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Management - Labor Relations
 12 Months Ended
Dec. 31, 2023
Risks and Uncertainties [Abstract]  
Management - Labor Relations Management — Labor Relations
On December 31, 2023, the Company had approximately 5,400 employees worldwide, including approximately 4,200 hourly employees; the employee amounts exclude employees that were employed at operations classified as discontinued operations. Approximately 38% of those hourly employees were represented by organized labor unions and were employed by mines that generated 18% of the Company’s 2023 coal production from continuing operations. In the U.S., the hourly employees of one active mine and one inactive mine are represented by an organized labor union. In Australia, the coal mining industry is unionized and the majority of hourly workers employed at the Company’s Australian mining operations are members of trade unions. The Mining and Energy Union (MEU) generally represents the Company’s Australian subsidiaries’ hourly production and engineering employees, including those employed through contract mining relationships.
The following table presents the Company’s active and inactive mining operations as of December 31, 2023 in which the employees are represented by organized labor unions:
MineApproximate Number of Active Employees RepresentedUnionCurrent Agreement Expiration Date or Date Amendable
U.S.
Kayenta20UMWANovember 2024
Shoal Creek270UMWADecember 2024
Australia
Wilpinjong440MEUJune 2024
Coppabella325MEUFebruary 2026
Moorvale (1)
210MEUJune 2023
Centurion (2)
10N/A2028
Metropolitan
Underground employees165MEUMay 2025
Handling and preparation plant employees (3)
15MEU2027
Wambo Underground
Underground employees120MEUNovember 2025
Handling and preparation plant employees20MEUAugust 2025
(1)    Employees of the Moorvale Mine operate on individual contracts under a direct engagement model. Such contracts are modeled after the Company’s former labor agreement with the MEU which ended in 2017. The Company is currently negotiating a new labor agreement with the MEU and employees.
(2)    The Company and employees have agreed to a new four-year term labor agreement in December, and it is lodged with the Fair Work Commission for approval.
(3)    The Company, employees and the MEU have agreed to a new three-year term labor agreement in December, and it is lodged with the Fair Work Commission for approval.