# Relationship history for MSHA mine 4202055

Current hierarchy: **Brent C Rupp; Blaine D Rupp → Rupp Trucking Enterprises Inc → RUPPS GRAVEL PRODUCT**

- 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:** Rupp Trucking Enterprises Inc → RUPPS GRAVEL PRODUCT; 1990-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Dee Loy  Rupp → RUPPS GRAVEL PRODUCT; 1990-03-01 to 2020-06-01; source msha-controller-operator-history
- **controller_controls_operator:** Dee Loy  Rupp → Rupp Trucking Enterprises Inc; 1990-03-01 to 2020-06-01; source msha-controller-operator-history
- **controller_controls_mine:** Blaine D Rupp et al → RUPPS GRAVEL PRODUCT; 2020-06-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Blaine D Rupp et al → Rupp Trucking Enterprises Inc; 2020-06-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brent C Rupp et al → Rupp Trucking Enterprises Inc; 2020-06-02 to current/open; source msha-controller-operator-history