# Relationship history for MSHA mine 4501145

Current hierarchy: **Robert R  Lloyd → Lloyd Enterprises Inc → Standard 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

- **controller_controls_mine:** Archibald Jim → Standard Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lloyd Enterprises Inc → Standard Pit; 1950-01-01 to 1981-01-28; source msha-controller-operator-history
- **controller_controls_mine:** Robert R  Lloyd → Standard Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert R  Lloyd → Lloyd Enterprises Inc; 1950-01-01 to 1981-01-28; source msha-controller-operator-history
- **operator_operates_mine:** Mid-Island Rock Products Inc → Standard Pit; 1981-01-29 to 1981-05-04; source msha-controller-operator-history
- **controller_controls_operator:** Archibald Jim → Mid-Island Rock Products Inc; 1981-01-29 to 1981-05-04; source msha-controller-operator-history
- **operator_operates_mine:** Lloyd Enterprises Inc → Standard Pit; 1981-05-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert R  Lloyd → Lloyd Enterprises Inc; 1981-05-05 to current/open; source msha-controller-operator-history