# Relationship history for MSHA mine 5100302

Current hierarchy: **Brysson  Lorenzo → Ocean View Rock Products Inc. → Ocean View Quarry**

- 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:** Arrow of Oregon/Hawaii LLC → Ocean View Quarry; 2009-12-14 to 2023-06-19; source msha-controller-operator-history
- **controller_controls_mine:** Joseph  Chamberlain → Ocean View Quarry; 2009-12-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joseph  Chamberlain → Arrow of Oregon/Hawaii LLC; 2009-12-14 to 2023-06-19; source msha-controller-operator-history
- **operator_operates_mine:** Ocean View Rock Products Inc. → Ocean View Quarry; 2023-06-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Brysson  Lorenzo → Ocean View Quarry; 2023-06-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brysson  Lorenzo → Ocean View Rock Products Inc.; 2023-06-20 to current/open; source msha-controller-operator-history