Quarterly report pursuant to Section 13 or 15(d)

PROPERTY, PLANT AND EQUIPMENT (Tables)

v3.8.0.1
PROPERTY, PLANT AND EQUIPMENT (Tables)
3 Months Ended
Mar. 31, 2018
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:
 
(In Millions)
 
March 31,
2018
 
December 31,
2017
Land rights and mineral rights
$
549.6

 
$
549.6

Office and information technology
66.3

 
66.3

Buildings
85.5

 
86.8

Mining equipment
594.0

 
594.4

Processing equipment
619.8

 
617.0

Electric power facilities
57.0

 
57.0

Land improvements
23.6

 
23.7

Asset retirement obligation
16.9

 
19.2

Other
30.3

 
30.3

Construction in-progress
48.1

 
35.1

 
2,091.1

 
2,079.4

Allowance for depreciation and depletion
(1,043.8
)
 
(1,028.4
)
 
$
1,047.3

 
$
1,051.0