# Relationship history for MSHA mine 4601537

Current hierarchy: **Patriot Coal Corporation → Gateway Eagle Coal Company, LLC → Farley Eagle Mine**

- 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:** Eastern Associated Coal Corp → Farley Eagle Mine; 1950-01-01 to 1987-05-14; source msha-controller-operator-history
- **controller_controls_mine:** Eastern Gas & Fuel Association → Farley Eagle Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eastern Gas & Fuel Association → Eastern Associated Coal Corp; 1950-01-01 to 1987-05-14; source msha-controller-operator-history
- **controller_controls_mine:** Hanson PLC → Farley Eagle Mine; 1987-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Eastern Associated Coal Corp → Farley Eagle Mine; 1987-05-15 to 2005-06-15; source msha-controller-operator-history
- **controller_controls_operator:** Hanson PLC → Eastern Associated Coal Corp; 1987-05-15 to 2005-06-15; source msha-controller-operator-history
- **controller_controls_mine:** Long Branch Energy Corporation → Farley Eagle Mine; 1989-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Long Branch Energy → Farley Eagle Mine; 2005-06-16 to 2012-02-23; source msha-controller-operator-history
- **controller_controls_operator:** Long Branch Energy Corporation → Long Branch Energy; 2005-06-16 to 2012-02-23; source msha-controller-operator-history
- **controller_controls_mine:** Patriot Coal Corporation → Farley Eagle Mine; 2011-08-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Gateway Eagle Coal Company, LLC → Farley Eagle Mine; 2012-02-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patriot Coal Corporation → Gateway Eagle Coal Company, LLC; 2012-02-24 to current/open; source msha-controller-operator-history