# Relationship history for MSHA mine 4603090

Current hierarchy: **Patriot Coal Corporation → Kanawha Eagle Coal, LLC → Winifrede Dock**

- 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

- **operator_operates_mine:** Carbon Fuel Company → Winifrede Dock; 1950-01-01 to 1982-06-11; source msha-controller-operator-history
- **controller_controls_mine:** ITT Corporation → Winifrede Dock; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** ITT Corporation → Carbon Fuel Company; 1950-01-01 to 1982-06-11; source msha-controller-operator-history
- **controller_controls_mine:** Usx Corp → Winifrede Dock; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** United States Steel Mining Company Inc → Winifrede Dock; 1982-06-12 to 1992-09-07; source msha-controller-operator-history
- **controller_controls_operator:** Usx Corp → United States Steel Mining Company Inc; 1982-06-12 to 1992-09-07; source msha-controller-operator-history
- **operator_operates_mine:** Winifrede Dock L L C → Winifrede Dock; 1992-09-08 to 2000-02-29; source msha-controller-operator-history
- **controller_controls_mine:** Hatfield & Sons Of Wv Inc  et al → Winifrede Dock; 1992-09-08 to 2000-02-29; source msha-controller-operator-history
- **controller_controls_operator:** Hatfield & Sons Of Wv Inc  et al → Winifrede Dock L L C; 1992-09-08 to 2000-02-29; source msha-controller-operator-history
- **operator_operates_mine:** Winifrede Dock LLC → Winifrede Dock; 2000-03-01 to 2014-01-08; source msha-controller-operator-history
- **controller_controls_mine:** James O  Bunn  et al → Winifrede Dock; 2000-03-01 to 2012-02-29; source msha-controller-operator-history
- **controller_controls_operator:** James O  Bunn  et al → Winifrede Dock LLC; 2000-03-01 to 2012-02-29; source msha-controller-operator-history
- **controller_controls_operator:** Franklin D  Robertson  et al → Winifrede Dock LLC; 2000-03-01 to 2012-02-29; source msha-controller-operator-history
- **controller_controls_mine:** Patriot Coal Corporation → Winifrede Dock; 2012-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patriot Coal Corporation → Winifrede Dock LLC; 2012-03-01 to 2014-01-08; source msha-controller-operator-history
- **operator_operates_mine:** Kanawha Eagle Coal, LLC → Winifrede Dock; 2014-01-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Patriot Coal Corporation → Winifrede Dock; 2014-01-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patriot Coal Corporation → Kanawha Eagle Coal, LLC; 2014-01-09 to current/open; source msha-controller-operator-history