# Relationship history for MSHA mine 3608046

Current hierarchy: **Baker Paul → Coal & Mineral Sales Inc → Andrews Run**

- 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

- **operator_operates_mine:** Coal & Mineral Sales Inc → Andrews Run; 1989-10-01 to 1990-08-07; source msha-controller-operator-history
- **controller_controls_mine:** Suto R P → Andrews Run; 1989-10-01 to 1990-08-07; source msha-controller-operator-history
- **controller_controls_operator:** Suto R P → Coal & Mineral Sales Inc; 1989-10-01 to 1990-08-07; source msha-controller-operator-history
- **operator_operates_mine:** Coal & Mineral Sales Inc → Andrews Run; 1990-08-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Baker Paul → Andrews Run; 1990-08-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Baker Paul → Coal & Mineral Sales Inc; 1990-08-08 to current/open; source msha-controller-operator-history