# Relationship history for MSHA mine 4503596

Current hierarchy: **Debrah K  Allen; Michael A  Allen → Michael Allen Trucking & Excavating Inc → EAGLE**

- 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:** Michael Allen Trucking & Excavating Inc → EAGLE; 2006-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Michael A  Allen  et al → EAGLE; 2006-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael A  Allen  et al → Michael Allen Trucking & Excavating Inc; 2006-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Debrah K  Allen  et al → Michael Allen Trucking & Excavating Inc; 2006-03-16 to current/open; source msha-controller-operator-history