# Relationship history for MSHA mine 3609232

Current hierarchy: **Scott L  Wilcox → Stone Edge, Inc. → Stone Edge, Inc.**

- 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:** Brown Stone → Stone Edge, Inc.; 2004-04-26 to 2005-05-11; source msha-controller-operator-history
- **controller_controls_mine:** Woodrow W  Brown → Stone Edge, Inc.; 2004-04-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Woodrow W  Brown → Brown Stone; 2004-04-26 to 2005-05-11; source msha-controller-operator-history
- **operator_operates_mine:** Stone Edge, Inc. → Stone Edge, Inc.; 2005-05-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Scott L  Wilcox → Stone Edge, Inc.; 2005-05-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott L  Wilcox → Stone Edge, Inc.; 2005-05-12 to current/open; source msha-controller-operator-history