# Relationship history for MSHA mine 4202157

Current hierarchy: **Elliot  Finley → Hiawatha Coal Company Inc → King 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

- **controller_controls_mine:** Mueller Industries Inc → King Mine; 1991-01-02 to 1997-09-08; source msha-controller-operator-history
- **operator_operates_mine:** United States Fuel Company → King Mine; 1996-12-01 to 1997-09-08; source msha-controller-operator-history
- **controller_controls_operator:** Mueller Industries Inc → United States Fuel Company; 1996-12-01 to 1997-09-08; source msha-controller-operator-history
- **operator_operates_mine:** Hiawatha Coal Company Inc → King Mine; 1997-09-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Elliot  Finley → King Mine; 1997-09-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elliot  Finley → Hiawatha Coal Company Inc; 1997-09-09 to current/open; source msha-controller-operator-history