# Relationship history for MSHA mine 3304818

Current hierarchy: **Jacob P  Denny → Denny Farm Excavation LLC → Denny 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:** Denny Farm Excavation LLC → Denny Mine; 2026-08-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jacob P  Denny → Denny Mine; 2026-08-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jacob P  Denny → Denny Farm Excavation LLC; 2026-08-27 to current/open; source msha-controller-operator-history