interim periods for fiscal years beginning after December 15, 2015. Early application is permitted. We will adopt these accounting standards on a retrospective basis effective January 1, 2016. There will be no impact to the manner in which debt issuance costs are amortized in our condensed consolidated financial statements.

During 2015, the Financial Accounting Standards Board issued Accounting Standards Update 2015-11, Inventory (Topic 330 ): Simplifying the Measurement of Inventory , which requires that inventory be measured at the lower of cost and net realizable value. Net realizable value is the estimated selling price in the ordinary course of

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business, less reasonably predictable costs of completion, disposal and transportation. Update 2015-11 is effective for annual and interim periods for fiscal years beginning after December 15, 2016. We will adopt the accounting standard on a prospective basis effective January 1, 2017. We do not expect the adoption to have a material effect on our consolidated financial statements.

During 2014, the Financial Accounting Standards Board issued Accounting Standards Update 2014-09, Revenue from Contracts with Customers (Topic 606) ("Update 2014-09"), which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. In July 2015, the Financial Accounting Standards Board voted to delay the effective date one year. The Update is now effective for annual and interim periods for fiscal years beginning after December 15, 2017, though companies have an option of adopting the standard for fiscal years beginning after December 15, 2016. The Update will replace most existing revenue recognition guidance in U.S. GAAP and may be adopted using a retrospective, modified retrospective or prospective with cumulative catch-up approach. We are currently evaluating the effect that Update 2014-09 will have on our condensed consolidated financial statements and related disclosures.

Item 3.    Quantitative and Qualitative Disclosures About Market Risk
 
Information required under Item 3. has been incorporated into "Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations - Market Risk."

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Item 4.    Controls and Procedures
 
Based on their evaluation as of the end of the period covered by this quarterly report on Form 10-Q, our Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures, as defined in Rule 13a-15 under the Securities Exchange Act of 1934, are effective.
   
During the fiscal quarter ended September 30, 2015 , there were no changes in our internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II - OTHER INFORMATION

Item 1.    Legal Proceedings
 
Brazil Internal Investigation

Pride International, Inc. (“Pride”), a company we acquired in 2011, commenced drilling operations in Brazil during 2001 and, in 2008, entered into a drilling contract with Petrobras for DS-5, a rig Pride had ordered from a shipyard in South Korea.

Beginning in 2006, Pride conducted periodic compliance reviews of its business with Petrobras, and, after the acquisition, Ensco conducted similar compliance reviews, the most recent of which commenced in early 2015 after media reports were released regarding ongoing investigations of various kickback and bribery schemes in Brazil involving Petrobras.

While conducting our compliance review, we became aware of an internal audit report by Petrobras alleging irregularities in relation to DS-5 - specifically, that Petrobras overpaid under the drilling contract. We believe this allegation is inaccurate, as publicly available data show that the contract’s compensation terms were in line with other contracts signed by Petrobras and other customers with our competitors during the same timeframe (late 2007 and early 2008). We provided this information to Petrobras in June 2015. We continue to operate DS-5 under its existing contract. In addition, all our other rigs contracted to Petrobras - ENSCO 6001, 6002, 6003 and 6004 - continue to work under their contracts.

Upon learning of the Petrobras internal audit report, our Audit Committee appointed independent counsel to lead an investigation into the alleged irregularities. Subsequently, the internal audit report and the alleged irregularities were referenced in Brazilian court documents connected to the prosecution of former Petrobras directors and employees as well as certain other third parties, including a former marketing consultant who provided services to Pride in connection with DS-5. The former marketing consultant entered into a plea agreement with the Brazil authorities. This plea agreement was referenced in a Brazilian court proceeding relating to a project for a competitor having no connection to us. This court proceeding document states that another court action would be made public in due course with respect to DS-5; to date no further proceedings relating to DS-5 have been released.

Independent counsel, under the direction of our Audit Committee, has substantially completed the investigation of these allegations by reviewing and analyzing available documents and correspondence and interviewing current and former employees involved in the contracting of DS-5 as well as the former marketing consultant. To date, our Audit Committee has found no evidence that Pride or Ensco or any of their current or former employees were aware of or involved in any wrongdoing, and our Audit Committee has found no evidence linking Ensco or Pride to any illegal acts committed by our former marketing consultant. Although the investigation is substantially complete, we cannot predict whether any new or additional allegations will be made and what impact those allegations will have on the timing or conclusions of the investigation. Our Audit Committee will examine any new or additional allegations and the facts and circumstances surrounding them.

