# Relationship history for MSHA mine 2103279

Current hierarchy: **Dedra  Reiner; Frank  Little; Craig  Reiner → Skyline Companies, Inc → Skyline Companies, Inc-CRUSHER**

- 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

- **controller_controls_mine:** Craig S  Reiner → Skyline Companies, Inc-CRUSHER; 1999-06-01 to 2025-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Skyline Companies, Inc → Skyline Companies, Inc-CRUSHER; 2001-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Craig S  Reiner → Skyline Companies, Inc; 2001-04-01 to 2025-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Craig  Reiner et al → Skyline Companies, Inc-CRUSHER; 2026-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Craig  Reiner et al → Skyline Companies, Inc; 2026-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Frank  Little et al → Skyline Companies, Inc; 2026-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dedra  Reiner et al → Skyline Companies, Inc; 2026-01-01 to current/open; source msha-controller-operator-history