Data / Mines / Cornejo & Sons LLC
Cornejo & Sons LLC: 11 open mines, 157 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Cornejo & Sons LLC (MSHA operator ID 0117666) operates 11 open mines with 91 employees in Kansas, Oklahoma, mostly crushed, broken limestone. Since January 1, 2022 MSHA inspectors issued it 157 citations and orders with $51,306 in proposed penalties, and it reported 8 injury or illness cases. Data from MSHA, November 6, 2026.
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- MSHA operator ID
- 0117666
- Open mines
- 11
- Employees at open mines
- 91
- States
- Kansas, Oklahoma
- Parent company
- Summit Materials LLC
- Citations and orders since January 1, 2022
- 157
- Significant and substantial
- 18 (11.5%)
- Closure orders
- 3
- High negligence or reckless
- 9
- Proposed penalties
- $51,306
- Amount paid so far
- $51,141
- Inspections
- 110
- Inspector hours on site
- 784
- Citations per inspection
- 1.43 (all mines 2.30)
- Accident reports
- 8
- Injury and illness cases
- 8
- Fatalities
- 0
- Latest MSHA record
- October 22, 2026
Open mines of Cornejo & Sons LLC
Ranked by citations since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Stewart Stone Mitchell | Cornejo & Sons LLC | Pawnee County, OK | Crushed, broken limestone | 25 | 54 |
| Wichita Sand and Gravel | Cornejo & Sons LLC | Sedgwick County, KS | Construction sand and gravel | 10 | 44 |
| Oxford Sand and Gravel | Cornejo & Sons LLC | Sumner County, KS | Construction sand and gravel | 8 | 25 |
| Severy Quarry | Cornejo & Sons LLC | Greenwood County, KS | Crushed, broken limestone | 8 | 20 |
| Durbin Quarry | Cornejo & Sons LLC | Elk County, KS | Crushed, broken limestone | 9 | 15 |
| Portable Plant #3 | Cornejo & Sons LLC | Wilson County, KS | Crushed, broken limestone | 11 | 12 |
| Portable Plant #6 | Cornejo & Sons LLC | Montgomery County, KS | Crushed, broken limestone | 10 | 9 |
| Portable Plant #2 | Cornejo & Sons LLC | Crawford County, KS | Crushed, broken stone | 3 | 9 |
| Coffeyville Quarry | Cornejo & Sons LLC | Labette County, KS | Crushed, broken limestone | 4 | 2 |
| Portable Plant #7 | Cornejo & Sons LLC | Bourbon County, KS | Crushed, broken limestone | 2 | 1 |
| Fort Scott Quarry | Cornejo & Sons LLC | Bourbon County, KS | Crushed, broken limestone | 1 | 0 |
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 | 38 | 8 | $14,386 | 2 |
| 2023 | 23 | 3 | $5,502 | 2 |
| 2024 | 20 | 1 | $3,632 | 0 |
| 2025 | 38 | 3 | $7,281 | 1 |
| 2026 | 38 | 3 | $20,505 | 3 |
Standards cited most at Cornejo & Sons LLC
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 56.14100 | Surface metal and nonmetal mines | 17 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 14 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.4102 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.12001 | Surface metal and nonmetal mines | 4 |
| 30 CFR 46.9 | Training at sand, gravel and surface stone mines | 4 |
| 30 CFR 46.11 | Training at sand, gravel and surface stone mines | 3 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 3 |
Injury and illness cases at Cornejo & Sons LLC
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 8 |
What the accident reports at Cornejo & Sons LLC describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handtools (nonpowered) | 3 |
| Handling of materials | 3 |
| Powered haulage | 2 |
Equipment named in accident reports at Cornejo & Sons LLC
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 3 |
| Conveyor | 1 |
| Ore haulage trucks - off highway trucks | 1 |
| Front-end loader | 1 |
Commodities
| Main commodity | Open mines |
|---|---|
| Crushed, broken limestone | 8 |
| Construction sand and gravel | 2 |
| Crushed, broken stone | 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.