# Black Knight II

- **MSHA mine ID:** 4608402
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Boone, WV
- **Operator:** Elk Run Coal Company, LLC
- **Controller:** Alpha Metallurgical Resources Inc
- **Public source rows linked:** 5,025
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Alpha Metallurgical Resources Inc (0127321) → Elk Run Coal Company, LLC (P11051) → Black Knight II (4608402)**

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

## Controller and operator valid-time history

- **Massey Energy Company → Elk Run Coal Company, LLC:** 1994-05-01 through 2011-05-31; derived from co-tenure at mine 4608402; source `msha-controller-operator-history`.
- **Alpha Natural Resources, Inc. → Elk Run Coal Company, LLC:** 2011-06-01 through 2016-07-25; derived from co-tenure at mine 4608402; source `msha-controller-operator-history`.
- **Alpha Natural Resources Holdings, Inc → Elk Run Coal Company, LLC:** 2016-07-26 through 2018-11-08; derived from co-tenure at mine 4608402; source `msha-controller-operator-history`.
- **Alpha Metallurgical Resources Inc → Elk Run Coal Company, LLC:** 2018-11-09 through current/open; derived from co-tenure at mine 4608402; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 9
- 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 — 0 since 2021:** Accidents and injuries 91 historical accident/injury rows; 0 coded fatalities and 1,709 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 590 violation rows across the full record; 227 carry an S&S flag and $275,553 appears in current assessed amounts.
3. **HEALTH — 810 samples:** Occupational health samples 717 coal dust; 64 coal quartz; 29 noise. 0 personal-sample rows have a published C/E ratio above 1; 11 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 — 262 linked rows:** Contests, conferences and decisions 118 contested-violation rows, 129 civil-penalty docket/decision rows, and 15 conference records linked by issuance number.
6. **CONTRACTORS — 11 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 144 inspection events and 8K 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 75.202 — 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 75.1731 — 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 75.1504 — Mine emergency evacuation training and drills.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-P/section-75.1504
- **30 CFR 75.159 — Records of certified and qualified persons.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-B/section-75.159
- **30 CFR 75.508 — Map of electrical system.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.508
- **30 CFR 75.403 — Maintenance of incombustible content of rock dust.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.403
- **30 CFR 75.350 — Belt air course ventilation.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.350
- **30 CFR 77.509 — Transformers; installation and guarding.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.509
- **30 CFR 77.1102 — Warning signs; smoking and open flame.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1102
- **30 CFR 77.208 — Storage of materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.208
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 91 rows; 2000-02-02 through 2016-12-01; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2019-08-20 through 2019-08-20; source ID `msha-addresses`
- **Assessed Violations:** 566 rows; 2000-02-02 through 2015-10-26; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 129 rows; 2001-11-26 through 2014-05-30; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 717 rows; 2000-01-18 through 2014-09-24; source ID `msha-coal-dust-samples`
- **Conferences:** 15 rows; 2001-07-18 through 2004-08-12; source ID `msha-conferences`
- **Contested Violations:** 118 rows; 2003-12-29 through 2012-09-26; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,909 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 427 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1994-05-01 through 1994-05-01; source ID `msha-controller-operator-history`
- **Inspections:** 144 rows; 2000-01-03 through 2019-07-08; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 186 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 34 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 29 rows; 2000-02-16 through 2010-03-17; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 64 rows; 2000-01-31 through 2013-02-26; source ID `msha-quartz-samples`
- **Violations:** 590 rows; 2000-02-02 through 2015-10-26; 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/black-knight-ii-4608402`
- JSON: `/api/v1/mines/black-knight-ii-4608402`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4608402/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4608402/relationships`
- MCP resource: `mine://4608402/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`