# Relationship history for MSHA mine 1508133

Current hierarchy: **Hurst Howard Jr → Commonwealth Fuel Corp → No 1 Meade Branch Surface 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

- **operator_operates_mine:** Commonwealth Fuel Corp → No 1 Meade Branch Surface Mine; 1975-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hurst Howard Jr → No 1 Meade Branch Surface Mine; 1975-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hurst Howard Jr → Commonwealth Fuel Corp; 1975-01-01 to current/open; source msha-controller-operator-history