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Quarterly report pursuant to Section 13 or 15(d)

PROPERTY, PLANT AND EQUIPMENT (Tables)

v3.10.0.1
PROPERTY, PLANT AND EQUIPMENT (Tables)
9 Months Ended
Sep. 30, 2018
Property, Plant and Equipment [Abstract] Ìý
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:
Ìý
(In Millions)
Ìý
SeptemberÌý30,
2018
Ìý
DecemberÌý31,
2017
Land rights and mineral rights
$
549.6

Ìý
$
549.6

Office and information technology
67.8

Ìý
65.8

Buildings
84.1

Ìý
85.2

Mining equipment
538.7

Ìý
533.9

Processing equipment
619.0

Ìý
610.9

Electric power facilities
58.7

Ìý
56.9

Land improvements
24.2

Ìý
23.7

Asset retirement obligation
16.9

Ìý
16.9

Other
25.2

Ìý
25.2

Construction in-progress
168.7

Ìý
32.6

Ìý
2,152.9

Ìý
2,000.7

Allowance for depreciation and depletion
(1,008.1
)
Ìý
(966.9
)
Ìý
$
1,144.8

Ìý
$
1,033.8