# Relationship history for MSHA mine 4405082

Current hierarchy: **Coal Energy Company Inc → Coal Energy Company Inc-Widow Mite Division → No 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

- **controller_controls_mine:** Adkins Albert C & Donald D Rose → No 1 Mine; 1976-09-22 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Adkins Coal Company → No 1 Mine; 1978-08-01 to 1978-09-14; source msha-controller-operator-history
- **controller_controls_operator:** Adkins Albert C & Donald D Rose → Adkins Coal Company; 1978-08-01 to 1978-09-14; source msha-controller-operator-history
- **operator_operates_mine:** Coal Energy Company Inc-Widow Mite Division → No 1 Mine; 1978-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Coal Energy Company Inc → No 1 Mine; 1978-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Coal Energy Company Inc → Coal Energy Company Inc-Widow Mite Division; 1978-09-15 to current/open; source msha-controller-operator-history