ACTIVE / OPERATOR PORTFOLIO

Iron Oak Atascosa LLC

Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.

MSHA OPERATOR ID0155113

MINE PORTFOLIO

1 of 1 mines and facilities

2025-01-01 – 2026-10-13. Active records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
Atascosa4105317 · Active6/8 quarters reportedAtascosa, TXSurface · MSHA: Sand, Industrial NEC0401,864834353.5

LOCATION

Mine location

1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-13Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

83

17 significant & substantial (S&S)

  1. 2025 Q18
  2. 2025 Q27
  3. 2025 Q34
  4. 2025 Q40
  5. 2026 Q147
  6. 2026 Q21
  7. 2026 Q316
  8. 2026 Q4 *0

Accident records

4

1 records classified as fatality

  1. 2025 Q10
  2. 2025 Q21
  3. 2025 Q31
  4. 2025 Q40
  5. 2026 Q10
  6. 2026 Q20
  7. 2026 Q32
  8. 2026 Q4 *0

Proposed penalties · USD

391,338.00

65 of 83 violations with amounts

  1. 2025 Q12,237
  2. 2025 Q2906
  3. 2025 Q3864
  4. 2025 Q4—
  5. 2026 Q1387,331
  6. 2026 Q2—
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

353.50

14 inspections · 14 with hours

  1. 2025 Q134.25
  2. 2025 Q2183.25
  3. 2025 Q333.00
  4. 2025 Q4—
  5. 2026 Q172.75
  6. 2026 Q25.00
  7. 2026 Q325.25
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q1822,237.0000234.3
2025-Q270906.00115183.3
2025-Q341864.0010133.0
2025-Q400—000—
2026-Q14710387,331.0000172.8
2026-Q210—0035.0
2026-Q3164—20225.3
2026-Q4 *00—000—

Most cited CFR sections

All violations issued in the selected period. Counts combine subsections.

Safety activity

  1. violation5170344
    Atascosa · 4105317

    56.14109 · S&S

  2. violation9748303
    Atascosa · 4105317

    56.14207

  3. violation9748302
    Atascosa · 4105317

    56.14132(b)(2) · S&S

  4. violation5170342
    Atascosa · 4105317

    56.20003(a)

  5. violation5170341
    Atascosa · 4105317

    56.20003(a) · S&S

  6. violation9748301
    Atascosa · 4105317

    56.12008

  7. violation5170343
    Atascosa · 4105317

    56.12032

  8. inspectionF017E2D
    Atascosa · 4105317

    103 (g) Written Notification Hazard Complaint Inspectio · 0.0 on-site hours

  9. violation9748300
    Atascosa · 4105317

    56.12008

  10. violation9748299
    Atascosa · 4105317

    56.15007

  11. violation9748298
    Atascosa · 4105317

    47.41(a)

  12. violation9748297
    Atascosa · 4105317

    56.4402

  13. violation9748296
    Atascosa · 4105317

    56.14100(a)

  14. violation9748295
    Atascosa · 4105317

    56.4201(a)(2)

  15. violation9748294
    Atascosa · 4105317

    56.4201(a)(2)

  16. violation5170340
    Atascosa · 4105317

    56.12047

  17. violation5170339
    Atascosa · 4105317

    56.14100(b) · S&S

  18. inspectionF03BB5D
    Atascosa · 4105317

    Regular Safety and Health Inspection · 25.3 on-site hours

  19. accident220262580014
    Atascosa · 4105317

    POWERED HAULAGE · DAYS AWAY FROM WORK ONLY

    Accident narrative

    A articulated haul truck was dumping a load of fill material when the bed the chain connectors for the bed tailgate snapped off leaving the gate closed. The operator was unaware that the load was not dumping and continued to raise the bed. This caused the weight of the load to shift onto the back of the truck resulting in the cab lifting up and rolling onto its passenger side.

  20. accident220262540008
    Atascosa · 4105317

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    A mechanic was tasked with replacing digging teeth on an excavator. When the mechanic was picking up one of the teeth it slipped and caught EE's left small finger causing a fracture. The mechanic continued to work. While using a soft face sledge hammer to remove a tooth a shard of metal became airborne and struck the mechanic in the groin causing a laceration.

  21. inspection6932043
    Atascosa · 4105317

    Spot Inspection · 1.0 on-site hours

  22. inspection6936198
    Atascosa · 4105317

    Verbal Hazard Complaint Inspections · 2.3 on-site hours

  23. inspectionF02FE5A
    Atascosa · 4105317

    Verbal Hazard Complaint Inspections · 1.8 on-site hours

  24. violation5172694
    Atascosa · 4105317

    56.20010

  25. violation5003359
    Atascosa · 4105317

    46.9(b)(2) · $151.00 proposed

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-13.

Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.

Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.

S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.

Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.

Portfolio totals use current mine membership, including events before the current owner or operator's tenure.

CFR headings link to the current Title 30 index; they are not historical legal determinations.

SELECTED PORTFOLIO

1 linked controller.

Relationships reflect the selected mine status and current MSHA controller/operator fields.