# Relationship history for MSHA mine 4608279

Current hierarchy: **Alpha Metallurgical Resources Inc → Rum Creek Coal Sales, Inc. → Anna Branch Surface 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Rum Creek Coal Sales, Inc. → Anna Branch Surface Mine; 1993-03-01 to 2008-02-24; source msha-controller-operator-history
- **controller_controls_mine:** Massey Energy Company → Anna Branch Surface Mine; 1993-03-01 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Rum Creek Coal Sales, Inc.; 1993-03-01 to 2008-02-24; source msha-controller-operator-history
- **operator_operates_mine:** Mountain Reclamation & Construction → Anna Branch Surface Mine; 2008-02-25 to 2014-03-26; source msha-controller-operator-history
- **controller_controls_mine:** Eddie  Hurley → Anna Branch Surface Mine; 2008-02-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eddie  Hurley → Mountain Reclamation & Construction; 2008-02-25 to 2014-03-26; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → Anna Branch Surface Mine; 2011-06-01 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Rum Creek Coal Sales, Inc.; 2011-06-01 to 2008-02-24; source msha-controller-operator-history
- **operator_operates_mine:** Rum Creek Coal Sales, Inc. → Anna Branch Surface Mine; 2014-03-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Rum Creek Coal Sales, Inc.; 2014-03-27 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Rum Creek Coal Sales, Inc.; 2014-03-27 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources Holdings, Inc → Anna Branch Surface Mine; 2016-07-26 to 2018-11-08; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Rum Creek Coal Sales, Inc.; 2016-07-26 to 2008-02-24; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Rum Creek Coal Sales, Inc.; 2016-07-26 to 2018-11-08; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Metallurgical Resources Inc → Anna Branch Surface Mine; 2018-11-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Metallurgical Resources Inc → Rum Creek Coal Sales, Inc.; 2018-11-09 to 2008-02-24; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Metallurgical Resources Inc → Rum Creek Coal Sales, Inc.; 2018-11-09 to current/open; source msha-controller-operator-history