# Relationship history for MSHA mine 4703282

Current hierarchy: **Allan  Olynick → Allan Olynick Inc → 683 SCREEN PLANT**

- 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:** Allan Olynick Inc → 683 SCREEN PLANT; 2001-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Allan  Olynick → 683 SCREEN PLANT; 2001-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Allan  Olynick → Allan Olynick Inc; 2001-08-01 to current/open; source msha-controller-operator-history