Asset Retirement Obligations

9 Months Ended

Sep. 30, 2013

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligations

Note 5 – Asset Retirement Obligations

The change in our asset retirement obligations during the nine months ended September 30, 2013 is set forth below:

	Nine Months Ended September 30, 2013
	(In millions)
Asset retirement obligations as of the beginning of the period, including current portion	$	488.3
Liabilities incurred		16.5
Liabilities settled		(61.2	)
Accretion expense		25.0
Asset retirement obligations as of the end of the period, including current portion	$	468.6