Six Months Ended June 30,

2026

2025

Asset retirement obligations as of beginning of period

$

906

$

807

Assumed Coterra obligations

177

—

Liabilities incurred

26

21

Liabilities settled and divested

(24

)

(22

)

Revision and reclassification of estimated obligation

107

55

Accretion expense on discounted obligation

31

24

Asset retirement obligations as of end of period

1,223

885

Less current portion

54

46

Asset retirement obligations, long-term

$

1,169

$

839