# Relationship history for MSHA mine 3401793

Current hierarchy: **Michael B  Mullett → R & M Resources Inc → R&M #3**

- 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:** R & M Resources Inc → R&M #3; 1996-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Michael B  Mullett → R&M #3; 1996-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael B  Mullett → R & M Resources Inc; 1996-05-01 to current/open; source msha-controller-operator-history