# Relationship history for MSHA mine 4609003

Current hierarchy: **Eddie  Hurley → Continuous Mining Co Inc → No. 4**

- 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:** Eddie  Hurley → No. 4; 1991-02-25 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Continuous Mining Co Inc → No. 4; 2003-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eddie  Hurley → Continuous Mining Co Inc; 2003-09-01 to current/open; source msha-controller-operator-history