# Relationship history for MSHA mine 4609236

Current hierarchy: **Edward A  Asbury → Shane Coal Company → Shane No 10**

- 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:** Kevin  Large → Shane No 10; 2001-06-14 to 2007-04-09; source msha-controller-operator-history
- **controller_controls_mine:** Edward A  Asbury → Shane No 10; 2007-04-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Shane Coal Company → Shane No 10; 2007-09-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edward A  Asbury → Shane Coal Company; 2007-09-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kevin  Large → Shane Coal Company; 2007-09-14 to 2007-04-09; source msha-controller-operator-history