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 – 2026-10-18. All statuses records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
Rocky Mountain Quartzite Quarry1000648 · Intermittent6/8 quarters reportedCassia, IDSurface · MSHA: Dimension Stone NEC028,1804018.3
TEXASTONE QUARRIES LLC4103795 · Active6/8 quarters reportedGlasscock, TXSurface · MSHA: Crushed, Broken Limestone NEC028,23216034.0
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 – 2026-10-18Applies 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—
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

2 linked operators.

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