# Relationship history for MSHA mine 3201087

Current hierarchy: **Raymond G Gleave → Ray Gleaves Construction → Gleaves #2**

- 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:** Raymond G Gleave → Gleaves #2; 2003-07-02 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Ray Gleaves Construction → Gleaves #2; 2022-08-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Raymond G Gleave → Ray Gleaves Construction; 2022-08-30 to current/open; source msha-controller-operator-history