Asset Retirement Obligations

6 Months Ended

Jun. 30, 2015

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligations

15. Asset Retirement Obligations

The Company recognizes asset retirement obligations for the removal and disposal of residues; dismantling of certain tanks required by governmental authorities; cleaning and dismantling costs for owned rail cars; and cleaning costs for leased rail cars and barges. The following table reflects changes in the carrying values of asset retirement obligations:

	June 30, 2015			December 31, 2014
(Dollars in millions)
Asset retirement obligation at beginning of year	$	30.5		$	23.2
Acquisition		0.8			0.0
Accretion expense		1.5			2.3
Revision in estimated cash flows		3.3			10.3
Cash expenditures		(3.5	)		(4.6	)
Currency translation		(0.4	)		(0.7	)
Balance at end of period	$	32.2		$	30.5