# Relationship history for MSHA mine 0503415

Current hierarchy: **Harold  Roberts → Energy Fuels Nuclear Inc → Csr-10**

- 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:** Shumway Dan → Csr-10; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Harold  Roberts → Csr-10; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Energy Fuels Nuclear Inc → Csr-10; 1979-01-01 to 1985-10-30; source msha-controller-operator-history
- **controller_controls_operator:** Harold  Roberts → Energy Fuels Nuclear Inc; 1979-01-01 to 1985-10-30; source msha-controller-operator-history
- **operator_operates_mine:** D & G Mining → Csr-10; 1985-10-31 to 1987-05-26; source msha-controller-operator-history
- **controller_controls_mine:** Shumway Dan & Glen A → Csr-10; 1985-10-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shumway Dan & Glen A → D & G Mining; 1985-10-31 to 1987-05-26; source msha-controller-operator-history
- **operator_operates_mine:** Dan Shumway Mining → Csr-10; 1987-05-27 to 1989-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Shumway Dan → Dan Shumway Mining; 1987-05-27 to 1989-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Energy Fuels Nuclear Inc → Csr-10; 1989-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harold  Roberts → Energy Fuels Nuclear Inc; 1989-04-01 to current/open; source msha-controller-operator-history