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Unaudited Quarterly Financial Data
 12 Months Ended
Dec. 31, 2014
Quarterly Financial Data [Abstract]  
Unaudited Quarterly Financial Data
UNAUDITED QUARTERLY FINANCIAL DATA

The following tables summarize our unaudited quarterly consolidated income statement data for the years ended December 31, 2014 and 2013 (in millions, except per share amounts):

2014
First 
Quarter  
     
 
Second
Quarter  
     
 
Third
Quarter  
     
 
Fourth 
Quarter  
     
 
Year 

Operating revenues
$
1,066.7

 
$
1,136.6

 
$
1,201.4

 
$
1,159.8

 
$
4,564.5

Operating expenses
 
 
 

 
 

 
 

 
 

Contract drilling (exclusive of depreciation)
520.2

 
542.5

 
500.2

 
514.0

 
2,076.9

Loss on impairment
—

 
703.5

 
—

 
3,515.2

 
4,218.7

Depreciation
131.1

 
132.2

 
135.2

 
139.4

 
537.9

General and administrative
38.1

 
36.2

 
29.3

 
28.3

 
131.9

Operating income
377.3

 
(277.8
)
 
536.7

 
(3,037.1
)
 
(2,400.9
)
Other expense, net
(29.1
)
 
(30.8
)
 
(38.4
)
 
(49.6
)
 
(147.9
)
Income (loss) from continuing operations before income taxes
348.2

 
(308.6
)
 
498.3

 
(3,086.7
)
 
(2,548.8
)
Income tax expense (benefit)
49.5

 
42.6

 
74.6

 
(26.2
)
 
140.5

Income (loss) from continuing operations
298.7

 
(351.2
)
 
423.7

 
(3,060.5
)
 
(2,689.3
)
(Loss) income from discontinued operations, net
(2.0
)
 
(818.4
)
 
9.2

 
(388.0
)
 
(1,199.2
)
Net income (loss)
296.7

 
(1,169.6
)
 
432.9

 
(3,448.5
)
 
(3,888.5
)
Net income attributable to noncontrolling interests
(4.2
)
 
(3.1
)
 
(3.5
)
 
(3.3
)
 
(14.1
)
Net income (loss) attributable to Ensco
$
292.5

 
$
(1,172.7
)
 
$
429.4

 
$
(3,451.8
)
 
$
(3,902.6
)
Earnings (loss) per share – basic
 

 
 

 
 

 
 

 


Continuing operations
$
1.26

 
$
(1.53
)
 
$
1.79

 
$
(13.22
)
 
$
(11.70
)
Discontinued operations
(0.01
)
 
(3.54
)
 
0.04

 
(1.67
)
 
(5.18
)
 
$
1.25

 
$
(5.07
)
 
$
1.83

 
$
(14.89
)
 
$
(16.88
)
Earnings (loss) per share – diluted
 

 
 

 
 

 
 

 


Continuing operations
$
1.26

 
$
(1.53
)
 
$
1.79

 
$
(13.22
)
 
$
(11.70
)
Discontinued operations
(0.01
)
 
(3.54
)
 
0.04

 
(1.67
)
 
(5.18
)
 
$
1.25

 
$
(5.07
)
 
$
1.83

 
$
(14.89
)
 
$
(16.88
)
2013
First 
Quarter  
     
 
Second
Quarter  
     
 
Third
Quarter  
     
 
Fourth 
Quarter  
     
 
Year 

Operating revenues
$
989.4

 
$
1,076.1

 
$
1,119.9

 
$
1,138.0

 
$
4,323.4

Operating expenses
 

 
 

 
 

 
 
 
 

Contract drilling (exclusive of depreciation)
451.4

 
496.1

 
499.2

 
500.4

 
1,947.1

Depreciation
120.0

 
124.0

 
124.7

 
127.5

 
496.2

General and administrative
37.8

 
36.4

 
37.4

 
35.2

 
146.8

Operating income
380.2

 
419.6

 
458.6

 
474.9

 
1,733.3

Other expense, net
(29.8
)
 
(39.8
)
 
(1.6
)
 
(28.9
)
 
(100.1
)
Income from continuing operations before income taxes
350.4

 
379.8

 
457.0

 
446.0

 
1,633.2

Income tax expense
47.8

 
43.2

 
67.5

 
44.6

 
203.1

Income from continuing operations
302.6

 
336.6

 
389.5

 
401.4

 
1,430.1

Income (loss) from discontinued operations, net
17.3

 
26.0

 
(8.1
)
 
(37.4
)
 
(2.2
)
Net income
319.9

 
362.6

 
381.4

 
364.0

 
1,427.9

Net income attributable to noncontrolling interests
(2.8
)
 
(1.7
)
 
(2.6
)
 
(2.6
)
 
(9.7
)
Net income attributable to Ensco
$
317.1

 
$
360.9

 
$
378.8

 
$
361.4

 
$
1,418.2

Earnings (loss) per share – basic
 

 
 

 
 

 
 

 


Continuing operations
$
1.29

 
$
1.44

 
$
1.66

 
$
1.71

 
$
6.09

Discontinued operations
0.07

 
0.11

 
(0.04
)
 
(0.16
)
 
(0.01
)
 
$
1.36

 
$
1.55

 
$
1.62

 
$
1.55

 
$
6.08

Earnings (loss) per share – diluted
 

 
 

 
 

 
 

 
 
Continuing operations
$
1.29

 
$
1.44

 
$
1.66

 
$
1.70

 
$
6.08

Discontinued operations
0.07

 
0.11

 
(0.04
)
 
(0.16
)
 
(0.01
)
 
$
1.36

 
$
1.55

 
$
1.62

 
$
1.54

 
$
6.07