# Relationship history for MSHA mine 1515030

Current hierarchy: **Hacker Scott → Stardust Mining Company → 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Sue Ann Coal Company Inc → No 1; 1984-12-01 to 1986-05-27; source msha-controller-operator-history
- **controller_controls_mine:** Reed Stanley → No 1; 1984-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Reed Stanley → Sue Ann Coal Company Inc; 1984-12-01 to 1986-05-27; source msha-controller-operator-history
- **operator_operates_mine:** Stardust Mining Company → No 1; 1986-05-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hacker Scott → No 1; 1986-05-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hacker Scott → Stardust Mining Company; 1986-05-28 to current/open; source msha-controller-operator-history