Quarterly report pursuant to Section 13 or 15(d)

PROPERTY, PLANT AND EQUIPMENT

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PROPERTY, PLANT AND EQUIPMENT
 9 Months Ended
Sep. 30, 2013
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT
NOTE 5 - PROPERTY, PLANT AND EQUIPMENT
The following table indicates the value of each of the major classes of our consolidated depreciable assets as of September 30, 2013 and December 31, 2012:
 
(In Millions)
 
September 30,
2013
 
December 31, 2012
Land rights and mineral rights
$
7,826.5

 
$
7,920.8

Office and information technology
119.3

 
92.4

Buildings
214.0

 
162.0

Mining equipment
1,554.7

 
1,290.7

Processing equipment
2,172.8

 
1,937.4

Railroad equipment
222.3

 
240.8

Electric power facilities
82.9

 
58.7

Port facilities
103.8

 
114.3

Interest capitalized during construction
25.5

 
20.8

Land improvements
63.0

 
43.9

Other
91.8

 
39.0

Construction in progress
1,049.2

 
1,123.9

 
13,525.8

 
13,044.7

Allowance for depreciation and depletion
(2,171.0
)
 
(1,837.4
)
 
$
11,354.8

 
$
11,207.3


We recorded depreciation and depletion expense of $148.3 million and $423.1 million in the Statements of Unaudited Condensed Consolidated Operations for the three and nine months ended September 30, 2013, respectively. This compares with depreciation and depletion expense of $127.7 million and $364.9 million for the three and nine months ended September 30, 2012, respectively.
The accumulated amount of capitalized interest included within construction in progress at September 30, 2013 is $30.1 million, of which $15.3 million was capitalized during 2013. At December 31, 2012, $17.1 million of capitalized interest was included within construction in progress, of which $15.4 million was capitalized during 2012.