# Relationship history for MSHA mine 2402253

Current hierarchy: **Jacob S  Andersen → Andersen Rock Sales Inc. → Murr Peaks**

- 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:** Jacob S  Andersen → Murr Peaks; 2001-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jacob Andersen Rock Sales → Murr Peaks; 2002-04-24 to 2004-08-12; source msha-controller-operator-history
- **controller_controls_operator:** Jacob S  Andersen → Jacob Andersen Rock Sales; 2002-04-24 to 2004-08-12; source msha-controller-operator-history
- **operator_operates_mine:** Andersen Rock Sales Inc. → Murr Peaks; 2004-08-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jacob S  Andersen → Murr Peaks; 2004-08-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jacob S  Andersen → Andersen Rock Sales Inc.; 2004-08-13 to current/open; source msha-controller-operator-history