# Relationship history for MSHA mine 1513252

Current hierarchy: **Cochran Lloyd-Lewis Bianchi → Leloken Coal Company 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:** Cochran Lloyd Et Al → No 2 Mine; 1981-09-01 to 1982-11-02; source msha-controller-operator-history
- **operator_operates_mine:** Eastern K Coal Company Inc → No 2 Mine; 1981-11-01 to 1982-04-18; source msha-controller-operator-history
- **controller_controls_operator:** Cochran Lloyd Et Al → Eastern K Coal Company Inc; 1981-11-01 to 1982-04-18; source msha-controller-operator-history
- **operator_operates_mine:** G & D Coal Company Inc → No 2 Mine; 1982-04-19 to 1982-11-02; source msha-controller-operator-history
- **controller_controls_mine:** Loveday Larry Et Al → No 2 Mine; 1982-04-19 to 1982-11-02; source msha-controller-operator-history
- **controller_controls_operator:** Loveday Larry Et Al → G & D Coal Company Inc; 1982-04-19 to 1982-11-02; source msha-controller-operator-history
- **operator_operates_mine:** Leloken Coal Company Inc → No 2 Mine; 1982-11-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cochran Lloyd-Lewis Bianchi Et Al → No 2 Mine; 1982-11-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cochran Lloyd-Lewis Bianchi Et Al → Leloken Coal Company Inc; 1982-11-03 to current/open; source msha-controller-operator-history