# Relationship history for MSHA mine 4405635

Current hierarchy: **Dales Benny C → Mole Coal Company Inc → No 4**

- 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:** Street Ralph Et Al → No 4; 1974-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mole Coal Company Inc → No 4; 1981-04-01 to 1982-02-11; source msha-controller-operator-history
- **controller_controls_operator:** Street Ralph Et Al → Mole Coal Company Inc; 1981-04-01 to 1982-02-11; source msha-controller-operator-history
- **operator_operates_mine:** Mole Coal Company Inc → No 4; 1982-02-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Dales Benny C → No 4; 1982-02-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dales Benny C → Mole Coal Company Inc; 1982-02-12 to current/open; source msha-controller-operator-history