Data / Mines / Oklahoma / Lone Star Pryor PLT Mill & Qy
Lone Star Pryor PLT Mill & Qy: 282 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Lone Star Pryor PLT Mill & Qy is an active cement surface mine in Mayes County, Oklahoma, operated by Buzzi Unicem USA with 115 employees on MSHA's record (mine ID 3401289). Since January 1, 2022 MSHA inspectors issued 282 citations and orders there with $806,752 in proposed penalties, and 33 accident reports were filed there, with 31 injury or illness cases.
The request: Watch Lone Star Pryor PLT Mill & Qy (MSHA mine ID 3401289) in Mayes County, Oklahoma: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 3401289
- Status
- Active since November 20, 1979
- Main commodity
- Cement
- Mine type
- Surface
- County
- Mayes County, Oklahoma
- Nearest town
- Pryor
- Operator
- Buzzi Unicem USA
- Employees
- 115
- MSHA field office
- Norman Ok Field Office
- Citations and orders since January 1, 2022
- 282
- Significant and substantial
- 74 (26.2%)
- Closure orders
- 2
- High negligence or reckless
- 31
- Proposed penalties
- $806,752
- Amount paid so far
- $799,851
- Inspections
- 41
- Inspector hours on site
- 674
- Citations per inspection
- 6.88 (all mines 2.30)
- Accident reports
- 33
- Injury and illness cases
- 31
- Fatalities
- 0
- Latest MSHA record
- October 16, 2026
- Citations issued to contractors here
- 67 ($28,619 proposed)
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2022 | 44 | 16 | $35,680 | 12 |
| 2023 | 118 | 45 | $634,107 | 4 |
| 2024 | 47 | 5 | $71,195 | 3 |
| 2025 | 41 | 4 | $55,035 | 8 |
| 2026 | 32 | 4 | $10,735 | 4 |
Standards cited most at Lone Star Pryor PLT Mill & Qy
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 62 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 22 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 21 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 12 |
| 30 CFR 56.13021 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 10 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 9 |
| 30 CFR 47.41 | Hazard communication | 9 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.11002 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.4102 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.4104 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.16006 | Surface metal and nonmetal mines | 5 |
Injury and illness cases at Lone Star Pryor PLT Mill & Qy
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Permanent disability | 2 |
| Days away from work or restricted activity | 19 |
| No lost time, or an occupational illness | 10 |
What the accident reports at Lone Star Pryor PLT Mill & Qy describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 7 |
| Slip or fall of person | 7 |
| Handtools (nonpowered) | 5 |
| Machinery | 4 |
| Powered haulage | 3 |
| Other | 2 |
| Disorders (repeated trauma) | 2 |
| Fire | 1 |
| Exploding vessels under pressure | 1 |
| Ignition or explosion of gas or dust | 1 |
Equipment named in accident reports at Lone Star Pryor PLT Mill & Qy
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 5 |
| Milling machinery | 2 |
| Blow pipe | 1 |
| Forklift | 1 |
| Front-end loader | 1 |
| Hand tools (powered) | 1 |
| Mancar | 1 |
US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.