# Relationship history for MSHA mine 1002153

Current hierarchy: **James F  Yates → Yates Excavation Inc. → Yates #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:** Yates Excavation Inc. → Yates #1; 2008-03-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James F  Yates → Yates #1; 2008-03-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James F  Yates → Yates Excavation Inc.; 2008-03-30 to current/open; source msha-controller-operator-history