# Relationship history for MSHA mine 4403473

Current hierarchy: **Cole James W Jr → C Energy Inc → Surface Mine No 3**

- 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:** Western Southern Construction Corp → Surface Mine No 3; 1950-01-01 to 1981-09-21; source msha-controller-operator-history
- **controller_controls_mine:** Shortridge Bill → Surface Mine No 3; 1950-01-01 to 1981-09-21; source msha-controller-operator-history
- **controller_controls_operator:** Shortridge Bill → Western Southern Construction Corp; 1950-01-01 to 1981-09-21; source msha-controller-operator-history
- **controller_controls_mine:** Cole James W Jr Et Al → Surface Mine No 3; 1981-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** C Energy Inc → Surface Mine No 3; 1981-09-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cole James W Jr Et Al → C Energy Inc; 1981-09-22 to current/open; source msha-controller-operator-history