# Relationship history for MSHA mine 1517218

Current hierarchy: **Paul E  Bryant → Weslo Inc → Providence Diamond J**

- 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:** Paul E  Bryant → Providence Diamond J; 1990-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Weslo Inc → Providence Diamond J; 1992-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul E  Bryant → Weslo Inc; 1992-04-01 to current/open; source msha-controller-operator-history