Coal production
0reported short tons
ACTIVE / CONTROLLER PORTFOLIO
David Brown
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA CONTROLLER IDM00822
MINE PORTFOLIO
6 of 6 mines and facilities
2025-01-01 – 2026-10-13. Active records; production reporting is not required.
Material, method and type filters apply to this table. The portfolio’s status applies to the entire page. GEM fields describe their own release, not the selected MSHA year.
| Mine | Location / type | Coal · short tons | Hours worked | Violations | Accident records | On-site inspection hours |
|---|---|---|---|---|---|---|
| Big Horn Basin Mines4800974 · Active6/8 quarters reported | Big Horn, WYSurface · MSHA: Bentonite | 0 | 34,783 | 5 | 0 | 35.3 |
| Lucerne Mill4801191 · Active6/8 quarters reported | Hot Springs, WYSurface · MSHA: Bentonite | 0 | 85,264 | 2 | 4 | 13.5 |
| Magnet Cove Mill4800602 · Active6/8 quarters reported | Big Horn, WYFacility · MSHA: Bentonite | 0 | 179,312 | 7 | 3 | 26.3 |
| Magnet Cove Mine4800603 · Active6/8 quarters reported | Big Horn, WYSurface · MSHA: Bentonite | 0 | 157,621 | 7 | 2 | 28.0 |
| Sage Creek Mill4800612 · Active6/8 quarters reported | Big Horn, WYFacility · MSHA: Bentonite | 0 | 66,482 | 1 | 4 | 17.5 |
| Stucco Mill4800611 · Active6/8 quarters reported | Big Horn, WYFacility · MSHA: Bentonite | 0 | 116,601 | 2 | 3 | 34.0 |
Production and hours sum available quarterly reports. — means unavailable; zero safety records means none in the selected imported period. Ownership reflects the current MSHA record.
LOCATION
Portfolio map
6 of 6 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Big Horn Basin Mines44.51139, -108.06556Open map ↗
- Lucerne Mill43.73500, -108.17194Open map ↗
- Magnet Cove Mill44.54278, -108.07361Open map ↗
- Magnet Cove Mine44.54278, -108.07361Open map ↗
- Sage Creek Mill44.84556, -108.43389Open map ↗
- Stucco Mill44.51139, -108.06556Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-13. All 6 mines listed under this controller were checked; 6 have reports in the available quarters. Totals use current ownership.
Hours worked
640,063reported employee hours
Tons per hour
0.00production ÷ hours worked
Missing values appear as —. Totals use available reports. Tons per hour requires production and hours for the same quarters and a nonzero hours total. * Striped bars mark partial mine coverage or an incomplete quarter. See the table for coverage.
Quarterly data and reporting coverage
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | 0 | 107,130 | 0.00 | 211 | 6/6 mines reporting |
| 2025 Q2 | 0 | 107,013 | 0.00 | 206 | 6/6 mines reporting |
| 2025 Q3 | 0 | 108,981 | 0.00 | 207 | 6/6 mines reporting |
| 2025 Q4 | 0 | 103,813 | 0.00 | 207 | 6/6 mines reporting |
| 2026 Q1 | 0 | 109,584 | 0.00 | 209 | 6/6 mines reporting |
| 2026 Q2 | 0 | 103,542 | 0.00 | 205 | 6/6 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
240 significant & substantial (S&S)
Accident records
160 records classified as fatality
Proposed penalties · USD
3,171.0021 of 24 violations with amounts
On-site inspection hours
154.5022 inspections · 22 with hours
Counts are published records, including contractor records. * The quarter was incomplete at the snapshot date; recent counts may rise as reports arrive. — means no reported amount or hours. Portfolio totals use current membership.
