# Relationship history for MSHA mine 4703844

Current hierarchy: **Nathan  Weness; Barry  Weness → Revline, Inc. → Revline Grantsburg Pit**

- 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:** Revline, Inc. → Revline Grantsburg Pit; 2019-05-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Barry  Weness et al → Revline Grantsburg Pit; 2019-05-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Barry  Weness et al → Revline, Inc.; 2019-05-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Nathan  Weness et al → Revline, Inc.; 2019-05-06 to current/open; source msha-controller-operator-history