# Relationship history for MSHA mine 1517275

Current hierarchy: **Roger D  Clevinger → Diners' Prospect Inc → 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Roger D  Clevinger → No 4; 1987-01-13 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Little Ridge Coal Company Inc → No 4; 1992-08-01 to 1994-02-07; source msha-controller-operator-history
- **controller_controls_mine:** Coleman Clifford → No 4; 1992-08-01 to 1994-02-07; source msha-controller-operator-history
- **controller_controls_operator:** Coleman Clifford → Little Ridge Coal Company Inc; 1992-08-01 to 1994-02-07; source msha-controller-operator-history
- **operator_operates_mine:** Diners' Prospect Inc → No 4; 1994-02-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roger D  Clevinger → Diners' Prospect Inc; 1994-02-08 to current/open; source msha-controller-operator-history