# Relationship history for MSHA mine 3003295

Current hierarchy: **William E  Hopkins → Belfast Gravel Products Inc → Belfast Gravel Products Inc 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

- **operator_operates_mine:** O & H Contracting Inc → Belfast Gravel Products Inc Mine; 1999-08-01 to 2003-03-26; source msha-controller-operator-history
- **controller_controls_mine:** Suzan  Haseley → Belfast Gravel Products Inc Mine; 1999-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Suzan  Haseley → O & H Contracting Inc; 1999-08-01 to 2003-03-26; source msha-controller-operator-history
- **operator_operates_mine:** Belfast Gravel Products Inc → Belfast Gravel Products Inc Mine; 2003-03-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** William E  Hopkins et al → Belfast Gravel Products Inc Mine; 2003-03-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William E  Hopkins et al → Belfast Gravel Products Inc; 2003-03-27 to current/open; source msha-controller-operator-history