ALL STATUSES / CONTROLLER PORTFOLIO

Gregory L Osterhout

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

MSHA CONTROLLER ID0166123

MINE PORTFOLIO

4 of 4 mines and facilities

2025-01-01 – 2026-10-17. All statuses records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
Rocky Mountain Quartzite Quarry1000648 · IntermittentCassia, IDSurface · MSHA: Dimension Stone NEC——4018.3
TEXASTONE QUARRIES LLC4103795 · ActiveGlasscock, TXSurface · MSHA: Crushed, Broken Limestone NEC——16034.0
LIMELIGHT QUARRY4202289 · AbandonedBox Elder, UTSurface · MSHA: Dimension Sandstone——00—
TURQUOISE STONE QUARRY4202290 · AbandonedBox Elder, UTSurface · MSHA: Dimension Stone NEC——00—

LOCATION

Portfolio map

3 of 4 mines with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-17Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

20

1 significant & substantial (S&S)

  1. 2025 Q11
  2. 2025 Q23
  3. 2025 Q38
  4. 2025 Q44
  5. 2026 Q10
  6. 2026 Q24
  7. 2026 Q30
  8. 2026 Q4 *0

Accident records

0

0 records classified as fatality

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

Proposed penalties · USD

4,647.00

20 of 20 violations with amounts

  1. 2025 Q1193
  2. 2025 Q2453
  3. 2025 Q31,208
  4. 2025 Q42,010
  5. 2026 Q1—
  6. 2026 Q2783
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

52.25

8 inspections · 8 with hours

  1. 2025 Q17.50
  2. 2025 Q213.50
  3. 2025 Q38.00
  4. 2025 Q49.75
  5. 2026 Q10.50
  6. 2026 Q213.00
  7. 2026 Q3—
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q110193.000017.5
2025-Q230453.0000113.5
2025-Q3801,208.000028.0
2025-Q4412,010.000019.8
2026-Q100—0010.5
2026-Q240783.0000213.0
2026-Q300—000—
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5161454
    Rocky Mountain Quartzite Quarry · 1000648

    56.4201(a)(2) · $151.00 proposed

  2. inspectionF0332BD
    Rocky Mountain Quartzite Quarry · 1000648

    Regular Safety and Health Inspection · 4.8 on-site hours

  3. violation5173068
    TEXASTONE QUARRIES LLC · 4103795

    41.12 · $151.00 proposed

  4. violation5173067
    TEXASTONE QUARRIES LLC · 4103795

    56.14107(a) · $288.00 proposed

  5. violation5173066
    TEXASTONE QUARRIES LLC · 4103795

    47.44(a)(2) · $193.00 proposed

  6. inspectionF02C166
    TEXASTONE QUARRIES LLC · 4103795

    Regular Safety and Health Inspection · 8.3 on-site hours

  7. inspectionF02C14F
    TEXASTONE QUARRIES LLC · 4103795

    Compliance Follow-up Inspection · 0.5 on-site hours

  8. violation5006159
    TEXASTONE QUARRIES LLC · 4103795

    56.12028 · $193.00 proposed

  9. inspectionF02C149
    TEXASTONE QUARRIES LLC · 4103795

    Regular Safety and Health Inspection · 9.8 on-site hours

  10. violation5006158
    TEXASTONE QUARRIES LLC · 4103795

    56.12030 · $193.00 proposed

  11. violation5006157
    TEXASTONE QUARRIES LLC · 4103795

    56.14100(c) · S&S · $1,431.00 proposed

  12. violation5006156
    TEXASTONE QUARRIES LLC · 4103795

    56.14100(b) · $193.00 proposed

  13. inspectionF02665A
    TEXASTONE QUARRIES LLC · 4103795

    Compliance Follow-up Inspection · 0.0 on-site hours

  14. violation5007422
    TEXASTONE QUARRIES LLC · 4103795

    56.4201(a)(1) · $151.00 proposed

  15. violation5007421
    TEXASTONE QUARRIES LLC · 4103795

    50.30-1(g)(3) · $151.00 proposed

  16. violation5007420
    TEXASTONE QUARRIES LLC · 4103795

    50.30-1(g)(3) · $151.00 proposed

  17. violation5007419
    TEXASTONE QUARRIES LLC · 4103795

    46.9(b)(5) · $151.00 proposed

  18. inspectionF013216
    TEXASTONE QUARRIES LLC · 4103795

    Regular Safety and Health Inspection · 8.0 on-site hours

  19. violation5007418
    TEXASTONE QUARRIES LLC · 4103795

    56.4104(b) · $151.00 proposed

  20. violation5007417
    TEXASTONE QUARRIES LLC · 4103795

    56.4601 · $151.00 proposed

  21. violation5007416
    TEXASTONE QUARRIES LLC · 4103795

    56.14100(c) · $151.00 proposed

  22. violation5007415
    TEXASTONE QUARRIES LLC · 4103795

    56.14103(b) · $151.00 proposed

  23. violation5101110
    Rocky Mountain Quartzite Quarry · 1000648

    56.14100(b) · $151.00 proposed

  24. violation5101109
    Rocky Mountain Quartzite Quarry · 1000648

    56.9300(b) · $151.00 proposed

  25. violation5101108
    Rocky Mountain Quartzite Quarry · 1000648

    56.14100(b) · $151.00 proposed

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-17.

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

2 linked operators.

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