# Relationship history for MSHA mine 3610399

Current hierarchy: **Ryan L Ruark → Endless Mountain Minerals, LLC → Starlight Quarry**

- 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

- **controller_controls_mine:** Ryan L Ruark → Starlight Quarry; 2022-05-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Endless Mountain Minerals, LLC → Starlight Quarry; 2022-07-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ryan L Ruark → Endless Mountain Minerals, LLC; 2022-07-15 to current/open; source msha-controller-operator-history