Data / Mines / Pro Frac Holding Corp
Pro Frac Holding Corp: 7 open mines, 353 MSHA citations
Pro Frac Holding Corp (MSHA controller ID 0171280) controls 7 open mines through 1 operator, with 378 employees in 3 states, mostly sand, common. Since January 1, 2022 MSHA issued 353 citations and orders at those mines with $164,349 in proposed penalties, and operators reported 32 injury or illness cases, 1 of them fatal. Data from MSHA, November 6, 2026.
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- MSHA controller ID
- 0171280
- Open mines
- 7
- Operators
- 1
- Employees
- 378
- States
- 3
- Citations and orders since January 1, 2022
- 353
- Significant and substantial
- 67 (19.0%)
- Closure orders
- 5
- High negligence or reckless
- 9
- Proposed penalties
- $164,349
- Amount paid so far
- $159,362
- Inspections
- 101
- Inspector hours on site
- 1,616
- Citations per inspection
- 3.50 (all mines 2.30)
- Accident reports
- 32
- Injury and illness cases
- 32
- Fatalities
- 1
- Latest MSHA record
- October 13, 2026
Operators under Pro Frac Holding Corp
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Alpine Silica, LLC | 7 | 378 | 353 | $164,349 | 32 |
Mines with the most citations
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Alpine Silica-Kermit | Alpine Silica, LLC | Winkler County, TX | Sand, common | 75 | 96 |
| River Ridge | Alpine Silica, LLC | Miller County, AR | Sand, common | 60 | 76 |
| Alpine Silica-Monahans | Alpine Silica, LLC | Ector County, TX | Construction sand and gravel | 130 | 67 |
| Alpine Silica-San Antonio | Alpine Silica, LLC | Bexar County, TX | Sand, industrial | 25 | 42 |
| Sunny Point | Alpine Silica, LLC | Caddo Parish, LA | Sand, common | 24 | 27 |
| Hat Creek | Alpine Silica, LLC | Caddo Parish, LA | Sand, common | 44 | 26 |
| Alpine Silica-Lamesa | Alpine Silica, LLC | Dawson County, TX | Sand, industrial | 20 | 19 |
States
Commodities
| Main commodity | Open mines |
|---|---|
| Sand, common | 4 |
| Sand, industrial | 2 |
| Construction sand and gravel | 1 |
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 | 108 | 27 | $73,945 | 9 |
| 2023 | 86 | 25 | $58,839 | 8 |
| 2024 | 57 | 8 | $10,856 | 7 |
| 2025 | 67 | 2 | $12,458 | 3 |
| 2026 | 35 | 5 | $8,251 | 5 |
Standards cited most at mines controlled by Pro Frac Holding Corp
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 56.14107 | Surface metal and nonmetal mines | 33 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 30 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 25 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 21 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 16 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 14 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.4200 | Surface metal and nonmetal mines | 10 |
| 30 CFR 47.41 | Hazard communication | 9 |
| 30 CFR 56.12030 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.4101 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 7 |
Injury and illness cases at mines controlled by Pro Frac Holding Corp
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Fatality | 1 |
| Days away from work or restricted activity | 17 |
| No lost time, or an occupational illness | 14 |
What the accident reports at mines controlled by Pro Frac Holding Corp describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 9 |
| Slip or fall of person | 7 |
| Powered haulage | 6 |
| Handtools (nonpowered) | 4 |
| Machinery | 3 |
| Disorders (physical agents) | 1 |
| Explosives and breaking agents | 1 |
| Other | 1 |
Equipment named in accident reports at mines controlled by Pro Frac Holding Corp
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 4 |
| Forklift | 3 |
| Front-end loader | 3 |
| Hand tools (powered) | 1 |
| Fan | 1 |
| Machine | 1 |
| Man lift | 1 |
| Pump | 1 |
| Shovel | 1 |
| Screen | 1 |
Updated November 6, 2026. Read from US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets. 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.