# Relationship history for MSHA mine 4608116

Current hierarchy: **Asbury Jerry → O T Coal Company Inc → Mine No 1 (1)**

- 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

- **operator_operates_mine:** C & C Coal Company Inc → Mine No 1 (1); 1991-12-01 to 1992-03-14; source msha-controller-operator-history
- **controller_controls_mine:** Hylton Charles R → Mine No 1 (1); 1991-12-01 to 1992-03-14; source msha-controller-operator-history
- **controller_controls_operator:** Hylton Charles R → C & C Coal Company Inc; 1991-12-01 to 1992-03-14; source msha-controller-operator-history
- **operator_operates_mine:** O T Coal Company Inc → Mine No 1 (1); 1992-03-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Asbury Jerry → Mine No 1 (1); 1992-03-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Asbury Jerry → O T Coal Company Inc; 1992-03-15 to current/open; source msha-controller-operator-history