# Relationship history for MSHA mine 0401113

Current hierarchy: **David  Rogers → Ibis → White Eagle Mine**

- 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:** Standard Industrial Minerals Inc → White Eagle Mine; 1950-01-01 to 1978-10-02; source msha-controller-operator-history
- **controller_controls_mine:** Standard Slag Company → White Eagle Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Standard Slag Company → Standard Industrial Minerals Inc; 1950-01-01 to 1978-10-02; source msha-controller-operator-history
- **controller_controls_mine:** Koza Don → White Eagle Mine; 1950-01-01 to 1985-05-04; source msha-controller-operator-history
- **operator_operates_mine:** Farmers Exchange Of Modoc Inc → White Eagle Mine; 1978-10-03 to 1985-05-04; source msha-controller-operator-history
- **controller_controls_operator:** Koza Don → Farmers Exchange Of Modoc Inc; 1978-10-03 to 1985-05-04; source msha-controller-operator-history
- **operator_operates_mine:** Okuniewicz Mining Company → White Eagle Mine; 1985-05-05 to 2004-11-09; source msha-controller-operator-history
- **controller_controls_mine:** Okuniewicz Michael Stanley & Michael Stephen → White Eagle Mine; 1985-05-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Okuniewicz Michael Stanley & Michael Stephen → Okuniewicz Mining Company; 1985-05-05 to 2004-11-09; source msha-controller-operator-history
- **operator_operates_mine:** Ibis → White Eagle Mine; 2004-11-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** David  Rogers → White Eagle Mine; 2004-11-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David  Rogers → Ibis; 2004-11-10 to current/open; source msha-controller-operator-history