# Relationship history for MSHA mine 3304484

Current hierarchy: **Charles C  Ungurean → CCU Coal and Construction LLC → CCU Patterson Strip**

- 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:** Floyd E Kimble → CCU Patterson Strip; 1950-01-01 to 2001-08-28; source msha-controller-operator-history
- **operator_operates_mine:** Kimble Clay & Limestone → CCU Patterson Strip; 2001-08-29 to 2022-01-04; source msha-controller-operator-history
- **controller_controls_mine:** Keith B  Kimble → CCU Patterson Strip; 2001-08-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Keith B  Kimble → Kimble Clay & Limestone; 2001-08-29 to 2022-01-04; source msha-controller-operator-history
- **controller_controls_operator:** Floyd E Kimble → Kimble Clay & Limestone; 2001-08-29 to 2001-08-28; source msha-controller-operator-history
- **controller_controls_mine:** Charles C  Ungurean → CCU Patterson Strip; 2019-02-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** CCU Coal and Construction LLC → CCU Patterson Strip; 2022-01-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles C  Ungurean → CCU Coal and Construction LLC; 2022-01-05 to current/open; source msha-controller-operator-history