# Prairie Eagle South Underground Mine

- **MSHA mine ID:** 1103205
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Perry, IL
- **Operator:** Knight Hawk Coal LLC
- **Controller:** CBR Investments, LLC; CBR Investments II, LLC
- **Public source rows linked:** 1,459
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**CBR Investments, LLC; CBR Investments II, LLC (0165661) → Knight Hawk Coal LLC (P23970) → Prairie Eagle South Underground Mine (1103205)**

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

## Controller and operator valid-time history

- **James O  Bunn  et al → Knight Hawk Coal LLC:** 2008-10-22 through 2012-05-31; derived from co-tenure at mine 1103205; source `msha-controller-operator-history`.
- **Franklin D  Robertson  et al → Knight Hawk Coal LLC:** 2008-10-22 through 2012-05-31; derived from co-tenure at mine 1103205; 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 1103205; 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 1103205; 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 1103205; 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 1103205; 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 1103205; 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 1103205; 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 1103205; 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 33 historical accident/injury rows; 1 coded fatalities and 1,340 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 149 violation rows across the full record; 21 carry an S&S flag and $170,536 appears in current assessed amounts.
3. **HEALTH — 329 samples:** Occupational health samples 276 coal dust; 17 coal quartz; 36 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 — No published quarter:** Quarterly production and employment The source remains registered, but no mine-keyed quarterly production row was published.
5. **LEGAL — 30 linked rows:** Contests, conferences and decisions 11 contested-violation rows, 11 civil-penalty docket/decision rows, and 8 conference records linked by issuance number.
6. **CONTRACTORS — 2 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 31 inspection events and 3K 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 75.512 — Electric equipment; examination, testing and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.512
- **30 CFR 75.220 — Roof control plan.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-C/section-75.220
- **30 CFR 50.11 — Investigation.** (10 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-B/section-50.11

## Source coverage

- **Accident, Injuries, and Illnesses:** 33 rows; 2009-05-11 through 2013-06-11; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2013-12-31 through 2013-12-31; source ID `msha-addresses`
- **Assessed Violations:** 143 rows; 2009-05-19 through 2013-11-14; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 11 rows; 2010-11-15 through 2016-09-29; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 276 rows; 2009-06-05 through 2013-06-21; source ID `msha-coal-dust-samples`
- **Conferences:** 8 rows; 2011-04-14 through 2013-08-20; source ID `msha-conferences`
- **Contested Violations:** 11 rows; 2009-06-01 through 2016-05-11; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 598 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 124 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 9 rows; 2008-10-22 through 2008-10-22; source ID `msha-controller-operator-history`
- **Inspections:** 31 rows; 2009-05-06 through 2013-10-28; source ID `msha-inspections`
- **Mine Employment and Production — Yearly:** 11 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 36 rows; 2009-08-25 through 2013-04-24; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 17 rows; 2010-03-02 through 2013-04-10; source ID `msha-quartz-samples`
- **Violations:** 149 rows; 2009-05-19 through 2013-11-14; 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-south-underground-mine-1103205`
- JSON: `/api/v1/mines/prairie-eagle-south-underground-mine-1103205`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1103205/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1103205/relationships`
- MCP resource: `mine://1103205/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`