# Relationship history for MSHA mine 4606643

Current hierarchy: **Gibson Roger → Trojan Fuels Corp → No 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

- **controller_controls_mine:** Gibson Roger → No 1; 1981-02-25 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Go Fetch It Coal Company Inc → No 1; 1983-03-01 to 1984-04-08; source msha-controller-operator-history
- **controller_controls_mine:** Mc Coy Alice & Geneva → No 1; 1983-03-01 to 1984-04-08; source msha-controller-operator-history
- **controller_controls_operator:** Mc Coy Alice & Geneva → Go Fetch It Coal Company Inc; 1983-03-01 to 1984-04-08; source msha-controller-operator-history
- **operator_operates_mine:** Bolden & Tramel Mining Company Inc → No 1; 1984-04-09 to 1984-12-03; source msha-controller-operator-history
- **controller_controls_mine:** Tramel Paulette → No 1; 1984-04-09 to 1984-12-03; source msha-controller-operator-history
- **controller_controls_operator:** Tramel Paulette → Bolden & Tramel Mining Company Inc; 1984-04-09 to 1984-12-03; source msha-controller-operator-history
- **operator_operates_mine:** Keith Mining Company Inc → No 1; 1984-12-04 to 1985-02-18; source msha-controller-operator-history
- **controller_controls_mine:** Tramel Jeffery → No 1; 1984-12-04 to 1985-02-18; source msha-controller-operator-history
- **controller_controls_operator:** Tramel Jeffery → Keith Mining Company Inc; 1984-12-04 to 1985-02-18; source msha-controller-operator-history
- **operator_operates_mine:** Heaven Bound Coal Company Inc → No 1; 1985-02-19 to 1985-06-20; source msha-controller-operator-history
- **controller_controls_mine:** Seay Joseph → No 1; 1985-02-19 to 1985-06-20; source msha-controller-operator-history
- **controller_controls_operator:** Seay Joseph → Heaven Bound Coal Company Inc; 1985-02-19 to 1985-06-20; source msha-controller-operator-history
- **operator_operates_mine:** Stewart-Stone Coal Company Inc → No 1; 1985-06-21 to 1985-07-25; source msha-controller-operator-history
- **controller_controls_mine:** Stewart Floyd → No 1; 1985-06-21 to 1985-07-25; source msha-controller-operator-history
- **controller_controls_operator:** Stewart Floyd → Stewart-Stone Coal Company Inc; 1985-06-21 to 1985-07-25; source msha-controller-operator-history
- **operator_operates_mine:** Thorpe Mining Inc → No 1; 1985-07-26 to 1985-08-29; source msha-controller-operator-history
- **controller_controls_mine:** Fowler Tommy R → No 1; 1985-07-26 to 1985-08-29; source msha-controller-operator-history
- **controller_controls_operator:** Fowler Tommy R → Thorpe Mining Inc; 1985-07-26 to 1985-08-29; source msha-controller-operator-history
- **operator_operates_mine:** Big Rock Mining Company Inc → No 1; 1985-08-30 to 1986-02-09; source msha-controller-operator-history
- **controller_controls_mine:** Lester Larry → No 1; 1985-08-30 to 1986-02-09; source msha-controller-operator-history
- **controller_controls_operator:** Lester Larry → Big Rock Mining Company Inc; 1985-08-30 to 1986-02-09; source msha-controller-operator-history
- **operator_operates_mine:** Dan Ii Coal Company Inc → No 1; 1986-02-10 to 1986-05-27; source msha-controller-operator-history
- **controller_controls_mine:** Phillips Daniel → No 1; 1986-02-10 to 1986-05-27; source msha-controller-operator-history
- **controller_controls_operator:** Phillips Daniel → Dan Ii Coal Company Inc; 1986-02-10 to 1986-05-27; source msha-controller-operator-history
- **operator_operates_mine:** Dan Ii Coal Company Inc → No 1; 1986-05-28 to 1986-09-23; source msha-controller-operator-history
- **controller_controls_mine:** Keeney Bill → No 1; 1986-05-28 to 1986-09-23; source msha-controller-operator-history
- **controller_controls_operator:** Keeney Bill → Dan Ii Coal Company Inc; 1986-05-28 to 1986-09-23; source msha-controller-operator-history
- **operator_operates_mine:** Trojan Fuels Corp → No 1; 1986-09-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gibson Roger → Trojan Fuels Corp; 1986-09-24 to current/open; source msha-controller-operator-history