# Relationship history for MSHA mine 4300614

Current hierarchy: **Douglas R  Casella → Casella Construction Inc → CEC 26x42 Jaw 7016**

- 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

- **controller_controls_mine:** Douglas R  Casella → CEC 26x42 Jaw 7016; 1998-06-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Casella Construction Inc → CEC 26x42 Jaw 7016; 2004-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Douglas R  Casella → Casella Construction Inc; 2004-09-01 to current/open; source msha-controller-operator-history