To date, we have not been contacted by Brazil authorities, and no authority has alleged wrongdoing by Pride or Ensco or any of their current or former employees. In June and July 2015, we voluntarily contacted the SEC and the U.S. Department of Justice (“DOJ”), respectively, to advise them of this matter and our Audit Committee’s independent investigation, and we provided them an update on the investigation in September 2015. We cannot predict whether any governmental authority will seek to investigate this matter, or if a proceeding were opened, the scope or ultimate outcome of any such investigation. If the SEC or DOJ determines that violations of the U.S. Foreign Corrupt Practices Act of 1977 (the "FCPA") have occurred, or if any governmental authority determines that we have violated applicable anti-bribery laws, they could seek civil and criminal sanctions, including monetary penalties, against us, as well as changes to our business practices and compliance programs, any of which could have a material adverse effect

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on our business and financial condition. Our customers and other parties we do business with could seek to take actions adverse to our interests. Further, investigating and resolving such allegations is expensive and could consume significant management time and attention.

Pride FCPA Investigation

During 2010, Pride and its subsidiaries resolved their previously disclosed investigations into potential violations of the FCPA with the DOJ and SEC. The settlement with the DOJ included a deferred prosecution agreement (the "DPA") between Pride and the DOJ and a guilty plea by Pride Forasol, S.A.S., one of Pride’s subsidiaries, to FCPA-related charges. During 2012, the DOJ moved to (i) dismiss the charges against Pride and end the DPA one year prior to its scheduled expiration; and (ii) terminate the unsupervised probation of Pride Forasol, S.A.S. The Court granted the motions.

     Pride has received preliminary inquiries from governmental authorities of certain countries referenced in its settlements with the DOJ and SEC. We could face additional fines, sanctions and other penalties from authorities in these and other relevant jurisdictions, including prohibition of our participating in or curtailment of business operations in certain jurisdictions and the seizure of rigs or other assets. At this stage of such inquiries, we are unable to determine what, if any, legal liability may result. Our customers in certain jurisdictions could seek to impose penalties or take other actions adverse to our business. We could also face other third-party claims by directors, officers, employees, affiliates, advisors, attorneys, agents, stockholders, debt holders, or other stakeholders. In addition, disclosure of the subject matter of the investigations and settlements could adversely affect our reputation and our ability to obtain new business or retain existing business, to attract and retain employees and to access the capital markets.

We cannot currently predict what, if any, actions may be taken by any other applicable government or other authorities or our customers or other third parties or the effect any such actions may have on our financial position, operating results or cash flows.

Asbestos Litigation
 
We and certain subsidiaries have been named as defendants, along with numerous third-party companies as co-defendants, in multi-party lawsuits filed in Mississippi and Louisiana by approximately  60  plaintiffs. The lawsuits seek an unspecified amount of monetary damages on behalf of individuals alleging personal injury or death, primarily under the Jones Act, purportedly resulting from exposure to asbestos on drilling rigs and associated facilities during the 1960s through the 1980s.
    
During 2013, we reached an agreement in principle with  58  plaintiffs to settle lawsuits filed in Mississippi for a nominal amount. A special master reviewed all  58  cases and made an allocation of settlement funds among the parties.  The District Court Judge reviewed the allocations and accepted the special master’s recommendations and approved the settlements.  The settlement documents for most of the individual plaintiffs have been processed and the cases have been dismissed. The settlement documents for approximately 18 individual plaintiffs are continuing to be processed.

We intend to vigorously defend against the remaining claims and have filed responsive pleadings preserving all defenses and challenges to jurisdiction and venue. However, discovery is still ongoing and, therefore, available information regarding the nature of all pending claims is limited. At present, we cannot reasonably determine how many of the claimants may have valid claims under the Jones Act or estimate a range of potential liability exposure, if any. 
    
In addition to the pending cases in Mississippi and Louisiana, we have other asbestos or lung injury claims pending against us in litigation from time to time in other jurisdictions. Although we do not expect final disposition of these asbestos or lung injury lawsuits to have a material adverse effect upon our financial position, operating results or cash flows, there can be no assurances as to the ultimate outcome of the lawsuits.

