Three Months Ended March 31,

2026

2025

Asset retirement obligations as of beginning of period

$

906

$

807

Liabilities incurred

11

11

Liabilities settled and divested

(11

)

(8

)

Revision and reclassification of estimated obligation

107

55

Accretion expense on discounted obligation

14

12

Asset retirement obligations as of end of period

1,027

877

Less current portion

41

42

Asset retirement obligations, long-term

$

986

$

835