# Relationship history for MSHA mine 2402292

Current hierarchy: **Jack L  Ellis → J D Rock → P N 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** J D Rock → P N Mine; 2002-08-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jack L  Ellis → P N Mine; 2002-08-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jack L  Ellis → J D Rock; 2002-08-17 to current/open; source msha-controller-operator-history