# Relationship history for MSHA mine 3200035

Current hierarchy: **Keeter James P → Royal Oak Enterprises Inc → J K Ranch**

- 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:** Husky Industries Inc → J K Ranch; 1950-01-01 to 1987-01-05; source msha-controller-operator-history
- **controller_controls_mine:** Husky Oil Company → J K Ranch; 1950-01-01 to 1987-01-05; source msha-controller-operator-history
- **controller_controls_operator:** Husky Oil Company → Husky Industries Inc; 1950-01-01 to 1987-01-05; source msha-controller-operator-history
- **operator_operates_mine:** Royal Oak Enterprises Inc → J K Ranch; 1987-01-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Keeter James P → J K Ranch; 1987-01-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Keeter James P → Royal Oak Enterprises Inc; 1987-01-06 to current/open; source msha-controller-operator-history