Key Takeaway
Casper Plant is a active facility mine producing Nonmetal, located in Casper, Natrona County, WY. It has 126 violations on record (27 S&S) and $21K in proposed penalties. Operated by Black Hills Bentonite-A Limited Liability Co.
Casper Plant
Operator: Black Hills Bentonite-A Limited Liability Co
Controller: BHB Limited Partnership; A&M Products
Location: Casper, Natrona County, WY
Employees: 13
Recent Violations
View all 126 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 07/19/2025 | 56.14112(a)(1) | Non-S&S | ModNegligence | $151 |
| 12/16/2024 | 56.12028 | Non-S&S | ModNegligence | $151 |
| 08/05/2024 | 56.5001(a)/56.5005 | Non-S&S | $0 | |
| 08/05/2024 | 56.5002 | S&S | HighNegligence | $935 |
| 05/23/2024 | 56.12032 | Non-S&S | LowNegligence | $239 |
| 05/23/2024 | 56.14107(a) | Non-S&S | ModNegligence | $239 |
| 05/23/2024 | 56.14107(a) | Non-S&S | ModNegligence | $239 |
| 05/23/2024 | 56.14107(a) | Non-S&S | ModNegligence | $239 |
| 05/23/2024 | 56.11001 | Non-S&S | ModNegligence | $161 |
| 05/23/2024 | 56.11012 | Non-S&S | ModNegligence | $161 |
| 05/23/2024 | 56.11002 | Non-S&S | ModNegligence | $161 |
| 05/23/2024 | 56.14107(a) | Non-S&S | LowNegligence | $147 |
| 05/23/2024 | 56.5001(a)/56.5005 | S&S | ModNegligence | $1,430 |
| 12/14/2023 | 56.12004 | Non-S&S | ModNegligence | $147 |
| 12/14/2023 | 56.14107(a) | S&S | LowNegligence | $147 |
| 12/14/2023 | 56.11001 | S&S | ModNegligence | $189 |
| 12/14/2023 | 56.14132(a) | S&S | ModNegligence | $626 |
| 08/16/2023 | 56.14101(a)(2) | Non-S&S | ModNegligence | $143 |
| 08/16/2023 | 56.14207 | Non-S&S | ModNegligence | $143 |
| 12/12/2022 | 56.11012 | Non-S&S | ModNegligence | $143 |
Accidents & Injuries
View all 30 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 07/16/2024 | MACHINERY | DAYS AWAY FROM WORK ONLY | 9d lost |
| 05/21/2024 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 7d lost |
| 05/20/2024 | STEPPING OR KNEELING ON OBJECT | DAYS AWAY FROM WORK ONLY | 2d lost |
| 11/29/2023 | HANDTOOLS (NONPOWERED) | DAYS AWAY FROM WORK ONLY | 1d lost |
| 08/24/2023 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 6d lost |
| 03/27/2023 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 8d lost |
| 01/21/2018 | SLIP OR FALL OF PERSON | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 04/14/2016 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 29d lost |
| 03/30/2015 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 1d lost |
| 10/18/2014 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 4d lost |
Inspections
View all 84 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 10/21/2025 | 10/22/2025 | 25.00 | 2 |
| 07/16/2025 | 07/23/2025 | 24.00 | 2 |
| 12/16/2024 | 12/17/2024 | 12.00 | 1 |
| 09/07/2024 | 09/08/2024 | 16.25 | 1 |
| 08/20/2024 | 08/20/2024 | 2.00 | 1 |
| 07/10/2024 | 08/07/2024 | 21.25 | 1 |
| 05/23/2024 | 05/24/2024 | 48.00 | 1 |
| 12/21/2023 | 12/21/2023 | 2.75 | 1 |
| 12/13/2023 | 12/15/2023 | 26.25 | 1 |
| 08/16/2023 | 08/17/2023 | 25.50 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Casper Plant have?
Casper Plant has 126 MSHA violations on record, of which 27 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $21K.
What type of mine is Casper Plant?
Casper Plant is a Facility mine producing Nonmetal, located in Casper, Natrona County, WY. It currently has 13 employees.
Has anyone been injured or killed at Casper Plant?
According to MSHA records, Casper Plant has 30 reported accident/injury records and 0 fatalities on file.
Who operates Casper Plant?
Casper Plant is operated by Black Hills Bentonite-A Limited Liability Co and controlled by BHB Limited Partnership; A&M Products. MSHA Mine ID: 4800243.