# Relationship history for MSHA mine 4609535

Current hierarchy: **Conrad  Whitaker; Jonathan  Whitaker → Denali Energy Group, LLC → Auger A-1**

- 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

- **controller_controls_mine:** Conrad  Whitaker et al → Auger A-1; 2010-09-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Denali Energy Group, LLC → Auger A-1; 2017-05-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Conrad  Whitaker et al → Denali Energy Group, LLC; 2017-05-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jonathan  Whitaker et al → Denali Energy Group, LLC; 2017-05-25 to current/open; source msha-controller-operator-history