Quarterly report pursuant to Section 13 or 15(d)

ENVIRONMENTAL AND MINE CLOSURE OBLIGATIONS (Tables)

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ENVIRONMENTAL AND MINE CLOSURE OBLIGATIONS (Tables)
 9 Months Ended
Sep. 30, 2013
Environmental Remediation Obligations [Abstract]  
Summary Of Mine Closure Obligations
The following is a summary of the obligations as of September 30, 2013 and as of the year ended December 31, 2012:
 
(In Millions)
 
September 30,
2013
 
December 31, 2012
Environmental
$
8.4

 
$
15.7

Mine closure
 
 
 
LTVSMC
19.4

 
18.3

Operating mines:
 
 
 
U.S. Iron Ore
139.6

 
81.2

Eastern Canadian Iron Ore
76.6

 
88.9

Asia Pacific Iron Ore
26.2

 
22.4

North American Coal
40.0

 
38.6

Total mine closure
301.8

 
249.4

Total environmental and mine closure obligations
310.2

 
265.1

Less current portion
10.7

 
12.3

Long term environmental and mine closure obligations
$
299.5

 
$
252.8

Asset Retirement Obligation Disclosure
The following represents a rollforward of our asset retirement obligation liability related to our active mining locations for the nine months ended September 30, 2013 and the year ended December 31, 2012:
 
(In Millions)
 
September 30,
2013
 
December 31, 2012 (1)
Asset retirement obligation at beginning of period
$
231.1

 
$
194.9

Accretion expense
13.6

 
17.6

Exchange rate changes
2.8

 
0.3

Revision in estimated cash flows
35.2

 
18.2

Payments
(0.3
)
 
0.1

Asset retirement obligation at end of period
$
282.4

 
$
231.1

                                         
(1)
Represents a 12-month rollforward of our asset retirement obligation at December 31, 2012.