# Prairie Eagle

- **MSHA mine ID:** 1103143
- **Status:** Active
- **Type / commodity:** Facility / Coal (Bituminous)
- **Location:** Perry, IL
- **Operator:** Knight Hawk Coal, LLC
- **Controller:** CBR Investments, LLC; CBR Investments II, LLC
- **Public source rows linked:** 4,006
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**CBR Investments, LLC; CBR Investments II, LLC (0165661) → Knight Hawk Coal, LLC (P23970) → Prairie Eagle (1103143)**

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

## Controller and operator valid-time history

- **Franklin D  Robertson  et al → Knight Hawk Coal, LLC:** 2005-01-01 through 2012-05-31; derived from co-tenure at mine 1103143; source `msha-controller-operator-history`.
- **James O  Bunn  et al → Knight Hawk Coal, LLC:** 2005-01-01 through 2012-05-31; derived from co-tenure at mine 1103143; source `msha-controller-operator-history`.
- **Franklin D.  Robertson et al → Knight Hawk Coal, LLC:** 2012-06-01 through 2021-01-03; derived from co-tenure at mine 1103143; source `msha-controller-operator-history`.
- **Arch Coal Inc. et al → Knight Hawk Coal, LLC:** 2012-06-01 through 2021-01-03; derived from co-tenure at mine 1103143; source `msha-controller-operator-history`.
- **James O.  Bunn et al → Knight Hawk Coal, LLC:** 2012-06-01 through 2021-01-03; derived from co-tenure at mine 1103143; source `msha-controller-operator-history`.
- **Arch Coal Inc et al → Knight Hawk Coal, LLC:** 2021-01-04 through 2021-11-16; derived from co-tenure at mine 1103143; source `msha-controller-operator-history`.
- **CBR Investments LLC et al → Knight Hawk Coal, LLC:** 2021-01-04 through 2021-11-16; derived from co-tenure at mine 1103143; source `msha-controller-operator-history`.
- **CBR Investments, LLC et al → Knight Hawk Coal, LLC:** 2021-11-17 through current/open; derived from co-tenure at mine 1103143; source `msha-controller-operator-history`.
- **CBR Investments II, LLC et al → Knight Hawk Coal, LLC:** 2021-11-17 through current/open; derived from co-tenure at mine 1103143; source `msha-controller-operator-history`.

- History rows: 9
- Typed edges: 14
- 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 — 21 since 2021:** Accidents and injuries 63 historical accident/injury rows; 0 coded fatalities and 1,070 lost days across the published record.
2. **COMPLIANCE — 65 since 2021:** Violations and penalties 229 violation rows across the full record; 96 carry an S&S flag and $91,351 appears in current assessed amounts.
3. **HEALTH — 551 samples:** Occupational health samples 423 coal dust; 20 coal quartz; 108 noise. 0 personal-sample rows have a published C/E ratio above 1; 7 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 16K employee hours and 30 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 100 linked rows:** Contests, conferences and decisions 35 contested-violation rows, 35 civil-penalty docket/decision rows, and 30 conference records linked by issuance number.
6. **CONTRACTORS — 18 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 — 24 since 2021:** Inspections 86 inspection events and 5K published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 0 short tons
- **Labor hours:** 103,981
- **Average employees:** 43
- **Coal supply region:** Illinois Basin
- **Union code:** Not published
- **Published rows under this MSHA ID:** 2

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 77.216 — Water, sediment, or slurry impoundments and impounding structures; general.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.216
- **30 CFR 77.205 — Travelways at surface installations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.205
- **30 CFR 71.206 — Quarterly sampling; designated work positions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-71/subpart-C/section-71.206
- **30 CFR 77.502 — Electric equipment; examination, testing, and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.502
- **30 CFR 77.1710 — Protective clothing; requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-R/section-77.1710
- **30 CFR 77.1606 — Loading and haulage equipment; inspection and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1606
- **30 CFR 77.1607 — Loading and haulage equipment; operation.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1607
- **30 CFR 77.1605 — Loading and haulage equipment; installations.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1605
- **30 CFR 41.12 — Changes; notification by operator.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-B/section-41.12
- **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:** 63 rows; 2005-10-10 through 2026-04-21; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2005-04-15 through 2005-04-15; source ID `msha-addresses`
- **Assessed Violations:** 222 rows; 2005-11-04 through 2026-05-05; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 35 rows; 2010-11-17 through 2024-09-26; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 423 rows; 2005-09-13 through 2026-07-30; source ID `msha-coal-dust-samples`
- **Conferences:** 30 rows; 2011-06-23 through 2024-02-11; source ID `msha-conferences`
- **Contested Violations:** 35 rows; 2009-02-01 through 2024-01-03; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 2,025 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 456 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 9 rows; 2005-01-01 through 2005-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 86 rows; 2005-04-08 through 2026-09-22; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 219 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 44 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 108 rows; 2005-11-08 through 2026-02-17; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 20 rows; 2005-09-13 through 2025-05-20; source ID `msha-quartz-samples`
- **Violations:** 229 rows; 2005-11-04 through 2026-09-02; 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/prairie-eagle-1103143`
- JSON: `/api/v1/mines/prairie-eagle-1103143`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1103143/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1103143/relationships`
- MCP resource: `mine://1103143/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`