Coal production
0reported short tons
ACTIVE / CONTROLLER PORTFOLIO
Berkshire Hathaway Inc
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA CONTROLLER IDM13643
MINE PORTFOLIO
4 of 4 mines and facilities
2025-01-01 – 2026-10-18. 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 |
|---|---|---|---|---|---|---|
| Denton Pits4100368 · Active6/8 quarters reported | Denton, TXSurface · MSHA: Common Clays NEC | 0 | 21,590 | 13 | 0 | 25.3 |
| Edmond Pit & Plant3400110 · Active6/8 quarters reported | Oklahoma, OKSurface · MSHA: Clay, Ceramic, Refractory Mnls. | 0 | 12,928 | 1 | 0 | 10.8 |
| Jordan Plant0103353 · Active6/8 quarters reported | St Clair, ALSurface · MSHA: Common Shale | 0 | 5,560 | 0 | 0 | 27.0 |
| MALVERN MINING0300132 · Active6/8 quarters reported | Hot Spring, ARSurface · MSHA: Fire Clay | 0 | 32,979 | 12 | 1 | 35.5 |
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
4 of 4 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Denton Pits33.18583, -97.13778Open map ↗
- Edmond Pit & Plant35.60306, -97.50722Open map ↗
- Jordan Plant33.54750, -86.51611Open map ↗
- MALVERN MINING34.35056, -92.81972Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. All 4 mines listed under this controller were checked; 4 have reports in the available quarters. Totals use current ownership.
Hours worked
73,057reported 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 | 12,487 | 0.00 | 29 | 4/4 mines reporting |
| 2025 Q2 | 0 | 12,637 | 0.00 | 28 | 4/4 mines reporting |
| 2025 Q3 | 0 | 13,617 | 0.00 | 28 | 4/4 mines reporting |
| 2025 Q4 | 0 | 9,654 | 0.00 | 22 | 4/4 mines reporting |
| 2026 Q1 | 0 | 13,930 | 0.00 | 29 | 4/4 mines reporting |
| 2026 Q2 | 0 | 10,732 | 0.00 | 26 | 4/4 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
260 significant & substantial (S&S)
Accident records
10 records classified as fatality
Proposed penalties · USD
3,615.0023 of 26 violations with amounts
On-site inspection hours
98.5020 inspections · 20 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 | 1 | 0 | 151.00 | 0 | 0 | 2 | 11.0 |
| 2025-Q2 | 7 | 0 | 1,057.00 | 0 | 0 | 4 | 25.8 |
| 2025-Q3 | 0 | 0 | — | 1 | 0 | 3 | 17.3 |
| 2025-Q4 | 6 | 0 | 906.00 | 0 | 0 | 4 | 20.3 |
| 2026-Q1 | 0 | 0 | — | 0 | 0 | 2 | 3.0 |
| 2026-Q2 | 11 | 0 | 1,350.00 | 0 | 0 | 3 | 14.3 |
| 2026-Q3 | 1 | 0 | 151.00 | 0 | 0 | 2 | 7.0 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- MALVERN MINING · 0300132
56.14132(a) · $151.00 proposed
- Denton Pits · 4100368
Regular Safety and Health Inspection · 10.8 on-site hours
- Denton Pits · 4100368
56.12023 · $151.00 proposed
- Edmond Pit & Plant · 3400110
Regular Safety and Health Inspection · 3.0 on-site hours
- Jordan Plant · 0103353
Spot Inspection · 1.0 on-site hours
- MALVERN MINING · 0300132
Spot Inspection · 12.0 on-site hours
- Edmond Pit & Plant · 3400110
Regular Safety and Health Inspection · 4.3 on-site hours
- MALVERN MINING · 0300132
SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY
Accident narrative
Equipment Operator stepped off of excavator turned to walk away and stepped on a clay chunk on the ground, Stubbled but did not fall, upon catching EE's balance felt a pop in EE's left knee. Conditions in the bullpen area was dry. On 7/11/2025 Employee reported that EE's knee had gotten worse and was taken to the ER. Further treatment was given at ER EE was released to home.
- Jordan Plant · 0103353
Regular Safety and Health Inspection · 14.0 on-site hours
- Denton Pits · 4100368
Compliance Follow-up Inspection · 1.3 on-site hours
- Denton Pits · 4100368
Regular Safety and Health Inspection · 5.5 on-site hours
- Denton Pits · 4100368
56.14100(b) · $151.00 proposed
- Denton Pits · 4100368
56.15001 · $151.00 proposed
- Denton Pits · 4100368
56.12019 · $151.00 proposed
- MALVERN MINING · 0300132
Regular Safety and Health Inspection · 5.0 on-site hours
- MALVERN MINING · 0300132
50.30(a) · $151.00 proposed
- MALVERN MINING · 0300132
56.12032 · $151.00 proposed
- MALVERN MINING · 0300132
56.12023 · $151.00 proposed
- MALVERN MINING · 0300132
56.14207 · $151.00 proposed
- Jordan Plant · 0103353
Regular Safety and Health Inspection · 6.5 on-site hours
- MALVERN MINING · 0300132
Regular Safety and Health Inspection · 4.5 on-site hours
- MALVERN MINING · 0300132
56.13015(a) · $151.00 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
2 linked operators.
Relationships reflect the selected mine status and current MSHA controller/operator fields.