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Environmental Matters
 
We are currently subject to pending notices of assessment relating to spills of drilling fluids, oil, brine, chemicals, grease or fuel from drilling rigs operating offshore Brazil from 2008 to 2015, pursuant to which the governmental authorities have assessed, or are anticipated to assess, fines in an aggregate amount of approximately $150,000 . We have contested these notices and appealed certain adverse decisions and are awaiting decisions in these cases. Although we do not expect final disposition of these assessments to have a material adverse effect on our financial position, operating results or cash flows, there can be no assurance as to the ultimate outcome of these assessments. A $150,000 liability related to these matters was included in accrued liabilities and other on our condensed consolidated balance sheet as of September 30, 2015 .
 
We currently are subject to a pending administrative proceeding initiated during 2009 by a Spanish government authority seeking payment in an aggregate amount of approximately $3.0 million , for an alleged environmental spill originating from ENSCO 5006 while it was operating offshore Spain. Our customer has posted guarantees with the Spanish government to cover potential penalties. Additionally, we expect to be indemnified for any payments resulting from this incident by our customer under the terms of the drilling contract. A criminal investigation of the incident was initiated during 2010 by a prosecutor in Tarragona, Spain, and the administrative proceedings have been suspended pending the outcome of this investigation. We do not know at this time what, if any, involvement we may have in this investigation.
 
We intend to vigorously defend ourselves in the administrative proceeding and any criminal investigation. At this time, we are unable to predict the outcome of these matters or estimate the extent to which we may be exposed to any resulting liability. Although we do not expect final disposition of this matter to have a material adverse effect on our financial position, operating results or cash flows, there can be no assurance as to the ultimate outcome of the proceedings.

Other Matters

In addition to the foregoing, we are named defendants or parties in certain other lawsuits, claims or proceedings incidental to our business and are involved from time to time as parties to governmental investigations or proceedings, including matters related to taxation, arising in the ordinary course of business. Although the outcome of such lawsuits or other proceedings cannot be predicted with certainty and the amount of any liability that could arise with respect to such lawsuits or other proceedings cannot be predicted accurately, we do not expect these matters to have a material adverse effect on our financial position, operating results or cash flows.

Item 1A.    Risk Factors 

There are numerous factors that affect our business and results of operations, many of which are beyond our control. In addition to information set forth in this quarterly report, you should 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 annual report on Form 10-K for the year ended December 31, 2014 , which contains descriptions of significant risks that might cause our actual results of operations in future periods to differ materially from those currently anticipated or expected. There have been no material changes from the risks previously disclosed in our annual report on Form 10-K for the year ended December 31, 2014 .

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Item 2.    Unregistered Sales of Equity Securities and Use of Proceeds
 
The table below provides a summary of our repurchases of equity securities during the three-month period ended September 30, 2015 :

Issuer Purchases of Equity Securities	

 

 

Period	Total Number of Securities Purchased (1)	 	Average Price Paid per Security	 	Total Number of Securities Purchased as Part of Publicly Announced Plans or Programs  (2)   	 	Approximate Dollar Value of Securities that May Yet Be Purchased Under Plans or Programs	
 	 	 	 	 	 	 	 	
July 1 - July 31	890		 	$	20.36		 	—		 	$	2,000,000		
August 1 - August 31	8,824		 	$	16.50		 	—		 	$	2,000,000		
September 1 - September 30	8,175		 	$	16.34		 	—		 	$	2,000,000		
Total 	17,889		 	$	16.62		 	—		 	 		

(1)  	During the three-month period ended September 30, 2015 , equity securities were repurchased from employees and non-employee directors by an affiliated employee benefit trust in connection with the settlement of income tax withholding obligations arising from the vesting of share awards.  Such securities remain available for re-issuance in connection with employee share awards.	

(2)  	During 2013, our shareholders approved a new share repurchase program. Subject to certain provisions under English law, including the requirement of Ensco plc to have sufficient distributable reserves, we may purchase up to a maximum of $2.0 billion in the aggregate under the program, but in no case more than 35.0 million shares. As of September 30, 2015 , no shares have been repurchased under the share repurchase program. The program terminates during 2018.	

