# Relationship history for MSHA mine 1102803

Current hierarchy: **Keene Joseph → Guaranty Resources Inc → Mine No 2 (Valier)**

- 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:** Guaranty Resources Inc → Mine No 2 (Valier); 1984-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Keene Joseph → Mine No 2 (Valier); 1984-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Keene Joseph → Guaranty Resources Inc; 1984-04-01 to current/open; source msha-controller-operator-history