# Relationship history for MSHA mine 3200687

Current hierarchy: **Gupman Philip L → Sheep Creek Enterprises Inc → Sheep Creek Enterprises Inc**

- 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:** Sheep Creek Enterprises Inc → Sheep Creek Enterprises Inc; 1984-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gupman Philip L → Sheep Creek Enterprises Inc; 1984-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gupman Philip L → Sheep Creek Enterprises Inc; 1984-10-01 to current/open; source msha-controller-operator-history