# Relationship history for MSHA mine 1510753

Current hierarchy: **Alpha Natural Resources Holdings, Inc → Clean Energy Mining Co. → Mine #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

- **operator_operates_mine:** Mc Innes Coal Mining Company → Mine #1; 1977-09-01 to 1980-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Moore McCormack Resources Inc → Mine #1; 1977-09-01 to 1980-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Moore McCormack Resources Inc → Mc Innes Coal Mining Company; 1977-09-01 to 1980-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Mc Innes Coal Mining Company → Mine #1; 1981-01-01 to 1984-10-03; source msha-controller-operator-history
- **controller_controls_mine:** Carolina Power & Light Company → Mine #1; 1981-01-01 to 1984-10-03; source msha-controller-operator-history
- **controller_controls_operator:** Carolina Power & Light Company → Mc Innes Coal Mining Company; 1981-01-01 to 1984-10-03; source msha-controller-operator-history
- **operator_operates_mine:** Sidney Coal Company Inc → Mine #1; 1984-10-04 to 1988-06-12; source msha-controller-operator-history
- **controller_controls_mine:** Massey Energy Company → Mine #1; 1984-10-04 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Sidney Coal Company Inc; 1984-10-04 to 1988-06-12; source msha-controller-operator-history
- **controller_controls_mine:** Joby  Fields → Mine #1; 1987-07-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** New Era Coal Company Inc → Mine #1; 1988-06-13 to 1991-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Carl  Kirk et al → Mine #1; 1988-06-13 to 1991-10-31; source msha-controller-operator-history
- **controller_controls_operator:** Carl  Kirk et al → New Era Coal Company Inc; 1988-06-13 to 1991-10-31; source msha-controller-operator-history
- **operator_operates_mine:** Mate Creek Development Company → Mine #1; 1991-11-01 to 1994-02-27; source msha-controller-operator-history
- **controller_controls_operator:** Joby  Fields → Mate Creek Development Company; 1991-11-01 to 1994-02-27; source msha-controller-operator-history
- **operator_operates_mine:** Clean Energy Mining Co. → Mine #1; 1994-02-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Clean Energy Mining Co.; 1994-02-28 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → Mine #1; 2011-06-01 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Sidney Coal Company Inc; 2011-06-01 to 1988-06-12; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Clean Energy Mining Co.; 2011-06-01 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources Holdings, Inc → Mine #1; 2016-07-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Sidney Coal Company Inc; 2016-07-26 to 1988-06-12; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Clean Energy Mining Co.; 2016-07-26 to current/open; source msha-controller-operator-history