ASSET RETIREMENT OBLIGATIONS
|9 Months Ended
Sep. 30, 2022
|Asset Retirement Obligation [Abstract]
|ASSET RETIREMENT OBLIGATIONS
NOTE 12 - ASSET RETIREMENT OBLIGATIONS
The following is a summary of our asset retirement obligations:
The accrued closure obligation provides for contractual and legal obligations related to our indefinitely idled and closed operations and for the eventual closure of our active operations. The closure date for each of our active mine sites was determined based on the exhaustion date of the remaining mineral reserves, and the amortization of the related asset and accretion of the liability is recognized over the estimated mine lives. The closure date and expected timing of the capital requirements to meet our obligations for our indefinitely idled or closed mines is determined based on the unique circumstances of each property. For indefinitely idled or closed mines, the accretion of the liability is recognized over the anticipated timing of remediation. As the majority of our asset retirement obligations at our steelmaking operations have indeterminate settlement dates, asset retirement obligations have been recorded at present values using estimated ranges of the economic lives of the underlying assets.
The following is a roll forward of our asset retirement obligation liability:
The increase from revision in estimated cash flows primarily relates to rising electricity costs associated with required water management systems related to closed coal mines in Pennsylvania.