# Relationship history for MSHA mine 3607235

Current hierarchy: **Anthony  Blaschak Jr → C L S Coal Corp → Silver Creek**

- 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:** Anthony  Blaschak Jr → Silver Creek; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lupus & Mullin Coal Company Inc → Silver Creek; 1981-11-01 to 1983-02-28; source msha-controller-operator-history
- **controller_controls_mine:** Mullin Joseph → Silver Creek; 1981-11-01 to 1983-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Mullin Joseph → Lupus & Mullin Coal Company Inc; 1981-11-01 to 1983-02-28; source msha-controller-operator-history
- **operator_operates_mine:** C L S Coal Corp → Silver Creek; 1983-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Anthony  Blaschak Jr → C L S Coal Corp; 1983-03-01 to current/open; source msha-controller-operator-history