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Bison No 1 Metal/Non-Metal

Bison Materials LLC · Surface

Controlled by Spencer Gene Hopper; Lucas Hopper

Dewey, Washington County, OK · Active

MSHA Mine ID: 3402093

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Email me when a new MSHA incident is filed at Bison No 1.

Fatalities: 1
Total incidents: 4
Years on record: 2019–2025
Latest incident: Jul 2025

Compliance record

MSHA citations since 2010

201

citations

significant & substantial

$322,323

proposed penalties

$201,372

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	10,190	4	0	392.5
2025 Q1	1,085	2	1	1843.3
2024 Q4	1,019	0	0	0.0
2024 Q3	7,870	5	2	635.3
2024 Q2	8,214	0	0	0.0
2024 Q1	902	7	1	7760.5
2023 Q3	1,364	7	0	5132.0
2023 Q1	9,748	0	0	0.0

Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.

Fatalities at this mine

1 recorded

December 14, 2023 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech Fatality · MACHINERY

Bison Materials LLC · Caught in, under or between a moving and a stationary object

Miner was moving a rinse bucket to access a piece of metal that needed to be repaired and welded. As EE pulled the pin from the rinse bucket somehow the hydraulic cylinder gave way pinning the miner in between the bucket and a handrail. Resulting in the death of the miner.

Reportable incidents

3 on file (excluding fatalities above)

2025 · 1 incident

July 10, 2025 OK · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver MACHINERY

Bison Materials LLC · Fall from machine

An EE was trying to remove a bit from drill pipe on John Henry drill. IE put a pipe wrench on the bit & spun the wrench so that it was touching the ground. IE stood on the pipe wrench to keep it from moving. EE began slowly rotating the drill pipe & pipe wrench sprung upward & threw IE sideways causing EE to land on EE's side on the ground.

2024 · 1 incident

November 11, 2024 OK · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator STEPPING OR KNEELING ON OBJECT

Bison Materials LLC · Over-exertion (Not Elsewhere Classified)

The miner was climbing into their loader and heard something pop in their leg and then could not put weight on it. Other miners got them to the scale house and proceeded with ice on the site of pain. Miner was then sent to primary care for x-rays.

2019 · 1 incident

July 22, 2019 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech POWERED HAULAGE

Bison Materials LLC · Struck against a moving object

Mechanic was leaving the scale house on the access road to the quarry. Mechanic stated that EE "was only going 15mph and thought EE had a blowout and it jerked EE's truck (2003 GMC 1500) EE was driving to the left flipping EE where the truck came to rest on the cab upside down." Employee received stitches in EE's left eyebrow/temple area.