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Item 6.    Exhibits

	
			
Exhibit Number	 	Exhibit	
*12.1	 	Computation of ratio of earnings to fixed charges.	
*15.1	 	Letter regarding unaudited interim financial information.	
*31.1	 	Certification of the Chief Executive Officer of Registrant Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.	
*31.2	 	Certification of the Chief Financial Officer of Registrant Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.	
**32.1	 	Certification of the Chief Executive Officer of Registrant Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.	
**32.2	 	Certification of the Chief Financial Officer of Registrant Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.	
*101.INS	 	XBRL Instance Document	
*101.SCH	 	XBRL Taxonomy Extension Schema	
*101.CAL	 	XBRL Taxonomy Extension Calculation Linkbase	
*101.DEF	 	XBRL Taxonomy Extension Definition Linkbase	
*101.LAB	 	XBRL Taxonomy Extension Label Linkbase	
*101.PRE	 	XBRL Taxonomy Extension Presentation Linkbase	
*   Filed herewith.
** Furnished herewith.

67

SIGNATURES
 
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	
				
 	 	 	Ensco plc	

Date: 	October 29, 2015	 	/s/ JAMES W. SWENT III	
 	 	 	James W. Swent III
Executive Vice President and
Chief Financial Officer
(principal financial officer)	
 	 	 	 	
 	 	 	/s/ JONATHAN H. BAKSHT 	
 	 	 	Jonathan H. Baksht
Vice President - Finance	
 	 	 	 	
 	 	 	/s/ ROBERT W. EDWARDS III    	
 	 	 	Robert W. Edwards III
Controller
(principal accounting officer)	

68

INDEX TO EXHIBITS

			
Exhibit Number	 	Exhibit	
*12.1	 	Computation of ratio of earnings to fixed charges.	
*15.1	 	Letter regarding unaudited interim financial information.	
*31.1	 	Certification of the Chief Executive Officer of Registrant Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.	
*31.2	 	Certification of the Chief Financial Officer of Registrant Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.	
**32.1	 	Certification of the Chief Executive Officer of Registrant Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.	
**32.2	 	Certification of the Chief Financial Officer of Registrant Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.	
*101.INS	 	XBRL Instance Document	
*101.SCH	 	XBRL Taxonomy Extension Schema	
*101.CAL	 	XBRL Taxonomy Extension Calculation Linkbase	
*101.DEF	 	XBRL Taxonomy Extension Definition Linkbase	
*101.LAB	 	XBRL Taxonomy Extension Label Linkbase	
*101.PRE	 	XBRL Taxonomy Extension Presentation Linkbase	
*   Filed herewith.
** Furnished herewith.

 

69

ENSCO PLC AND SUBSIDIARIES
Statement of Calculation of Ratios of Earnings to Fixed Charges
(In millions, except ratios)
(Unaudited)

																								
 	Nine Months Ended September 30, 2015	 	Year Ended December 31,	
 		 	2014	 	2013	 	2012	 	2011	 	2010	
 	 	 	 	
Earnings	 	 	 	 	 		 	 		 	 		 	 		
Income (loss) from continuing operations before income tax	$	1,086.9		 	$	(2,548.8	)	 	$	1,633.2		 	$	1,304.7		 	$	673.5		 	$	494.7		
Fixed charges deducted from income from continuing operations	241.6		 	260.4		 	245.3		 	247.3		 	187.6		 	26.6		
Amortization of capitalized interest	13.5		 	17.0		 	13.3		 	12.3		 	6.7		 	4.5		
Less:	 	 	 	 	 	 	 	 	 	 	 	
Income from continuing operations before income tax attributable to noncontrolling interests	(8.7	)	 	(15.5	)	 	(9.7	)	 	(7.4	)	 	(5.8	)	 	(7.7	)	
Interest capitalized	(67.9	)	 	(78.2	)	 	(67.7	)	 	(105.8	)	 	(80.2	)	 	(21.3	)	
 	1,265.4		 	(2,365.1	)	 	1,814.4		 	1,451.1		 	781.8		 	496.8		
 	 	 	 	 	 	 	 	 	 	 	 	
