# Relationship history for MSHA mine 1002390

Current hierarchy: **Trevor  Carr; Marcus  Mickelsen; Michael Blu  Hoge → Idaho Construction and Excavation, LLC → 2100 Chieftan**

- 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:** Idaho Construction and Excavation, LLC → 2100 Chieftan; 2026-01-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Michael Blu  Hoge et al → 2100 Chieftan; 2026-01-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael Blu  Hoge et al → Idaho Construction and Excavation, LLC; 2026-01-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Trevor  Carr et al → Idaho Construction and Excavation, LLC; 2026-01-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Marcus  Mickelsen et al → Idaho Construction and Excavation, LLC; 2026-01-22 to current/open; source msha-controller-operator-history