# Relationship history for MSHA mine 1511844

Current hierarchy: **United  Company → Belfry Coal Corp → Belfry No 4**

- 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:** United  Company → Belfry No 4; 1977-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** G & J Coal Company Inc → Belfry No 4; 1979-02-01 to 1979-11-22; source msha-controller-operator-history
- **controller_controls_mine:** Davis James O Et Al → Belfry No 4; 1979-02-01 to 1979-11-22; source msha-controller-operator-history
- **controller_controls_operator:** Davis James O Et Al → G & J Coal Company Inc; 1979-02-01 to 1979-11-22; source msha-controller-operator-history
- **operator_operates_mine:** Belfry Coal Corp → Belfry No 4; 1979-11-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** United  Company → Belfry Coal Corp; 1979-11-23 to current/open; source msha-controller-operator-history