# Relationship history for MSHA mine 4607815

Current hierarchy: **Compton Lucky D → War Eagle Construction Company Inc → No 8**

- 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

- **operator_operates_mine:** Amos Mining Inc → No 8; 1989-12-01 to 1990-02-11; source msha-controller-operator-history
- **controller_controls_mine:** Hager Johnny → No 8; 1989-12-01 to 1991-01-14; source msha-controller-operator-history
- **controller_controls_operator:** Hager Johnny → Amos Mining Inc; 1989-12-01 to 1990-02-11; source msha-controller-operator-history
- **operator_operates_mine:** War Eagle Construction Company Inc → No 8; 1990-02-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Compton Lucky D → No 8; 1990-02-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Compton Lucky D → War Eagle Construction Company Inc; 1990-02-12 to current/open; source msha-controller-operator-history