Asset Retirement Obligations (Tables)

12 Months Ended

Dec. 31, 2015

Asset Retirement Obligation Disclosure [Abstract]

Activity For Asset Retirement Obligations

The following table presents activity for asset retirement obligations for the year ended December 31, 2015:

(In millions)
Balance, December 31, 2014	$	—
Obligations assumed in business combination		6.5
Revisions and liabilities incurred		(1.0	)
Accretion expense		0.4
Payments		(0.9	)
Balance, December 31, 2015	$	5.0