# Mountaineer Mine

- **MSHA mine ID:** 4606958
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Mingo, WV
- **Operator:** Mingo Logan Coal Company
- **Controller:** Core Natural Resources Inc
- **Public source rows linked:** 2,248
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Core Natural Resources Inc (0189840) → Mingo Logan Coal Company (P21148) → Mountaineer Mine (4606958)**

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

## Controller and operator valid-time history

- **British Petroleum Company PLC → Mingo Logan Coal Company:** 1985-07-01 through 1990-01-23; derived from co-tenure at mine 4606958; source `msha-controller-operator-history`.
- **Ashland Inc et al → Mingo Logan Coal Company:** 1990-01-24 through 1991-05-16; derived from co-tenure at mine 4606958; source `msha-controller-operator-history`.
- **Albert F  Robinson → Larc Inc:** 1991-05-17 through 1992-01-07; derived from co-tenure at mine 4606958; source `msha-controller-operator-history`.
- **Ashland Inc et al → Mingo Logan Coal Company:** 1992-01-08 through 1996-06-30; derived from co-tenure at mine 4606958; source `msha-controller-operator-history`.
- **Arch Resources Inc → Mingo Logan Coal Company:** 1997-07-01 through 1991-05-16; derived from co-tenure at mine 4606958; source `msha-controller-operator-history`.
- **Arch Resources Inc → Mingo Logan Coal Company:** 1997-07-01 through 2025-01-13; derived from co-tenure at mine 4606958; source `msha-controller-operator-history`.
- **Core Natural Resources Inc → Mingo Logan Coal Company:** 2025-01-14 through 1991-05-16; derived from co-tenure at mine 4606958; source `msha-controller-operator-history`.
- **Core Natural Resources Inc → Mingo Logan Coal Company:** 2025-01-14 through current/open; derived from co-tenure at mine 4606958; source `msha-controller-operator-history`.

- History rows: 8
- Typed edges: 17
- Interval anomalies: 2
- 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 — 0 since 2021:** Accidents and injuries 68 historical accident/injury rows; 0 coded fatalities and 4,366 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 188 violation rows across the full record; 68 carry an S&S flag and $26,010 appears in current assessed amounts.
3. **HEALTH — 868 samples:** Occupational health samples 774 coal dust; 61 coal quartz; 33 noise. 0 personal-sample rows have a published C/E ratio above 1; 8 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 0 employee hours and 0 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 21 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 3 civil-penalty docket/decision rows, and 18 conference records linked by issuance number.
6. **CONTRACTORS — 6 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 — 0 since 2021:** Inspections 91 inspection events and 5K published inspection hours across the historical record.

## EIA annual operating context

No matched record in the 2024 EIA coal-public workbook. This may be inapplicable for a non-coal operation.

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 75.364 — Weekly examination.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.364
- **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 75.503 — Permissible electric face equipment; maintenance.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.503
- **30 CFR 75.1200 — Mine map.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-M/section-75.1200
- **30 CFR 75.400 — Accumulation of combustible materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.400
- **30 CFR 75.1100-3 — Condition and examination of firefighting equipment.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1100-3
- **30 CFR 75.333 — Ventilation controls.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.333
- **30 CFR 75.606 — Protection of trailing cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-G/section-75.606

## Source coverage

- **Accident, Injuries, and Illnesses:** 68 rows; 2000-01-04 through 2005-08-22; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2005-12-10 through 2005-12-10; source ID `msha-addresses`
- **Assessed Violations:** 188 rows; 2000-01-18 through 2005-02-02; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 3 rows; 2001-01-09 through 2002-12-19; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 774 rows; 2000-01-14 through 2005-02-09; source ID `msha-coal-dust-samples`
- **Conferences:** 18 rows; 2000-03-07 through 2003-12-17; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 621 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 97 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 8 rows; 1985-07-01 through 1992-01-08; source ID `msha-controller-operator-history`
- **Inspections:** 91 rows; 2000-01-18 through 2005-09-26; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 81 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 15 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 33 rows; 2000-02-23 through 2004-09-22; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 61 rows; 2000-02-03 through 2004-12-14; source ID `msha-quartz-samples`
- **Violations:** 188 rows; 2000-01-18 through 2005-02-02; 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/mountaineer-mine-4606958`
- JSON: `/api/v1/mines/mountaineer-mine-4606958`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4606958/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4606958/relationships`
- MCP resource: `mine://4606958/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`