# Relationship history for MSHA mine 3901602

Current hierarchy: **Kevin  Logan → L.E.C., Inc. → Logan Crusher 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:** L.E.C., Inc. → Logan Crusher 1; 2013-07-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kevin  Logan → Logan Crusher 1; 2013-07-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kevin  Logan → L.E.C., Inc.; 2013-07-29 to current/open; source msha-controller-operator-history