Changes in accumulated other comprehensive income (loss) by component for the three and nine months ended September 30, 2015 were as follows (in millions):



	Cash Flow Hedges			Foreign Currency Items			Total
Three Months Ended September 30, 2015
Beginning balance, net of tax	$	46.5		$	(5.8	)	$	40.7
Other comprehensive income (loss) before reclassifications:
Change in fair value of derivatives	31.6			—			31.6
Foreign currency translations	—			(0.2		)	(0.2		)
Income tax effect	(11.5		)	—			(11.5		)
Net of tax	20.1			(0.2		)	19.9
Amounts reclassified from accumulated other comprehensive income:
Operating revenue: oil/natural gas production	39.9			—			39.9
Income tax effect	(14.4		)	—			(14.4		)
Net of tax	25.5			—			25.5
Other comprehensive income (loss), net of tax	(5.4		)	(0.2		)	(5.6		)
Ending balance, net of tax	$	41.1		$	(6.0	)	$	35.1



	Cash Flow Hedges			Foreign Currency Items			Total
Nine Months Ended September 30, 2015
Beginning balance, net of tax	$	86.8		$	(3.5	)	$	83.3
Other comprehensive income (loss) before reclassifications:
Change in fair value of derivatives	35.7			—			35.7
Foreign currency translations	—			(2.5		)	(2.5		)
Income tax effect	(12.8		)	—			(12.8		)
Net of tax	22.9			(2.5		)	20.4
Amounts reclassified from accumulated other comprehensive income:
Operating revenue: oil/natural gas production	107.1			—			107.1
Income tax effect	(38.5		)	—			(38.5		)
Net of tax	68.6			—			68.6
Other comprehensive income (loss), net of tax	(45.7		)	(2.5		)	(48.2		)
Ending balance, net of tax	$	41.1		$	(6.0	)	$	35.1

Changes in accumulated other comprehensive income (loss) by component for the three and nine months ended September 30, 2014, were as follows (in millions):



	Cash Flow Hedges			Foreign Currency Items			Total
Three Months Ended September 30, 2014
Beginning balance, net of tax	$	(17.8	)	$	(0.4	)	$	(18.2	)
Other comprehensive income (loss) before reclassifications:
Change in fair value of derivatives	47.1			—			47.1
Foreign currency translations	—			(1.6		)	(1.6		)
Income tax effect	(16.9		)	—			(16.9		)
Net of tax	30.2			(1.6		)	28.6
Amounts reclassified from accumulated other comprehensive income:
Operating revenue: oil/natural gas production	(1.3		)	—			(1.3		)
Income tax effect	0.5			—			0.5
Net of tax	(0.8		)	—			(0.8		)
Other comprehensive income (loss), net of tax	31.0			(1.6		)	29.4
Ending balance, net of tax	$	13.2		$	(2.0	)	$	11.2



	Cash Flow Hedges			Foreign Currency Items			Total
Nine Months Ended September 30, 2014
Beginning balance, net of tax	$	(1.4	)	$	(0.7	)	$	(2.1	)
Other comprehensive income (loss) before reclassifications:
Change in fair value of derivatives	3.7			—			3.7
Foreign currency translations	—			(1.3		)	(1.3		)
Income tax effect	(1.2		)	—			(1.2		)
Net of tax	2.5			(1.3		)	1.2
Amounts reclassified from accumulated other comprehensive income:
Operating revenue: oil/natural gas production	(17.6		)	—			(17.6		)
Derivative expense, net	(1.5		)	—			(1.5		)
Income tax effect	7.0			—			7.0
Net of tax	(12.1		)	—			(12.1		)
Other comprehensive income (loss), net of tax	14.6			(1.3		)	13.3
Ending balance, net of tax	$	13.2		$	(2.0	)	$	11.2