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Asset Retirement Obligations
 3 Months Ended
Sep. 30, 2023
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligations

5. Asset Retirement Obligations

The change in our ARO during the periods presented and the balance of our accrued reclamation liabilities at the end of each period are set forth below.

 

 

September 30,

 

 

June 30,

 

 

 

2023

 

 

2023

 

 

 

(in thousands)

 

Asset retirement obligation — beginning of period

 

$

724

 

 

$

489

 

Obligation incurred during the period

 

 

—

 

 

 

31

 

Revisions to previous estimates (1)

 

 

—

 

 

 

167

 

Accretion

 

 

17

 

 

 

37

 

Asset retirement obligation — end of period

 

$

741

 

 

$

724

 

(1) The revision for the prior period is attributable to revised cost estimates provided by a third-party engineering firm and was reflected as an increase to mineral rights and properties (see Note 2).