# Relationship history for MSHA mine 1302510

Current hierarchy: **Jacob D Hoon → United Dredging → United Dredging Y171**

- 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

- **controller_controls_mine:** Jacob D Hoon → United Dredging Y171; 2023-07-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** United Dredging → United Dredging Y171; 2023-08-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jacob D Hoon → United Dredging; 2023-08-03 to current/open; source msha-controller-operator-history