# Relationship history for MSHA mine 1519855

Current hierarchy: **Andrew  Alvis → Raw Recovery-Beech Creek, LLC → Beech Creek**

- 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:** Freddie  Revis → Beech Creek; 2018-07-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** FR Performance, LLC → Beech Creek; 2019-02-19 to 2025-03-23; source msha-controller-operator-history
- **controller_controls_operator:** Freddie  Revis → FR Performance, LLC; 2019-02-19 to 2025-03-23; source msha-controller-operator-history
- **operator_operates_mine:** Raw Recovery-Beech Creek, LLC → Beech Creek; 2025-03-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Andrew  Alvis → Beech Creek; 2025-03-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Andrew  Alvis → Raw Recovery-Beech Creek, LLC; 2025-03-24 to current/open; source msha-controller-operator-history