# Relationship history for MSHA mine 3304558

Current hierarchy: **Todd P  Steinel → Suffield Aggregate, LLC → Suffield Aggregate, 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Suffield Aggregate, LLC → Suffield Aggregate, LLC; 2005-11-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Alvin D  Rufener et al → Suffield Aggregate, LLC; 2005-11-22 to 2015-03-24; source msha-controller-operator-history
- **controller_controls_operator:** Alvin D  Rufener et al → Suffield Aggregate, LLC; 2005-11-22 to 2015-03-24; source msha-controller-operator-history
- **controller_controls_operator:** Lana L  Rufener et al → Suffield Aggregate, LLC; 2005-11-22 to 2015-03-24; source msha-controller-operator-history
- **controller_controls_mine:** Todd P  Steinel → Suffield Aggregate, LLC; 2015-03-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Todd P  Steinel → Suffield Aggregate, LLC; 2015-03-25 to current/open; source msha-controller-operator-history