# Relationship history for MSHA mine 4202039

Current hierarchy: **Charles H  Gent → Genwal Coal Company Inc → Mohrland Loudout Facility**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Charles H  Gent → Mohrland Loudout Facility; 1981-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Genwal Coal Company Inc → Mohrland Loudout Facility; 1988-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles H  Gent → Genwal Coal Company Inc; 1988-09-01 to current/open; source msha-controller-operator-history