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Establishment profile

BLACK HILLS BENTONITE

55 SOUTH SALT CREEK HWY., CASPER, WY, 82609

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OSHA inspections
1
over 30 years
Violations
0
Penalties
$0

Summary

BLACK HILLS BENTONITE has accumulated 0 OSHA violations across 1 inspection over 30 years of recorded history.

The most recent federal enforcement activity was recorded 30 years ago.

Federal records were found in 1 of 15 sources. Sources without matching records returned empty for this establishment.

Agency coverage

BLACK HILLS BENTONITE appears in OSHA workplace safety, MSHA mine safety, and UVA Corporate Prosecution Registry records only. No matching records were found in WHD wage enforcement, EPA environmental compliance, NLRB labor relations, OFLC visa and labor certification (historical), FMCSA motor carrier registration, SAM.gov federal debarment, CMS nursing home enforcement, CPSC product recalls, or NHTSA vehicle recalls.

OSHA workplace safety

Inspections
1
0.0 / yr · last 30 yrs
Violations
0
0.0 / yr
Penalties
$0
Inspection trigger · planned
1 of 1

Peer comparison

0th

Fewer violations than most other employers. Peer group: 9,475 employers. This establishment has 0 OSHA violations; peer median is 0.

Fewer violationsMore violations
Penalty percentile
0th
peer median: $0
Inspection frequency
0th
peer median: 1

Safety self-report (OSHA 300A)

No self-reported injury rates filed with OSHA's Injury Tracking Application for BLACK HILLS BENTONITE. Verify directly with OSHA Injury Tracking Application

Inspection breakdown

Planned
1

Complaint- and accident-triggered inspections are stronger risk signals than routine planned inspections.

OSHA severe injury reports

No severe injury reports (hospitalization, amputation, or loss of an eye) on file under 29 CFR 1904.39 for BLACK HILLS BENTONITE. Verify directly with Occupational Safety and Health Administration

Activity timeline

Data refreshed
Weekly
First OSHA inspection
Most recent activity
30 years ago

No federal enforcement activity has been recorded against this establishment in 30+ years. Most recent activity: 30 years ago. Data on this page is refreshed weekly.

Wage & Hour Division (WHD)

No WHD wage, overtime, or child-labor enforcement cases on file for BLACK HILLS BENTONITE. Verify directly with Wage and Hour Division

Mine safety (MSHA)

Company-level in WY — for BLACK HILLS BENTONITE, not this location alone

Violations
647
Assessed penalties
$275,019

Mine Safety & Health Administration — citations issued at mining operations. MSHA records cases at the company/regional level (no worksite address), so these are matched by company name and state and may span other BLACK HILLS BENTONITE operations in the same state.

MSHA citations

Mine Safety and Health Administration citations. S&S (significant and substantial) marks violations that could reasonably contribute to a serious injury. Negligence rating is MSHA’s operator-culpability assessment (none, low, moderate, high, or reckless disregard). Proposed = assessed at issuance; Paid = post-settlement / appeal. 100 citations · 78S&S · $206,780 proposed / $135,412 paid.

