# Relationship history for MSHA mine 3304580

Current hierarchy: **Richard E  Petrozzi; John J  Petrozzi → T.P.Mining,Inc. → Auger 24**

- 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

- **controller_controls_mine:** John J  Petrozzi et al → Auger 24; 1989-09-18 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** T.P.Mining,Inc. → Auger 24; 2006-12-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John J  Petrozzi et al → T.P.Mining,Inc.; 2006-12-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard E  Petrozzi et al → T.P.Mining,Inc.; 2006-12-20 to current/open; source msha-controller-operator-history