# Relationship history for MSHA mine 3303729

Current hierarchy: **John  Nicolozakes → La May Coal Company Inc → Lamay River Dock**

- 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:** La May Coal Company Inc → Lamay River Dock; 1979-01-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John  Nicolozakes et al → Lamay River Dock; 1979-01-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Nicolozakes et al → La May Coal Company Inc; 1979-01-15 to current/open; source msha-controller-operator-history