# SUFCO

- **MSHA mine ID:** 4200089
- **Status:** Active
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Sevier, UT
- **Operator:** CANYON FUEL COMPANY LLC
- **Controller:** Wolverine Fuels LLC
- **Public source rows linked:** 44,899
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Wolverine Fuels LLC (0110263) → CANYON FUEL COMPANY LLC (P23684) → SUFCO (4200089)**

Current identity source: `msha-mines`. This is a current snapshot, not a historical claim.

## Controller and operator valid-time history

- **El Paso Energy Corp → Southern Utah Fuel Company:** 1970-02-01 through 1997-02-05; derived from co-tenure at mine 4200089; source `msha-controller-operator-history`.
- **Arch Resources Inc → Canyon Fuel Company LLC:** 1997-02-06 through 2013-08-16; derived from co-tenure at mine 4200089; source `msha-controller-operator-history`.
- **Wolverine Fuels LLC → Canyon Fuel Company LLC:** 2013-08-17 through current/open; derived from co-tenure at mine 4200089; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 8
- Interval anomalies: 0
- Valid-time bounds: inclusive; date granularity; null end means open-ended in the upstream history row; not independent proof of present control.
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 54 since 2021:** Accidents and injuries 222 historical accident/injury rows; 2 coded fatalities and 6,634 lost days across the published record.
2. **COMPLIANCE — 1,207 since 2021:** Violations and penalties 5,047 violation rows across the full record; 775 carry an S&S flag and $2,439,707 appears in current assessed amounts.
3. **HEALTH — 26K samples:** Occupational health samples 23,999 coal dust; 924 coal quartz; 940 noise. 0 personal-sample rows have a published C/E ratio above 1; 141 noise rows have an action-level or PEL dose above 100%. These are separate measures, not a silica exceedance count. Silica results and sample status are shown separately.
4. **PRODUCTION — 800K tons:** Quarterly production and employment 209K employee hours and 399 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 292 linked rows:** Contests, conferences and decisions 93 contested-violation rows, 94 civil-penalty docket/decision rows, and 105 conference records linked by issuance number.
6. **CONTRACTORS — 31 linked entities:** Contractors Contractors are linked through this mine’s violation or accident records. Their production and hours cover all their operations, so they are not included in this mine’s totals.
7. **INSPECTIONS — 62 since 2021:** Inspections 401 inspection events and 83K published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 3,099,164 short tons
- **Labor hours:** 865,964
- **Average employees:** 438
- **Coal supply region:** Uinta Region
- **Union code:** Not published
- **Published rows under this MSHA ID:** 1

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 75.400 — Accumulation of combustible materials.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.400
- **30 CFR 75.601-1 — Short circuit protection; ratings and settings of circuit breakers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-G/section-75.601-1
- **30 CFR 75.360 — Preshift examination at fixed intervals.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.360
- **30 CFR 75.380 — Escapeways; bituminous and lignite mines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.380
- **30 CFR 75.1731 — Maintenance of belt conveyors and belt conveyor entries.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1731
- **30 CFR 75.202 — Protection from falls of roof, face and ribs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-C/section-75.202
- **30 CFR 75.1725 — Machinery and equipment; operation and maintenance.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1725
- **30 CFR 75.370 — Mine ventilation plan; submission and approval.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.370

## Source coverage

- **Accident, Injuries, and Illnesses:** 222 rows; 2000-03-23 through 2026-09-01; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1980-11-01 through 1980-11-01; source ID `msha-addresses`
- **Assessed Violations:** 4,949 rows; 2000-01-19 through 2026-08-26; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 94 rows; 2003-06-24 through 2024-04-15; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 23,999 rows; 2000-01-06 through 2026-10-07; source ID `msha-coal-dust-samples`
- **Conferences:** 105 rows; 2000-06-02 through 2026-07-13; source ID `msha-conferences`
- **Contested Violations:** 93 rows; 2006-08-14 through 2025-11-10; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 6,222 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 1,379 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 1970-02-01 through 1997-02-06; source ID `msha-controller-operator-history`
- **Inspections:** 401 rows; 2000-01-05 through 2026-10-01; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 413 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 106 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 940 rows; 2000-05-25 through 2026-09-09; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 924 rows; 2000-01-25 through 2026-09-08; source ID `msha-quartz-samples`
- **Violations:** 5,047 rows; 2000-01-19 through 2026-10-07; source ID `msha-violations`

## Caveats

- This is public-record decision support, not legal advice or an official MSHA record.
- Missing data can indicate no event, publication delay, an unresolved identity, or inapplicability.
- Contractor production data is entity-level and is not attributed to this mine.

## Alternate representations

- HTML: `/mines/sufco-4200089`
- JSON: `/api/v1/mines/sufco-4200089`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4200089/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4200089/relationships`
- MCP resource: `mine://4200089/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`