# Relationship history for MSHA mine 4405244

Current hierarchy: **Bowman Roby → Bowman Coal Company Inc → No 2**

- 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:** J & H Coal Corp → No 2; 1979-06-01 to 1980-12-14; source msha-controller-operator-history
- **controller_controls_mine:** Justice George → No 2; 1979-06-01 to 1980-12-14; source msha-controller-operator-history
- **controller_controls_operator:** Justice George → J & H Coal Corp; 1979-06-01 to 1980-12-14; source msha-controller-operator-history
- **controller_controls_mine:** Kyle Lawrence → No 2; 1980-07-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** K & V Coal Company Inc → No 2; 1980-12-15 to 1981-08-18; source msha-controller-operator-history
- **controller_controls_operator:** Kyle Lawrence → K & V Coal Company Inc; 1980-12-15 to 1981-08-18; source msha-controller-operator-history
- **operator_operates_mine:** Tandem Coal Corp → No 2; 1981-08-19 to 1982-05-02; source msha-controller-operator-history
- **controller_controls_mine:** Baker Roger & Edgar Jr → No 2; 1981-08-19 to 1982-05-02; source msha-controller-operator-history
- **controller_controls_operator:** Baker Roger & Edgar Jr → Tandem Coal Corp; 1981-08-19 to 1982-05-02; source msha-controller-operator-history
- **controller_controls_mine:** Bowman Roby Et Al → No 2; 1982-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Scorpio Energy Inc → No 2; 1982-05-03 to 1983-12-08; source msha-controller-operator-history
- **controller_controls_mine:** Hicks Ronald L → No 2; 1982-05-03 to 1983-12-08; source msha-controller-operator-history
- **controller_controls_operator:** Hicks Ronald L → Scorpio Energy Inc; 1982-05-03 to 1983-12-08; source msha-controller-operator-history
- **operator_operates_mine:** Bowman Coal Company Inc → No 2; 1983-12-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bowman Roby Et Al → Bowman Coal Company Inc; 1983-12-09 to current/open; source msha-controller-operator-history