# Relationship history for MSHA mine 3401912

Current hierarchy: **Larry L  Stewart → Material Service Corp → MS of Wewoka**

- 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:** Material Service Corp → MS of Wewoka; 2003-09-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Larry L  Stewart et al → MS of Wewoka; 2003-09-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry L  Stewart et al → Material Service Corp; 2003-09-12 to current/open; source msha-controller-operator-history