# Relationship history for MSHA mine 2402315

Current hierarchy: **Sean M  Kelly → Blarney Stone → Wallace Creek Mine**

- 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:** Blarney Stone → Wallace Creek Mine; 2003-02-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Sean M  Kelly → Wallace Creek Mine; 2003-02-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sean M  Kelly → Blarney Stone; 2003-02-28 to current/open; source msha-controller-operator-history