# Relationship history for MSHA mine 2200797

Current hierarchy: **Richard C  Moore Jr; Carey  Moore → Lehman- Roberts → Friars Point Plant**

- 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:** Lehman- Roberts → Friars Point Plant; 2009-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Richard C  Moore → Friars Point Plant; 2009-06-18 to 2014-01-12; source msha-controller-operator-history
- **controller_controls_operator:** Richard C  Moore → Lehman- Roberts; 2009-06-18 to 2014-01-12; source msha-controller-operator-history
- **controller_controls_mine:** Carey  Moore et al → Friars Point Plant; 2014-01-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carey  Moore et al → Lehman- Roberts; 2014-01-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard C  Moore Jr et al → Lehman- Roberts; 2014-01-13 to current/open; source msha-controller-operator-history