# Relationship history for MSHA mine 3004163

Current hierarchy: **Patrick  Curran → Curran Logging Inc → Plum Brook 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:** Patrick  Curran → Plum Brook Mine; 2005-04-19 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Curran Logging Inc → Plum Brook Mine; 2025-08-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patrick  Curran → Curran Logging Inc; 2025-08-10 to current/open; source msha-controller-operator-history