XML 48 R35.htm IDEA: XBRL DOCUMENT v3.26.1
Asset Retirement Obligations (Tables)
12 Months Ended
Dec. 31, 2025
Asset Retirement Obligation Disclosure [Abstract]  
Schedule of Asset Retirement Obligations

​

​

​

​

​

​

​

​

​

​

​

​

​

Year Ended December 31,

(in thousands)

​

2025

​

2024

​

2023

Balance, as of January 1,

  ​ ​ ​

$

201,158

  ​ ​ ​

$

195,476

  ​ ​ ​

$

182,300

Additions through acquisitions (1)

​

 

18,761

​

 

—

​

 

640

Liabilities incurred

​

 

226

​

 

42

​

 

89

Liabilities settled

​

 

(1,873)

​

 

(1,288)

​

 

(759)

Liabilities associated with property sold (2)

​

 

—

​

 

(7,133)

​

 

—

Accretion of discount

​

 

15,067

​

 

14,061

​

 

13,206

Balance, as of December 31,

​

 

233,339

​

 

201,158

​

 

195,476

Less current portion

​

 

(2,967)

​

 

(2,363)

​

 

(2,271)

Asset retirement obligations, long-term

​

$

230,372

​

$

198,795

​

$

193,205

(1)Relates to the Bedrock Acquisition. See Note 3 - Acquisition and Dispositions for further discussion.
(2)Liabilities associated with property sold relate to the sales of Chaffee and certain non-operated upstream assets in Chelsea. See Note 3 - Acquisition and Dispositions for further discussion.