# Relationship history for MSHA mine 1516496

Current hierarchy: **Freeman Daniel V → Freeman Fuels Of Ky Inc → No 2 Strip And Auger**

- 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

- **controller_controls_mine:** Williams Robert → No 2 Strip And Auger; 1982-03-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Freeman Daniel V → No 2 Strip And Auger; 1988-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Birchfield Mining Company Inc → No 2 Strip And Auger; 1988-10-01 to 1990-04-08; source msha-controller-operator-history
- **controller_controls_operator:** Williams Robert → Birchfield Mining Company Inc; 1988-10-01 to 1990-04-08; source msha-controller-operator-history
- **operator_operates_mine:** Freeman Fuels Of Ky Inc → No 2 Strip And Auger; 1990-04-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Freeman Daniel V → Freeman Fuels Of Ky Inc; 1990-04-09 to current/open; source msha-controller-operator-history