{"filing":{"accession_number":"0001104659-26-070122","cik":"0000788965","ticker":"HNRG","company_name":"HALLADOR ENERGY CO","form":"8-K","filing_date":"2026-06-03","report_date":null,"primary_document":"hnrg-20260528x8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/788965/000110465926070122/hnrg-20260528x8k.htm"},"events":[{"id":3037,"run_id":2646,"accession_number":"0001104659-26-070122","anchor_item_number":"1.04","event_type":"other_material","event_domain":"catchall","is_material":true,"confidence":0.75,"summary":"Hallador Energy's subsidiary Sunrise Coal received an imminent danger order from MSHA on May 28, 2026, under Section 107(a) of the Mine Act at Oaktown Fuels Mine No. 1. While this is a mandatory Item 1.04 disclosure under Dodd-Frank Section 1503, the event itself—a regulatory safety order at an operating mine—is material to investors assessing operational and regulatory risk, even though no injuries occurred and production was not interrupted. The company disputes the order and reserves the right to contest it.","company_name":"HALLADOR ENERGY CO","ticker":"HNRG","filing_date":"2026-06-03","items":[{"id":3891,"accession_number":"0001104659-26-070122","item_number":"1.04","item_title":"Mine Safety - Reporting of Shutdowns and Patterns of Violations.","event_type":"other_material","event_domain":"catchall","is_material":true,"confidence":0.75,"reasoning":"Hallador Energy's subsidiary Sunrise Coal received an imminent danger order from MSHA on May 28, 2026, under Section 107(a) of the Mine Act at Oaktown Fuels Mine No. 1. While this is a mandatory Item 1.04 disclosure under Dodd-Frank Section 1503, the event itself—a regulatory safety order at an operating mine—is material to investors assessing operational and regulatory risk, even though no injuries occurred and production was not interrupted. The company disputes the order and reserves the right to contest it.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-04T02:18:58.517408+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":3891,"accession_number":"0001104659-26-070122","item_number":"1.04","item_title":"Mine Safety - Reporting of Shutdowns and Patterns of Violations.","event_type":"other_material","event_domain":"catchall","is_material":true,"confidence":0.75,"reasoning":"Hallador Energy's subsidiary Sunrise Coal received an imminent danger order from MSHA on May 28, 2026, under Section 107(a) of the Mine Act at Oaktown Fuels Mine No. 1. While this is a mandatory Item 1.04 disclosure under Dodd-Frank Section 1503, the event itself—a regulatory safety order at an operating mine—is material to investors assessing operational and regulatory risk, even though no injuries occurred and production was not interrupted. The company disputes the order and reserves the right to contest it.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-04T02:18:58.517408+00:00","company_name":"HALLADOR ENERGY CO","ticker":"HNRG","filing_date":"2026-06-03"}]}