# Relationship history for MSHA mine 0301891

Current hierarchy: **Pete R  Molnaird; Charles D  Molnaird → P&C Construction → P&C Construction**

- 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:** P&C Construction → P&C Construction; 2004-07-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Pete R  Molnaird et al → P&C Construction; 2004-07-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pete R  Molnaird et al → P&C Construction; 2004-07-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles D  Molnaird et al → P&C Construction; 2004-07-13 to current/open; source msha-controller-operator-history