The following tables summarize our unaudited quarterly condensed consolidated income statement data for the years ended December 31, 2016 and 2015 (in millions, except per share amounts):



2016	First Quarter			Second Quarter			Third Quarter			Fourth Quarter			Year
Operating revenues	$	814.0		$	909.6		$	548.2		$	504.6		$	2,776.4
Operating expenses
Contract drilling (exclusive of depreciation)	363.7			350.2			298.1			289.0			1,301.0
Depreciation	113.3			112.4			109.4			110.2			445.3
General and administrative	23.4			27.4			25.3			24.7			100.8
Operating income	313.6			419.6			115.4			80.7			929.3
Other (expense) income, net	(64.6		)	209.9			(30.9		)	(46.2		)	68.2
Income from continuing operations before income taxes	249.0			629.5			84.5			34.5			997.5
Income tax expense (benefit)	71.4			36.7			(3.5		)	3.9			108.5
Income from continuing operations	177.6			592.8			88.0			30.6			889.0
(Loss) income from discontinued operations, net	(.9		)	(.2		)	(.7		)	9.9			8.1
Net income	176.7			592.6			87.3			40.5			897.1
Net income attributable to noncontrolling interests	(1.4		)	(2.0		)	(2.0		)	(1.5		)	(6.9		)
Net income attributable to Ensco	$	175.3		$	590.6		$	85.3		$	39.0		$	890.2
Earnings per share – basic and diluted
Continuing operations	$	0.74		$	2.04		$	0.28		$	0.10		$	3.10
Discontinued operations	—			—			—			0.03			0.03
	$	0.74		$	2.04		$	0.28		$	0.13		$	3.13



2015	First Quarter			Second Quarter			Third Quarter			Fourth Quarter			Year
Operating revenues	$	1,163.9		$	1,059.0		$	1,012.2		$	828.3		$	4,063.4
Operating expenses
Contract drilling (exclusive of depreciation)	518.3			502.6			433.5			415.2			1,869.6
Loss on impairment	—			—			2.4			2,744.0			2,746.4
Depreciation	137.1			140.5			145.2			149.7			572.5
General and administrative	30.1			29.7			28.4			30.2			118.4
Operating income (loss)	478.4			386.2			402.7			(2,510.8		)	(1,243.5		)
Other expense, net	(72.6		)	(55.4		)	(52.4		)	(47.3		)	(227.7		)
Income (loss) from continuing operations before income taxes	405.8			330.8			350.3			(2,558.1		)	(1,471.2		)
Income tax expense (benefit)	77.7			58.0			33.2			(182.8		)	(13.9		)
Income (loss) from continuing operations	328.1			272.8			317.1			(2,375.3		)	(1,457.3		)
Loss from discontinued operations, net	(.2		)	(10.1		)	(23.3		)	(95.0		)	(128.6		)
Net income (loss)	327.9			262.7			293.8			(2,470.3		)	(1,585.9		)
Net income attributable to noncontrolling interests	(3.2		)	(2.4		)	(1.8		)	(1.5		)	(8.9		)
Net income (loss) attributable to Ensco	$	324.7		$	260.3		$	292.0		$	(2,471.8	)	$	(1,594.8	)
Earnings (loss) per share – basic and diluted
Continuing operations	$	1.38		$	1.15		$	1.34		$	(10.23	)	$	(6.33	)
Discontinued operations	—			(0.04		)	(0.10		)	(0.41		)	(0.55		)
	$	1.38		$	1.11		$	1.24		$	(10.64	)	$	(6.88	)