# Darby Mine

- **MSHA mine ID:** 1502263
- **Status:** Abandoned
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Harlan, KY
- **Operator:** Bluegrass Natural Resources, LLC
- **Controller:** Javelin Global Commodities (UK) Ltd
- **Public source rows linked:** 15,771
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Javelin Global Commodities (UK) Ltd (0178863) → Bluegrass Natural Resources, LLC (0190634) → Darby Mine (1502263)**

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

## Controller and operator valid-time history

- **Karst Edward W → Karst Robbins Coal Company Inc:** 1950-01-01 through 1993-02-18; derived from co-tenure at mine 1502263; source `msha-controller-operator-history`.
- **Ashland Inc et al → Lone Mountain Processing LLC:** 1993-02-19 through 2005-09-19; derived from co-tenure at mine 1502263; source `msha-controller-operator-history`.
- **Arch Resources Inc → Lone Mountain Processing LLC:** 2005-09-20 through 2017-09-13; derived from co-tenure at mine 1502263; source `msha-controller-operator-history`.
- **Jeffery A  Hoops → Black Jewel, LLC:** 2017-09-14 through 2019-09-18; derived from co-tenure at mine 1502263; source `msha-controller-operator-history`.
- **Industrial Minerals Group LLC → INMET Mining, LLC.:** 2019-09-19 through 2023-08-03; derived from co-tenure at mine 1502263; source `msha-controller-operator-history`.
- **Javelin Global Commodities (UK) Ltd → Bluegrass Natural Resources, LLC:** 2023-08-04 through current/open; derived from co-tenure at mine 1502263; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 17
- 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 — 15 since 2021:** Accidents and injuries 241 historical accident/injury rows; 1 coded fatalities and 6,561 lost days across the published record.
2. **COMPLIANCE — 221 since 2021:** Violations and penalties 2,375 violation rows across the full record; 597 carry an S&S flag and $904,023 appears in current assessed amounts.
3. **HEALTH — 8K samples:** Occupational health samples 6,844 coal dust; 613 coal quartz; 655 noise. 0 personal-sample rows have a published C/E ratio above 1; 127 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 1 employee hours and 1 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 859 linked rows:** Contests, conferences and decisions 319 contested-violation rows, 380 civil-penalty docket/decision rows, and 160 conference records linked by issuance number.
6. **CONTRACTORS — 5 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 — 111 since 2021:** Inspections 902 inspection events and 42K published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 43,050 short tons
- **Labor hours:** 19,207
- **Average employees:** 24
- **Coal supply region:** Appalachia Central
- **Union code:** Not published
- **Published rows under this MSHA ID:** 1

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 75.364 — Weekly examination.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.364
- **30 CFR 75.1107-16 — Inspection of fire suppression devices.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1107-16
- **30 CFR 75.310 — Installation of main mine fans.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.310
- **30 CFR 75.1502 — Mine emergency evacuation and firefighting program of instruction.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-P/section-75.1502
- **30 CFR 75.1715 — Identification check system.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1715
- **30 CFR 75.400 — Accumulation of combustible materials.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.400
- **30 CFR 75.382 — Mechanical escape facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.382
- **30 CFR 77.904 — Identification of circuit breakers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-J/section-77.904
- **30 CFR 75.601 — Short circuit protection of trailing cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-G/section-75.601
- **30 CFR 75.503 — Permissible electric face equipment; maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.503

## Source coverage

- **Accident, Injuries, and Illnesses:** 241 rows; 2000-01-12 through 2024-04-03; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2024-04-08 through 2024-04-08; source ID `msha-addresses`
- **Assessed Violations:** 2,291 rows; 2000-01-10 through 2024-02-06; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 380 rows; 2000-08-16 through 2023-09-21; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 6,844 rows; 2000-01-06 through 2024-02-20; source ID `msha-coal-dust-samples`
- **Conferences:** 160 rows; 2000-03-08 through 2022-05-24; source ID `msha-conferences`
- **Contested Violations:** 319 rows; 2003-05-22 through 2022-12-19; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 614 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 138 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 6 rows; 1950-01-01 through 2023-08-04; source ID `msha-controller-operator-history`
- **Inspections:** 902 rows; 2000-01-03 through 2024-03-26; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 183 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 48 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 655 rows; 2000-01-26 through 2024-01-25; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 613 rows; 2000-01-05 through 2023-04-20; source ID `msha-quartz-samples`
- **Violations:** 2,375 rows; 2000-01-10 through 2024-02-06; 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/darby-mine-1502263`
- JSON: `/api/v1/mines/darby-mine-1502263`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1502263/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1502263/relationships`
- MCP resource: `mine://1502263/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`