# Relationship history for MSHA mine 1518785

Current hierarchy: **Estate of Homer Short → KC Coals Inc → Mine #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:** KC Coals Inc → Mine #1; 2004-08-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Homer  Short → Mine #1; 2004-08-06 to 2013-08-05; source msha-controller-operator-history
- **controller_controls_operator:** Homer  Short → KC Coals Inc; 2004-08-06 to 2013-08-05; source msha-controller-operator-history
- **controller_controls_mine:** Estate of Homer Short → Mine #1; 2013-08-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Estate of Homer Short → KC Coals Inc; 2013-08-06 to current/open; source msha-controller-operator-history