CitationMineDateSectionS&SNegligenceProposedPaid
6305591
Mills Plant
Natrona, WY
Aug 2007YesLowNegligence$45,000$900
8752348
Mills Plant
Natrona, WY
Feb 2015YesHighNegligence$18,742$7,925
9471967
Mills Plant
Natrona, WY
Dec 2022YesLowNegligence$6,688$3,006
8826389
Mills Plant
Natrona, WY
Sep 2017YesHighNegligence$6,531$4,898
9348562
HT Plant
Natrona, WY
Aug 2020NoHighNegligence$6,232$6,232
8826388
Mills Plant
Natrona, WY
Sep 2017YesHighNegligence$5,877$4,408
8937473
HT Plant
Natrona, WY
Aug 2016NoHighNegligence$5,783$450
8752485
Mills Plant
Natrona, WY
May 2014YesModNegligence$4,689$4,689
8752482
Mills Plant
Natrona, WY
May 2014YesModNegligence$4,689$4,689
8752350
Mills Plant
Natrona, WY
Feb 2015YesHighNegligence$4,440$4,440
8752349
Mills Plant
Natrona, WY
Feb 2015YesHighNegligence$4,440$4,440
8752347
Mills Plant
Natrona, WY
Feb 2015YesHighNegligence$4,440$4,440
8752346
Mills Plant
Natrona, WY
Feb 2015YesHighNegligence$3,996$3,996
6456596
Mills Plant
Natrona, WY
Apr 2013YesModNegligence$3,405$3,405
6456595
Mills Plant
Natrona, WY
Apr 2013YesModNegligence$3,405$3,405
9731797
Kaycee Mine
Johnson, WY
Mar 2024YesModNegligence$3,361$3,361
6420058
Mills Plant
Natrona, WY
Jan 2009YesHighNegligence$3,143$3,143
8752353
Mills Plant
Natrona, WY
Feb 2015YesModNegligence$2,678$2,678
6420046
Mills Plant
Natrona, WY
Jan 2009YesModNegligence$2,678$2,678
6420044
Mills Plant
Natrona, WY
Jan 2009YesModNegligence$2,678$2,678
6420043
Mills Plant
Natrona, WY
Jan 2009YesModNegligence$2,678$2,678
7914627
Mills Plant
Natrona, WY
Oct 2002YesModNegligence$2,400$2,400
9650844
TENSLEEP MINE
Washakie, WY
Nov 2021YesHighNegligence$2,237$2,237
6420100
Mills Plant
Natrona, WY
May 2009YesModNegligence$2,106$1,052
8752316
Mills Plant
Natrona, WY
Oct 2014YesModNegligence$1,944$1,944
8937478
Mills Plant
Natrona, WY
Aug 2016YesModNegligence$1,607$1,607
9657046
TENSLEEP MINE
Washakie, WY
Apr 2022YesHighNegligence$1,593$1,593
9657043
TENSLEEP MINE
Washakie, WY
Apr 2022YesHighNegligence$1,593$1,593
9657040
TENSLEEP MINE
Washakie, WY
Apr 2022YesNoNegligence$1,593
8752483
Mills Plant
Natrona, WY
May 2014YesModNegligence$1,412$1,412
5030825
Mills Plant
Natrona, WY
Jul 2025NoModNegligence$1,320$1,320
9902867
Mills Plant
Natrona, WY
Jul 2024YesModNegligence$1,287$1,287
9902874
Mills Plant
Natrona, WY
Jul 2024YesModNegligence$1,287$1,287
8825911
TENSLEEP MINE
Washakie, WY
Jul 2015YesHighNegligence$1,203$1,203
8752351
Mills Plant
Natrona, WY
Feb 2015YesModNegligence$1,203$762
6420049
Mills Plant
Natrona, WY
Jan 2009YesModNegligence$1,203$1,203
8752541
Mills Plant
Natrona, WY
Aug 2014NoModNegligence$1,111$1,111
6456046
Mills Plant
Natrona, WY
Nov 2010YesModNegligence$1,111$1,111
8937477
Mills Plant
Natrona, WY
Aug 2016YesModNegligence$1,078$1,078
8937474
Mills Plant
Natrona, WY
Aug 2016YesModNegligence$1,078$1,078
8752358
Kaycee Mine
Johnson, WY
Feb 2015NoHighNegligence$1,026$1,026
6456597
Mills Plant
Natrona, WY
Apr 2013YesModNegligence$1,026$1,026
6420214
Mills Plant
Natrona, WY
May 2008YesModNegligence$1,026$1,026
6420213
Mills Plant
Natrona, WY
May 2008YesModNegligence$1,026$1,026
6588456
OSHOTO MINE
Weston, WY
Mar 2011YesModNegligence$900$900
5030824
Mills Plant
Natrona, WY
Jul 2025NoLowNegligence$883$883
8752315
Mills Plant
Natrona, WY
Oct 2014YesModNegligence$873$873
6455167
Mills Plant
Natrona, WY
May 2010YesModNegligence$873$873
9902879
Mills Plant
