Mining Incidents

ACNR Holdings, Inc: 3 recorded fatalities controller

MSHA controller ID: 0157801

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Email me when a new MSHA incident is filed at any mine ACNR Holdings, Inc controls.

Fatalities
3
Total incidents
2,232
Mines on record
22
Years on record
2020–2026
Public-issuer link

Armstrong Energy, Inc. discloses mines under this controller in its SEC Dodd-Frank Section 1503 (EX-95) mine-safety filings.

Compliance record
MSHA citations since 2020
15,309
citations
2,661
significant & substantial
$10,868,595
proposed penalties
$8,001,311
paid to date
74% of proposed penalties paid to date, a $2,867,284 gap.
Source: MSHA violations data, updated weekly.
Labor enforcement (WHD)
US Labor Department wage findings since 2021
3
labor cases
3
employees affected
Source: US DOL Wage and Hour Division enforcement records, matched by employer name and state.
Inspection activity
MSHA inspections since 2020
5,102
inspections on record
193,649
inspection hours
7.9
citations per 100 inspection hours
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
15,309 citations across 193,649 inspection hours.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
A Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.
6
Section 107(a) orders
Most recent order: 2026-06-08.
On record since 2021.
Source: MSHA imminent-danger order records, updated weekly.
Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$10.9M
proposed penalties
$8.6M
current assessed
$8.0M
paid to date
$638K
outstanding
14,146 assessments are final orders; 362 contested dockets.
Of $5.4M in penalties contested before the Commission, $3.2M was upheld in final decisions.
As of the most recent assessment on 2026-07-09.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
17.5%
significant & substantial
3.9%
high negligence or reckless
17.4%
reasonably likely or greater
18.2%
permanently disabling or fatal if injury occurs
Negligence coding: 0.4% none, 47.1% low, 48.6% moderate, 3.9% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Injury rate, 2025
This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
9.89
total case rate
8.67
days-away rate
0.000
fatality rate
Above average. The US coal mining average was 3.19 and the all-US-mining average was 1.97 cases per 100 workers.
Year total case rate days-away fatal
2026 11.10 9.60 0.062
2025 9.89 8.67 0.000
2024 8.87 7.73 0.000
2023 7.30 6.42 0.000
2022 7.57 6.62 0.000
2021 7.29 6.47 0.025
2020 8.51 7.60 0.000
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Health sampling
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.

Respirable coal dust
Respirable coal dust and silica figures cover coal facilities. Dust compliance is measured against the current 1.5 mg/m3 standard; samples predating the 2014 standard are included, so compliance rates are a coarse historical signal.

Last sampled: 2026-08-20
99%
within 1.5 mg/m3
28,059
samples
210
over MSHA ECV
The excessive concentration value (ECV) is MSHA's own per-sample enforcement threshold, which builds in measurement uncertainty; a sample over its ECV can trigger a citation. The count covers only samples MSHA assigned an ECV.
4,593 samples taken by MSHA inspectors, 23,466 by the operator.
Most-sampled occupations
  • CONTINUOUS MINER OPERATOR6,322
  • SHUTTLE CAR OPERATOR (STANDARD SIDE)3,425
  • ROOF BOLTER (MOUNTED) (RETURN SIDE)2,897

Silica (quartz)

Last sampled: 2026-08-14
3.3
silica avg (%)
1,554
samples
18.3
silica max (%)
Most-sampled occupations
  • CONTINUOUS MINER OPERATOR383
  • SHUTTLE CAR OPERATOR (STANDARD SIDE)214
  • ROOF BOLTER (TWIN HEAD) (RETURN SIDE)165

Noise
The share counts noise samples whose measured dose exceeded the 90 dBA permissible exposure limit. It describes the sampled workplace, not what reached the miner's ear: hearing conservation programs and the hearing protection worn during the shift are recorded separately and are not reflected here.

Last sampled: 2026-08-11
11%
over PEL
1,709
samples
Most-sampled occupations
  • CONTINUOUS MINER OPERATOR185
  • SHUTTLE CAR OPERATOR (STANDARD SIDE)143
  • ROOF BOLTER (TWIN HEAD) (RETURN SIDE)100
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly.
When citations were contested
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
2,439 citations taken to the federal commission · 16% of citations on record
  • Settled 2,210 · 91%
  • Stood as issued 20 · 1%
  • Still open 209 · 9%
87%
S&S designation survived the contest
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 1,146 decided S&S contests · industry: 79%
42%
Penalty reduction in decided contests
$5.4M proposed, $3.1M after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2026-08-11. Vacated and withdrawn citations are removed from the file this view attributes through, so that outcome is slightly undercounted here.
Contested penalties
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this controller contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
SE 2025-0006 Settlement Simonton 2025 $203K → $118K
SE 2023-0164 Settlement Young 2023 $99K → $27K
SE 2024-0177 Settlement Young 2025 $97K → $55K
SE 2023-0106 Settlement McCarthy 2023 $89K → $25K
SE 2023-0111 Settlement Lewis 2023 $86K → $13K
WEVA 2023-0225 Settlement Paez 2023 $86K → $40K
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.

Top causes

Incident timeline

2026
234 (1f)
2025
362
2024
332
2023
391
2022
428 (1f)
2021
377 (1f)
2020
108

Operators under this controller

Mines on record

Fatalities under this controller

3 recorded
April 3, 2026 WV · Coal section foreman, bullgang foreman, labor foreman, leadman, shift boss Fatality · POWERED HAULAGE
Ohio County Coal Resources, Inc. · Caught in, under or between a moving and a stationary object

An employee was working on a winch rope on a 650 scoop that was loaded with a shield, this shield was hit by another 650 scoop, causing the employee to be caught between the scoop EE was working on and the shield tip.

January 14, 2022 WV · Coal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman Fatality · SLIP OR FALL OF PERSON
Ohio County Coal Resources, Inc. · Fall from machine

Employee fell from 28 feet. On top of 400 conveyor belt on 5th floor of preparation plant. Fell to 4th floor.

June 2, 2021 WV · Coal section foreman, bullgang foreman, labor foreman, leadman, shift boss Fatality · FALL OF FACE/RIB/PILLAR/SIDE/HIGHWALL
Marion County Coal Resources, Inc. · Struck by falling object

An EE was fatally injured when coal and rock material fell from the mine rib while rib bolting, and pinned the injured against the continuous mining machine. The rock and coal material measured approximately 6.3'x3.2'x2.0'. The miner was trained in the task being performed.

For insurers, brokers, and safety consultants

Where ACNR Holdings, Inc stands on silica, penalties, and injury rate

MSHA's standard limits respirable silica to 50 micrograms per cubic metre, but MSHA publishes dust and quartz as separate files and never the silica figure itself. We derive it per sample, score it against the limit, and set the operator's injury rate against a benchmark built from the full MSHA operator record. With the 26-year penalty trail, contest posture, and fatality history. Delivered as a PDF with the underlying data as CSV.

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