# Relationship history for MSHA mine 4105190

Current hierarchy: **James Crockett  Boney → Jet Underground Utilities Inc → Jet Underground Utilities No. 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:** Jet Underground Utilities Inc → Jet Underground Utilities No. 1; 2016-05-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James Crockett  Boney → Jet Underground Utilities No. 1; 2016-05-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James Crockett  Boney → Jet Underground Utilities Inc; 2016-05-02 to current/open; source msha-controller-operator-history