# Relationship history for MSHA mine 3102365

Current hierarchy: **Brent A  Fernandes; Joel B  Weiner; Sean E  Chipman → Horizon 30 LLC → Poplar 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:** Horizon 30 LLC → Poplar Mine; 2025-04-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Joel B  Weiner et al → Poplar Mine; 2025-04-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joel B  Weiner et al → Horizon 30 LLC; 2025-04-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sean E  Chipman et al → Horizon 30 LLC; 2025-04-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brent A  Fernandes et al → Horizon 30 LLC; 2025-04-08 to current/open; source msha-controller-operator-history