# Relationship history for MSHA mine 4801758

Current hierarchy: **Teri L  Pallesen; Gary N  Pallesen → Pallesen Const. Inc → PCI**

- 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:** Pallesen Const. Inc → PCI; 2011-10-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gary N  Pallesen et al → PCI; 2011-10-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary N  Pallesen et al → Pallesen Const. Inc; 2011-10-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Teri L  Pallesen et al → Pallesen Const. Inc; 2011-10-11 to current/open; source msha-controller-operator-history