# Relationship history for MSHA mine 4606027

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

## Valid-time edges

- **operator_operates_mine:** Howard Farley Coal Company Inc → No 1 Mine; 1979-05-01 to 1986-04-17; source msha-controller-operator-history
- **controller_controls_mine:** Farley Howard → No 1 Mine; 1979-05-01 to 1986-04-17; source msha-controller-operator-history
- **controller_controls_operator:** Farley Howard → Howard Farley Coal Company Inc; 1979-05-01 to 1986-04-17; source msha-controller-operator-history
- **operator_operates_mine:** Farley Minerals & Reclamation Company Inc → No 1 Mine; 1986-04-18 to 1993-01-07; source msha-controller-operator-history
- **controller_controls_mine:** Farley Elery → No 1 Mine; 1986-04-18 to 1993-01-07; source msha-controller-operator-history
- **controller_controls_operator:** Farley Elery → Farley Minerals & Reclamation Company Inc; 1986-04-18 to 1993-01-07; source msha-controller-operator-history
- **operator_operates_mine:** Shively Coal Company Inc → No 1 Mine; 1993-01-08 to 1995-08-28; source msha-controller-operator-history
- **controller_controls_mine:** Whitten Keith R → No 1 Mine; 1993-01-08 to 1995-08-28; source msha-controller-operator-history
- **controller_controls_operator:** Whitten Keith R → Shively Coal Company Inc; 1993-01-08 to 1995-08-28; source msha-controller-operator-history
- **controller_controls_mine:** Massey Energy Company → No 1 Mine; 1993-03-01 to 2011-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Rum Creek Coal Sales Inc → No 1 Mine; 1995-08-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Rum Creek Coal Sales Inc; 1995-08-29 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → No 1 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 2016-07-25; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources Holdings, Inc → No 1 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 2018-11-08; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Metallurgical Resources Inc → No 1 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 current/open; source msha-controller-operator-history