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Asset Retirement Obligations
9 Months Ended
Sep. 30, 2021
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligations

15.

Asset Retirement Obligations

 

The following table presents the changes in Devon’s asset retirement obligations.

 

 

Nine Months Ended September 30,

 

 

 

2021

 

 

2020

 

Asset retirement obligations as of beginning of period

 

$

369

 

 

$

398

 

Assumed WPX obligations

 

 

98

 

 

 

 

Liabilities incurred

 

 

28

 

 

 

15

 

Liabilities settled and divested

 

 

(52

)

 

 

(24

)

Revision of estimated obligation

 

 

11

 

 

 

4

 

Accretion expense on discounted obligation

 

 

21

 

 

 

15

 

Asset retirement obligations as of end of period

 

 

475

 

 

 

408

 

Less current portion

 

 

13

 

 

 

10

 

Asset retirement obligations, long-term

 

$

462

 

 

$

398