Fixed Charges	 	 	 	 	 	 	 	 	 	 	 	
Interest on indebtedness, including amortization of deferred loan costs	158.9		 	161.4		 	158.8		 	123.6		 	95.9		 	—		
Estimated interest within rental expense	14.8		 	20.8		 	18.8		 	17.9		 	11.5		 	5.3		
Fixed charges deducted from income from continuing operations	173.7		 	182.2		 	177.6		 	141.5		 	107.4		 	5.3		
Interest capitalized	67.9		 	78.2		 	67.7		 	105.8		 	80.2		 	21.3		
Total	$	241.6		 	$	260.4		 	$	245.3		 	$	247.3		 	$	187.6		 	$	26.6		
 	 	 			 			 			 			 			
Ratio of Earnings to Fixed Charges	5.2		 	(a)		 	7.4		 	5.9		 	4.2		 	18.7		

(a)	For the year ended December 31, 2014, our earnings were inadequate to cover our fixed charges by $2,625.5 million. Net loss from continuing operations before income taxes of $2,548.8 million for the year ended December 31, 2014 included a non-cash loss on impairment of $4,218.7 million recorded during the period.	

October 29, 2015

Ensco plc
London, England
 
Re: Registration Statements on Form S-8 (Nos. 333-174611, 333-58625, 033-40282, 333-97757, 333-125048, 333-156530, 333-181593 and 333-204294) and Form S-3 (No. 333-201532)
With respect to the subject registration statements, we acknowledge our awareness of the use therein of our report dated October 29, 2015 related to our review of interim financial statements.

Pursuant to Rule 436 under the Securities Act of 1933 (the Act), such report is not considered part of a registration statement prepared or certified by an independent registered public accounting firm, or a report prepared or certified by an independent registered public accounting firm within the meaning of Sections 7 and 11 of the Act.

Very truly yours,

/s/ KPMG LLP

Houston, Texas

 

Exhibit 31.1
CERTIFICATION

I, Carl G. Trowell, certify that:

1.	I have reviewed this report on Form 10-Q for the fiscal quarter ending September 30, 2015 of Ensco plc;	

2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;	

3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;	

4.	The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:	

a.	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;	

b.	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;	

c.	Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and	

d.	Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and	

5.	The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):	

a.	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and	

b.	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.	

	
				
 	 	Dated:	October 29, 2015	
 	 	 	 	
 	 	/s/ Carl G. Trowell	
 	 	Carl G. Trowell
Chief Executive Officer and President	

Exhibit 31.2
CERTIFICATION

I, James W. Swent III, certify that:

1.	I have reviewed this report on Form 10-Q for the fiscal quarter ending September 30, 2015 of Ensco plc;	

2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;	

3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;	

4.	The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:	

a.	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;	

b.	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;	

c.	Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and	

d.	Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and	

5.	The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):	

a.	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and	

b.	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.	

	
				
 	 	Dated:  	October 29, 2015	
 	 	 	 	
 	 	/s/ James W. Swent III	
 	 	James W. Swent III
Executive Vice President and
Chief Financial Officer

Exhibit 32.1
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Ensco plc (the "Company") on Form 10-Q for the period ending September 30, 2015 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Carl G. Trowell, Chief Executive Officer and President of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002 (the "Act"), that, to my knowledge: 

(1)	The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 (the "Exchange Act"); and	
		
(2)	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.	

	
			
/s/ Carl G. Trowell	 	
Carl G. Trowell
Chief Executive Officer and President	 	
Dated:  	October 29, 2015	 	

The foregoing certification is being furnished solely pursuant to § 906 of the Act and Rule 13a-14(b) promulgated under the Exchange Act and is not being filed as part of the Report or as a separate disclosure document.

Exhibit 32.2
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Ensco plc (the "Company") on Form 10-Q for the period ending September 30, 2015 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, James W. Swent III, Executive Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002 (the "Act"), that, to my knowledge: 

(1)	The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 (the "Exchange Act"); and	
		
(2)	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.	

	
			
/s/ James W. Swent III	 	
James W. Swent III
Executive Vice President and
Chief Financial Officer
	 	
Dated:  	October 29, 2015	 	

The foregoing certification is being furnished solely pursuant to § 906 of the Act and Rule 13a-14(b) promulgated under the Exchange Act and is not being filed as part of the Report or as a separate disclosure document.