Quarterly report pursuant to Section 13 or 15(d)

ASSET RETIREMENT OBLIGATIONS (Tables)

v3.21.2
ASSET RETIREMENT OBLIGATIONS (Tables)
6 Months Ended
Jun. 30, 2021
Asset Retirement Obligation [Abstract]  
Summary Of Asset Retirement Obligations
The following is a summary of our asset retirement obligations:
(In Millions)
June 30,
2021
December 31,
2020
Asset retirement obligations1
$ 397  $ 342 
Less: current portion 31 
Long-term asset retirement obligations $ 366  $ 335 
1 Includes $243 million and $190 million related to our active operations as of June 30, 2021 and December 31, 2020, respectively.
Schedule of Change in Asset Retirement Obligation
The following is a roll forward of our asset retirement obligation liability:
(In Millions)
2021 2020
Asset retirement obligation as of January 1 $ 342  $ 165 
Increase from Acquisitions 57  14 
Accretion expense 8 
Remediation payments (10) (1)
Asset retirement obligation as of June 30 $ 397  $ 183