# Relationship history for MSHA mine 1517268

Current hierarchy: **Hall Larry → Starbright Coals Inc → Starbright Coals Inc #2 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

- **controller_controls_mine:** Hall Larry → Starbright Coals Inc #2 Mine; 1988-10-19 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Starbright Coals Inc → Starbright Coals Inc #2 Mine; 1992-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hall Larry → Starbright Coals Inc; 1992-07-01 to current/open; source msha-controller-operator-history