# Relationship history for MSHA mine 4002415

Current hierarchy: **Asbury Harold F → Peabody Mining Company Inc → No 1 Surface**

- 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:** Roger E  West → No 1 Surface; 1976-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Energy Inc → No 1 Surface; 1978-05-01 to 1980-09-01; source msha-controller-operator-history
- **controller_controls_mine:** Rich John W (Ky-Tn-In) → No 1 Surface; 1978-05-01 to 1982-08-25; source msha-controller-operator-history
- **controller_controls_operator:** Rich John W (Ky-Tn-In) → Energy Inc; 1978-05-01 to 1980-09-01; source msha-controller-operator-history
- **operator_operates_mine:** Southeast Coals Inc → No 1 Surface; 1980-09-02 to 1981-02-09; source msha-controller-operator-history
- **controller_controls_operator:** Roger E  West → Southeast Coals Inc; 1980-09-02 to 1981-02-09; source msha-controller-operator-history
- **operator_operates_mine:** Peabody Mining Company Inc → No 1 Surface; 1981-02-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Asbury Harold F Et Al → No 1 Surface; 1981-02-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Asbury Harold F Et Al → Peabody Mining Company Inc; 1981-02-10 to current/open; source msha-controller-operator-history