# Supreme Energy Prep Plant

- **MSHA mine ID:** 1516567
- **Status:** NonProducing
- **Type / commodity:** Facility / Coal (Bituminous)
- **Location:** Knott, KY
- **Operator:** KNOTT COUNTY COAL LLC
- **Controller:** American Resources Corporation
- **Public source rows linked:** 2,579
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**American Resources Corporation (0150901) → KNOTT COUNTY COAL LLC (0054616) → Supreme Energy Prep Plant (1516567)**

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

## Controller and operator valid-time history

- **Shell Oil Company → Knott County Coal Company:** 1989-01-01 through 1992-11-22; derived from co-tenure at mine 1516567; source `msha-controller-operator-history`.
- **Zeigler Coal Holding Company → Knott County Mining Company:** 1992-11-23 through 1998-09-01; derived from co-tenure at mine 1516567; source `msha-controller-operator-history`.
- **Horizon Natural Resources Incorporated → Knott County Mining Company:** 1998-09-02 through 2004-10-03; derived from co-tenure at mine 1516567; source `msha-controller-operator-history`.
- **International Coal Group Inc (ICG) → KNOTT COUNTY COAL LLC:** 2004-10-04 through 2011-06-14; derived from co-tenure at mine 1516567; source `msha-controller-operator-history`.
- **Arch Resources Inc → KNOTT COUNTY COAL LLC:** 2011-06-15 through 2016-04-11; derived from co-tenure at mine 1516567; source `msha-controller-operator-history`.
- **Quest Energy Corporation → KNOTT COUNTY COAL LLC:** 2016-04-12 through 2017-01-04; derived from co-tenure at mine 1516567; source `msha-controller-operator-history`.
- **American Resources Corporation → KNOTT COUNTY COAL LLC:** 2017-01-05 through current/open; derived from co-tenure at mine 1516567; source `msha-controller-operator-history`.

- History rows: 7
- Typed edges: 18
- 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 12 historical accident/injury rows; 1 coded fatalities and 436 lost days across the published record.
2. **COMPLIANCE — 10 since 2021:** Violations and penalties 388 violation rows across the full record; 136 carry an S&S flag and $44,383 appears in current assessed amounts.
3. **HEALTH — 223 samples:** Occupational health samples 144 coal dust; 4 coal quartz; 75 noise. 0 personal-sample rows have a published C/E ratio above 1; 9 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 — 0 tons:** Quarterly production and employment 12K employee hours and 18 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 28 linked rows:** Contests, conferences and decisions 4 contested-violation rows, 5 civil-penalty docket/decision rows, and 19 conference records linked by issuance number.
6. **CONTRACTORS — 25 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 — 14 since 2021:** Inspections 152 inspection events and 5K published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 0 short tons
- **Labor hours:** 9,380
- **Average employees:** 9
- **Coal supply region:** Appalachia Central
- **Union code:** Not published
- **Published rows under this MSHA ID:** 2

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 77.216 — Water, sediment, or slurry impoundments and impounding structures; general.** (7 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.216
- **30 CFR 77.216-3 — Water, sediment, or slurry impoundments and impounding structures; inspection requirements; correction of hazards; program requirements.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.216-3
- **30 CFR 77.205 — Travelways at surface installations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.205
- **30 CFR 71.400 — Bathing facilities; change rooms; sanitary flush toilet facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-71/subpart-E/section-71.400

## Source coverage

- **Accident, Injuries, and Illnesses:** 12 rows; 2001-03-05 through 2014-10-07; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2014-01-07 through 2014-01-07; source ID `msha-addresses`
- **Assessed Violations:** 381 rows; 2000-06-29 through 2025-05-30; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 5 rows; 2005-03-10 through 2014-01-16; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 144 rows; 2000-07-11 through 2013-12-11; source ID `msha-coal-dust-samples`
- **Conferences:** 19 rows; 2000-07-27 through 2011-08-01; source ID `msha-conferences`
- **Contested Violations:** 4 rows; 2005-02-15 through 2011-05-12; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,075 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 261 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 7 rows; 1989-01-01 through 2004-10-04; source ID `msha-controller-operator-history`
- **Inspections:** 152 rows; 2000-03-22 through 2026-10-13; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 14 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 36 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 75 rows; 2000-03-22 through 2013-12-11; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 4 rows; 2001-12-11 through 2011-12-12; source ID `msha-quartz-samples`
- **Violations:** 388 rows; 2000-06-29 through 2025-05-30; 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/supreme-energy-prep-plant-1516567`
- JSON: `/api/v1/mines/supreme-energy-prep-plant-1516567`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1516567/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1516567/relationships`
- MCP resource: `mine://1516567/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`