# Relationship history for MSHA mine 3304648

Current hierarchy: **Chad C  Clark → Clark Clay Co. → Eagle One**

- 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:** Clark Clay Co. → Eagle One; 2010-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Larry  Clark et al → Eagle One; 2010-07-01 to 2017-12-14; source msha-controller-operator-history
- **controller_controls_operator:** Larry  Clark et al → Clark Clay Co.; 2010-07-01 to 2017-12-14; source msha-controller-operator-history
- **controller_controls_operator:** Chad  Clark et al → Clark Clay Co.; 2010-07-01 to 2017-12-14; source msha-controller-operator-history
- **controller_controls_mine:** Chad C  Clark → Eagle One; 2017-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chad C  Clark → Clark Clay Co.; 2017-12-15 to current/open; source msha-controller-operator-history