Natrona, WY
Jul 2024YesModNegligence$861$861
6419748
Mills Plant
Natrona, WY
Nov 2009YesModNegligence$807$807
9721698
TENSLEEP MINE
Washakie, WY
Jul 2023NoModNegligence$772$772
9721651
TENSLEEP MINE
Washakie, WY
Feb 2023YesModNegligence$712$712
9721650
TENSLEEP MINE
Washakie, WY
Feb 2023YesModNegligence$712$712
9305305
OSHOTO MINE
Weston, WY
May 2018NoHighNegligence$638$638
6305819
Mills Plant
Natrona, WY
Jan 2008YesModNegligence$634$634
6305818
Mills Plant
Natrona, WY
Jan 2008YesModNegligence$634$634
6302023
Mills Plant
Natrona, WY
Dec 2003NoModNegligence$629$629
6304802
HT Plant
Natrona, WY
Dec 2007YesModNegligence$585$585
9731151
OSHOTO MINE
Weston, WY
Aug 2024YesModNegligence$576$576
9908574
TENSLEEP MINE
Washakie, WY
Dec 2024YesModNegligence$549$549
8752345
Mills Plant
Natrona, WY
Feb 2015NoLowNegligence$540$100
8752344
Mills Plant
Natrona, WY
Feb 2015NoLowNegligence$540$100
6420042
Mills Plant
Natrona, WY
Jan 2009NoModNegligence$540$540
9578167
TENSLEEP MINE
Washakie, WY
Sep 2024YesModNegligence$535$535
9900589
TENSLEEP MINE
Washakie, WY
Mar 2024YesModNegligence$535$535
9471845
Mills Plant
Natrona, WY
Aug 2021YesModNegligence$530$530
9349453
Mills Plant
Natrona, WY
Apr 2020YesHighNegligence$523$523
9349450
Mills Plant
Natrona, WY
Apr 2020YesModNegligence$523$523
9732799
Kaycee Mine
Johnson, WY
Oct 2025YesModNegligence$504$504
9305317
OSHOTO MINE
Weston, WY
Jun 2018NoHighNegligence$502$502
9348564
HT Plant
Natrona, WY
Aug 2020YesModNegligence$487$487
9348563
HT Plant
Natrona, WY
Aug 2020YesModNegligence$487$487
9657041
TENSLEEP MINE
Washakie, WY
Apr 2022YesModNegligence$481$481
9650840
TENSLEEP MINE
Washakie, WY
Nov 2021YesModNegligence$453$453
8826457
Kaycee Mine
Johnson, WY
Mar 2016YesModNegligence$446$446
9396454
OSHOTO MINE
Weston, WY
Jan 2019YesModNegligence$440$440
8937412
HT Plant
Natrona, WY
Feb 2016YesModNegligence$436$436
9908593
Mills Plant
Natrona, WY
Dec 2024NoModNegligence$432$432
9908592
Mills Plant
Natrona, WY
Dec 2024NoModNegligence$432$432
6456542
Mills Plant
Natrona, WY
Nov 2012NoModNegligence$425$425
6455578
Kaycee Mine
Johnson, WY
Feb 2011YesModNegligence$425$425
6420395
TENSLEEP MINE
Washakie, WY
Aug 2009YesModNegligence$403$403
8586129
TENSLEEP MINE
Washakie, WY
Jul 2013YesModNegligence$392$392
8586128
TENSLEEP MINE
Washakie, WY
Jul 2013YesModNegligence$392$392
8585964
TENSLEEP MINE
Washakie, WY
Jan 2013YesModNegligence$392$392
8585963
TENSLEEP MINE
Washakie, WY
Jan 2013YesModNegligence$392$392
8585945
HT Plant
Natrona, WY
Dec 2012YesModNegligence$392$392
6304800
HT Plant
Natrona, WY
Dec 2007YesModNegligence$392$392
6304799
HT Plant
Natrona, WY
Dec 2007YesModNegligence$392$392
8941613
OSHOTO MINE
Weston, WY
May 2016YesModNegligence$380$380
5033764
Kaycee Mine
Johnson, WY
Apr 2026YesModNegligence$366
8825912
TENSLEEP MINE
Washakie, WY
Jul 2015YesModNegligence$362$362
9349451
Mills Plant
Natrona, WY
Apr 2020NoHighNegligence$351$351
9722131
TENSLEEP MINE
Washakie, WY
Sep 2023NoModNegligence$346$346
6305821
Mills Plant
Natrona, WY
Jan 2008NoModNegligence$334$334
9304194
Mills Plant
Natrona, WY
Jun 2017NoHighNegligence$330$330
9304187
Mills Plant
Natrona, WY
Jun 2017NoHighNegligence$330$330
6302031
Mills Plant
Natrona, WY
Dec 2003YesModNegligence$324$324
6456594
Mills Plant
Natrona, WY
Apr 2013NoModNegligence$308$308
6302029
Mills Plant
Natrona, WY
Dec 2003YesModNegligence$305$305

