# Relationship history for MSHA mine 1401766

Current hierarchy: **Rodney  Killian → Killian Sand Co LLC → Killian Sand Co LLC**

- 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:** Killian Sand Co LLC → Killian Sand Co LLC; 2014-03-31 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rodney  Killian → Killian Sand Co LLC; 2014-03-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rodney  Killian → Killian Sand Co LLC; 2014-03-31 to current/open; source msha-controller-operator-history