# Relationship history for MSHA mine 3003575

Current hierarchy: **Maureen  Naughton → Naughton Naughton & King LLC → Naughton, Naughton & King 1**

- 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:** Naughton Naughton & King LLC → Naughton, Naughton & King 1; 2007-02-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Maureen  Naughton et al → Naughton, Naughton & King 1; 2007-02-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Maureen  Naughton et al → Naughton Naughton & King LLC; 2007-02-06 to current/open; source msha-controller-operator-history