# Relationship history for MSHA mine 1701103

Current hierarchy: **John (Jake) E  Barbour → Jake Barbour Inc. → Astec GT165**

- 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:** John (Jake) E  Barbour → Astec GT165; 2006-06-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jake Barbour Inc. → Astec GT165; 2023-10-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John (Jake) E  Barbour → Jake Barbour Inc.; 2023-10-02 to current/open; source msha-controller-operator-history