# Relationship history for MSHA mine 3304678

Current hierarchy: **Ed  Salisbury → Ed Salisbury Construction LLC → Scioto Mine**

- 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:** Basic Minerals LLC → Scioto Mine; 2008-10-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Ohio Basic Minerals LLC → Scioto Mine; 2011-10-11 to 2011-12-26; source msha-controller-operator-history
- **controller_controls_operator:** Basic Minerals LLC → Ohio Basic Minerals LLC; 2011-10-11 to 2011-12-26; source msha-controller-operator-history
- **operator_operates_mine:** Ed Salisbury Construction LLC → Scioto Mine; 2011-12-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ed  Salisbury → Scioto Mine; 2011-12-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ed  Salisbury → Ed Salisbury Construction LLC; 2011-12-27 to current/open; source msha-controller-operator-history