# Relationship history for MSHA mine 4405452

Current hierarchy: **Pruitt Danny E → Black Hawk Coal Company Inc → Mine No 7**

- 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:** Pruitt Danny E → Mine No 7; 1975-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tom Cat Coal Company Inc → Mine No 7; 1980-07-01 to 1981-04-29; source msha-controller-operator-history
- **controller_controls_mine:** Matney Lution → Mine No 7; 1980-07-01 to 1981-04-29; source msha-controller-operator-history
- **controller_controls_operator:** Matney Lution → Tom Cat Coal Company Inc; 1980-07-01 to 1981-04-29; source msha-controller-operator-history
- **operator_operates_mine:** Black Hawk Coal Company Inc → Mine No 7; 1981-04-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pruitt Danny E → Black Hawk Coal Company Inc; 1981-04-30 to current/open; source msha-controller-operator-history