Annual report pursuant to Section 13 and 15(d)

PROPERTY, PLANT AND EQUIPMENT (Tables)

v3.3.1.900
PROPERTY, PLANT AND EQUIPMENT (Tables)
 12 Months Ended
Dec. 31, 2015
Property, Plant and Equipment [Abstract]  
Value Of Each Of The Major Classes Of Consolidated Depreciable Assets
The following table indicates the value of each of the major classes of our consolidated depreciable assets as of December 31, 2015 and 2014:
 
(In Millions)
 
December 31,
 
2015
 
2014
Land rights and mineral rights
$
500.5

 
$
500.5

Office and information technology
71.0

 
73.7

Buildings
60.4

 
59.8

Mining equipment
594.0

 
585.1

Processing equipment
516.8

 
510.2

Electric power facilities
46.4

 
46.8

Land improvements
24.8

 
24.7

Asset retirement obligation
87.9

 
26.5

Other
28.2

 
28.5

Construction in-progress
40.3

 
14.4

 
1,970.3

 
1,870.2

Allowance for depreciation and depletion
(911.3
)
 
(799.7
)
 
$
1,059.0

 
$
1,070.5

Book Value of Land and Mineral Rights Disclosure [Table Text Block]
The net book value of the land rights and mineral rights as of December 31, 2015 and 2014 is as follows:
 
(In Millions)
 
December 31,
 
2015
 
2014
Land rights
$
11.6

 
$
11.6

Mineral rights:

 

Cost
$
488.9

 
$
488.9

Depletion
(108.4
)
 
(101.0
)
Net mineral rights
$
380.5

 
$
387.9