# Relationship history for MSHA mine 0405669

Current hierarchy: **Pasquale  Baldi; Michael  Baldi → Baldi Bros Inc → Pioneer**

- 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:** Baldi Bros Inc → Pioneer; 2006-01-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Pasquale  Baldi  et al → Pioneer; 2006-01-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pasquale  Baldi  et al → Baldi Bros Inc; 2006-01-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Baldi  et al → Baldi Bros Inc; 2006-01-09 to current/open; source msha-controller-operator-history