Key Takeaway
Wyodak Mine is a active surface mine producing Coal, located in Gillette, Campbell County, WY. It has 309 violations on record (52 S&S) and $206K in proposed penalties. Operated by Black Hills Energy.
Wyodak Mine
Operator: Black Hills Energy
Controller: Black Hills Corp
Location: Gillette, Campbell County, WY
Employees: 60
Recent Violations
View all 309 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 03/04/2026 | 77.502 | Non-S&S | LowNegligence | $0 |
| 03/04/2026 | 77.502 | Non-S&S | LowNegligence | $0 |
| 03/03/2026 | 47.44(b) | Non-S&S | LowNegligence | $0 |
| 03/03/2026 | 77.410(b) | Non-S&S | LowNegligence | $0 |
| 02/27/2026 | 77.701 | Non-S&S | LowNegligence | $0 |
| 02/26/2026 | 77.807 | Non-S&S | LowNegligence | $0 |
| 10/10/2025 | 71.206(a) | Non-S&S | LowNegligence | $151 |
| 08/12/2025 | 77.202 | Non-S&S | ModNegligence | $151 |
| 08/12/2025 | 77.505 | Non-S&S | ModNegligence | $151 |
| 08/12/2025 | 77.208(d) | Non-S&S | LowNegligence | $151 |
| 08/07/2025 | 77.502 | Non-S&S | ModNegligence | $151 |
| 08/06/2025 | 77.1110 | Non-S&S | LowNegligence | $151 |
| 08/06/2025 | 77.1104 | Non-S&S | LowNegligence | $151 |
| 02/05/2025 | 77.503 | Non-S&S | ModNegligence | $151 |
| 02/05/2025 | 77.502 | Non-S&S | ModNegligence | $151 |
| 06/14/2024 | 77.502-2 | Non-S&S | ModNegligence | $147 |
| 06/14/2024 | 77.502-2 | Non-S&S | ModNegligence | $147 |
| 05/08/2024 | 77.404(a) | Non-S&S | ModNegligence | $172 |
| 05/08/2024 | 77.404(a) | Non-S&S | ModNegligence | $172 |
| 05/02/2024 | 72.620 | S&S | HighNegligence | $4,273 |
Accidents & Injuries
View all 58 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 01/15/2024 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 90d lost |
| 12/19/2023 | POWERED HAULAGE | ACCIDENT ONLY | None |
| 07/25/2022 | MACHINERY | PERM TOT OR PERM PRTL DISABLTY | 37d lost |
| 08/25/2021 | OTHER | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 02/14/2021 | FIRE | ACCIDENT ONLY | None |
| 09/12/2019 | HANDTOOLS (NONPOWERED) | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 08/30/2019 | FIRE | ACCIDENT ONLY | None |
| 11/24/2018 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 79d restricted |
| 11/10/2018 | HANDTOOLS (NONPOWERED) | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 07/21/2012 | MACHINERY | NO DYS AWY FRM WRK,NO RSTR ACT | None |
Inspections
View all 129 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 02/23/2026 | 32.00 | 1 | |
| 10/10/2025 | 10/15/2025 | 2.50 | 1 |
| 08/05/2025 | 09/15/2025 | 106.50 | 5 |
| 01/22/2025 | 02/27/2025 | 130.75 | 2 |
| 04/29/2024 | 06/24/2024 | 115.25 | 4 |
| 12/18/2023 | 02/12/2024 | 119.75 | 4 |
| 04/14/2023 | 08/16/2023 | 101.50 | 5 |
| 12/13/2022 | 02/21/2023 | 95.25 | 4 |
| 08/15/2022 | 08/24/2022 | 7.00 | 1 |
| 07/26/2022 | 08/17/2022 | 10.00 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Wyodak Mine have?
Wyodak Mine has 309 MSHA violations on record, of which 52 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $206K.
What type of mine is Wyodak Mine?
Wyodak Mine is a Surface mine producing Coal, located in Gillette, Campbell County, WY. It currently has 60 employees.
Has anyone been injured or killed at Wyodak Mine?
According to MSHA records, Wyodak Mine has 58 reported accident/injury records and 1 fatalities on file.
Who operates Wyodak Mine?
Wyodak Mine is operated by Black Hills Energy and controlled by Black Hills Corp. MSHA Mine ID: 4800083.