# Relationship history for MSHA mine 3503562

Current hierarchy: **Shawn  Skidgel; Chris  Skidgel → Skidgel Contracting LLC → Skidgel Contracting 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:** Skidgel Contracting LLC → Skidgel Contracting LLC; 2002-06-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Chris  Skidgel et al → Skidgel Contracting LLC; 2002-06-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chris  Skidgel et al → Skidgel Contracting LLC; 2002-06-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shawn  Skidgel et al → Skidgel Contracting LLC; 2002-06-04 to current/open; source msha-controller-operator-history