# Relationship history for MSHA mine 1516402

Current hierarchy: **Hall Larry → Starbright Coals Inc → No 1**

- 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:** Star Bright Coals Inc → No 1; 1988-06-01 to 1988-10-18; source msha-controller-operator-history
- **controller_controls_mine:** Leonard  Hall → No 1; 1988-06-01 to 1988-10-18; source msha-controller-operator-history
- **controller_controls_operator:** Leonard  Hall → Star Bright Coals Inc; 1988-06-01 to 1988-10-18; source msha-controller-operator-history
- **operator_operates_mine:** Starbright Coals Inc → No 1; 1988-10-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hall Larry → No 1; 1988-10-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hall Larry → Starbright Coals Inc; 1988-10-19 to current/open; source msha-controller-operator-history