# Relationship history for MSHA mine 4104876

Current hierarchy: **Lance  Jarratt; Keith  Jarratt → Jarratt Dirt Work and Paving, Inc. → Portable Screening Plant #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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Jarratt Dirt Work and Paving, Inc. → Portable Screening Plant #1; 2011-05-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lance  Jarratt et al → Portable Screening Plant #1; 2011-05-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lance  Jarratt et al → Jarratt Dirt Work and Paving, Inc.; 2011-05-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Keith  Jarratt et al → Jarratt Dirt Work and Paving, Inc.; 2011-05-02 to current/open; source msha-controller-operator-history