# Relationship history for MSHA mine 5001709

Current hierarchy: **Jesse A  Drake → Drake Bros. Inc. → Mobile Crushing Plant**

- 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

- **controller_controls_mine:** Dan  Drake → Mobile Crushing Plant; 1994-06-01 to 2017-06-06; source msha-controller-operator-history
- **operator_operates_mine:** Drake Bros. Inc. → Mobile Crushing Plant; 2001-08-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dan  Drake → Drake Bros. Inc.; 2001-08-17 to 2017-06-06; source msha-controller-operator-history
- **controller_controls_mine:** Jesse A  Drake → Mobile Crushing Plant; 2017-06-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jesse A  Drake → Drake Bros. Inc.; 2017-06-07 to current/open; source msha-controller-operator-history