# Relationship history for MSHA mine 4002584

Current hierarchy: **Reese John E → H & R Coal Company → H & R Coal Company Mine**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** H & R Coal Company → H & R Coal Company Mine; 1980-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Reese John E Et Al → H & R Coal Company Mine; 1980-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Reese John E Et Al → H & R Coal Company; 1980-01-01 to current/open; source msha-controller-operator-history