# Relationship history for MSHA mine 0302101

Current hierarchy: **Matthew  Wooten → Mattco Materials, LLC → Bell Mountain Quarry**

- 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

- **controller_controls_mine:** Matthew  Wooten → Bell Mountain Quarry; 2024-06-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mattco Materials, LLC → Bell Mountain Quarry; 2025-12-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Matthew  Wooten → Mattco Materials, LLC; 2025-12-22 to current/open; source msha-controller-operator-history