Mining Incidents

Pryor Stone #2 Metal/Non-Metal

Pryor Stone Inc · Surface
Pryor, Mayes County, OK  ·  Active
MSHA Mine ID: 3400530

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Fatalities
0
Total incidents
20
Years on record
2000–2025
Latest incident
Nov 2025
Compliance record
MSHA citations since 2000
359
citations
108
significant & substantial
$221,463
proposed penalties
$183,464
paid to date
Source: MSHA violations data, updated weekly.
Quarterly safety rates
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 21,285 6 1 281.9
2025 Q3 21,175 0 0 0.0
2025 Q2 18,571 8 3 430.8
2025 Q1 20,996 4 0 190.5
2024 Q4 19,347 0 0 0.0
2024 Q3 20,187 1 0 49.5
2024 Q2 18,947 0 0 0.0
2024 Q1 17,480 0 0 0.0
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.

Reportable incidents

20 on file

2025 · 1 incident

November 19, 2025 OK · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Pryor Stone Inc · Over-exertion (Not Elsewhere Classified)

Employee was climbing up ladder on haul truck.

2024 · 1 incident

March 4, 2024 OK · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver STRIKING OR BUMPING
Pryor Stone Inc · Struck against stationary object

Swinging ladder step.

2020 · 1 incident

June 30, 2020 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Pryor Stone Inc · Struck by flying object

The Employee was trying to remove a loader tooth for a bucket, when the employee used a hammer to hit the tooth a piece of the tooth broke off and flew into the employee's leg.

2019 · 1 incident

September 9, 2019 OK · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Pryor Stone Inc · Fall from machine

No lost time under medical diagnosis until 11-13-2019, for possible rotator cuff injury.

2016 · 2 incidents

October 6, 2016 OK · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Pryor Stone Inc · Caught in, under or between (Not Elsewhere Classified)

The employee was helping change a screen when EE smashed a finger between the old screen being removed and the handrail. The employee received stitches in the middle finger of left hand.

February 12, 2016 OK · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Pryor Stone Inc · Struck by... (Not Elsewhere Classified)

Employee was helping pull a conveyor belt on when the rope broke, hitting EE on the right side of the face. Diagnostic only thru 2/15. Released for light duty on 2/18/2016.

2013 · 2 incidents

September 26, 2013 OK · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Pryor Stone Inc · Over-exertion (Not Elsewhere Classified)

The claimed injury was not reported to the company until 12/23/2013. The injury was a result of horseplay involving individuals' physical contact (punching, shoving, and lifting off the ground). The activity was not work related and resulted in a lower back strain (?) to an employee that previously has had back surgery.

July 3, 2013 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Pryor Stone Inc · Struck by falling object

While working on a Cat 773B Haul truck, someone bumped a 50 ton jack that was not under a load. The jack fell over striking the injured's hand and broke two fingers.

2012 · 1 incident

August 23, 2012 OK · Metal/Non-Metal driller, highwall operator, highwall drill operator HANDLING OF MATERIALS
Pryor Stone Inc · Caught in, under or between a moving and a stationary object

While servicing a water pump on a highway drill, a faulty hydraulic motor engaged while the driller was inspecting the belts and pulleys. His three fingers (index, middle and ring) were trapped between the belt and pulley severing the tips to the first knuckle.

2010 · 1 incident

December 9, 2010 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Pryor Stone Inc · Caught in, under or between a moving and a stationary object

While cleaning out the Hazmag Crusher, the injured threw a rock out and caught his finger between the crusher side and the rock, mashing his finger requiring stitches to close.

2009 · 1 incident

October 14, 2009 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Pryor Stone Inc · Fall from machine

While dismounting from a Bobcat during rain and muddy conditions, the EE's foot slipped causing him to fall trapping his leg and injuring his right knee. He has continued to work on light duty "Restricted Work Activity" and will be operated on 01/27/10.

2007 · 1 incident

March 10, 2007 OK · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor HANDLING OF MATERIALS
Pryor Stone Inc · Caught in, under or between (Not Elsewhere Classified)

Left hand - tips of digit 3 & 4 caught in conveyor belt.

2005 · 1 incident

March 24, 2005 OK · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE
Pryor Stone Inc · Caught in, under or between running or meshing objects

While performing maintenance on the "chips" conveyor, the injured manually advanced the belt & it rolled backward catching the tip of his little finger causing it to be cut requiring stitches & medications.

2002 · 2 incidents

November 12, 2002 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Pryor Stone Inc · Struck by flying object

PLANT OPERATOR WAS CHIPPING ON A HAMMER ON THE SPOKANE CRUSHER. WHEN EE APPROACHED AREA IN HIS PICK UP TRUCK TO DELIVER BOLTS. SOMETHING FLEW INSIDE CAB STRIKING HIS IN EYE. THOUGHT HE HAD REM OVED OBJECT, HOWEVER, PAIN INCREASED AND LATER SOUGHT MEDICAL TREATMENT FOR EYE INJURY.

October 14, 2002 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Pryor Stone Inc · Fall to the walkway or working surface

EE TIGHTENING BOLT ON ROCK CRUSHER. THE WRENCH SLIPPED OFF AND HE FELL BACKWARDS HITTING HANDRAIL. HE CONTINUED FALLING BACKWARDS AND CAUGHT FULL WEIGHT OF BODY ON LEFT WRIST EXTENDED BEHIND H IMSELF TO BREAK FALL ONTO WALKWAY.

2001 · 3 incidents

October 16, 2001 OK · Metal/Non-Metal greaser, grease man, oiler, lube man, dragline oiler MACHINERY
Pryor Stone Inc · Caught in, under or between a moving and a stationary object

EE LIFTING A HEAD OFF OF A 3412 ENGINE WITH ON ELECTRIC CHAIN HOIST AND CHAIN. HEAD WAS NOT BALANCED AND THE CHAIN SLIPPED PINCHING THE EE HIT HAND BETWEEN THE CHAIN AND THE HOOK ON THE ELECTR IC HOIST.

August 20, 2001 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Pryor Stone Inc · Struck by flying object

WHILE STRIKING A TRACK RAIL WITH A HAMMER, A PIECE OF THE RAIL CHIPPED OFF AND STRUCK LEFT HAND CUTTING NEAR THUMB.

June 5, 2001 OK · Metal/Non-Metal truck driver POWERED HAULAGE
Pryor Stone Inc · Struck by... (Not Elsewhere Classified)

EE STUCK FINGER INTO A.C. FAN CAUSING CUTS REQUIRING STITCHES TO MIDDLE FINGER OF RIGHT HAND. TRUCK HAD JUST FINISHED INSPECTION BY MSHA NO LESSTHAN 30 MIN. PRIOR TO ACCIDENT.

2000 · 2 incidents

September 30, 2000 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Pryor Stone Inc · Struck by... (Not Elsewhere Classified)

TAKING HAMMERS OUT OF CRUSHER. PIN CUT THUMB

February 3, 2000 OK · Metal/Non-Metal greaser, grease man, oiler, lube man, dragline oiler OTHER
Pryor Stone Inc · (Not Elsewhere Classified)

EE COMPLAINED OF SEVERE CHEST PAINS, WAS TRANSPORTED BY EE TO LOCAL HOSPITAL. AND THEN ON TO TULSA VIA HELICOPTER, AFTER BEING TREATED FOR A HEART ATTACK.