# Relationship history for MSHA mine 1516072

Current hierarchy: **Moore Harry E → Lakeshore Equipment Company Inc → Candy #1 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

- **operator_operates_mine:** Candy Coal Corp → Candy #1 Mine; 1987-06-01 to 1988-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Robert M  Keen → Candy #1 Mine; 1987-06-01 to 1988-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Robert M  Keen → Candy Coal Corp; 1987-06-01 to 1988-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Moore Harry E → Candy #1 Mine; 1987-08-18 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lakeshore Equipment Company Inc → Candy #1 Mine; 1988-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Moore Harry E → Lakeshore Equipment Company Inc; 1988-09-01 to current/open; source msha-controller-operator-history