# Relationship history for MSHA mine 1517980

Current hierarchy: **Roaman  Phipps → Goodin Creek Contracting Inc → Goodin Creek**

- 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:** Goodin Creek Contracting Inc → Goodin Creek; 1997-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Roaman  Phipps → Goodin Creek; 1997-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roaman  Phipps → Goodin Creek Contracting Inc; 1997-09-01 to current/open; source msha-controller-operator-history