# Relationship history for MSHA mine 2602924

Current hierarchy: **William Phillip  Owens → OWENS WOOD PRODUCTS, INC → Great Basin Sand and Gravel**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** OWENS WOOD PRODUCTS, INC → Great Basin Sand and Gravel; 2026-04-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** William Phillip  Owens → Great Basin Sand and Gravel; 2026-04-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William Phillip  Owens → OWENS WOOD PRODUCTS, INC; 2026-04-14 to current/open; source msha-controller-operator-history