# Relationship history for MSHA mine 4607003

Current hierarchy: **White Oak Corp-Madlex Corp → Wells Mining → No1 Strip**

- 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

- **operator_operates_mine:** Wells Mining → No1 Strip; 1985-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** White Oak Corp-Madlex Corp Et Al → No1 Strip; 1985-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** White Oak Corp-Madlex Corp Et Al → Wells Mining; 1985-09-01 to current/open; source msha-controller-operator-history