# Relationship history for MSHA mine 3901583

Current hierarchy: **Rodney L  Reuer; Janet M  Reuer → Rod's Welding Inc → R&J Gravel**

- 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:** Rod's Welding Inc → R&J Gravel; 2012-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rodney L  Reuer et al → R&J Gravel; 2012-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rodney L  Reuer et al → Rod's Welding Inc; 2012-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Janet M  Reuer et al → Rod's Welding Inc; 2012-01-01 to current/open; source msha-controller-operator-history