Hallador subsidiary receives MSHA imminent danger order at Oaktown Mine No. 1; company contests

HALLADOR ENERGY CO

On March 25, 2026, Sunrise Coal received a Section 107(a) imminent danger order at Oaktown Fuels Mine No. 1 (MSHA ID 12-02394).
MSHA alleged an electrician worked on equipment that was not de-energized; order required work to cease until equipment was de-energized.
Hallador de-energized the equipment immediately; no injuries occurred and production was not interrupted.
The company disagrees with the imminent danger classification and intends to contest the order.

item 1.04 item 9.01

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company_name: HALLADOR ENERGY CO
filed_at: 2026-03-27T23:59:59+00:00
discovered_at: 2026-05-14T18:02:37.703323+00:00
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