# Relationship history for MSHA mine 4609247

Current hierarchy: **Pristine Clean Energy LLC → Brooks Run Mining Company LLC → Bens Creek No 1 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: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **controller_controls_mine:** Alpha Natural Resources, Inc. → Bens Creek No 1 Mine; 2003-02-01 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → Bens Creek No 1 Mine; 2004-09-21 to 2016-07-25; source msha-controller-operator-history
- **operator_operates_mine:** Riverside Energy Company, LLC → Bens Creek No 1 Mine; 2007-11-15 to 2009-01-18; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Riverside Energy Company, LLC; 2007-11-15 to 2009-01-18; source msha-controller-operator-history
- **operator_operates_mine:** Brooks Run Mining Company LLC → Bens Creek No 1 Mine; 2009-01-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Brooks Run Mining Company LLC; 2009-01-19 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources Holdings, Inc → Bens Creek No 1 Mine; 2016-07-26 to 2017-10-04; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Brooks Run Mining Company LLC; 2016-07-26 to 2017-10-04; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources Holdings, Inc → Bens Creek No 1 Mine; 2016-07-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Riverside Energy Company, LLC; 2016-07-26 to 2009-01-18; source msha-controller-operator-history
- **controller_controls_mine:** Pristine Clean Energy LLC → Bens Creek No 1 Mine; 2017-10-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pristine Clean Energy LLC → Brooks Run Mining Company LLC; 2017-10-05 to current/open; source msha-controller-operator-history