# Relationship history for MSHA mine 3401368

Current hierarchy: **International Chemical Company Inc → Woodside Construction Company Inc → Lou No 2**

- 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:** Woodside William L → Lou No 2; 1982-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mylu Coal Company Inc → Lou No 2; 1982-10-01 to 1985-02-11; source msha-controller-operator-history
- **controller_controls_mine:** Johnson Myatt B → Lou No 2; 1982-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Johnson Myatt B → Mylu Coal Company Inc; 1982-10-01 to 1985-02-11; source msha-controller-operator-history
- **operator_operates_mine:** Woodside Construction Company Inc → Lou No 2; 1985-02-12 to 1985-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Woodside William L → Woodside Construction Company Inc; 1985-02-12 to 1985-09-30; source msha-controller-operator-history
- **controller_controls_mine:** International Chemical Company Inc → Lou No 2; 1985-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Woodside Construction Company Inc → Lou No 2; 1985-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** International Chemical Company Inc → Woodside Construction Company Inc; 1985-10-01 to current/open; source msha-controller-operator-history