# Relationship history for MSHA mine 1510359

Current hierarchy: **Jones Gary → Biggs Branch Coal Company Inc → No 5 Mine (D)**

- 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:** Salyers Gene & William Stiltner → No 5 Mine (D); 1977-03-02 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Biggs Branch Mining Company → No 5 Mine (D); 1977-04-01 to 1979-08-12; source msha-controller-operator-history
- **controller_controls_mine:** Jones Gary → No 5 Mine (D); 1977-04-01 to 1979-08-12; source msha-controller-operator-history
- **controller_controls_operator:** Jones Gary → Biggs Branch Mining Company; 1977-04-01 to 1979-08-12; source msha-controller-operator-history
- **controller_controls_mine:** Jones Gary → No 5 Mine (D); 1979-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Green Mountain Energy → No 5 Mine (D); 1979-08-13 to 1980-01-21; source msha-controller-operator-history
- **controller_controls_mine:** Bostic Dwight → No 5 Mine (D); 1979-08-13 to 1980-01-21; source msha-controller-operator-history
- **controller_controls_operator:** Bostic Dwight → Green Mountain Energy; 1979-08-13 to 1980-01-21; source msha-controller-operator-history
- **operator_operates_mine:** Stiltner & Salyers Coal Company → No 5 Mine (D); 1980-01-22 to 1981-02-19; source msha-controller-operator-history
- **controller_controls_operator:** Salyers Gene & William Stiltner → Stiltner & Salyers Coal Company; 1980-01-22 to 1981-02-19; source msha-controller-operator-history
- **operator_operates_mine:** Biggs Branch Coal Company Inc → No 5 Mine (D); 1981-02-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jones Gary → Biggs Branch Coal Company Inc; 1981-02-20 to current/open; source msha-controller-operator-history