ACTIVE / OPERATOR PORTFOLIO

Iron Oak Eagle Ford LLC

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

MSHA OPERATOR ID0159333

MINE PORTFOLIO

2 of 2 mines and facilities

2025-01-01 – 2026-10-18. Active records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
Bigfoot Mine4105395 · Active6/8 quarters reportedAtascosa, TXSurface · MSHA: Construction Sand and Gravel0247,99224098.5
Dimmit Mine4105387 · Active6/8 quarters reportedDimmit, TXSurface · MSHA: Sand, Industrial NEC0251,771622104.0

LOCATION

Portfolio map

2 of 2 mines with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-18Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

86

9 significant & substantial (S&S)

  1. 2025 Q114
  2. 2025 Q24
  3. 2025 Q30
  4. 2025 Q440
  5. 2026 Q10
  6. 2026 Q227
  7. 2026 Q31
  8. 2026 Q4 *0

Accident records

2

0 records classified as fatality

  1. 2025 Q11
  2. 2025 Q20
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q10
  6. 2026 Q21
  7. 2026 Q30
  8. 2026 Q4 *0

Proposed penalties · USD

54,460.00

84 of 86 violations with amounts

  1. 2025 Q119,901
  2. 2025 Q2961
  3. 2025 Q3—
  4. 2025 Q414,631
  5. 2026 Q1—
  6. 2026 Q218,967
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

202.50

13 inspections · 13 with hours

  1. 2025 Q159.50
  2. 2025 Q237.25
  3. 2025 Q3—
  4. 2025 Q446.75
  5. 2026 Q1—
  6. 2026 Q252.75
  7. 2026 Q36.25
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q114319,901.0010359.5
2025-Q241961.0000337.3
2025-Q300—000—
2025-Q440414,631.0000246.8
2026-Q100—000—
2026-Q227118,967.0010452.8
2026-Q310—0016.3
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5177662
    Bigfoot Mine · 4105395

    56.4201(a)(2) · $151.00 proposed

  2. violation5177661
    Bigfoot Mine · 4105395

    56.14112(a)(1) · $151.00 proposed

  3. violation5177660
    Bigfoot Mine · 4105395

    56.12019 · $151.00 proposed

  4. violation5177659
    Bigfoot Mine · 4105395

    56.11001 · $151.00 proposed

  5. violation5177658
    Bigfoot Mine · 4105395

    56.20003(a) · $151.00 proposed

  6. violation5177657
    Bigfoot Mine · 4105395

    56.20003(b) · $151.00 proposed

  7. violation5177656
    Bigfoot Mine · 4105395

    56.14107(a) · $151.00 proposed

  8. violation5177655
    Bigfoot Mine · 4105395

    56.16001 · $151.00 proposed

  9. violation5177654
    Bigfoot Mine · 4105395

    56.12004 · $151.00 proposed

  10. violation5172043
    Dimmit Mine · 4105387

    56.4101 · $504.00 proposed

  11. violation5172042
    Dimmit Mine · 4105387

    56.20011 · $504.00 proposed

  12. violation5172041
    Dimmit Mine · 4105387

    56.15020 · $504.00 proposed

  13. violation5172040
    Dimmit Mine · 4105387

    56.14100(d) · $398.00 proposed

  14. violation5172038
    Dimmit Mine · 4105387

    56.18002 · $151.00 proposed

  15. violation5172037
    Dimmit Mine · 4105387

    46.9(i) · $151.00 proposed

  16. violation5172036
    Dimmit Mine · 4105387

    56.14100 · $151.00 proposed

  17. violation5172035
    Dimmit Mine · 4105387

    56.14107(a) · $151.00 proposed

  18. violation5172034
    Dimmit Mine · 4105387

    56.14205 · S&S · $245.00 proposed

  19. violation5172033
    Dimmit Mine · 4105387

    56.15014 · S&S · $366.00 proposed

  20. violation5172032
    Dimmit Mine · 4105387

    56.12004 · $177.00 proposed

  21. violation5172031
    Dimmit Mine · 4105387

    47.44(b) · $177.00 proposed

  22. violation5172030
    Dimmit Mine · 4105387

    47.44(b) · $177.00 proposed

  23. violation5172029
    Dimmit Mine · 4105387

    56.12032 · $177.00 proposed

  24. violation5172028
    Dimmit Mine · 4105387

    56.4104(a) · $177.00 proposed

  25. violation5172027
    Dimmit Mine · 4105387

    56.14112(a)(1) · $177.00 proposed

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-18.

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.