# Relationship history for MSHA mine 2302118

Current hierarchy: **Roger  Ideker → Ideker Inc → NEW POINT 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Roger  Ideker → NEW POINT QUARRY; 1992-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Ideker Inc → NEW POINT QUARRY; 1995-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roger  Ideker → Ideker Inc; 1995-03-01 to current/open; source msha-controller-operator-history