# Relationship history for MSHA mine 5001650

Current hierarchy: **James L  Thurman → Earth Movers Of Fairbanks → Cleary Creek at Chantanka**

- 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:** James L  Thurman → Cleary Creek at Chantanka; 1979-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Earth Movers Of Fairbanks → Cleary Creek at Chantanka; 1999-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James L  Thurman → Earth Movers Of Fairbanks; 1999-05-01 to current/open; source msha-controller-operator-history