Key Takeaway
Cordero Rojo Mine is a active surface mine producing Coal, located in Gillette, Campbell County, WY. It has 504 violations on record (116 S&S) and $199K in proposed penalties. Operated by Navajo Transitional Energy Company, LLC.
Cordero Rojo Mine
Operator: Navajo Transitional Energy Company, LLC
Controller: Navajo Transitional Energy Company LLC
Location: Gillette, Campbell County, WY
Employees: 215
Recent Violations
View all 504 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 02/04/2026 | 77.1607(b) | S&S | ModNegligence | $0 |
| 02/04/2026 | 77.1713(c) | Non-S&S | HighNegligence | $0 |
| 01/28/2026 | 50.12 | Non-S&S | HighNegligence | $0 |
| 01/28/2026 | 77.1001 | S&S | ModNegligence | $0 |
| 01/20/2026 | 77.1607(b) | S&S | ModNegligence | $0 |
| 01/14/2026 | 50.10(b) | Non-S&S | HighNegligence | $0 |
| 01/12/2026 | 77.1104 | Non-S&S | ModNegligence | $193 |
| 01/12/2026 | Non-S&S | HighNegligence | $0 | |
| 12/14/2025 | 47.44(b) | Non-S&S | ModNegligence | $193 |
| 12/11/2025 | 77.516 | Non-S&S | ModNegligence | $193 |
| 12/09/2025 | 77.205(e) | S&S | ModNegligence | $0 |
| 06/09/2025 | 77.1713(a) | S&S | HighNegligence | $3,184 |
| 06/08/2025 | 77.204 | S&S | ModNegligence | $151 |
| 06/08/2025 | 77.1710(g) | S&S | ModNegligence | $151 |
| 06/08/2025 | 77.1710(g) | S&S | HighNegligence | $3,184 |
| 05/22/2025 | 77.1104 | Non-S&S | ModNegligence | $165 |
| 05/14/2025 | 77.203 | Non-S&S | ModNegligence | $165 |
| 05/14/2025 | 77.208(d) | Non-S&S | ModNegligence | $165 |
| 05/14/2025 | 77.410(c) | Non-S&S | ModNegligence | $165 |
| 05/12/2025 | 47.41(a) | Non-S&S | LowNegligence | $151 |
Accidents & Injuries
View all 153 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 12/30/2025 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | None |
| 12/20/2025 | HANDTOOLS (NONPOWERED) | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 12/28/2024 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 10/22/2024 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 2d lost |
| 03/02/2024 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 81d lost |
| 12/19/2023 | FIRE | ACCIDENT ONLY | None |
| 05/25/2023 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 97d lost |
| 01/25/2023 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 11/10/2022 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 24d lost |
| 11/01/2022 | OTHER | NO DYS AWY FRM WRK,NO RSTR ACT | None |
Inspections
View all 150 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 01/15/2026 | 02/10/2026 | 29.75 | 1 |
| 01/08/2026 | 01/16/2026 | 76.50 | 2 |
| 12/08/2025 | 02/10/2026 | 157.75 | 6 |
| 09/04/2025 | 09/24/2025 | 16.00 | 1 |
| 04/28/2025 | 06/16/2025 | 136.00 | 6 |
| 02/11/2025 | 03/12/2025 | 143.00 | 4 |
| 09/23/2024 | 09/24/2024 | 15.50 | 1 |
| 08/05/2024 | 09/12/2024 | 123.00 | 5 |
| 07/29/2024 | 08/28/2024 | 21.75 | 1 |
| 06/10/2024 | 06/13/2024 | 20.00 | 1 |
Mine Details
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Frequently Asked Questions
How many MSHA violations does Cordero Rojo Mine have?
Cordero Rojo Mine has 504 MSHA violations on record, of which 116 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $199K.
What type of mine is Cordero Rojo Mine?
Cordero Rojo Mine is a Surface mine producing Coal, located in Gillette, Campbell County, WY. It currently has 215 employees.
Has anyone been injured or killed at Cordero Rojo Mine?
According to MSHA records, Cordero Rojo Mine has 153 reported accident/injury records and 0 fatalities on file.
Who operates Cordero Rojo Mine?
Cordero Rojo Mine is operated by Navajo Transitional Energy Company, LLC and controlled by Navajo Transitional Energy Company LLC. MSHA Mine ID: 4800992.