# Relationship history for MSHA mine 4202647

Current hierarchy: **Brent  Robinson → Skutmpah Enterprises, LLC → Millcreek Burnt Shale**

- 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:** Skutmpah Enterprises, LLC → Millcreek Burnt Shale; 2015-06-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Brent  Robinson → Millcreek Burnt Shale; 2015-06-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brent  Robinson → Skutmpah Enterprises, LLC; 2015-06-16 to current/open; source msha-controller-operator-history