# Relationship history for MSHA mine 4503444

Current hierarchy: **Daniel C O'Neill → O'Neill & Sons Inc → C W O'NEILL PIT**

- 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:** O'Neill & Sons Inc → C W O'NEILL PIT; 2000-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Daniel C O'Neill → C W O'NEILL PIT; 2000-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Daniel C O'Neill → O'Neill & Sons Inc; 2000-04-01 to current/open; source msha-controller-operator-history