# Relationship history for MSHA mine 3201075

Current hierarchy: **Scott V Carino; Anthony  Carino; Douglas  Argo → Woodrock Inc → Portable 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:** Woodrock Inc → Portable Plant; 2019-05-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Douglas  Argo et al → Portable Plant; 2019-05-16 to 2024-08-18; source msha-controller-operator-history
- **controller_controls_operator:** Douglas  Argo et al → Woodrock Inc; 2019-05-16 to 2024-08-18; source msha-controller-operator-history
- **controller_controls_operator:** Anthony  Carino et al → Woodrock Inc; 2019-05-16 to 2024-08-18; source msha-controller-operator-history
- **controller_controls_operator:** Scott  Carino et al → Woodrock Inc; 2019-05-16 to 2024-08-18; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Price et al → Woodrock Inc; 2019-05-16 to 2024-08-18; source msha-controller-operator-history
- **controller_controls_mine:** Douglas  Argo et al → Portable Plant; 2024-08-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Douglas  Argo et al → Woodrock Inc; 2024-08-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott V Carino et al → Woodrock Inc; 2024-08-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Anthony  Carino et al → Woodrock Inc; 2024-08-19 to current/open; source msha-controller-operator-history