# Relationship history for MSHA mine 4002901

Current hierarchy: **Bradley Equipment Company Inc → Abc Mining Company Inc → A B C Mine No 6**

- 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

- **operator_operates_mine:** Red Man Mining Company → A B C Mine No 6; 1985-09-01 to 1988-02-04; source msha-controller-operator-history
- **controller_controls_mine:** Slone Tim & Pat Et Al → A B C Mine No 6; 1985-09-01 to 1988-02-04; source msha-controller-operator-history
- **controller_controls_operator:** Slone Tim & Pat Et Al → Red Man Mining Company; 1985-09-01 to 1988-02-04; source msha-controller-operator-history
- **operator_operates_mine:** White Oak Coal Company Inc → A B C Mine No 6; 1988-02-05 to 1988-07-14; source msha-controller-operator-history
- **controller_controls_mine:** Rose David E → A B C Mine No 6; 1988-02-05 to 1988-07-14; source msha-controller-operator-history
- **controller_controls_operator:** Rose David E → White Oak Coal Company Inc; 1988-02-05 to 1988-07-14; source msha-controller-operator-history
- **controller_controls_mine:** Bradley Equipment Company Inc → A B C Mine No 6; 1988-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Abc Mining Company Inc → A B C Mine No 6; 1988-07-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bradley Equipment Company Inc → Abc Mining Company Inc; 1988-07-15 to current/open; source msha-controller-operator-history