# Relationship history for MSHA mine 2003042

Current hierarchy: **Inge  Burdt; Peter M Konen → Sunset Sand & Gravel, LLC → Sunset Sand & Gravel, 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Sunset Sand & Gravel, LLC → Sunset Sand & Gravel, LLC; 1998-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Peter M Konen  et al → Sunset Sand & Gravel, LLC; 1998-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Peter M Konen  et al → Sunset Sand & Gravel, LLC; 1998-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Inge  Burdt et al → Sunset Sand & Gravel, LLC; 1998-01-01 to current/open; source msha-controller-operator-history