# Relationship history for MSHA mine 1511895

Current hierarchy: **Lester Danny & Harold Hunt → Kimper Energy & Development Inc → No 2 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Lester Danny & Harold Hunt → No 2 Mine; 1976-11-13 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kimper Energy & Development Inc → No 2 Mine; 1979-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lester Danny & Harold Hunt → Kimper Energy & Development Inc; 1979-05-01 to current/open; source msha-controller-operator-history