# Relationship history for MSHA mine 4609026

Current hierarchy: **Alpha Metallurgical Resources Inc → Republic Energy LLC → Ewing Fork No. 1 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

- **controller_controls_mine:** Rag Aktiengesellschaft → Ewing Fork No. 1 Surface Mine; 1996-11-01 to 2006-04-27; source msha-controller-operator-history
- **controller_controls_mine:** Rag Aktiengesellschaft → Ewing Fork No. 1 Surface Mine; 1998-03-01 to 2004-07-29; source msha-controller-operator-history
- **operator_operates_mine:** Simmons Fork Mining, Inc. → Ewing Fork No. 1 Surface Mine; 2004-02-20 to 2014-04-03; source msha-controller-operator-history
- **controller_controls_operator:** Rag Aktiengesellschaft → Simmons Fork Mining, Inc.; 2004-02-20 to 2006-04-27; source msha-controller-operator-history
- **controller_controls_mine:** Foundation Coal Corporation → Ewing Fork No. 1 Surface Mine; 2004-07-30 to 2009-07-30; source msha-controller-operator-history
- **controller_controls_mine:** Foundation Coal Corporation → Ewing Fork No. 1 Surface Mine; 2006-04-28 to 2009-07-30; source msha-controller-operator-history
- **controller_controls_operator:** Foundation Coal Corporation → Simmons Fork Mining, Inc.; 2006-04-28 to 2009-07-30; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → Ewing Fork No. 1 Surface Mine; 2009-07-31 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → Ewing Fork No. 1 Surface Mine; 2009-07-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Simmons Fork Mining, Inc.; 2009-07-31 to 2014-04-03; source msha-controller-operator-history
- **controller_controls_mine:** Massey Energy Company → Ewing Fork No. 1 Surface Mine; 2009-08-25 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → Ewing Fork No. 1 Surface Mine; 2014-01-27 to 2016-07-25; source msha-controller-operator-history
- **operator_operates_mine:** Pioneer Fuel Corporation → Ewing Fork No. 1 Surface Mine; 2014-04-04 to 2015-01-05; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Pioneer Fuel Corporation; 2014-04-04 to 2015-01-05; source msha-controller-operator-history
- **controller_controls_operator:** Foundation Coal Corporation → Pioneer Fuel Corporation; 2014-04-04 to 2009-07-30; source msha-controller-operator-history
- **controller_controls_operator:** Rag Aktiengesellschaft → Pioneer Fuel Corporation; 2014-04-04 to 2004-07-29; source msha-controller-operator-history
- **operator_operates_mine:** Republic Energy Inc. → Ewing Fork No. 1 Surface Mine; 2015-01-06 to 2016-01-24; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Republic Energy Inc.; 2015-01-06 to 2016-01-24; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Republic Energy Inc.; 2015-01-06 to 2011-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Pioneer Fuel → Ewing Fork No. 1 Surface Mine; 2016-01-25 to 2018-11-26; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Pioneer Fuel; 2016-01-25 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_operator:** Foundation Coal Corporation → Pioneer Fuel; 2016-01-25 to 2009-07-30; source msha-controller-operator-history
- **controller_controls_operator:** Rag Aktiengesellschaft → Pioneer Fuel; 2016-01-25 to 2004-07-29; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources Holdings, Inc → Ewing Fork No. 1 Surface Mine; 2016-07-26 to 2018-11-08; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Republic Energy Inc.; 2016-07-26 to 2016-01-24; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources Holdings, Inc → Ewing Fork No. 1 Surface Mine; 2016-07-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Pioneer Fuel Corporation; 2016-07-26 to 2015-01-05; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Pioneer Fuel; 2016-07-26 to 2018-11-26; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Metallurgical Resources Inc → Ewing Fork No. 1 Surface Mine; 2018-11-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Metallurgical Resources Inc → Republic Energy Inc.; 2018-11-09 to 2016-01-24; source msha-controller-operator-history
- **operator_operates_mine:** Republic Energy LLC → Ewing Fork No. 1 Surface Mine; 2018-11-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Republic Energy LLC; 2018-11-27 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Metallurgical Resources Inc → Republic Energy LLC; 2018-11-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Republic Energy LLC; 2018-11-27 to 2018-11-08; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Republic Energy LLC; 2018-11-27 to 2011-05-31; source msha-controller-operator-history