# Relationship history for MSHA mine 2902394

Current hierarchy: **Randell F  Pettingill → Arriba Concrete & Construction, Inc. → Arriba Concrete**

- 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:** Arriba Concrete & Construction, Inc. → Arriba Concrete; 2009-05-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Randell F  Pettingill et al → Arriba Concrete; 2009-05-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randell F  Pettingill et al → Arriba Concrete & Construction, Inc.; 2009-05-14 to current/open; source msha-controller-operator-history