# Relationship history for MSHA mine 1103254

Current hierarchy: **Kenny  Sentel; Bob  Brown → Energy Recovery, LLC → Fidelity Mine**

- 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:** Energy Recovery, LLC → Fidelity Mine; 2012-09-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kenny  Sentel et al → Fidelity Mine; 2012-09-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenny  Sentel et al → Energy Recovery, LLC; 2012-09-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bob  Brown et al → Energy Recovery, LLC; 2012-09-20 to current/open; source msha-controller-operator-history