# Relationship history for MSHA mine 3304242

Current hierarchy: **Albert  Carapellotti; Michael  Carapellotti → Schiappa Coal Company Inc → No 9 Reilly Strip**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Albert  Carapellotti et al → No 9 Reilly Strip; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Schiappa Coal Company Inc → No 9 Reilly Strip; 1991-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Albert  Carapellotti et al → Schiappa Coal Company Inc; 1991-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Carapellotti et al → Schiappa Coal Company Inc; 1991-08-01 to current/open; source msha-controller-operator-history