# Relationship history for MSHA mine 3304717

Current hierarchy: **Timothy S  Hall → ROCKY ENTERPRISE → ROCKY ENTERPRISE LLC**

- 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:** Rocky Enterprise → ROCKY ENTERPRISE LLC; 2015-07-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Timothy S  Hall → ROCKY ENTERPRISE LLC; 2015-07-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy S  Hall → Rocky Enterprise; 2015-07-20 to current/open; source msha-controller-operator-history