# Relationship history for MSHA mine 2402681

Current hierarchy: **Owen P  Voigt → Legacy Mining LLC → 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:** Legacy Mining LLC → Portable; 2014-10-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Owen P  Voigt → Portable; 2014-10-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Owen P  Voigt → Legacy Mining LLC; 2014-10-28 to current/open; source msha-controller-operator-history