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Mine safety order at Hallador Energy (HNRG) Oaktown mine draws company challenge

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
8-K

Rhea-AI Filing Summary

Hallador Energy Company reported a mine safety event involving its subsidiary Sunrise Coal, LLC. On March 25, 2026, federal mine regulators issued an imminent danger order at the Oaktown Fuels Mine No. 1 in Knox County, Indiana, after alleging an electrician worked on equipment that was not de-energized.

The order required work to stop until the equipment was de-energized, which mine personnel did immediately. No injuries occurred and production at the mine was not interrupted. Hallador Energy states it disagrees that the situation constituted an imminent danger under the Mine Act and plans to contest the Section 107(a) order.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): March 25, 2026

Graphic

Hallador Energy Company

(Exact name of registrant as specified in its charter)

Colorado

001-34743

84-1014610

(State or other jurisdiction
of incorporation)

(Commission File Number)

(IRS Employer
Identification No.)

1183 East Canvasback DriveTerre HauteIndiana 47802

(Address, including zip code, of principal executive offices)

Registrant’s telephone number, including area code: (812299-2800

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

  Securities registered pursuant to Section 12(b) of the Act:

Title of each class

 

Trading Symbol

 

Name of each exchange
on which registered

Common Shares, $.01 par value

 

HNRG

 

Nasdaq

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

Item 1.04 Mine Safety - Reporting of Shutdowns and Patterns of Violations.

On July 21, 2010, the Dodd-Frank Wall Street and Consumer Protection Act (the “Act”) was enacted. Section 1503 of the Act requires a Current Report on Form 8-K if a company is issued an imminent danger order under Section 107(a) of the Federal Mine Safety and Health Act of 1977 (the “Mine Act”) by the federal Mine Safety and Health Administration (“MSHA”).

On March 25, 2026, Sunrise Coal, LLC, a subsidiary of Hallador Energy Company, received an imminent danger order under Section 107(a) of the Mine Act at Oaktown Fuels, Mine No. 1 ("Oaktown"), located in Knox County, Indiana (MSHA ID# 12-02394). On that date, an MSHA representative alleged that an electrician was performing electrical work on a piece of equipment that was not de-energized. The order required the electrician to cease working until the equipment was de-energized.  Oaktown personnel immediately de-energized the equipment. No injuries resulted from the condition and production at the mine was not interrupted. The Company disagrees that the condition constitutes an imminent danger under the Mine Act and intends to contest the 107(a) order.

Item 9.01 – Financial Statements and Exhibits

(d)  Exhibits

104 – Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: March 27, 2026

By:

/s/ TODD E. TELESZ

 

 

Todd E. Telesz

CFO

FAQ

What mine safety issue did Hallador Energy (HNRG) disclose in this 8-K?

Hallador Energy disclosed that Sunrise Coal’s Oaktown Fuels Mine No. 1 received an imminent danger order on March 25, 2026. Regulators alleged an electrician worked on equipment that was not de-energized before Oaktown personnel immediately de-energized it.

Did the mine safety order at Hallador Energy’s Oaktown mine cause injuries or production losses?

No. The company reports that no injuries resulted from the condition cited at Oaktown Fuels Mine No. 1. It also states that production at the mine was not interrupted after personnel de-energized the equipment as required by the order.

Why did Sunrise Coal receive an imminent danger order on March 25, 2026?

An MSHA representative alleged that an electrician at Oaktown Fuels Mine No. 1 was performing electrical work on equipment that was not de-energized. Based on this allegation, MSHA issued an imminent danger order under Section 107(a) of the Mine Act.

How is Hallador Energy responding to the MSHA imminent danger order?

Hallador Energy states it disagrees that the cited condition qualifies as an imminent danger under the Mine Act. The company intends to contest the Section 107(a) order through the applicable process, while noting the equipment was de-energized and operations were not disrupted.

Which Hallador Energy subsidiary and mine were involved in the safety order?

The order was issued to Sunrise Coal, LLC, a subsidiary of Hallador Energy Company. It related specifically to Oaktown Fuels, Mine No. 1, located in Knox County, Indiana and identified by MSHA as mine ID number 12-02394.

What law requires Hallador Energy to report mine safety shutdowns or violations?

Reporting is required under Section 1503 of the Dodd-Frank Wall Street and Consumer Protection Act. That provision mandates disclosure when a company receives an imminent danger order under Section 107(a) of the federal Mine Safety and Health Act of 1977.

Filing Exhibits & Attachments

4 documents
Hallador Energy Company

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