# Relationship history for MSHA mine 3610198

Current hierarchy: **Samuel  Stile; Jennifer  Stile → Stile's Marine & Maintenance Inc. → Big Sam**

- 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:** Stile's Marine & Maintenance Inc. → Big Sam; 2016-12-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jennifer  Stile → Big Sam; 2016-12-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jennifer  Stile → Stile's Marine & Maintenance Inc.; 2016-12-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Samuel  Stile → Stile's Marine & Maintenance Inc.; 2016-12-05 to current/open; source msha-controller-operator-history