# Relationship history for MSHA mine 4606194

Current hierarchy: **Hovatter Lloyd E → Vic-Mar Coal Company → Mine #1**

- 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:** Vic-Mar Coal Company → Mine #1; 1980-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hovatter Lloyd E Et Al → Mine #1; 1980-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hovatter Lloyd E Et Al → Vic-Mar Coal Company; 1980-08-01 to current/open; source msha-controller-operator-history