# Relationship history for MSHA mine 1101205

Current hierarchy: **Rein-Schultz & Dahl Of Illinois Inc → Rein-Schultz & Dahl Of Illinois Inc → Lena**

- 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

- **operator_operates_mine:** Rein-Schultz & Dahl Of Illinois Inc → Lena; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rein-Schultz & Dahl Of Illinois Inc → Lena; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rein-Schultz & Dahl Of Illinois Inc → Rein-Schultz & Dahl Of Illinois Inc; 1950-01-01 to current/open; source msha-controller-operator-history