# Relationship history for MSHA mine 2003651

Current hierarchy: **Jed D  Wuebben → WUEBBEN SAND & GRAVEL Inc → WSG Sandvik Cone Crusher**

- 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

- **controller_controls_mine:** Jed D  Wuebben → WSG Sandvik Cone Crusher; 2022-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** WUEBBEN SAND & GRAVEL Inc → WSG Sandvik Cone Crusher; 2023-06-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jed D  Wuebben → WUEBBEN SAND & GRAVEL Inc; 2023-06-12 to current/open; source msha-controller-operator-history