# Relationship history for MSHA mine 4607254

Current hierarchy: **Goff Mauriene → Radec Inc → No 1**

- 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:** Massey Energy Company → No 1; 1950-01-01 to 1989-02-06; source msha-controller-operator-history
- **operator_operates_mine:** Western Mingo Coal Company → No 1; 1987-01-01 to 1989-02-06; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Western Mingo Coal Company; 1987-01-01 to 1989-02-06; source msha-controller-operator-history
- **operator_operates_mine:** Coral Mining Company → No 1; 1989-02-07 to 1989-05-29; source msha-controller-operator-history
- **controller_controls_mine:** Vernon D  Richmond → No 1; 1989-02-07 to 1989-05-29; source msha-controller-operator-history
- **controller_controls_operator:** Vernon D  Richmond → Coral Mining Company; 1989-02-07 to 1989-05-29; source msha-controller-operator-history
- **operator_operates_mine:** Radec Inc → No 1; 1989-05-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Goff Mauriene → No 1; 1989-05-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Goff Mauriene → Radec Inc; 1989-05-30 to current/open; source msha-controller-operator-history