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Wolverine Fuels LLC safety activity

MSHA violations, accident reports and inspections across the current mine portfolio.

2025-01-01 – 2026-10-31Database snapshot · 2026-10-31

Safety activity

  1. High-voltage underground equipment; grounding.

    violationRecord 5030570
    SUFCO · 4200089

    30 CFR 75.811 · $151.00 proposed penalty

  2. Machinery and equipment; operation and maintenance.

    violationRecord 5037128
    Emery Valley Mine · 4200079

    30 CFR 75.1725(a) · $151.00 proposed penalty

  3. Accumulation of combustible materials.

    violationRecord 5030834
    SKYLINE MINE #3 · 4201566

    30 CFR 75.400 · $504.00 proposed penalty

  4. Mine ventilation plan; submission and approval.

    violationRecord 5037127
    Emery Valley Mine · 4200079

    30 CFR 75.370(a)(1) · $226.00 proposed penalty

  5. Ventilation controls.

    violationRecord 5037126
    Emery Valley Mine · 4200079

    30 CFR 75.333(h) · $151.00 proposed penalty

  6. Weekly examination.

    violationRecord 5030118
    SUFCO · 4200089

    30 CFR 75.364(c)(2) · $226.00 proposed penalty

  7. Ventilation controls.

    violationRecord 5030117
    SUFCO · 4200089

    30 CFR 75.333(h) · $313.00 proposed penalty

  8. Roof control plan.

    violationRecord 5035521
    Fossil Rock Mine · 4201211

    30 CFR 75.220(a)(1) · $151.00 proposed penalty

  9. Communication facilities; working sections; installation and maintenance requirements; audible or visual alarms.

    violationRecord 5030833
    SKYLINE MINE #3 · 4201566

    30 CFR 75.1600-2(e) · $151.00 proposed penalty

  10. Mine ventilation plan; submission and approval.

    violationRecord 5037125
    Emery Valley Mine · 4200079

    30 CFR 75.370(a)(1) · $151.00 proposed penalty

  11. Electric equipment; examination, testing and maintenance.

    violationRecord 5037124
    Emery Valley Mine · 4200079

    30 CFR 75.512 · $151.00 proposed penalty

  12. Accumulation of combustible materials.

    violationRecord 5030832
    SKYLINE MINE #3 · 4201566

    30 CFR 75.400 · $504.00 proposed penalty

  13. Machinery and equipment; operation and maintenance.

    violationRecord 5030831
    SKYLINE MINE #3 · 4201566

    30 CFR 75.1725(a) · $245.00 proposed penalty

  14. Preshift examination at fixed intervals.

    violationRecord 5030116
    SUFCO · 4200089

    30 CFR 75.360(g) · $151.00 proposed penalty

  15. Maintenance of belt conveyors and belt conveyor entries.

    violationRecord 5037123
    Emery Valley Mine · 4200079

    30 CFR 75.1731(b) · $151.00 proposed penalty

  16. Machinery and equipment; operation and maintenance.

    violationRecord 5030626
    SUFCO · 4200089

    30 CFR 75.1725(c) · Significant and substantial (S&S) · $4,152.00 proposed penalty

  17. Violation — cited standard not reported

    violationRecord 5030625
    SUFCO · 4200089

  18. Maintenance of diesel-powered equipment.

    violationRecord 5030115
    SUFCO · 4200089

    30 CFR 75.1914(a) · $226.00 proposed penalty

  19. Methane monitors.

    violationRecord 5030114
    SUFCO · 4200089

    30 CFR 75.342(a)(4) · $151.00 proposed penalty

  20. Communication facilities; working sections; installation and maintenance requirements; audible or visual alarms.

    violationRecord 5030624
    SUFCO · 4200089

    30 CFR 75.1600-2(e) · $151.00 proposed penalty

  21. Underground storage, lubricating oil and grease.

    violationRecord 5030623
    SUFCO · 4200089

    30 CFR 75.1104 · $151.00 proposed penalty

  22. Machinery and equipment; operation and maintenance.

    violationRecord 5037122
    Emery Valley Mine · 4200079

    30 CFR 75.1725(a) · $151.00 proposed penalty

  23. Permissible exposure level.

    violationRecord 5035520
    Fossil Rock Mine · 4201211

    30 CFR 62.130(a) · $151.00 proposed penalty

  24. Permissible exposure level.

    violationRecord 5035519
    Fossil Rock Mine · 4201211

    30 CFR 62.130(a) · $151.00 proposed penalty

  25. Ventilation controls.

    violationRecord 5035518
    Fossil Rock Mine · 4201211

    30 CFR 75.333(d)(3) · $151.00 proposed penalty

Sources and definitions

MSHA Violations (issue date), Accidents (accident date) and Inspections (begin date).

Violation titles use current CFR headings to identify the cited rule; they are not the inspector’s account of what happened.

Status is from the current MSHA Mines snapshot, not the selected reporting period. Closed records can retain their last reported controller/operator.

Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.

Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.

S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.

Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.

Portfolio totals use current mine membership, including events before the current owner or operator's tenure.