# Relationship history for MSHA mine 4609348

Current hierarchy: **Alpha Metallurgical Resources Inc → Brooks Run South Mining, LLC → Horse Creek No 1**

- 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:** Alpha Natural Resources, Inc. → Horse Creek No 1; 2003-02-01 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → Horse Creek No 1; 2007-06-30 to 2016-07-25; source msha-controller-operator-history
- **operator_operates_mine:** Brooks Run Mining Company, LLC → Horse Creek No 1; 2009-08-06 to 2014-01-19; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Brooks Run Mining Company, LLC; 2009-08-06 to 2014-01-19; source msha-controller-operator-history
- **operator_operates_mine:** Brooks Run South Mining, LLC → Horse Creek No 1; 2014-01-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Brooks Run South Mining, LLC; 2014-01-20 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources Holdings, Inc → Horse Creek No 1; 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 2014-01-19; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources Holdings, Inc → Horse Creek No 1; 2016-07-26 to 2018-11-08; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Brooks Run South Mining, LLC; 2016-07-26 to 2018-11-08; source msha-controller-operator-history
- **controller_controls_mine:** Pristine Clean Energy LLC → Horse Creek No 1; 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 2014-01-19; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Metallurgical Resources Inc → Horse Creek No 1; 2018-11-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Metallurgical Resources Inc → Brooks Run South Mining, LLC; 2018-11-09 to current/open; source msha-controller-operator-history