Annual report pursuant to Section 13 and 15(d)

Asset Retirement Obligations (Tables)

v3.22.0.1
Asset Retirement Obligations (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Schedule of Change in Asset Retirement Obligation [Table Text Block]

The following table is a reconciliation of our ARO (in thousands):

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Year Ended December 31, 

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2021

    

2020

Asset retirement obligations, beginning of period

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$

392,704

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$

355,594

Liabilities settled

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(27,309)

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(3,339)

Accretion of discount

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22,925

​

 

22,521

Liabilities incurred and assumed through acquisition

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454

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4,860

Revisions of estimated liabilities (1)

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35,721

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13,068

Asset retirement obligations, end of period

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​

424,495

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​

392,704

Less current portion

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(56,419)

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(17,188)

Long-term

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$

368,076

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$

375,516

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(1) Revisions in 2021 and 2020 were due to changes in scope, weather impact, revisions to actual expenses versus estimates and revisions related to non-operated properties.