# Relationship history for MSHA mine 4609409

Current hierarchy: **Alpha Metallurgical Resources Inc → Republic Energy LLC → SHM 12-66**

- 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:** Massey Energy Company → SHM 12-66; 1993-03-01 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Rag Aktiengesellschaft → SHM 12-66; 1996-11-01 to 2006-04-27; source msha-controller-operator-history
- **controller_controls_mine:** Rag Aktiengesellschaft → SHM 12-66; 1998-03-01 to 2004-07-29; source msha-controller-operator-history
- **controller_controls_mine:** Foundation Coal Corporation → SHM 12-66; 2004-07-30 to 2009-07-30; source msha-controller-operator-history
- **controller_controls_mine:** Foundation Coal Corporation → SHM 12-66; 2006-04-28 to 2009-07-30; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → SHM 12-66; 2009-07-31 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → SHM 12-66; 2009-07-31 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Massey Energy Company → SHM 12-66; 2009-08-25 to 2011-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Logan County Mine Services Inc → SHM 12-66; 2011-04-04 to 2012-02-19; source msha-controller-operator-history
- **controller_controls_mine:** Massey Energy Company → SHM 12-66; 2011-04-04 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Logan County Mine Services Inc; 2011-04-04 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → SHM 12-66; 2011-06-01 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → SHM 12-66; 2011-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Logan County Mine Services Inc; 2011-06-01 to 2012-02-19; source msha-controller-operator-history
- **operator_operates_mine:** Rum Creek Coal Sales → SHM 12-66; 2012-02-20 to 2014-02-10; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Rum Creek Coal Sales; 2012-02-20 to 2014-02-10; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Rum Creek Coal Sales; 2012-02-20 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → SHM 12-66; 2014-01-27 to 2016-07-25; source msha-controller-operator-history
- **operator_operates_mine:** Simmons Fork Mining → SHM 12-66; 2014-02-11 to 2014-04-06; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Simmons Fork Mining; 2014-02-11 to 2014-04-06; source msha-controller-operator-history
- **controller_controls_operator:** Foundation Coal Corporation → Simmons Fork Mining; 2014-02-11 to 2009-07-30; source msha-controller-operator-history
- **controller_controls_operator:** Rag Aktiengesellschaft → Simmons Fork Mining; 2014-02-11 to 2006-04-27; source msha-controller-operator-history
- **operator_operates_mine:** Pioneer Fuel Corporation → SHM 12-66; 2014-04-07 to 2014-08-14; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Pioneer Fuel Corporation; 2014-04-07 to 2014-08-14; source msha-controller-operator-history
- **controller_controls_operator:** Foundation Coal Corporation → Pioneer Fuel Corporation; 2014-04-07 to 2009-07-30; source msha-controller-operator-history
- **controller_controls_operator:** Rag Aktiengesellschaft → Pioneer Fuel Corporation; 2014-04-07 to 2004-07-29; source msha-controller-operator-history
- **operator_operates_mine:** Republic Energy LLC → SHM 12-66; 2014-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Republic Energy LLC; 2014-08-15 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Republic Energy LLC; 2014-08-15 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources Holdings, Inc → SHM 12-66; 2016-07-26 to 2018-11-08; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Rum Creek Coal Sales; 2016-07-26 to 2014-02-10; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Republic Energy LLC; 2016-07-26 to 2018-11-08; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources Holdings, Inc → SHM 12-66; 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 2014-08-14; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Metallurgical Resources Inc → SHM 12-66; 2018-11-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Metallurgical Resources Inc → Rum Creek Coal Sales; 2018-11-09 to 2014-02-10; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Metallurgical Resources Inc → Republic Energy LLC; 2018-11-09 to current/open; source msha-controller-operator-history