# Relationship history for MSHA mine 3402208

Current hierarchy: **Bobby N  Oldham → Oldham Enterprises LLC → Wright Mine**

- 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:** Bobby N  Oldham → Wright Mine; 2005-12-22 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Oldham Enterprises LLC → Wright Mine; 2020-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bobby N  Oldham → Oldham Enterprises LLC; 2020-06-18 to current/open; source msha-controller-operator-history