Stone Splitters #3 has $3K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
4
Years on record
2014–2026
Latest incident
Mar 2026
Compliance record
MSHA citations since 2010
22
citations
4
significant & substantial
$3,116
proposed penalties
$3,116
paid to date
100% of proposed penalties paid to date, a $0 gap.
citations per 100 inspection hours
ⓘThis rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
Rate withheld: 417 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Stone Splitters #3 has $3K in proposed MSHA penalties and $0 outstanding across 0 contested dockets.
Penalty disposition
ⓘDifferences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$3K
proposed penalties
$3K
current assessed
$3K
paid to date
$0
outstanding
22 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-12-18.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
ⓘShares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
Source: MSHA violations gravity and negligence coding, updated weekly.
Health sampling
ⓘA sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.
Metal and nonmetal contaminants (personal samples)
ⓘMany samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.
Last sampled: 2024-06-25
33%
of limit-tested samples over the exposure limit
15
samples
3
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz31 over
Respirable dust, <.1mg12
Show the individual readings (15)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2014-07-29
Quartz, respirable, >1% Qtz
0.52
0.46
1.13
Stone Polisher/Cutter
2024-06-25
Respirable dust, <.1mg
0
Forklift Operator
2024-06-25
Respirable dust, <.1mg
0
Forklift Operator
2024-06-25
Respirable dust, <.1mg
0
Front-end Loader Operator
2024-06-25
Respirable dust, <.1mg
0
Forklift Operator
2021-07-22
Respirable dust, <.1mg
0
Laborer, Bullgang
2021-07-22
Respirable dust, <.1mg
0
Bobcat Operator
2021-07-22
Respirable dust, <.1mg
0
Bobcat Operator
2021-07-22
Respirable dust, <.1mg
0
Laborer, Bullgang
2014-07-29
Quartz, respirable, >1% Qtz
0.13
0.4
0.33
Stone Polisher/Cutter
2014-07-29
Quartz, respirable, >1% Qtz
0.13
0.46
0.28
Bobcat Operator
2010-03-31
Respirable dust, <.1mg
0
Bobcat Operator
2010-03-31
Respirable dust, <.1mg
0
Utility Man
2010-03-31
Respirable dust, <.1mg
0
Utility Man
2010-03-31
Respirable dust, <.1mg
0
Bobcat Operator
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
3
2025
4
2024
5
2023
6
2022
5
2021
5
2020
6
2019
5
2018
5
2017
6
2016
7
2015
6
2014
8
2013
10
2012
7
2011
5
2010
5
2009
6
Source: MSHA quarterly employment and production, updated weekly.
Stone Splitters #3 sits in Haskell County, Oklahoma, where the Census mining category is 5.3% of county employment.
Local economic context
ⓘCounty figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Haskell County, Oklahoma · Population 11,667
5.3%
Mining share of county employment
$49,930
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
Quarterly safety rates
ⓘCitations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2026 Q2
1,376
0
0
0.0
2026 Q1
904
0
0
0.0
2025 Q4
944
1
0
1059.3
2025 Q3
1,462
0
0
0.0
2025 Q2
2,244
0
0
0.0
2025 Q1
1,824
0
0
0.0
2024 Q4
2,407
0
0
0.0
2024 Q3
2,111
0
0
0.0
Show 60 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
2,180
0
0
0.0
2024 Q1
2,288
1
0
437.1
2023 Q4
2,648
0
0
0.0
2023 Q3
2,570
