# Relationship history for MSHA mine 2302375

Current hierarchy: **Larry  Snyder → Midwest Mining Inc → Midwest Mining Portable**

- 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:** Midwest Mining Inc → Midwest Mining Portable; 2008-04-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Larry  Snyder → Midwest Mining Portable; 2008-04-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry  Snyder → Midwest Mining Inc; 2008-04-14 to current/open; source msha-controller-operator-history