Annual report pursuant to Section 13 and 15(d)

ENVIRONMENTAL AND MINE CLOSURE OBLIGATIONS (Tables)

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ENVIRONMENTAL AND MINE CLOSURE OBLIGATIONS (Tables)
 12 Months Ended
Dec. 31, 2012
Environmental Remediation Obligations [Abstract]  
Summary Of Mine Closure Obligations
The following is a summary of the obligations as of December 31, 2012 and 2011:
 
(In Millions)
 
December 31,
 
2012
 
2011
Environmental
$
15.7

 
$
15.5

Mine closure
 
 
 
LTVSMC
18.3

 
16.5

Operating mines:
 
 
 
U.S Iron Ore
81.2

 
74.3

Eastern Canadian Iron Ore
88.9

 
68.0

Asia Pacific Iron Ore
22.4

 
16.3

North American Coal
38.6

 
36.3

Total mine closure
249.4

 
211.4

Total environmental and mine closure obligations
265.1

 
226.9

Less current portion
12.3

 
13.7

Long term environmental and mine closure obligations
$
252.8

 
$
213.2

Asset Retirement Obligation Disclosure
The following represents a rollforward of our asset retirement obligation liability related to our active mining locations for the years ended December 31, 2012 and 2011:
 
(In Millions)
 
December 31,
 
2012
 
2011
Asset retirement obligation at beginning of period
$
194.9

 
$
162.1

Accretion expense
17.6

 
15.7

Exchange rate changes
0.3

 
0.1

Revision in estimated cash flows
18.2

 
3.7

Payments
0.1

 
(0.7
)
Acquired through business combinations
—

 
14.0

Asset retirement obligation at end of period
$
231.1

 
$
194.9