0
0
0.0
2023 Q2
2,550
1
1
392.2
2023 Q1
2,188
0
0
0.0
2022 Q4
1,988
0
0
0.0
2022 Q3
1,708
0
0
0.0
2022 Q2
1,952
0
0
0.0
2022 Q1
1,740
0
0
0.0
2021 Q4
1,920
0
0
0.0
2021 Q3
2,132
3
1
1407.1
2021 Q2
2,078
0
0
0.0
2021 Q1
2,005
0
0
0.0
2020 Q4
2,047
0
0
0.0
2020 Q3
2,014
0
0
0.0
2020 Q1
2,155
0
0
0.0
2019 Q4
2,169
0
0
0.0
2019 Q3
2,047
0
0
0.0
2019 Q2
1,956
0
0
0.0
2019 Q1
1,972
0
0
0.0
2018 Q4
2,017
0
0
0.0
2018 Q3
1,960
0
0
0.0
2018 Q2
2,440
0
0
0.0
2018 Q1
2,285
0
0
0.0
2017 Q4
2,348
1
1
425.9
2017 Q3
2,692
0
0
0.0
2017 Q2
3,144
0
0
0.0
2017 Q1
3,024
0
0
0.0
2016 Q4
2,640
3
0
1136.4
2016 Q3
3,514
1
0
284.6
2016 Q2
2,832
0
0
0.0
2016 Q1
2,602
2
0
768.6
2015 Q4
2,031
0
0
0.0
2015 Q3
2,286
1
0
437.4
2015 Q2
2,292
0
0
0.0
2015 Q1
1,445
1
0
692.0
2014 Q4
1,497
0
0
0.0
2014 Q3
2,894
0
0
0.0
2014 Q2
3,901
0
0
0.0
2014 Q1
3,004
0
0
0.0
2013 Q4
2,843
0
0
0.0
2013 Q3
4,056
2
1
493.1
2013 Q2
3,088
0
0
0.0
2013 Q1
2,809
0
0
0.0
2012 Q4
3,332
0
0
0.0
2012 Q3
3,000
0
0
0.0
2012 Q2
3,308
0
0
0.0
2012 Q1
708
1
0
1412.4
2011 Q4
934
1
0
1070.7
2011 Q3
1,532
0
0
0.0
2011 Q2
2,474
0
0
0.0
2011 Q1
2,022
1
0
494.6
2010 Q4
2,256
0
0
0.0
2010 Q3
1,704
0
0
0.0
2010 Q2
2,096
0
0
0.0
2010 Q1
2,018
2
0
991.1
2009 Q4
2,106
0
0
0.0
2009 Q3
1,184
0
0
0.0
2009 Q2
876
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
4 on file
2026 · 1 incident
March 25, 2026OK · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerHANDTOOLS (NONPOWERED)
Employee using a hammer to tighten a bolt with a striker wrench. Hammer glanced off cover of crusher, smashing a finger between frame & handle of hammer. Did 1st aid, employee refused the er at that time, going home & later decided to go to a clinic having no fracture, received 3 stitches. Missed one day, returning on Friday 3/27/2026 with no restrictions.
2023 · 1 incident
May 5, 2023OK · Metal/Non-Metalstone finishing and sizing personnel, stone/rock cut/polish/saw operator, splitter, cutter, trimmerPOWERED HAULAGE
Stone Splitters #3 · Caught in, under or between a moving and a stationary object
Worker was leaving at the end of the shift & saw a pin on an excavator track sticking out. They & another worker tried to reinstall pin with the forks of a skidsteer & the worker got a finger pinched between the fork & the track, causing partial amputation of finger.
2020 · 1 incident
November 12, 2020OK · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDLING OF MATERIALS
Stone Splitters #3 · Caught in, under or between a moving and a stationary object
Approximately 8:30 am, a worker was stacking rock onto a pallet when they smashed a finger tip. We bandaged finger & employee said they wanted to continue to work. EE worked until noon then went home. EE came to work the next day & told us they had gone to the ER later that evening to check it out. They gave EE a shot for pain, splinted the finger & sent them home.
2014 · 1 incident
August 5, 2014OK · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanOTHER
The guys were packing up to leave for the day. They noticed co-worker not responding to them. They asked if he was ok, no response. Then he passed out. They called 911. He was transported to Sparks Hospital in Ft Smith, AR. Doctors 1st thought it was heat exhaustion, but now think it might be a blood clot or minor heart attack.