# Relationship history for MSHA mine 4003286

Current hierarchy: **Harry P  Dunegan → Pat Dunegan Co. → McGee/Clark Quarry**

- 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:** Pat Dunegan Co. → McGee/Clark Quarry; 2006-10-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Harry P  Dunegan → McGee/Clark Quarry; 2006-10-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harry P  Dunegan → Pat Dunegan Co.; 2006-10-24 to current/open; source msha-controller-operator-history