ALL STATUSES / OPERATOR PORTFOLIO
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MINE PORTFOLIO
2025-01-01 – 2026-10-17. All statuses 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 |
|---|---|---|---|---|---|---|
| Belle/Colony Mine4800888 · Active | Crook, WYSurface · MSHA: Bentonite | — | — | 25 | 6 | 112.3 |
| BELLE FOURCHE MILL3900049 · Active | Butte, SDFacility · MSHA: Bentonite | — | — | 5 | 0 | 38.8 |
| COLONY EAST MILL4800594 · Active | Crook, WYFacility · MSHA: Bentonite | — | — | 6 | 0 | 39.8 |
| COLONY WEST MILL4800245 · Active | Crook, WYFacility · MSHA: Bentonite | — | — | 7 | 2 | 35.0 |
| GASCOYNE MINE & MILL3200459 · Active | Bowman, NDFacility · MSHA: Leonardite | — | — | 33 | 0 | 112.5 |
| Lovell Mill4800057 · Active | Big Horn, WYFacility · MSHA: Bentonite | — | — | 7 | 0 | 23.8 |
| SANDY RIDGE MILL0100093 · Active | Lowndes, ALSurface · MSHA: Common Clays NEC | — | — | 6 | 0 | 49.0 |
| Yellowtail Mine4800607 · Active | Big Horn, WYSurface · MSHA: Bentonite | — | — | 1 | 0 | 19.0 |
| American Colloid Pits4800961 · Abandoned | Crook, WYSurface · MSHA: Fire Clay | — | — | 0 | 0 | — |
| Belle Mine2401775 · Abandoned | Carter, MTSurface · MSHA: Common Clays NEC | — | — | 0 | 0 | — |
| Broadhurst Mine3901312 · Abandoned | Butte, SDSurface · MSHA: Fire Clay | — | — | 0 | 0 | — |
| Crystal Mine4800606 · Abandoned | Big Horn, WYSurface · MSHA: Misc. Nonmetallic Mnls. NEC | — | — | 0 | 0 | — |
| De Voe Mine0404709 · Abandoned | San Bernardino, CASurface · MSHA: Misc. Nonmetallic Mnls. NEC | — | — | 0 | 0 | — |
| Foster Mine (Portable/Seasonal)2401447 · Abandoned | Carter, MTSurface · MSHA: Common Clays NEC | — | — | 0 | 0 | — |
| Kingston Springs Mine0404721 · Abandoned | San Bernardino, CASurface · MSHA: Misc. Nonmetallic Mnls. NEC | — | — | 0 | 0 | — |
| Malta Mine2401435 · Abandoned | Phillips, MTSurface · MSHA: Common Clays NEC | — | — | 0 | 0 | — |
| Malta Plant2401437 · Abandoned | Phillips, MTFacility · MSHA: Common Clays NEC | — | — | 0 | 0 | — |
| Nassau Mine2601891 · Abandoned | Pershing, NVSurface · MSHA: Common Clays NEC | — | — | 0 | 0 | — |
| Old Gold Mine4801101 · Abandoned | Weston, WYSurface · MSHA: Fire Clay | — | — | 0 | 0 | — |
| PARIS, TN PLANT4000204 · Abandoned | Henry, TNSurface · MSHA: Common Clays NEC | — | — | 0 | 0 | — |
| Ridge Mine3900844 · Abandoned | Butte, SDSurface · MSHA: Common Clays NEC | — | — | 0 | 0 | — |
| Sellers Pit0102565 · Abandoned | Lowndes, ALSurface · MSHA: Clay, Ceramic, Refractory Mnls. | — | — | 0 | 0 | — |
| UPTON MILL & MINE4800059 · Abandoned | Weston, WYSurface · MSHA: Common Clays NEC | — | — | 0 | 0 | — |
| Upton Mine4800807 · Abandoned | Weston, WYSurface · MSHA: Common Clays NEC | — | — | 0 | 0 | — |
| Upton West Mill4800597 · Abandoned | Converse, WYFacility · MSHA: Common Clays NEC | — | — | 0 | 0 | — |
| West Mine2401436 · Abandoned | Phillips, MTSurface · MSHA: Common Clays NEC | — | — | 0 | 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
9 of 26 mines with usable MSHA coordinates. Select a marker to open a mine.
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-17. All 26 mines listed under this operator were checked; 0 have reports in the available quarters. Totals use current ownership.
reported short tons
reported employee hours
production ÷ 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.
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | — | — | — | — | No report |
| 2025 Q2 | — | — | — | — | No report |
| 2025 Q3 | — | — | — | — | No report |
| 2025 Q4 | — | — | — | — | No report |
| 2026 Q1 | — | — | — | — | No report |
| 2026 Q2 | — | — | — | — | No report |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
2025-01-01 – 2026-10-17
13 significant & substantial (S&S)
0 records classified as fatality
86 of 90 violations with amounts
34 inspections · 34 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.
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 29 | 5 | 6,217.00 | 3 | 0 | 6 | 93.8 |
| 2025-Q2 | 6 | 1 | 1,452.00 | 0 | 0 | 2 | 33.5 |
| 2025-Q3 | 19 | 2 | 4,162.00 | 3 | 0 | 6 | 89.0 |
| 2025-Q4 | 7 | 1 | 2,713.00 | 1 | 0 | 3 | 52.3 |
| 2026-Q1 | 6 | 1 | 1,146.00 | 1 | 0 | 5 | 43.8 |
| 2026-Q2 | 16 | 3 | 12,957.00 | 0 | 0 | 7 | 72.5 |
| 2026-Q3 | 3 | 0 | 453.00 | 0 | 0 | 2 | 22.5 |
| 2026-Q4 * | 4 | 0 | — | 0 | 0 | 3 | 22.8 |
All violations issued in the selected period. Counts combine subsections.
56.9300(b)
Verbal Hazard Complaint Inspections · 2.3 on-site hours
Regular Safety and Health Inspection · 14.5 on-site hours
Regular Safety and Health Inspection · 6.0 on-site hours
56.14100(d)
56.14100(a)
56.12028
Regular Safety and Health Inspection · 10.0 on-site hours
56.12032 · $151.00 proposed
56.12032 · $151.00 proposed
Regular Safety and Health Inspection · 12.5 on-site hours
56.11002 · $151.00 proposed
Compliance Follow-up Inspection · 2.0 on-site hours
56.12028 · $818.00 proposed
Regular Safety and Health Inspection · 17.8 on-site hours
56.4430(a)(3) · S&S · $1,550.00 proposed
48.27(a) · S&S · $5,716.00 proposed
56.12034 · $1,037.00 proposed
56.14201(b) · $465.00 proposed
56.14205 · $1,037.00 proposed
56.14105 · $209.00 proposed
Regular Safety and Health Inspection · 6.0 on-site hours
56.16005 · $151.00 proposed
56.11001 · $151.00 proposed
56.12025 · $313.00 proposed
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
Relationships reflect the selected mine status and current MSHA controller/operator fields.