# Relationship history for MSHA mine 1518086

Current hierarchy: **Robert  Noonan → Candle Ridge Mining Inc → Surface Mine #1**

- 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:** Robert  Noonan → Surface Mine #1; 1997-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Candle Ridge Mining Inc → Surface Mine #1; 1998-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Noonan → Candle Ridge Mining Inc; 1998-08-01 to current/open; source msha-controller-operator-history