# Relationship history for MSHA mine 1501967

Current hierarchy: **Gary  Asher → Appolo Fuels Inc → No 1 Mine**

- 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:** Gary  Asher → No 1 Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** A C Coal Company → No 1 Mine; 1950-01-01 to 1972-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Collette Fred → No 1 Mine; 1950-01-01 to 1972-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Collette Fred → A C Coal Company; 1950-01-01 to 1972-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Appolo Fuels Inc → No 1 Mine; 1972-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary  Asher → Appolo Fuels Inc; 1972-09-01 to current/open; source msha-controller-operator-history