# Marion County Mine

- **MSHA mine ID:** 4601433
- **Status:** Active
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Marion, WV
- **Operator:** Marion County Coal Resources, Inc.
- **Controller:** ACNR Holdings, Inc
- **Public source rows linked:** 78,421
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**ACNR Holdings, Inc (0157801) → Marion County Coal Resources, Inc. (0173653) → Marion County Mine (4601433)**

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

## Controller and operator valid-time history

- **CONSOL Energy Inc → Consolidation Coal Company:** 1950-01-01 through 2013-12-04; derived from co-tenure at mine 4601433; source `msha-controller-operator-history`.
- **Robert E  Murray → Consolidation Coal Company:** 2013-12-05 through 2016-01-03; derived from co-tenure at mine 4601433; source `msha-controller-operator-history`.
- **Robert E  Murray → The Marion County Coal Company:** 2016-01-04 through 2020-09-16; derived from co-tenure at mine 4601433; source `msha-controller-operator-history`.
- **ACNR Holdings, Inc → The Marion County Coal Company:** 2020-09-17 through 2020-09-16; derived from co-tenure at mine 4601433; source `msha-controller-operator-history`.
- **ACNR Holdings, Inc → Marion County Coal Resources, Inc.:** 2020-09-17 through current/open; derived from co-tenure at mine 4601433; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 12
- Interval anomalies: 1
- 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 — 403 since 2021:** Accidents and injuries 1,381 historical accident/injury rows; 3 coded fatalities and 45,802 lost days across the published record.
2. **COMPLIANCE — 3,262 since 2021:** Violations and penalties 15,912 violation rows across the full record; 4,071 carry an S&S flag and $12,384,595 appears in current assessed amounts.
3. **HEALTH — 17K samples:** Occupational health samples 15,913 coal dust; 433 coal quartz; 863 noise. 0 personal-sample rows have a published C/E ratio above 1; 346 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 — 1.6M tons:** Quarterly production and employment 333K employee hours and 531 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 9,735 linked rows:** Contests, conferences and decisions 3,740 contested-violation rows, 3,741 civil-penalty docket/decision rows, and 2,254 conference records linked by issuance number.
6. **CONTRACTORS — 69 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 — 849 since 2021:** Inspections 3,320 inspection events and 156K published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 5,645,400 short tons
- **Labor hours:** 1,170,349
- **Average employees:** 521
- **Coal supply region:** Appalachia Northern
- **Union code:** United Mine Workers Of America
- **Published rows under this MSHA ID:** 1

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 75.342 — Methane monitors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.342
- **30 CFR 75.380 — Escapeways; bituminous and lignite mines.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.380
- **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 75.1403-6 — Criteria—Self-propelled personnel carriers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-O/section-75.1403-6
- **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 75.206 — Conventional roof support.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-C/section-75.206
- **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 75.1722 — Mechanical equipment guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1722
- **30 CFR 75.1106-3 — Storage of liquefied and nonliquefied compressed gas cylinders; requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1106-3
- **30 CFR 75.1403 — Other safeguards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-O/section-75.1403
- **30 CFR 77.1104 — Accumulations of combustible materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1104

## Source coverage

- **Accident, Injuries, and Illnesses:** 1,381 rows; 2000-08-19 through 2026-09-24; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2003-09-21 through 2003-09-21; source ID `msha-addresses`
- **Assessed Violations:** 15,711 rows; 2000-08-28 through 2026-08-31; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 3,741 rows; 2002-01-07 through 2026-09-17; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 15,913 rows; 2001-03-20 through 2057-05-15; source ID `msha-coal-dust-samples`
- **Conferences:** 2,254 rows; 2002-02-27 through 2026-09-23; source ID `msha-conferences`
- **Contested Violations:** 3,740 rows; 2004-10-06 through 2026-07-31; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 12,212 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 2,414 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1950-01-01 through 2020-09-17; source ID `msha-controller-operator-history`
- **Inspections:** 3,320 rows; 2000-01-04 through 2026-10-08; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 414 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:** 863 rows; 2003-06-12 through 2026-01-12; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 433 rows; 2003-02-05 through 2026-09-08; source ID `msha-quartz-samples`
- **Violations:** 15,912 rows; 2000-08-28 through 2026-10-06; 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/marion-county-mine-4601433`
- JSON: `/api/v1/mines/marion-county-mine-4601433`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4601433/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4601433/relationships`
- MCP resource: `mine://4601433/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`