Quarterly report pursuant to Section 13 or 15(d)

ASSET RETIREMENT OBLIGATIONS (Tables)

v3.20.2
ASSET RETIREMENT OBLIGATIONS (Tables)
9 Months Ended
Sep. 30, 2020
Asset Retirement Obligation [Abstract]  
Summary Of Asset Retirement Obligations The following is a summary of our asset retirement obligations:
(In Millions)
September 30,
2020
December 31,
2019
Asset retirement obligations1
$ 186.4  $ 165.3 
Less current portion 4.4  2.1 
Long-term asset retirement obligations $ 182.0  $ 163.2 
1 Includes $33.7 million and $22.0 million related to our active operations as of September 30, 2020 and December 31, 2019, respectively.
Schedule of Change in Asset Retirement Obligation The following is a roll forward of our asset retirement obligation liability:
(In Millions)
2020 2019
Asset retirement obligation as of January 1 $ 165.3  $ 172.4 
Increase from AK Steel acquisition 16.7  — 
Accretion expense 7.8  7.6 
Remediation payments (3.4) (0.5)
Asset retirement obligation as of September 30 $ 186.4  $ 179.5