Source: MSHA citation database. “Contractor” annotations indicate the cited party was on-site at the mine but not the mine’s operator -- responsibility attaches to the contractor LLC, not the mine’s owner. Section codes reference 30 CFR (the Mine Safety and Health regulations).

Labor relations (NLRB)

No NLRB unfair labor practice charges or union representation cases on file for BLACK HILLS BENTONITE. Verify directly with National Labor Relations Board

Visa & labor certification (OFLC) — historical

No H-1B, H-2A, or H-2B labor condition applications on file (historical data only — DOL ended OFLC publication) for BLACK HILLS BENTONITE. Verify directly with Office of Foreign Labor Certification

Environmental compliance (EPA)

No EPA inspections or formal enforcement actions on file for BLACK HILLS BENTONITE. Verify directly with Environmental Protection Agency

Federal criminal prosecution record

Prosecutions
1
Total payments
$2K
Disposition
Guilty Plea
Crime type
Other

First case: 2008-07-07. Most recent: 2008-07-07. Source: UVA Corporate Prosecution Registry — federal pleas, DPAs, and NPAs.

Federal prosecution case file

Federal corporate prosecution records from the University of Virginia Corporate Prosecution Registry. DPA = Deferred Prosecution Agreement; NPA = Non-Prosecution Agreement; both are pre-trial settlements where the defendant accepts terms but avoids conviction. Monitor = court-appointed compliance oversight, usually 2-5 years. 1 case · 1 plea/conviction · $1,784 in penalties / restitution.

CaseDateDispositionCrimeJurisdictionTotal paymentMonitor
USA v. Black Hills Bentonite LLC
Black Hills Bentonite, LLC
Jul 2008pleaOtherWyoming$1,784No

Source: University of Virginia Corporate Prosecution Registry (maintained by Prof. Brandon L. Garrett, Duke University). The registry has no state or jurisdiction-of-incorporation field on the company side, so same-name employers in different states may mis-attribute -- verify against the source case documents when precision matters.

Inspection history

DateTriggerViolationsSeriousPenalty
1995-10-24Planned0$0

Source: OSHA IMIS. Citation amounts reflect initially assessed penalties; final amounts after appeal may differ.

In the news

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About this data

This profile aggregates federal enforcement records on BLACK HILLS BENTONITE from every major federal compliance and enforcement source plus the UVA Corporate Prosecution Registry. OSHA workplace safety inspections, WHD wage cases, MSHA mine safety, EPA environmental enforcement, NLRB labor relations, OFLC visa/labor certification, FMCSA motor carrier registration, SAM.gov debarments, CMS nursing-home records, BLS industry safety benchmarks, OSHA ITA self-reported injury rates, SEC enforcement and financial disclosures, CPSC and NHTSA recalls.

Establishments are matched across agencies using normalized employer name, state, and ZIP code.

OSHA citations typically appear 3–8 months after the inspection, so very recent enforcement actions may not yet be reflected. Profiles may be incomplete if the establishment operates under multiple legal names or files under variations our entity-matching rules don’t yet cover. To report a missing record or correction, email corrections@fastdol.com.

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Frequently asked

What is BLACK HILLS BENTONITE's OSHA violation history?
BLACK HILLS BENTONITE has 1 OSHA inspection on record with 0 violations and $0 in total penalties.