# Relationship history for MSHA mine 1508054

Current hierarchy: **J V  Renfro → Renwood Land Company Inc → No 2 Surface**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Renwood Land Company Inc → No 2 Surface; 1975-02-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** J V  Renfro et al → No 2 Surface; 1975-02-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** J V  Renfro et al → Renwood Land Company Inc; 1975-02-18 to current/open; source msha-controller-operator-history