# Relationship history for MSHA mine 0404744

Current hierarchy: **Richard S  Moore → Moore's Gravel, Inc → Moores Gravel 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:** Moore's Gravel → Moores Gravel Inc; 1985-06-01 to 2011-01-06; source msha-controller-operator-history
- **controller_controls_mine:** Richard S  Moore → Moores Gravel Inc; 1985-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard S  Moore → Moore's Gravel; 1985-06-01 to 2011-01-06; source msha-controller-operator-history
- **operator_operates_mine:** Moore's Gravel, Inc → Moores Gravel Inc; 2011-01-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Richard S  Moore → Moores Gravel Inc; 2011-01-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard S  Moore → Moore's Gravel, Inc; 2011-01-07 to current/open; source msha-controller-operator-history