# Relationship history for MSHA mine 5001152

Current hierarchy: **White Pete → White Construction Ltd → Mc Cormick Creek**

- 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:** Midnight Sun Logging Company → Mc Cormick Creek; 1950-01-01 to 1980-08-12; source msha-controller-operator-history
- **controller_controls_mine:** Bunch Jack → Mc Cormick Creek; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bunch Jack → Midnight Sun Logging Company; 1950-01-01 to 1980-08-12; source msha-controller-operator-history
- **operator_operates_mine:** White Construction Ltd → Mc Cormick Creek; 1980-08-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** White Pete → Mc Cormick Creek; 1980-08-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** White Pete → White Construction Ltd; 1980-08-13 to current/open; source msha-controller-operator-history