# Relationship history for MSHA mine 4605300

Current hierarchy: **Mullins Jack G → Trace Fork Coal Inc → Mine 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

- **controller_controls_mine:** Mullins Ira → Mine No 2; 1950-01-01 to 1978-09-15; source msha-controller-operator-history
- **controller_controls_mine:** Younce Leonard → Mine No 2; 1976-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mullins Coal Company Inc → Mine No 2; 1976-12-01 to 1978-08-29; source msha-controller-operator-history
- **controller_controls_operator:** Mullins Ira → Mullins Coal Company Inc; 1976-12-01 to 1978-08-29; source msha-controller-operator-history
- **operator_operates_mine:** Mullins Coal Company Inc → Mine No 2; 1978-08-30 to 1982-07-07; source msha-controller-operator-history
- **controller_controls_mine:** Mineral Resources International Ltd → Mine No 2; 1978-08-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mineral Resources International Ltd → Mullins Coal Company Inc; 1978-08-30 to 1982-07-07; source msha-controller-operator-history
- **controller_controls_mine:** Imperial-Pacific Investments Inc → Mine No 2; 1981-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Winchester Coals Inc → Mine No 2; 1982-07-08 to 1983-02-15; source msha-controller-operator-history
- **controller_controls_operator:** Imperial-Pacific Investments Inc → Winchester Coals Inc; 1982-07-08 to 1983-02-15; source msha-controller-operator-history
- **operator_operates_mine:** Dingess Mine Service Inc → Mine No 2; 1983-02-16 to 1985-03-04; source msha-controller-operator-history
- **controller_controls_mine:** Dingess John → Mine No 2; 1983-02-16 to 1985-03-04; source msha-controller-operator-history
- **controller_controls_operator:** Dingess John → Dingess Mine Service Inc; 1983-02-16 to 1985-03-04; source msha-controller-operator-history
- **operator_operates_mine:** Mullins Coal Company Inc → Mine No 2; 1985-03-05 to 1985-04-28; source msha-controller-operator-history
- **controller_controls_mine:** Imperial-Pacific Investments Inc → Mine No 2; 1985-03-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Imperial-Pacific Investments Inc → Mullins Coal Company Inc; 1985-03-05 to 1985-04-28; source msha-controller-operator-history
- **operator_operates_mine:** New River Fuel Inc → Mine No 2; 1985-04-29 to 1987-03-30; source msha-controller-operator-history
- **controller_controls_operator:** Younce Leonard → New River Fuel Inc; 1985-04-29 to 1987-03-30; source msha-controller-operator-history
- **operator_operates_mine:** Mullins Coal Company Inc → Mine No 2; 1987-03-31 to 1990-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Imperial-Pacific Investments Inc → Mullins Coal Company Inc; 1987-03-31 to 1990-02-28; source msha-controller-operator-history
- **operator_operates_mine:** Trace Fork Coal Inc → Mine No 2; 1990-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mullins Jack G → Mine No 2; 1990-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mullins Jack G → Trace Fork Coal Inc; 1990-03-01 to current/open; source msha-controller-operator-history