# Relationship history for MSHA mine 1516663

Current hierarchy: **James H  Booth → Eagle Coal Company Inc → No. 22**

- 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:** Williams Eugene → No. 22; 1988-08-07 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Zulu Mining Inc → No. 22; 1989-07-01 to 2006-10-01; source msha-controller-operator-history
- **controller_controls_operator:** Williams Eugene → Zulu Mining Inc; 1989-07-01 to 2006-10-01; source msha-controller-operator-history
- **controller_controls_mine:** James H  Booth et al → No. 22; 1991-10-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Eagle Coal Company Inc → No. 22; 2006-10-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James H  Booth et al → Eagle Coal Company Inc; 2006-10-02 to current/open; source msha-controller-operator-history