Belle Ayr Mine

Active Surface Coal

Operator: Eagle Specialty Materials LLC

Controller: Petri E Koivula; David Michael Jamison

Location: Gillette, Campbell County, WY

Employees: 223

711
Violations
134
S&S Violations
192
Accidents
$349K
Penalties

Recent Violations

View all 711 →
Date Section S&S Negligence Penalty
11/20/2025 77.502 Non-S&S LowNegligence $165
11/19/2025 77.502 S&S LowNegligence $1,219
11/14/2025 77.410(c) Non-S&S LowNegligence $165
11/14/2025 77.1605(b) Non-S&S LowNegligence $165
11/14/2025 77.1104 Non-S&S ModNegligence $818
11/12/2025 77.410(c) Non-S&S ModNegligence $398
10/28/2025 77.1606(c) Non-S&S ModNegligence $465
10/24/2025 77.1605(l) S&S LowNegligence $3,184
10/24/2025 77.1605(b) S&S LowNegligence $336
10/23/2025 77.1104 Non-S&S LowNegligence $465
10/23/2025 77.604 Non-S&S LowNegligence $193
10/23/2025 77.404(a) S&S LowNegligence $0
10/23/2025 77.404(a) S&S LowNegligence $4,383
10/22/2025 77.512 Non-S&S ModNegligence $432
10/22/2025 77.502 Non-S&S ModNegligence $432
10/20/2025 77.502-2 Non-S&S ModNegligence $504
10/20/2025 77.502 Non-S&S ModNegligence $504
06/05/2025 47.41(a) Non-S&S LowNegligence $151
06/05/2025 77.904 Non-S&S ModNegligence $245
06/05/2025 77.505 Non-S&S ModNegligence $245

Accidents & Injuries

View all 192 →
Date Classification Injury Days Lost
08/26/2025 SLIP OR FALL OF PERSON NO DYS AWY FRM WRK,NO RSTR ACT None
08/12/2025 POWERED HAULAGE NO DYS AWY FRM WRK,NO RSTR ACT None
07/26/2025 POWERED HAULAGE DAYS AWAY FROM WORK ONLY 35d lost
04/30/2025 HANDLING OF MATERIALS DAYS AWAY FROM WORK ONLY 58d lost
01/22/2025 SLIP OR FALL OF PERSON DAYS AWAY FROM WORK ONLY 57d lost
11/13/2024 FIRE DAYS AWAY FROM WORK ONLY 91d lost
06/25/2024 MACHINERY DAYS RESTRICTED ACTIVITY ONLY 8d restricted
04/28/2024 MACHINERY NO DYS AWY FRM WRK,NO RSTR ACT None
01/29/2024 HANDLING OF MATERIALS NO DYS AWY FRM WRK,NO RSTR ACT None
01/08/2024 STEPPING OR KNEELING ON OBJECT DAYS AWAY FROM WORK ONLY 32d lost

Inspections

View all 141 →
Begin End Hours Inspectors
02/04/2026 02/09/2026 6.25 2
10/16/2025 12/05/2025 202.25 5
05/19/2025 06/16/2025 177.75 6
03/05/2025 03/27/2025 149.00 8
09/24/2024 09/26/2024 19.50 1
08/07/2024 08/07/2024 3.00 1
07/29/2024 07/30/2024 0.75 1
05/09/2024 07/03/2024 136.25 3
02/19/2024 02/20/2024 12.00 1
11/16/2023 01/26/2024 163.75 5

Mine Details

MSHA Mine ID4800732
Mine TypeSurface
StatusActive
CommodityCoal
SIC DescriptionCoal (Bituminous)
Employees223
Days/Week7.0
Hours/Shift12.0
Coordinates44.1000000, -105.3830560
Nearest TownGillette

Frequently Asked Questions

How many MSHA violations does Belle Ayr Mine have?

Belle Ayr Mine has 711 MSHA violations on record, of which 134 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $349K.

What type of mine is Belle Ayr Mine?

Belle Ayr Mine is a Surface mine producing Coal, located in Gillette, Campbell County, WY. It currently has 223 employees.

Has anyone been injured or killed at Belle Ayr Mine?

According to MSHA records, Belle Ayr Mine has 192 reported accident/injury records and 1 fatalities on file.

Who operates Belle Ayr Mine?

Belle Ayr Mine is operated by Eagle Specialty Materials LLC and controlled by Petri E Koivula; David Michael Jamison. MSHA Mine ID: 4800732.