# Relationship history for MSHA mine 1601291

Current hierarchy: **Robert A Michel Sr; Donnie  Michel → R A Michel Industries LLC → Michel Lease**

- 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:** R A Michel Industries LLC → Michel Lease; 1995-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Donnie  Michel et al → Michel Lease; 1995-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donnie  Michel et al → R A Michel Industries LLC; 1995-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert A Michel Sr et al → R A Michel Industries LLC; 1995-07-01 to current/open; source msha-controller-operator-history