# Relationship history for MSHA mine 3607300

Current hierarchy: **Caola Dennis F → J & D Mining Inc → Miller Run #2 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Caola Dennis F → Miller Run #2 Mine; 1975-08-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** J & D Mining Inc → Miller Run #2 Mine; 1982-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Caola Dennis F → J & D Mining Inc; 1982-04-01 to current/open; source msha-controller-operator-history