# Relationship history for MSHA mine 4403463

Current hierarchy: **Hibbits Jerry & Sam Sage → Deel Coal Company → No 3-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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Deel Willie → No 3-Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Deel Coal Company → No 3-Mine; 1973-01-01 to 1979-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Deel Willie → Deel Coal Company; 1973-01-01 to 1979-04-30; source msha-controller-operator-history
- **operator_operates_mine:** Deel Coal Company → No 3-Mine; 1979-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hibbits Jerry & Sam Sage → No 3-Mine; 1979-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hibbits Jerry & Sam Sage → Deel Coal Company; 1979-05-01 to current/open; source msha-controller-operator-history