Quarterly report pursuant to Section 13 or 15(d)

ASSET RETIREMENT OBLIGATIONS (Tables)

v3.20.1
ASSET RETIREMENT OBLIGATIONS (Tables)
3 Months Ended
Mar. 31, 2020
Environmental Remediation Obligations [Abstract]  
Summary Of Asset Retirement Obligations
The following is a summary of our asset retirement obligations:
 
(In Millions)
 
March 31,
2020
 
December 31,
2019
Asset retirement obligations1
$
181.4

 
$
165.3

Less current portion
2.2

 
2.1

Long-term asset retirement obligations
$
179.2

 
$
163.2


1 Includes $32.5 million and $22.0 million related to our active operations as of March 31, 2020 and December 31, 2019, respectively.
[1]
Schedule of Change in Asset Retirement Obligation
The following is a roll forward of our asset retirement obligation liability:
 
(In Millions)
 
March 31,
2020
 
December 31,
2019
Asset retirement obligation at beginning of period
$
165.3

 
$
172.4

Increase from AK Steel acquisition
13.9

 

Accretion expense
2.6

 
10.1

Remediation payments
(0.4
)
 
(0.8
)
Revision in estimated cash flows

 
(16.4
)
Asset retirement obligation at end of period
$
181.4

 
$
165.3


[1]
1 Includes $32.5 million and $22.0 million related to our active operations as of March 31, 2020 and December 31, 2019, respectively.