# Relationship history for MSHA mine 3607615

Current hierarchy: **Reiner Terry → White'S Coal Company → Brookside Slope**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Whites Coal Company → Brookside Slope; 1984-09-01 to 1986-02-26; source msha-controller-operator-history
- **controller_controls_mine:** Lesher Robert & Greg Underkoffler → Brookside Slope; 1984-09-01 to 1986-02-26; source msha-controller-operator-history
- **controller_controls_operator:** Lesher Robert & Greg Underkoffler → Whites Coal Company; 1984-09-01 to 1986-02-26; source msha-controller-operator-history
- **operator_operates_mine:** White'S Coal Company → Brookside Slope; 1986-02-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Reiner Terry → Brookside Slope; 1986-02-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Reiner Terry → White'S Coal Company; 1986-02-27 to current/open; source msha-controller-operator-history