# Coal Creek Mine

- **MSHA mine ID:** 4801215
- **Status:** Active
- **Type / commodity:** Surface / Coal (Bituminous)
- **Location:** Campbell, WY
- **Operator:** Thunder Basin Coal Company LLC
- **Controller:** Core Natural Resources Inc
- **Public source rows linked:** 5,322
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Core Natural Resources Inc (0189840) → Thunder Basin Coal Company LLC (P24224) → Coal Creek Mine (4801215)**

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

## Controller and operator valid-time history

- **Atlantic Richfield Company → Thunder Basin Coal Company Llc:** 1979-01-01 through 1994-04-17; derived from co-tenure at mine 4801215; source `msha-controller-operator-history`.
- **Zodiac Exploration Company Inc → S & M Construction Inc:** 1994-04-18 through 1996-12-31; derived from co-tenure at mine 4801215; source `msha-controller-operator-history`.
- **Lonnie  Fuller → Fuller Construction Inc:** 1997-01-01 through 1999-08-31; derived from co-tenure at mine 4801215; source `msha-controller-operator-history`.
- **Washington Group International Inc → Washington Group International Inc:** 1999-09-01 through 2000-10-31; derived from co-tenure at mine 4801215; source `msha-controller-operator-history`.
- **Ashland Inc et al → Thunder Basin Coal Company LLC:** 2000-11-01 through 2006-02-02; derived from co-tenure at mine 4801215; source `msha-controller-operator-history`.
- **Arch Resources Inc → Thunder Basin Coal Company LLC:** 2006-02-03 through 2025-01-13; derived from co-tenure at mine 4801215; source `msha-controller-operator-history`.
- **Core Natural Resources Inc → Thunder Basin Coal Company LLC:** 2025-01-14 through current/open; derived from co-tenure at mine 4801215; source `msha-controller-operator-history`.

- History rows: 7
- Typed edges: 19
- 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 — 3 since 2021:** Accidents and injuries 26 historical accident/injury rows; 0 coded fatalities and 349 lost days across the published record.
2. **COMPLIANCE — 86 since 2021:** Violations and penalties 262 violation rows across the full record; 47 carry an S&S flag and $102,049 appears in current assessed amounts.
3. **HEALTH — 741 samples:** Occupational health samples 486 coal dust; 65 coal quartz; 190 noise. 0 personal-sample rows have a published C/E ratio above 1; 6 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 — 564K tons:** Quarterly production and employment 18K employee hours and 33 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 49 linked rows:** Contests, conferences and decisions 22 contested-violation rows, 22 civil-penalty docket/decision rows, and 5 conference records linked by issuance number.
6. **CONTRACTORS — 15 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 92 inspection events and 5K published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 1,552,309 short tons
- **Labor hours:** 81,630
- **Average employees:** 40
- **Coal supply region:** Powder River Basin
- **Union code:** Not published
- **Published rows under this MSHA ID:** 1

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 77.202 — Dust accumulations in surface installations.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.202
- **30 CFR 77.400 — Mechanical equipment guards.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.400
- **30 CFR 77.207 — Illumination.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.207
- **30 CFR 77.1110 — Examination and maintenance of firefighting equipment.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1110
- **30 CFR 77.410 — Mobile equipment; automatic warning devices.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.410
- **30 CFR 71.100 — Respirable dust standard.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-71/subpart-B/section-71.100
- **30 CFR 77.404 — Machinery and equipment; operation and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.404

## Source coverage

- **Accident, Injuries, and Illnesses:** 26 rows; 2000-01-13 through 2024-07-15; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2005-12-23 through 2005-12-23; source ID `msha-addresses`
- **Assessed Violations:** 259 rows; 2000-04-04 through 2026-04-22; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 22 rows; 2010-06-23 through 2026-05-20; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 486 rows; 2000-02-01 through 2026-07-08; source ID `msha-coal-dust-samples`
- **Conferences:** 5 rows; 2007-12-19 through 2024-05-07; source ID `msha-conferences`
- **Contested Violations:** 22 rows; 2009-04-08 through 2026-04-22; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 2,869 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 676 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 7 rows; 1979-01-01 through 2000-11-01; source ID `msha-controller-operator-history`
- **Inspections:** 92 rows; 2000-04-03 through 2026-04-13; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 282 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 57 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 190 rows; 2000-04-24 through 2026-04-15; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 65 rows; 2000-04-13 through 2026-04-15; source ID `msha-quartz-samples`
- **Violations:** 262 rows; 2000-04-04 through 2026-04-22; 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/coal-creek-mine-4801215`
- JSON: `/api/v1/mines/coal-creek-mine-4801215`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4801215/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4801215/relationships`
- MCP resource: `mine://4801215/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`