​

For the Six Months Ended June 30, 

​

2026

  ​ ​ ​

2025

Asset retirement obligations, beginning of period

$

31,816

​

$

30,188

Liabilities assumed in acquisition

310

​

—

Revisions

—

​

—

Liabilities settled from plugging activity

(216)

​

(162)

Accretion expense

1,077

​

1,060

Asset retirement obligations, end of period

$

32,987

​

$

31,086

Less: current portion included in Accrued expenses

1,410

​

1,765

Asset retirement obligations, long-term

$

31,577

​

$

29,321