# Relationship history for MSHA mine 3303878

Current hierarchy: **Collins Gregory Kent → Eagle Stone Inc → Lominco Pit #005**

- 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:** Humphrey William → Lominco Pit #005; 1976-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lominco Inc → Lominco Pit #005; 1981-10-01 to 1982-11-22; source msha-controller-operator-history
- **controller_controls_operator:** Humphrey William → Lominco Inc; 1981-10-01 to 1982-11-22; source msha-controller-operator-history
- **controller_controls_mine:** Collins Gregory Kent → Lominco Pit #005; 1982-08-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Eagle Stone Inc → Lominco Pit #005; 1982-11-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Collins Gregory Kent → Eagle Stone Inc; 1982-11-23 to current/open; source msha-controller-operator-history