SHM #67 Coal

Onyx Energy, LLC · Surface

Controlled by Mohegan Energy Trustees LLC

Matoaka, Mercer County, WV · Active

MSHA Mine ID: 4609374

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Compliance record

MSHA citations since 2010

citations

significant & substantial

$5,640

proposed penalties

$2,714

paid to date

Source: MSHA violations data, updated weekly.

Quarterly safety rates

Citations per million employee-hours, as reported to MSHA

Quarter	Hours worked	Citations	Per 1M hrs
2025 Q4	4,835	0	0.0
2025 Q3	4,283	0	0.0
2025 Q1	5,172	2	386.7
2024 Q4	4,959	0	0.0
2024 Q1	2,222	0	0.0
2023 Q4	6,972	1	143.4
2023 Q3	6,564	0	0.0
2023 Q2	5,683	0	0.0

Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.

No fatalities recorded at this mine.

1 on file

February 12, 2011 WV · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS

Hanover Resources, LLC. · Struck by falling object

Employee was taking a hydraulic hose off a track hoe, when the hydraulic hose guard fell, striking him in the head.