# Relationship history for MSHA mine 4607874

Current hierarchy: **Alpha Natural Resources Holdings, Inc → Stirrat Coal Company → No 38 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Richard H  Abraham et al → No 38 Mine (1); 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bee Tree Mining Inc → No 38 Mine (1); 1990-04-01 to 1991-09-04; source msha-controller-operator-history
- **controller_controls_mine:** Phillips Ronnie → No 38 Mine (1); 1990-04-01 to 1991-09-04; source msha-controller-operator-history
- **controller_controls_operator:** Phillips Ronnie → Bee Tree Mining Inc; 1990-04-01 to 1991-09-04; source msha-controller-operator-history
- **operator_operates_mine:** Bee Tree Mining Inc → No 38 Mine (1); 1991-09-05 to 1992-10-06; source msha-controller-operator-history
- **controller_controls_mine:** Martin Johnny → No 38 Mine (1); 1991-09-05 to 1992-10-06; source msha-controller-operator-history
- **controller_controls_operator:** Martin Johnny → Bee Tree Mining Inc; 1991-09-05 to 1992-10-06; source msha-controller-operator-history
- **operator_operates_mine:** Talon Resources Inc → No 38 Mine (1); 1992-10-07 to 1993-11-30; source msha-controller-operator-history
- **controller_controls_operator:** Richard H  Abraham et al → Talon Resources Inc; 1992-10-07 to 1993-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Massey Energy Company → No 38 Mine (1); 1993-11-15 to 2011-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Stirrat Coal Company → No 38 Mine (1); 1993-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Stirrat Coal Company; 1993-12-01 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → No 38 Mine (1); 2011-06-01 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Stirrat Coal Company; 2011-06-01 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources Holdings, Inc → No 38 Mine (1); 2016-07-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Stirrat Coal Company; 2016-07-26 to current/open; source msha-controller-operator-history