Data / Mines / Texas / Glasscock County
Mines in Glasscock County, Texas: 10 open mines
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
MSHA lists 10 open mines in Glasscock County, Texas, run by 9 operators and employing 72 people. Since January 1, 2022 its inspectors issued 120 citations and orders there with $29,890 in proposed penalties, and operators reported 6 injury or illness cases. The operators with the most open mines are OnCore Processing LLC; Texastone Quarries; Hirt Ventures LLC. Data from MSHA, November 6, 2026.
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- Open mines
- 10
- Operators
- 9
- Employees
- 72
- Active
- 5
- Intermittent
- 4
- New Mine
- 1
- Citations and orders since January 1, 2022
- 120
- Significant and substantial
- 11 (9.2%)
- Closure orders
- 1
- High negligence or reckless
- 7
- Proposed penalties
- $29,890
- Amount paid so far
- $25,593
- Inspections
- 70
- Inspector hours on site
- 379
- Citations per inspection
- 1.71 (all mines 2.30)
- Accident reports
- 6
- Injury and illness cases
- 6
- Fatalities
- 0
- Latest MSHA record
- September 4, 2026
Operators with the most open mines in Glasscock County, Texas
Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| OnCore Processing LLC | 2 | 40 | 16 | $2,539 | 2 |
| Texastone Quarries | 1 | 6 | 30 | $6,101 | 1 |
| Hirt Ventures LLC | 1 | 4 | 24 | $10,046 | 0 |
| Basin Rock Products, LLC | 1 | 3 | 21 | $7,106 | 0 |
| Laredo Paving Inc | 1 | 6 | 14 | $2,090 | 1 |
| Csa Materials Inc | 1 | 4 | 11 | $1,555 | 2 |
| NM Energy LLC | 1 | 5 | 3 | $453 | 0 |
| Hoelscher Crushed Stone, LLC | 1 | 2 | 1 | $0 | 0 |
| Thompson Materials | 1 | 2 | 0 | $0 | 0 |
Operators with the most citations in Glasscock County, Texas
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Texastone Quarries | 1 | 6 | 30 | $6,101 | 1 |
| Hirt Ventures LLC | 1 | 4 | 24 | $10,046 | 0 |
| Basin Rock Products, LLC | 1 | 3 | 21 | $7,106 | 0 |
| OnCore Processing LLC | 2 | 40 | 16 | $2,539 | 2 |
| Laredo Paving Inc | 1 | 6 | 14 | $2,090 | 1 |
| Csa Materials Inc | 1 | 4 | 11 | $1,555 | 2 |
| NM Energy LLC | 1 | 5 | 3 | $453 | 0 |
| Hoelscher Crushed Stone, LLC | 1 | 2 | 1 | $0 | 0 |
| Thompson Materials | 1 | 2 | 0 | $0 | 0 |
Mines with the most citations
Open mines, ranked by citations and orders since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Texastone Quarries LLC | Texastone Quarries | Glasscock County, TX | Crushed, broken limestone | 6 | 30 |
| Hirt Ventures LLC | Hirt Ventures LLC | Glasscock County, TX | Crushed, broken stone | 4 | 24 |
| Bronte Pit | Basin Rock Products, LLC | Glasscock County, TX | Crushed, broken limestone | 3 | 21 |
| Crusher Lu300-Lu400 | Laredo Paving Inc | Glasscock County, TX | Crushed, broken stone | 6 | 14 |
| T-Rex | Csa Materials Inc | Glasscock County, TX | Crushed, broken limestone | 4 | 11 |
| OnCore6 | OnCore Processing LLC | Glasscock County, TX | Construction sand and gravel | 20 | 9 |
| OnCore3B | OnCore Processing LLC | Glasscock County, TX | Sand, common | 20 | 7 |
| G158 | NM Energy LLC | Glasscock County, TX | Crushed, broken limestone | 5 | 3 |
| FM 1357 Schwartz Pit | Hoelscher Crushed Stone, LLC | Glasscock County, TX | Crushed, broken stone | 2 | 1 |
| Westrock | Thompson Materials | Glasscock County, TX | Crushed, broken stone | 2 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Crushed, broken stone | 4 | 40% |
| Crushed, broken limestone | 4 | 40% |
| Construction sand and gravel | 1 | 10% |
| Sand, common | 1 | 10% |
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 | 10 | 0 | $1,340 | 1 |
| 2023 | 8 | 1 | $1,156 | 2 |
| 2024 | 35 | 3 | $6,341 | 1 |
| 2025 | 53 | 6 | $18,885 | 2 |
| 2026 | 14 | 1 | $2,168 | 0 |
Standards cited most at mines in Glasscock County, Texas
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 | 12 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 11 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.4101 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.18010 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.3131 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.16006 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14201 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 2 |
Injury and illness cases at mines in Glasscock County, Texas
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 3 |
| No lost time, or an occupational illness | 3 |
What the accident reports at mines in Glasscock County, Texas describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Powered haulage | 3 |
| Handling of materials | 2 |
| Machinery | 1 |
Equipment named in accident reports at mines in Glasscock County, Texas
| Equipment | Reports |
|---|---|
| Front-end loader | 2 |
| Conveyor | 1 |
| Hand tools (not powered) | 1 |
| Pump | 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.