# Relationship history for MSHA mine 0202286

Current hierarchy: **Energy Fuels Inc → EFR Arizona Strip LLC → Pinenut**

- 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:** Harold  Roberts → Pinenut; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Energy Fuels Nuclear Inc → Pinenut; 1986-02-01 to 2008-10-04; source msha-controller-operator-history
- **controller_controls_operator:** Harold  Roberts → Energy Fuels Nuclear Inc; 1986-02-01 to 2008-10-04; source msha-controller-operator-history
- **controller_controls_mine:** International Uranium Corp → Pinenut; 1997-05-10 to 2023-02-12; source msha-controller-operator-history
- **operator_operates_mine:** Energy Fuels Resources (USA) Inc. → Pinenut; 2008-10-05 to 2025-02-09; source msha-controller-operator-history
- **controller_controls_operator:** International Uranium Corp → Energy Fuels Resources (USA) Inc.; 2008-10-05 to 2023-02-12; source msha-controller-operator-history
- **controller_controls_mine:** Energy Fuels Inc → Pinenut; 2023-02-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Energy Fuels Inc → Energy Fuels Resources (USA) Inc.; 2023-02-13 to 2025-02-09; source msha-controller-operator-history
- **operator_operates_mine:** EFR Arizona Strip LLC → Pinenut; 2025-02-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Energy Fuels Inc → Pinenut; 2025-02-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Energy Fuels Inc → EFR Arizona Strip LLC; 2025-02-10 to current/open; source msha-controller-operator-history