# Relationship history for MSHA mine 4202569

Current hierarchy: **Kyle M  Zahn; Darrell G  Boepple; Kenneth  Cooper → Black Gold Organic Fertilizer → Rhea Rae**

- 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:** Black Gold Organic Fertilizer → Rhea Rae; 2011-04-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth  Cooper et al → Rhea Rae; 2011-04-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth  Cooper et al → Black Gold Organic Fertilizer; 2011-04-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Darrell G  Boepple et al → Black Gold Organic Fertilizer; 2011-04-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kyle M  Zahn et al → Black Gold Organic Fertilizer; 2011-04-18 to current/open; source msha-controller-operator-history