# Relationship history for MSHA mine 4105260

Current hierarchy: **Kenneth R  Benbow → Allstar Materials, LLC → Allstar Materials Benbow 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Allstar Materials, LLC → Allstar Materials Benbow Ranch; 2017-05-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth R  Benbow → Allstar Materials Benbow Ranch; 2017-05-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth R  Benbow → Allstar Materials, LLC; 2017-05-18 to current/open; source msha-controller-operator-history