# Relationship history for MSHA mine 4202736

Current hierarchy: **Karen S Nicholson → Hamer Nicker Enterprises, Inc. → Black Desert Resort**

- 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:** Hamer Nicker Enterprises, Inc. → Black Desert Resort; 2022-01-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Karen S Nicholson → Black Desert Resort; 2022-01-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Karen S Nicholson → Hamer Nicker Enterprises, Inc.; 2022-01-17 to current/open; source msha-controller-operator-history