Quarterly report pursuant to Section 13 or 15(d)

PROPERTY, PLANT AND EQUIPMENT (Tables)

v3.19.2
PROPERTY, PLANT AND EQUIPMENT (Tables)
6 Months Ended
Jun. 30, 2019
Property, Plant and Equipment [Abstract]  
Value Of Each Of The Major Classes Of Consolidated Depreciable Assets
The following table indicates the carrying value of each of the major classes of our depreciable assets:
 
(In Millions)
 
June 30,
2019
 
December 31,
2018
Land rights and mineral rights
$
549.6

 
$
549.6

Office and information technology
70.6

 
70.0

Buildings
95.4

 
87.2

Mining equipment
575.8

 
548.5

Processing equipment
740.3

 
645.8

Electric power facilities
58.7

 
58.7

Land improvements
23.8

 
23.8

Asset retirement obligation
14.9

 
14.8

Other
27.6

 
25.2

Construction-in-progress
501.3

 
284.8

 
2,658.0

 
2,308.4

Allowance for depreciation and depletion
(1,060.7
)
 
(1,022.4
)
 
$
1,597.3

 
$
1,286.0