Fossil Rock Resources, LLC.: 242 MSHA citations operator
Controlled by
Wolverine Fuels LLC
MSHA operator ID: 0139473
Fossil Rock Resources, LLC. has had no fatalities among 11 reportable incidents since 2024. MSHA has proposed $85K in penalties since 2016, with $18K outstanding.
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- Fatalities
- 0
- Total incidents
- 11
- Mines on record
- 1
- Years on record
- 2024–2026
Compliance record
MSHA citations since 2016
242
citations
22
significant & substantial
$84,748
proposed penalties
$67,248
paid to date
79% of proposed penalties paid to date, a $17,500 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2016
51
inspections on record
4,158
inspection hours
5.8
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.242 citations across 4,158 inspection hours.
Source: MSHA inspections data, 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.$85K
proposed penalties
$85K
current assessed
$67K
paid to date
$18K
outstanding
185 assessments are final orders; 1 contested dockets.
As of the most recent assessment on 2026-08-14.
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.9.2%
significant & substantial
12.5%
high negligence or reckless
9.2%
reasonably likely or greater
14.6%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 14.6% low, 72.9% moderate, 12.5% 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 and are withheld below 20,000 hours in a year. Employment reports reach back to 1983, but those earlier years come from MSHA's archived file format and are not used in rates.3.13
total case rate
1.88
days-away rate
0.000
fatality rate
About average. The US coal mining average was 3.19 and the all-US-mining average was 1.98 cases per 100 workers.
| Year | total case rate | days-away | fatal |
|---|---|---|---|
| 2026 | 0.71 | 0.00 | 0.000 |
| 2025 | 3.13 | 1.88 | 0.000 |
| 2024 | 5.60 | 1.87 | 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: 2026-09-29
ⓘ
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.100%
within 1.5 mg/m3
869
samples
3.42
dust max (mg/m3)
5
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.199 samples taken by MSHA inspectors, 670 by the operator.
Most-sampled occupations
- CONTINUOUS MINER OPERATOR296
- ROOF BOLTER (TWIN HEAD) (RETURN SIDE)239
- DISPATCHER38
Silica (quartz)
Last sampled: 2026-09-221.8
silica avg (%)
46
samples
6.7
silica max (%)
Most-sampled occupations
- CONTINUOUS MINER OPERATOR15
- ROOF BOLTER (TWIN HEAD) (RETURN SIDE)13
- BULLDOZER OPERATOR4
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: 2026-09-17
ⓘ
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.10%
over PEL
170
samples
Most-sampled occupations
- CONTINUOUS MINER OPERATOR23
- ROOF BOLTER (TWIN HEAD) (RETURN SIDE)19
- ROOF BOLTER (TWIN HEAD) (INTAKE SIDE)13
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.
1
citations taken to the federal commission · 0% of citations on record
- Still open 1 · 100%
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 2026-02-11. 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 operator contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
| Docket | Decision | Judge | Year | Proposed / upheld |
|---|---|---|---|---|
| WEST 2026-0105 | Decision pending |
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.
Top causes
- HANDLING OF MATERIALS 5 non-fatal
- MACHINERY 2 non-fatal
- ELECTRICAL 1 non-fatal
- HANDTOOLS (NONPOWERED) 1 non-fatal
- OTHER 1 non-fatal
- SLIP OR FALL OF PERSON 1 non-fatal
Incident timeline
2026
1
2025
6
2024
4
Mines on record
For insurers, brokers, and safety consultants
Where Fossil Rock Resources, LLC. 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.
The federal record itself stays free on this site. What costs money, and why.