# Relationship history for MSHA mine 3402029

Current hierarchy: **Jay L  Hill → Hokie Okie Stone → HO2018**

- 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:** Hokie Okie Stone → HO2018; 2006-12-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jay L  Hill → HO2018; 2006-12-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jay L  Hill → Hokie Okie Stone; 2006-12-07 to current/open; source msha-controller-operator-history