# Relationship history for MSHA mine 1502324

Current hierarchy: **Gray Herbert → Wooton Creek Mining Company Inc → No 2**

- 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:** Bnecker - Norris Ralkos Coal Corp → No 2; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cane Branch Coal Company → No 2; 1950-01-01 to 1974-04-02; source msha-controller-operator-history
- **controller_controls_mine:** Corentt Foister → No 2; 1950-01-01 to 1974-04-02; source msha-controller-operator-history
- **controller_controls_operator:** Corentt Foister → Cane Branch Coal Company; 1950-01-01 to 1974-04-02; source msha-controller-operator-history
- **operator_operates_mine:** Kentucky Mountain Coal Company → No 2; 1974-04-03 to 1975-08-28; source msha-controller-operator-history
- **controller_controls_operator:** Bnecker - Norris Ralkos Coal Corp → Kentucky Mountain Coal Company; 1974-04-03 to 1975-08-28; source msha-controller-operator-history
- **operator_operates_mine:** A & A Coal Company → No 2; 1975-08-29 to 1978-03-15; source msha-controller-operator-history
- **controller_controls_mine:** Lawson Arthur Et Al → No 2; 1975-08-29 to 1978-03-15; source msha-controller-operator-history
- **controller_controls_operator:** Lawson Arthur Et Al → A & A Coal Company; 1975-08-29 to 1978-03-15; source msha-controller-operator-history
- **operator_operates_mine:** Wooton Creek Mining Company Inc → No 2; 1978-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gray Herbert → No 2; 1978-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gray Herbert → Wooton Creek Mining Company Inc; 1978-03-16 to current/open; source msha-controller-operator-history