# Relationship history for MSHA mine 3004047

Current hierarchy: **Jason  Knowles → Empire Crushing LLC → McClosky s130 screener sn#81352**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Empire Crushing LLC → McClosky s130 screener sn#81352; 2020-04-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jason  Knowles et al → McClosky s130 screener sn#81352; 2020-04-08 to 2021-07-10; source msha-controller-operator-history
- **controller_controls_operator:** Jason  Knowles et al → Empire Crushing LLC; 2020-04-08 to 2021-07-10; source msha-controller-operator-history
- **controller_controls_operator:** Bradley  Rogers et al → Empire Crushing LLC; 2020-04-08 to 2021-07-10; source msha-controller-operator-history
- **controller_controls_mine:** Jason  Knowles → McClosky s130 screener sn#81352; 2021-07-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jason  Knowles → Empire Crushing LLC; 2021-07-11 to current/open; source msha-controller-operator-history