# Relationship history for MSHA mine 3607206

Current hierarchy: **Degilio Nicholas → Degilio Trucking Company → Exeter Bank**

- 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:** Degilio Nicholas → Exeter Bank; 1976-09-23 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Degilio Trucking Company → Exeter Bank; 1981-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Degilio Nicholas → Degilio Trucking Company; 1981-09-01 to current/open; source msha-controller-operator-history