# Relationship history for MSHA mine 3302628

Current hierarchy: **Catlett William → C & W Mining Company Inc → C & W No 1 Auger**

- 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:** C & W Mining Company Inc → C & W No 1 Auger; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Catlett William → C & W No 1 Auger; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Catlett William → C & W Mining Company Inc; 1950-01-01 to current/open; source msha-controller-operator-history