---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-24-009872"
form_type: "8-K"
ticker: "HNRG"
cik: "0000788965"
company_name: "HALLADOR ENERGY CO"
filed_at: "2024-03-28T23:59:59+00:00"
generated_at: "2026-06-04T06:48:51.240548+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Hallador corrects coal cost per ton: $44.94 vs $33.67 previously

## Summary
- Average cost per ton of coal sold for 2023 corrected to $44.94 ($52.76 after eliminating intercompany sales).
- Previously reported $33.67 ($26.98) was a typographical error; no other figures affected.
- Correction applies to March 14 earnings release and Annual Report on Form 10-K.
- Company filed Form 8-K solely to fix this error; no change to overall financial results.

## SEC filing metadata
- accession: 0001437749-24-009872
- form_type: 8-K
- ticker: HNRG
- cik: 0000788965
- company_name: HALLADOR ENERGY CO
- filed_at: 2024-03-28T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/788965/000143774924009872/0001437749-24-009872-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/788965/000143774924009872/hnrg20240328_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-24-009872
- JSON: https://secwatch.observer/filing/0001437749-24-009872.json
- Plain text: https://secwatch.observer/filing/0001437749-24-009872.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.