# Relationship history for MSHA mine 2103574

Current hierarchy: **Mike M  Yax → Burnett Aggregate Inc → Burnett Mine**

- 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:** Burnett Aggregate Inc → Burnett Mine; 2007-04-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mike M  Yax → Burnett Mine; 2007-04-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mike M  Yax → Burnett Aggregate Inc; 2007-04-27 to current/open; source msha-controller-operator-history