Quarterly safety data
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 0 | 0 | — | 4 | 0 | 2 | 2.3 |
| 2025-Q2 | 0 | 0 | — | 1 | 0 | 1 | 4.5 |
| 2025-Q3 | 6 | 0 | 906.00 | 3 | 0 | 5 | 40.8 |
| 2025-Q4 | 6 | 0 | 906.00 | 1 | 0 | 6 | 49.5 |
| 2026-Q1 | 0 | 0 | — | 1 | 0 | 0 | — |
| 2026-Q2 | 0 | 0 | — | 4 | 0 | 2 | 13.5 |
| 2026-Q3 | 12 | 0 | 1,359.00 | 2 | 0 | 6 | 44.0 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- Lucerne Mill · 4801191
HANDLING OF MATERIALS · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
EE was experiencing back pain that EE believed may have occurred from opening a door. EE left work early and saw a medical provider. The medical provider administered a muscle relaxer and EE was put on restrictive duty.
- Big Horn Basin Mines · 4800974
Regular Safety and Health Inspection · 8.0 on-site hours
- Big Horn Basin Mines · 4800974
56.4200(b)(2)
- Big Horn Basin Mines · 4800974
56.4200(b)(2)
- Magnet Cove Mill · 4800602
Regular Safety and Health Inspection · 9.0 on-site hours
- Magnet Cove Mill · 4800602
56.12028 · $151.00 proposed
- Magnet Cove Mill · 4800602
56.12032 · $151.00 proposed
- Magnet Cove Mill · 4800602
56.12018 · $151.00 proposed
- Magnet Cove Mine · 4800603
Regular Safety and Health Inspection · 9.0 on-site hours
- Magnet Cove Mine · 4800603
56.14100(a)
- Magnet Cove Mine · 4800603
56.14100(b) · $151.00 proposed
- Magnet Cove Mine · 4800603
56.14207 · $151.00 proposed
- Stucco Mill · 4800611
Regular Safety and Health Inspection · 18.0 on-site hours
- Stucco Mill · 4800611
56.14115(b) · $151.00 proposed
- Stucco Mill · 4800611
56.14100(b) · $151.00 proposed
- Sage Creek Mill · 4800612
Compliance Follow-up Inspection · 0.0 on-site hours
- Sage Creek Mill · 4800612
50.20-1 · $151.00 proposed
- Stucco Mill · 4800611
POWERED HAULAGE · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
EE went to a chiropractor with lower back pain on 7/30/26. EE was treated by the chiropractor for the lower back pain. The chiropractor diagnosed the EE with lower back pain due to a repetitive injury from operation of a forklift truck.
- Magnet Cove Mill · 4800602
Compliance Follow-up Inspection · 0.0 on-site hours
- Magnet Cove Mill · 4800602
50.20-1 · $151.00 proposed
- Sage Creek Mill · 4800612
HANDLING OF MATERIALS · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Employee was performing maintenance on the skid steer. The cab of the skid steer was raised. The door was left open when raising the cab. The door closed on the employee's finger. The tip of finger was lacerated and the fingernail came off the finger.
- Stucco Mill · 4800611
POWERED HAULAGE · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Material from a broken bag was on the conveyor line. The employee stopped the conveyor and was pushing material down between two conveyors. The employee turned on the conveyor while EE's hand was still in the material. The employee's hand and arm were caught in the conveyor. The employee's hand and arm sustained swelling, bruising, and an abrasion.
- Lucerne Mill · 4801191
Regular Safety and Health Inspection · 4.0 on-site hours
- Sage Creek Mill · 4800612
Regular Safety and Health Inspection · 9.5 on-site hours
- Sage Creek Mill · 4800612
HANDLING OF MATERIALS · DYS AWY FRM WRK & RESTRCTD ACT
Accident narrative
Employee reached across the bag sealer to adjust the sealer height. The employee had their arm extended while operating the adjustment handle. While operating the adjustment handle the employee felt something pull or tear in their right arm. The employee was diagnosed with a torn bicep.
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 operator.
Relationships reflect the selected mine status and current MSHA controller/operator fields.