# Relationship history for MSHA mine 2402836

Current hierarchy: **Trent  Krueger; Beaulah  Krueger → KHK and Company LLC → Krueger Pit**

- 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:** KHK and Company LLC → Krueger Pit; 2026-06-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Trent  Krueger et al → Krueger Pit; 2026-06-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Trent  Krueger et al → KHK and Company LLC; 2026-06-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Beaulah  Krueger et al → KHK and Company LLC; 2026-06-09 to current/open; source msha-controller-operator-history