# Relationship history for MSHA mine 1001022

Current hierarchy: **CRH PLC → Inland Asphalt Company → Moen Pit**

- 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:** Moen Inc → Moen Pit; 1950-01-01 to 1983-05-25; source msha-controller-operator-history
- **controller_controls_mine:** Ron  Moen et al → Moen Pit; 1950-01-01 to 1987-09-17; source msha-controller-operator-history
- **controller_controls_operator:** Ron  Moen et al → Moen Inc; 1950-01-01 to 1983-05-25; source msha-controller-operator-history
- **operator_operates_mine:** Inland Asphalt Company → Moen Pit; 1983-05-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → Moen Pit; 1983-05-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CRH PLC → Inland Asphalt Company; 1983-05-26 to current/open; source msha-controller-operator-history