# Relationship history for MSHA mine 3604951

Current hierarchy: **James L  Laurita → Laurita Coal Company → Eagle No 1 Tipple**

- 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:** Laurita Coal Company → Eagle No 1 Tipple; 1974-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James L  Laurita → Eagle No 1 Tipple; 1974-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James L  Laurita → Laurita Coal Company; 1974-01-01 to current/open; source msha-controller-operator-history